feat(cpp-object-oriented-modular-refactoring): step 6 - io-application-google-style

include/fesa/app/fesa_application.h

@@ -0,0 +1,21 @@
+#ifndef FESA_APP_FESA_APPLICATION_H_
+#define FESA_APP_FESA_APPLICATION_H_
+
+#include <string>
+#include <vector>
+
+namespace fesa {
+
+/// @brief Owns the argv-independent CLI contract and stable process exit codes.
+class FesaApplication {
+ public:
+  /// @brief Runs one solver invocation from operands and options after argv[0].
+  /// @param arguments Input path and optional `--output` pair.
+  /// @return The stable CLI exit code for usage, input, model, solver, or
+  /// output status.
+  int Run(const std::vector<std::string>& arguments);
+};
+
+}  // namespace fesa
+
+#endif  // FESA_APP_FESA_APPLICATION_H_

include/fesa/app/fesa_application.hpp

@@ -1,14 +0,0 @@
-#pragma once
-
-#include <string>
-#include <vector>
-
-namespace fesa {
-
-// Owns the argv-independent command-line contract and stable process codes.
-class FesaApplication {
-public:
-    int run(const std::vector<std::string>& arguments);
-};
-
-} // namespace fesa

include/fesa/io/abaqus/domain_mapper.h

@@ -0,0 +1,24 @@
+#ifndef FESA_IO_ABAQUS_DOMAIN_MAPPER_H_
+#define FESA_IO_ABAQUS_DOMAIN_MAPPER_H_
+
+#include "fesa/core/status.h"
+#include "fesa/io/abaqus/input_syntax.h"
+#include "fesa/model/domain.h"
+
+namespace fesa {
+
+/// @brief Maps syntax-only blocks into an approved immutable semantic model.
+/// @note Source identity and declaration order are preserved through mapping.
+class AbaqusDomainMapper {
+ public:
+  /// @brief Resolves supported Abaqus syntax into a complete Domain candidate.
+  /// @param input Parsed syntax whose source locations remain valid for
+  /// mapping.
+  /// @return A committed Domain or structured input/model diagnostics; partial
+  /// domains are never returned.
+  Result<Domain> Map(const ParsedInput& input) const;
+};
+
+}  // namespace fesa
+
+#endif  // FESA_IO_ABAQUS_DOMAIN_MAPPER_H_

include/fesa/io/abaqus/domain_mapper.hpp

@@ -1,15 +0,0 @@
-#pragma once
-
-#include "fesa/core/status.h"
-#include "fesa/io/abaqus/input_syntax.hpp"
-#include "fesa/model/domain.h"
-
-namespace fesa {
-
-// Converts syntax-only blocks into the approved immutable B33 semantic model.
-class AbaqusDomainMapper {
-public:
-    Result<Domain> map(const ParsedInput& input) const;
-};
-
-} // namespace fesa

include/fesa/io/abaqus/input_reader.h

@@ -0,0 +1,24 @@
+#ifndef FESA_IO_ABAQUS_INPUT_READER_H_
+#define FESA_IO_ABAQUS_INPUT_READER_H_
+
+#include <filesystem>
+
+#include "fesa/core/status.h"
+#include "fesa/io/abaqus/input_syntax.h"
+
+namespace fesa {
+
+/// @brief Reads Abaqus physical keyword, data, and comment syntax.
+/// @note Semantic policy is applied later by AbaqusDomainMapper.
+class AbaqusInputReader {
+ public:
+  /// @brief Parses one input file without applying semantic mapping policy.
+  /// @param input_path Path to the exact source bytes whose identity is
+  /// retained.
+  /// @return Parsed syntax or a structured input diagnostic.
+  Result<ParsedInput> Read(const std::filesystem::path& input_path) const;
+};
+
+}  // namespace fesa
+
+#endif  // FESA_IO_ABAQUS_INPUT_READER_H_

include/fesa/io/abaqus/input_reader.hpp

@@ -1,17 +0,0 @@
-#pragma once
-
-#include "fesa/core/status.h"
-#include "fesa/io/abaqus/input_syntax.hpp"
-
-#include <filesystem>
-
-namespace fesa {
-
-// Reads only physical keyword/data/comment syntax; semantic policy is applied
-// later by AbaqusDomainMapper.
-class AbaqusInputReader {
-public:
-    Result<ParsedInput> read(const std::filesystem::path& inputPath) const;
-};
-
-} // namespace fesa

include/fesa/io/abaqus/input_syntax.h

@@ -0,0 +1,46 @@
+#ifndef FESA_IO_ABAQUS_INPUT_SYNTAX_H_
+#define FESA_IO_ABAQUS_INPUT_SYNTAX_H_
+
+#include <filesystem>
+#include <optional>
+#include <string>
+#include <vector>
+
+#include "fesa/core/source_identity.h"
+
+namespace fesa {
+
+/// @brief Stores a canonical parameter name and its optional source value.
+/// @note Parameter names are canonicalized for lookup while values remain
+/// source text.
+struct KeywordParameter {
+  std::string name;
+  std::optional<std::string> value;
+};
+
+/// @brief Stores one parsed data row with its source location.
+struct DataLine {
+  std::vector<std::string> fields;
+  SourceLocation location;
+};
+
+/// @brief Stores one syntax-only keyword block and its following data rows.
+struct KeywordBlock {
+  std::string canonical_name;
+  std::string original_line;
+  std::vector<KeywordParameter> parameters;
+  std::vector<DataLine> data;
+  SourceLocation location;
+};
+
+/// @brief Stores the parsed syntax and stable identity of one Abaqus input
+/// file.
+struct ParsedInput {
+  std::filesystem::path source_path;
+  std::string source_content_identity;
+  std::vector<KeywordBlock> blocks;
+};
+
+}  // namespace fesa
+
+#endif  // FESA_IO_ABAQUS_INPUT_SYNTAX_H_

include/fesa/io/abaqus/input_syntax.hpp

@@ -1,37 +0,0 @@
-#pragma once
-
-#include "fesa/core/source_identity.h"
-
-#include <filesystem>
-#include <optional>
-#include <string>
-#include <vector>
-
-namespace fesa {
-
-// Names are canonicalized for syntax lookup while values remain source text.
-struct KeywordParameter {
-    std::string name;
-    std::optional<std::string> value;
-};
-
-struct DataLine {
-    std::vector<std::string> fields;
-    SourceLocation location;
-};
-
-struct KeywordBlock {
-    std::string canonicalName;
-    std::string originalLine;
-    std::vector<KeywordParameter> parameters;
-    std::vector<DataLine> data;
-    SourceLocation location;
-};
-
-struct ParsedInput {
-    std::filesystem::path sourcePath;
-    std::string sourceContentIdentity;
-    std::vector<KeywordBlock> blocks;
-};
-
-} // namespace fesa

include/fesa/io/hdf5/hdf5_results_writer.h

@@ -0,0 +1,28 @@
+#ifndef FESA_IO_HDF5_HDF5_RESULTS_WRITER_H_
+#define FESA_IO_HDF5_HDF5_RESULTS_WRITER_H_
+
+#include "fesa/results/results_writer.h"
+
+namespace fesa {
+
+/// @brief Writes authoritative schema-v0 HDF5 results atomically.
+/// @note HDF5 and platform types remain private to the implementation.
+class Hdf5ResultsWriter final : public ResultsWriter {
+ public:
+  /// @brief Writes and self-checks a complete candidate before finalization.
+  /// @param output_path Final authoritative path; the candidate is created in
+  /// the same directory.
+  /// @param domain Immutable source and model identity.
+  /// @param state Fully recovered analysis state.
+  /// @param diagnostics Deterministically ordered run diagnostics.
+  /// @return Success only after atomic replacement or a structured output
+  /// failure.
+  /// @note A failed candidate does not replace an existing valid final file.
+  Status Write(const std::filesystem::path& output_path, const Domain& domain,
+               const AnalysisState& state,
+               const std::vector<Diagnostic>& diagnostics) override;
+};
+
+}  // namespace fesa
+
+#endif  // FESA_IO_HDF5_HDF5_RESULTS_WRITER_H_

include/fesa/io/hdf5/hdf5_results_writer.hpp

@@ -1,17 +0,0 @@
-#pragma once
-
-#include "fesa/results/results_writer.h"
-
-namespace fesa {
-
-// Writes schema-v0 output while keeping backend and platform types private.
-class Hdf5ResultsWriter final : public ResultsWriter {
-public:
-    Status Write(
-        const std::filesystem::path& outputPath,
-        const Domain& domain,
-        const AnalysisState& state,
-        const std::vector<Diagnostic>& diagnostics) override;
-};
-
-} // namespace fesa

src/fesa/analysis/linear_static_analysis.cpp

@@ -5,8 +5,8 @@
 #include "fesa/assembly/load_assembler.h"
 #include "fesa/assembly/parallel_for.h"
 #include "fesa/assembly/sparse_assembler.h"
-#include "fesa/io/abaqus/domain_mapper.hpp"
-#include "fesa/io/abaqus/input_reader.hpp"
+#include "fesa/io/abaqus/domain_mapper.h"
+#include "fesa/io/abaqus/input_reader.h"
 #include "fesa/results/result_recovery.h"
 #include "fesa/results/results_writer.h"
 #include "fesa/solvers/linear/linear_solver.h"
@@ -65,11 +65,11 @@ Status LinearStaticAnalysis::Initialize(const AnalysisRequest& request) {
   diagnostics_.clear();
   request_ = request;
 
-  const auto parsed = AbaqusInputReader{}.read(request_.input_path);
+  const auto parsed = AbaqusInputReader{}.Read(request_.input_path);
   if (!parsed.HasValue()) {
     return parsed.GetStatus();
   }
-  auto domain = AbaqusDomainMapper{}.map(parsed.Value());
+  auto domain = AbaqusDomainMapper{}.Map(parsed.Value());
   if (!domain.HasValue()) {
     return domain.GetStatus();
   }

src/fesa/app/fesa_application.cpp

@@ -1,16 +1,16 @@
-#include "fesa/app/fesa_application.hpp"
-
-#include "fesa/analysis/linear_static_analysis.h"
-#include "fesa/assembly/parallel_for.h"
-#include "fesa/core/diagnostic.h"
-#include "fesa/io/hdf5/hdf5_results_writer.hpp"
-#include "fesa/solvers/linear/mkl_pardiso_solver.h"
+#include "fesa/app/fesa_application.h"
 
 #include <filesystem>
 #include <iostream>
 #include <string>
 #include <vector>
 
+#include "fesa/analysis/linear_static_analysis.h"
+#include "fesa/assembly/parallel_for.h"
+#include "fesa/core/diagnostic.h"
+#include "fesa/io/hdf5/hdf5_results_writer.h"
+#include "fesa/solvers/linear/mkl_pardiso_solver.h"
+
 namespace fesa {
 namespace {
 
@@ -21,93 +21,84 @@ constexpr int kModelExitCode = 4;
 constexpr int kSolverExitCode = 5;
 constexpr int kOutputExitCode = 6;
 
-bool startsWithOption(const std::string& argument) {
-    return !argument.empty() && argument.front() == '-';
+bool StartsWithOption(const std::string& argument) {
+  return !argument.empty() && argument.front() == '-';
 }
 
-Diagnostic usageDiagnostic() {
-    return {
-        Severity::kError,
-        "cli-usage",
-        {{}, 0U},
-        "",
-        "",
-        "Usage: fesa.exe <model.inp> [--output <results.h5>]."};
+Diagnostic UsageDiagnostic() {
+  return {Severity::kError,
+          "cli-usage",
+          {{}, 0U},
+          "",
+          "",
+          "Usage: fesa.exe <model.inp> [--output <results.h5>]."};
 }
 
-const char* severityName(const Severity severity) {
-    return severity == Severity::kWarning ? "warning" : "error";
+const char* SeverityName(const Severity severity) {
+  return severity == Severity::kWarning ? "warning" : "error";
 }
 
-void writeDiagnostics(std::vector<Diagnostic> diagnostics) {
-    SortDiagnostics(diagnostics);
-    for (const auto& diagnostic : diagnostics) {
-        // Stable field labels and tab separators keep empty source fields
-        // explicit without depending on locale-specific formatting.
-        std::cerr
-            << "severity=" << severityName(diagnostic.severity)
-            << '\t' << "code=" << diagnostic.code
-            << '\t' << "file="
-            << diagnostic.location.file.generic_u8string()
-            << '\t' << "line=" << diagnostic.location.line
-            << '\t' << "keyword=" << diagnostic.keyword
-            << '\t' << "entity_identity=" << diagnostic.entity_identity
-            << '\t' << "message=" << diagnostic.message
-            << '\n';
-    }
+void WriteDiagnostics(std::vector<Diagnostic> diagnostics) {
+  SortDiagnostics(diagnostics);
+  for (const auto& diagnostic : diagnostics) {
+    // Stable field labels and tab separators keep empty source fields
+    // explicit without depending on locale-specific formatting.
+    std::cerr << "severity=" << SeverityName(diagnostic.severity) << '\t'
+              << "code=" << diagnostic.code << '\t'
+              << "file=" << diagnostic.location.file.generic_u8string() << '\t'
+              << "line=" << diagnostic.location.line << '\t'
+              << "keyword=" << diagnostic.keyword << '\t'
+              << "entity_identity=" << diagnostic.entity_identity << '\t'
+              << "message=" << diagnostic.message << '\n';
+  }
 }
 
-int exitCodeFor(const Status& status) {
-    switch (status.Category().value_or(FailureCategory::kInput)) {
+int ExitCodeFor(const Status& status) {
+  switch (status.Category().value_or(FailureCategory::kInput)) {
     case FailureCategory::kInput:
-        return kInputExitCode;
+      return kInputExitCode;
     case FailureCategory::kModel:
-        return kModelExitCode;
+      return kModelExitCode;
     case FailureCategory::kSolver:
-        return kSolverExitCode;
+      return kSolverExitCode;
     case FailureCategory::kOutput:
-        return kOutputExitCode;
-    }
-    return kInputExitCode;
+      return kOutputExitCode;
+  }
+  return kInputExitCode;
 }
 
-} // namespace
+}  // namespace
 
-int FesaApplication::run(const std::vector<std::string>& arguments) {
-    const bool defaultOutputForm =
-        arguments.size() == 1U &&
-        !arguments[0U].empty() &&
-        !startsWithOption(arguments[0U]);
-    const bool explicitOutputForm =
-        arguments.size() == 3U &&
-        !arguments[0U].empty() &&
-        !startsWithOption(arguments[0U]) &&
-        arguments[1U] == "--output" &&
-        !arguments[2U].empty() &&
-        !startsWithOption(arguments[2U]);
-    if (!defaultOutputForm && !explicitOutputForm) {
-        writeDiagnostics({usageDiagnostic()});
-        return kUsageExitCode;
-    }
+int FesaApplication::Run(const std::vector<std::string>& arguments) {
+  const bool default_output_form = arguments.size() == 1U &&
+                                   !arguments[0U].empty() &&
+                                   !StartsWithOption(arguments[0U]);
+  const bool explicit_output_form =
+      arguments.size() == 3U && !arguments[0U].empty() &&
+      !StartsWithOption(arguments[0U]) && arguments[1U] == "--output" &&
+      !arguments[2U].empty() && !StartsWithOption(arguments[2U]);
+  if (!default_output_form && !explicit_output_form) {
+    WriteDiagnostics({UsageDiagnostic()});
+    return kUsageExitCode;
+  }
 
-    AnalysisRequest request;
-    request.input_path = arguments[0U];
-    request.output_path = explicitOutputForm
-        ? std::filesystem::path{arguments[2U]}
-        : std::filesystem::current_path() / "results.h5";
+  AnalysisRequest request;
+  request.input_path = arguments[0U];
+  request.output_path = explicit_output_form
+                            ? std::filesystem::path{arguments[2U]}
+                            : std::filesystem::current_path() / "results.h5";
 
-    TbbParallelFor parallelFor;
-    MklPardisoSolver linearSolver;
-    Hdf5ResultsWriter resultsWriter;
-    LinearStaticAnalysis analysis{
-        parallelFor, linearSolver, resultsWriter};
-    const Status status = analysis.Run(request);
-    if (status.IsOk()) {
-        return kSuccessExitCode;
-    }
+  TbbParallelFor parallel_for;
+  MklPardisoSolver linear_solver;
+  Hdf5ResultsWriter results_writer;
+  LinearStaticAnalysis analysis{parallel_for, linear_solver, results_writer};
+  const Status status = analysis.Run(request);
+  if (status.IsOk()) {
+    return kSuccessExitCode;
+  }
 
-    writeDiagnostics(status.Diagnostics());
-    return exitCodeFor(status);
+  WriteDiagnostics(status.Diagnostics());
+  return ExitCodeFor(status);
 }
 
-} // namespace fesa
+}  // namespace fesa

src/fesa/app/main.cpp

@@ -1,17 +1,17 @@
-#include "fesa/app/fesa_application.hpp"
-
 #include <cstddef>
 #include <string>
 #include <vector>
 
+#include "fesa/app/fesa_application.h"
+
 int main(const int argc, char* argv[]) {
-    std::vector<std::string> arguments;
-    if (argc > 1) {
-        arguments.reserve(static_cast<std::size_t>(argc - 1));
-    }
-    // The application boundary receives only operands and options, not argv[0].
-    for (int index = 1; index < argc; ++index) {
-        arguments.emplace_back(argv[index]);
-    }
-    return fesa::FesaApplication{}.run(arguments);
+  std::vector<std::string> arguments;
+  if (argc > 1) {
+    arguments.reserve(static_cast<std::size_t>(argc - 1));
+  }
+  // The application boundary receives only operands and options, not argv[0].
+  for (int index = 1; index < argc; ++index) {
+    arguments.emplace_back(argv[index]);
+  }
+  return fesa::FesaApplication{}.Run(arguments);
 }

src/fesa/io/abaqus/input_reader.cpp

@@ -1,4 +1,4 @@
-#include "fesa/io/abaqus/input_reader.hpp"
+#include "fesa/io/abaqus/input_reader.h"
 
 #include <algorithm>
 #include <cstdint>
@@ -15,202 +15,176 @@
 namespace fesa {
 namespace {
 
-std::filesystem::path normalizedPath(const std::filesystem::path& path) {
-    std::error_code error;
-    const auto absolute = std::filesystem::absolute(path, error);
-    return (error ? path : absolute).lexically_normal();
+std::filesystem::path NormalizedPath(const std::filesystem::path& path) {
+  std::error_code error;
+  const auto absolute = std::filesystem::absolute(path, error);
+  return (error ? path : absolute).lexically_normal();
 }
 
-bool isAsciiWhitespace(char value) noexcept {
-    return value == ' ' || value == '\t' || value == '\r' ||
-           value == '\n' || value == '\f' || value == '\v';
+bool IsAsciiWhitespace(char value) noexcept {
+  return value == ' ' || value == '\t' || value == '\r' || value == '\n' ||
+         value == '\f' || value == '\v';
 }
 
-std::string trim(std::string_view text) {
-    while (!text.empty() && isAsciiWhitespace(text.front())) {
-        text.remove_prefix(1U);
+std::string Trim(std::string_view text) {
+  while (!text.empty() && IsAsciiWhitespace(text.front())) {
+    text.remove_prefix(1U);
+  }
+  while (!text.empty() && IsAsciiWhitespace(text.back())) {
+    text.remove_suffix(1U);
+  }
+  return std::string{text};
+}
+
+std::string UppercaseAscii(std::string value) {
+  std::transform(value.begin(), value.end(), value.begin(), [](char character) {
+    if (character >= 'a' && character <= 'z') {
+      return static_cast<char>(character - 'a' + 'A');
     }
-    while (!text.empty() && isAsciiWhitespace(text.back())) {
-        text.remove_suffix(1U);
-    }
-    return std::string{text};
+    return character;
+  });
+  return value;
 }
 
-std::string uppercaseAscii(std::string value) {
-    std::transform(
-        value.begin(), value.end(), value.begin(), [](char character) {
-            if (character >= 'a' && character <= 'z') {
-                return static_cast<char>(character - 'a' + 'A');
-            }
-            return character;
-        });
-    return value;
+std::vector<std::string> SplitFields(std::string_view line) {
+  std::vector<std::string> fields;
+  std::size_t field_start = 0U;
+  while (true) {
+    const std::size_t separator = line.find(',', field_start);
+    if (separator == std::string_view::npos) {
+      fields.push_back(Trim(line.substr(field_start)));
+      break;
+    }
+    fields.push_back(Trim(line.substr(field_start, separator - field_start)));
+    field_start = separator + 1U;
+  }
+  return fields;
 }
 
-std::vector<std::string> splitFields(std::string_view line) {
-    std::vector<std::string> fields;
-    std::size_t fieldStart = 0U;
-    while (true) {
-        const std::size_t separator = line.find(',', fieldStart);
-        if (separator == std::string_view::npos) {
-            fields.push_back(trim(line.substr(fieldStart)));
-            break;
-        }
-        fields.push_back(trim(line.substr(fieldStart, separator - fieldStart)));
-        fieldStart = separator + 1U;
-    }
-    return fields;
+/// @brief Computes the stable identity of the exact source bytes.
+/// @note This runs before line-ending handling so parser provenance is not
+/// affected by text normalization.
+std::string ContentIdentity(const std::string& bytes) {
+  constexpr std::uint64_t kOffsetBasis = 14695981039346656037ULL;
+  constexpr std::uint64_t kPrime = 1099511628211ULL;
+  std::uint64_t hash = kOffsetBasis;
+  // Hash the binary input before CRLF handling so provenance follows the
+  // exact file bytes rather than a normalized text representation.
+  for (const unsigned char byte : bytes) {
+    hash ^= static_cast<std::uint64_t>(byte);
+    hash *= kPrime;
+  }
+
+  std::ostringstream formatted;
+  formatted << "fnv1a64:" << std::hex << std::setfill('0') << std::setw(16)
+            << hash;
+  return formatted.str();
 }
 
-std::string contentIdentity(const std::string& bytes) {
-    constexpr std::uint64_t offsetBasis = 14695981039346656037ULL;
-    constexpr std::uint64_t prime = 1099511628211ULL;
-    std::uint64_t hash = offsetBasis;
-    // Hash the binary input before CRLF handling so provenance follows the
-    // exact file bytes rather than a normalized text representation.
-    for (const unsigned char byte : bytes) {
-        hash ^= static_cast<std::uint64_t>(byte);
-        hash *= prime;
-    }
-
-    std::ostringstream formatted;
-    formatted << "fnv1a64:" << std::hex << std::setfill('0')
-              << std::setw(16) << hash;
-    return formatted.str();
-}
-
-Result<ParsedInput> failure(
-    const std::filesystem::path& sourcePath,
-    std::size_t line,
-    std::string code,
-    std::string keyword,
-    std::string message) {
-    Diagnostic diagnostic{
-        Severity::kError,
-        std::move(code),
-        {sourcePath, line},
-        std::move(keyword),
-        "",
-        std::move(message)};
-    return Result<ParsedInput>::Failure(Status::Failure(
-        FailureCategory::kInput, {std::move(diagnostic)}));
-}
-
-} // namespace
-
-Result<ParsedInput> AbaqusInputReader::read(
-    const std::filesystem::path& inputPath) const {
-    const auto sourcePath = normalizedPath(inputPath);
-    std::ifstream stream{sourcePath, std::ios::binary};
-    if (!stream) {
-        return failure(
-            sourcePath,
-            0U,
-            "input-file-unreadable",
-            "",
-            "The Abaqus input file could not be opened for reading.");
-    }
-
-    const std::string bytes{
-        std::istreambuf_iterator<char>{stream},
-        std::istreambuf_iterator<char>{}};
-    if (stream.bad()) {
-        return failure(
-            sourcePath,
-            0U,
-            "input-file-unreadable",
-            "",
-            "The Abaqus input file could not be read completely.");
-    }
-
-    ParsedInput parsed{sourcePath, contentIdentity(bytes), {}};
-    std::size_t lineStart = 0U;
-    std::size_t lineNumber = 1U;
-    while (lineStart < bytes.size()) {
-        const std::size_t newline = bytes.find('\n', lineStart);
-        const std::size_t lineEnd =
-            newline == std::string::npos ? bytes.size() : newline;
-        std::string originalLine = bytes.substr(lineStart, lineEnd - lineStart);
-        if (!originalLine.empty() && originalLine.back() == '\r') {
-            originalLine.pop_back();
-        }
-
-        const std::string trimmedLine = trim(originalLine);
-        if (!trimmedLine.empty() && trimmedLine.rfind("**", 0U) != 0U) {
-            if (trimmedLine.front() == '*') {
-                const auto fields = splitFields(trimmedLine);
-                const std::string keywordText =
-                    fields.empty() ? std::string{} : trim(
-                        std::string_view{fields[0]}.substr(1U));
-                if (keywordText.empty()) {
-                    return failure(
-                        sourcePath,
-                        lineNumber,
-                        "malformed-keyword",
-                        trimmedLine,
-                        "A keyword line requires a non-empty keyword name.");
-                }
-
-                KeywordBlock block{
-                    uppercaseAscii(keywordText),
-                    originalLine,
-                    {},
-                    {},
-                    {sourcePath, lineNumber}};
-                for (std::size_t index = 1U; index < fields.size(); ++index) {
-                    const std::string& field = fields[index];
-                    if (field.empty()) {
-                        return failure(
-                            sourcePath,
-                            lineNumber,
-                            "malformed-keyword",
-                            block.canonicalName,
-                            "A keyword parameter name cannot be empty.");
-                    }
-
-                    const std::size_t equals = field.find('=');
-                    const std::string parameterName = trim(std::string_view{field}.substr(
-                        0U, equals));
-                    if (parameterName.empty()) {
-                        return failure(
-                            sourcePath,
-                            lineNumber,
-                            "malformed-keyword",
-                            block.canonicalName,
-                            "A keyword parameter name cannot be empty.");
-                    }
-
-                    KeywordParameter parameter{
-                        uppercaseAscii(parameterName), std::nullopt};
-                    if (equals != std::string::npos) {
-                        parameter.value = trim(
-                            std::string_view{field}.substr(equals + 1U));
-                    }
-                    block.parameters.push_back(std::move(parameter));
-                }
-                parsed.blocks.push_back(std::move(block));
-            } else {
-                if (parsed.blocks.empty()) {
-                    return failure(
-                        sourcePath,
-                        lineNumber,
-                        "orphan-data-line",
+Result<ParsedInput> Failure(const std::filesystem::path& source_path,
+                            std::size_t line, std::string code,
+                            std::string keyword, std::string message) {
+  Diagnostic diagnostic{Severity::kError,
+                        std::move(code),
+                        {source_path, line},
+                        std::move(keyword),
                         "",
-                        "A data line must follow a keyword line.");
-                }
-                parsed.blocks.back().data.push_back(
-                    {splitFields(originalLine), {sourcePath, lineNumber}});
-            }
-        }
-
-        if (newline == std::string::npos) {
-            break;
-        }
-        lineStart = newline + 1U;
-        ++lineNumber;
-    }
-
-    return Result<ParsedInput>::Success(std::move(parsed));
+                        std::move(message)};
+  return Result<ParsedInput>::Failure(
+      Status::Failure(FailureCategory::kInput, {std::move(diagnostic)}));
 }
 
-} // namespace fesa
+}  // namespace
+
+Result<ParsedInput> AbaqusInputReader::Read(
+    const std::filesystem::path& input_path) const {
+  const auto source_path = NormalizedPath(input_path);
+  std::ifstream stream{source_path, std::ios::binary};
+  if (!stream) {
+    return Failure(source_path, 0U, "input-file-unreadable", "",
+                   "The Abaqus input file could not be opened for reading.");
+  }
+
+  const std::string bytes{std::istreambuf_iterator<char>{stream},
+                          std::istreambuf_iterator<char>{}};
+  if (stream.bad()) {
+    return Failure(source_path, 0U, "input-file-unreadable", "",
+                   "The Abaqus input file could not be read completely.");
+  }
+
+  ParsedInput parsed{source_path, ContentIdentity(bytes), {}};
+  std::size_t line_start = 0U;
+  std::size_t line_number = 1U;
+  while (line_start < bytes.size()) {
+    const std::size_t newline = bytes.find('\n', line_start);
+    const std::size_t line_end =
+        newline == std::string::npos ? bytes.size() : newline;
+    std::string original_line = bytes.substr(line_start, line_end - line_start);
+    if (!original_line.empty() && original_line.back() == '\r') {
+      original_line.pop_back();
+    }
+
+    const std::string trimmed_line = Trim(original_line);
+    if (!trimmed_line.empty() && trimmed_line.rfind("**", 0U) != 0U) {
+      if (trimmed_line.front() == '*') {
+        const auto fields = SplitFields(trimmed_line);
+        const std::string keyword_text =
+            fields.empty() ? std::string{}
+                           : Trim(std::string_view{fields[0]}.substr(1U));
+        if (keyword_text.empty()) {
+          return Failure(source_path, line_number, "malformed-keyword",
+                         trimmed_line,
+                         "A keyword line requires a non-empty keyword name.");
+        }
+
+        KeywordBlock block{UppercaseAscii(keyword_text),
+                           original_line,
+                           {},
+                           {},
+                           {source_path, line_number}};
+        for (std::size_t index = 1U; index < fields.size(); ++index) {
+          const std::string& field = fields[index];
+          if (field.empty()) {
+            return Failure(source_path, line_number, "malformed-keyword",
+                           block.canonical_name,
+                           "A keyword parameter name cannot be empty.");
+          }
+
+          const std::size_t equals = field.find('=');
+          const std::string parameter_name =
+              Trim(std::string_view{field}.substr(0U, equals));
+          if (parameter_name.empty()) {
+            return Failure(source_path, line_number, "malformed-keyword",
+                           block.canonical_name,
+                           "A keyword parameter name cannot be empty.");
+          }
+
+          KeywordParameter parameter{UppercaseAscii(parameter_name),
+                                     std::nullopt};
+          if (equals != std::string::npos) {
+            parameter.value = Trim(std::string_view{field}.substr(equals + 1U));
+          }
+          block.parameters.push_back(std::move(parameter));
+        }
+        parsed.blocks.push_back(std::move(block));
+      } else {
+        if (parsed.blocks.empty()) {
+          return Failure(source_path, line_number, "orphan-data-line", "",
+                         "A data line must follow a keyword line.");
+        }
+        parsed.blocks.back().data.push_back(
+            {SplitFields(original_line), {source_path, line_number}});
+      }
+    }
+
+    if (newline == std::string::npos) {
+      break;
+    }
+    line_start = newline + 1U;
+    ++line_number;
+  }
+
+  return Result<ParsedInput>::Success(std::move(parsed));
+}
+
+}  // namespace fesa

tests/integration/app/fesa_application_test.cpp

@@ -1,4 +1,4 @@
-#include "fesa/app/fesa_application.hpp"
+#include "fesa/app/fesa_application.h"
 
 #include <gtest/gtest.h>
 #include <hdf5.h>
@@ -19,101 +19,94 @@ namespace {
 constexpr const char* kStepRoot = "/steps/Step-1/frames/0";
 
 class TempDirectory {
-public:
-    explicit TempDirectory(const std::string& label) {
-        static std::atomic<unsigned long long> sequence{0U};
-        const auto tick = std::chrono::steady_clock::now()
-                              .time_since_epoch()
-                              .count();
-        path_ = std::filesystem::temp_directory_path() /
-            ("fesa-step24-app-" + label + "-" +
-             std::to_string(tick) + "-" +
+ public:
+  explicit TempDirectory(const std::string& label) {
+    static std::atomic<unsigned long long> sequence{0U};
+    const auto tick =
+        std::chrono::steady_clock::now().time_since_epoch().count();
+    path_ = std::filesystem::temp_directory_path() /
+            ("fesa-step24-app-" + label + "-" + std::to_string(tick) + "-" +
              std::to_string(sequence.fetch_add(1U)));
-        std::error_code error;
-        if (!std::filesystem::create_directory(path_, error) || error) {
-            throw std::runtime_error{"Unable to create the Step 24 app fixture."};
-        }
+    std::error_code error;
+    if (!std::filesystem::create_directory(path_, error) || error) {
+      throw std::runtime_error{"Unable to create the Step 24 app fixture."};
     }
+  }
 
-    TempDirectory(const TempDirectory&) = delete;
-    TempDirectory& operator=(const TempDirectory&) = delete;
+  TempDirectory(const TempDirectory&) = delete;
+  TempDirectory& operator=(const TempDirectory&) = delete;
 
-    ~TempDirectory() {
-        std::error_code ignored;
-        std::filesystem::remove_all(path_, ignored);
-    }
+  ~TempDirectory() {
+    std::error_code ignored;
+    std::filesystem::remove_all(path_, ignored);
+  }
 
-    const std::filesystem::path& path() const noexcept { return path_; }
+  const std::filesystem::path& Path() const noexcept { return path_; }
 
-private:
-    std::filesystem::path path_;
+ private:
+  std::filesystem::path path_;
 };
 
 class CurrentDirectoryGuard {
-public:
-    explicit CurrentDirectoryGuard(const std::filesystem::path& replacement)
-        : original_{std::filesystem::current_path()} {
-        std::filesystem::current_path(replacement);
-    }
+ public:
+  explicit CurrentDirectoryGuard(const std::filesystem::path& replacement)
+      : original_{std::filesystem::current_path()} {
+    std::filesystem::current_path(replacement);
+  }
 
-    CurrentDirectoryGuard(const CurrentDirectoryGuard&) = delete;
-    CurrentDirectoryGuard& operator=(const CurrentDirectoryGuard&) = delete;
+  CurrentDirectoryGuard(const CurrentDirectoryGuard&) = delete;
+  CurrentDirectoryGuard& operator=(const CurrentDirectoryGuard&) = delete;
 
-    ~CurrentDirectoryGuard() {
-        std::error_code ignored;
-        std::filesystem::current_path(original_, ignored);
-    }
+  ~CurrentDirectoryGuard() {
+    std::error_code ignored;
+    std::filesystem::current_path(original_, ignored);
+  }
 
-private:
-    std::filesystem::path original_;
+ private:
+  std::filesystem::path original_;
 };
 
 class Hdf5Handle {
-public:
-    using Closer = herr_t (*)(hid_t);
+ public:
+  using Closer = herr_t (*)(hid_t);
 
-    Hdf5Handle(const hid_t value, Closer closer)
-        : value_{value}, closer_{closer} {}
-    Hdf5Handle(const Hdf5Handle&) = delete;
-    Hdf5Handle& operator=(const Hdf5Handle&) = delete;
-    Hdf5Handle(Hdf5Handle&& other) noexcept
-        : value_{other.value_}, closer_{other.closer_} {
-        other.value_ = -1;
-        other.closer_ = nullptr;
-    }
-    ~Hdf5Handle() {
-        if (value_ >= 0 && closer_ != nullptr) {
-            (void)closer_(value_);
-        }
+  Hdf5Handle(const hid_t value, Closer closer)
+      : value_{value}, closer_{closer} {}
+  Hdf5Handle(const Hdf5Handle&) = delete;
+  Hdf5Handle& operator=(const Hdf5Handle&) = delete;
+  Hdf5Handle(Hdf5Handle&& other) noexcept
+      : value_{other.value_}, closer_{other.closer_} {
+    other.value_ = -1;
+    other.closer_ = nullptr;
+  }
+  ~Hdf5Handle() {
+    if (value_ >= 0 && closer_ != nullptr) {
+      (void)closer_(value_);
     }
+  }
 
-    hid_t get() const noexcept { return value_; }
+  hid_t Get() const noexcept { return value_; }
 
-private:
-    hid_t value_{-1};
-    Closer closer_{nullptr};
+ private:
+  hid_t value_{-1};
+  Closer closer_{nullptr};
 };
 
-void writeText(const std::filesystem::path& path, const std::string& text) {
-    std::ofstream stream{path, std::ios::binary | std::ios::trunc};
-    stream.write(text.data(), static_cast<std::streamsize>(text.size()));
-    if (!stream) {
-        throw std::runtime_error{"Unable to write the Step 24 app input."};
-    }
+void WriteText(const std::filesystem::path& path, const std::string& text) {
+  std::ofstream stream{path, std::ios::binary | std::ios::trunc};
+  stream.write(text.data(), static_cast<std::streamsize>(text.size()));
+  if (!stream) {
+    throw std::runtime_error{"Unable to write the Step 24 app input."};
+  }
 }
 
-std::string axialDeck(
-    const bool constrained,
-    const bool zeroLength,
-    const bool outputRequests) {
-    const std::string secondNode = zeroLength
-        ? "2, 0., 0., 0.\n"
-        : "2, 2., 0., 0.\n";
-    const std::string boundaries = constrained
-        ? "*Boundary\nRoot, 1, 6\nTip, 2, 6\n"
-        : "";
-    const std::string outputs = outputRequests
-        ? R"inp(*Output, field
+std::string AxialDeck(const bool constrained, const bool zero_length,
+                      const bool output_requests) {
+  const std::string second_node =
+      zero_length ? "2, 0., 0., 0.\n" : "2, 2., 0., 0.\n";
+  const std::string boundaries =
+      constrained ? "*Boundary\nRoot, 1, 6\nTip, 2, 6\n" : "";
+  const std::string outputs = output_requests ? R"inp(*Output, field
 *Node Output
 U, RF
 *Element Output, directions=YES
@@ -121,12 +114,13 @@ S, SF
 *Output, history
 *Contact Output
 )inp"
-        : "";
+                                              : "";
 
-    return std::string{R"inp(*Part, name=BeamPart
+  return std::string{R"inp(*Part, name=BeamPart
 *Node
 1, 0., 0., 0.
-)inp"} + secondNode + R"inp(*Element, type=B33
+)inp"} + second_node +
+         R"inp(*Element, type=B33
 1, 1, 2
 *Elset, elset=BeamSet
 1
@@ -145,17 +139,19 @@ S, SF
 *Material, name=Steel
 *Elastic
 100., 0.25
-)inp" + boundaries + R"inp(*Step, name=Load, nlgeom=NO
+)inp" + boundaries +
+         R"inp(*Step, name=Load, nlgeom=NO
 *Static
 0.1, 1., 0.01, 1.
 *Cload
 Tip, 1, 10.
-)inp" + outputs + R"inp(*End Step
+)inp" + outputs +
+         R"inp(*End Step
 )inp";
 }
 
-std::string allConstrainedShellDeck() {
-    return R"inp(*Part, name=ShellPart
+std::string AllConstrainedShellDeck() {
+  return R"inp(*Part, name=ShellPart
 *Node
 1, 0., 0., 0.
 2, 1., 0., 0.
@@ -186,299 +182,277 @@ All, 1, 6
 )inp";
 }
 
-Hdf5Handle openFile(const std::filesystem::path& path) {
-    const hid_t file = H5Fopen(
-        path.string().c_str(), H5F_ACC_RDONLY, H5P_DEFAULT);
-    if (file < 0) {
-        throw std::runtime_error{"Unable to open the CLI HDF5 artifact."};
-    }
-    return Hdf5Handle{file, H5Fclose};
+Hdf5Handle OpenFile(const std::filesystem::path& path) {
+  const hid_t file =
+      H5Fopen(path.string().c_str(), H5F_ACC_RDONLY, H5P_DEFAULT);
+  if (file < 0) {
+    throw std::runtime_error{"Unable to open the CLI HDF5 artifact."};
+  }
+  return Hdf5Handle{file, H5Fclose};
 }
 
-Hdf5Handle openDataset(const hid_t file, const std::string& path) {
-    const hid_t dataset = H5Dopen2(file, path.c_str(), H5P_DEFAULT);
-    if (dataset < 0) {
-        throw std::runtime_error{"Unable to open mandatory dataset: " + path};
-    }
-    return Hdf5Handle{dataset, H5Dclose};
+Hdf5Handle OpenDataset(const hid_t file, const std::string& path) {
+  const hid_t dataset = H5Dopen2(file, path.c_str(), H5P_DEFAULT);
+  if (dataset < 0) {
+    throw std::runtime_error{"Unable to open mandatory dataset: " + path};
+  }
+  return Hdf5Handle{dataset, H5Dclose};
 }
 
-std::vector<hsize_t> datasetDimensions(
-    const hid_t file, const std::string& path) {
-    const auto dataset = openDataset(file, path);
-    Hdf5Handle space{H5Dget_space(dataset.get()), H5Sclose};
-    const int rank = H5Sget_simple_extent_ndims(space.get());
-    if (space.get() < 0 || rank < 0) {
-        throw std::runtime_error{"Unable to inspect mandatory dataset dimensions."};
-    }
-    std::vector<hsize_t> dimensions(static_cast<std::size_t>(rank));
-    if (rank > 0 &&
-        H5Sget_simple_extent_dims(space.get(), dimensions.data(), nullptr) < 0) {
-        throw std::runtime_error{"Unable to read mandatory dataset dimensions."};
-    }
-    return dimensions;
+std::vector<hsize_t> DatasetDimensions(const hid_t file,
+                                       const std::string& path) {
+  const auto dataset = OpenDataset(file, path);
+  Hdf5Handle space{H5Dget_space(dataset.Get()), H5Sclose};
+  const int rank = H5Sget_simple_extent_ndims(space.Get());
+  if (space.Get() < 0 || rank < 0) {
+    throw std::runtime_error{"Unable to inspect mandatory dataset dimensions."};
+  }
+  std::vector<hsize_t> dimensions(static_cast<std::size_t>(rank));
+  if (rank > 0 &&
+      H5Sget_simple_extent_dims(space.Get(), dimensions.data(), nullptr) < 0) {
+    throw std::runtime_error{"Unable to read mandatory dataset dimensions."};
+  }
+  return dimensions;
 }
 
-std::vector<double> readDoubleDataset(
-    const hid_t file, const std::string& path) {
-    const auto dimensions = datasetDimensions(file, path);
-    std::size_t count = 1U;
-    for (const hsize_t dimension : dimensions) {
-        count *= static_cast<std::size_t>(dimension);
-    }
-    const auto dataset = openDataset(file, path);
-    std::vector<double> values(count);
-    if (!values.empty() &&
-        H5Dread(dataset.get(), H5T_NATIVE_DOUBLE, H5S_ALL, H5S_ALL,
-                H5P_DEFAULT, values.data()) < 0) {
-        throw std::runtime_error{"Unable to read mandatory numeric results."};
-    }
-    return values;
+std::vector<double> ReadDoubleDataset(const hid_t file,
+                                      const std::string& path) {
+  const auto dimensions = DatasetDimensions(file, path);
+  std::size_t count = 1U;
+  for (const hsize_t dimension : dimensions) {
+    count *= static_cast<std::size_t>(dimension);
+  }
+  const auto dataset = OpenDataset(file, path);
+  std::vector<double> values(count);
+  if (!values.empty() && H5Dread(dataset.Get(), H5T_NATIVE_DOUBLE, H5S_ALL,
+                                 H5S_ALL, H5P_DEFAULT, values.data()) < 0) {
+    throw std::runtime_error{"Unable to read mandatory numeric results."};
+  }
+  return values;
 }
 
-std::string readStringAttribute(const hid_t object, const char* name) {
-    Hdf5Handle attribute{H5Aopen(object, name, H5P_DEFAULT), H5Aclose};
-    Hdf5Handle type{H5Aget_type(attribute.get()), H5Tclose};
-    if (attribute.get() < 0 || type.get() < 0 ||
-        H5Tget_class(type.get()) != H5T_STRING ||
-        H5Tis_variable_str(type.get()) <= 0) {
-        throw std::runtime_error{"Expected a variable-length string attribute."};
-    }
-    char* raw = nullptr;
-    if (H5Aread(attribute.get(), type.get(), &raw) < 0 || raw == nullptr) {
-        throw std::runtime_error{"Unable to read the HDF5 identity attribute."};
-    }
-    const std::string value{raw};
-    (void)H5free_memory(raw);
-    return value;
+std::string ReadStringAttribute(const hid_t object, const char* name) {
+  Hdf5Handle attribute{H5Aopen(object, name, H5P_DEFAULT), H5Aclose};
+  Hdf5Handle type{H5Aget_type(attribute.Get()), H5Tclose};
+  if (attribute.Get() < 0 || type.Get() < 0 ||
+      H5Tget_class(type.Get()) != H5T_STRING ||
+      H5Tis_variable_str(type.Get()) <= 0) {
+    throw std::runtime_error{"Expected a variable-length string attribute."};
+  }
+  char* raw = nullptr;
+  if (H5Aread(attribute.Get(), type.Get(), &raw) < 0 || raw == nullptr) {
+    throw std::runtime_error{"Unable to read the HDF5 identity attribute."};
+  }
+  const std::string value{raw};
+  (void)H5free_memory(raw);
+  return value;
 }
 
-void expectMandatoryInventory(const hid_t file) {
-    for (const char* path : {
-             "/metadata",
-             "/model/nodes",
-             "/model/elements",
-             "/steps/Step-1/frames/0/nodal/displacement",
-             "/steps/Step-1/frames/0/nodal/reaction",
-             "/steps/Step-1/frames/0/element/end_force_local",
-             "/steps/Step-1/frames/0/element/section_resultant",
-             "/steps/Step-1/frames/0/element/generalized_strain",
-             "/steps/Step-1/frames/0/element/generalized_resultant",
-             "/steps/Step-1/frames/0/element/stress_s11",
-             "/diagnostics"}) {
-        EXPECT_GT(H5Lexists(file, path, H5P_DEFAULT), 0) << path;
-    }
+void ExpectMandatoryInventory(const hid_t file) {
+  for (const char* path :
+       {"/metadata", "/model/nodes", "/model/elements",
+        "/steps/Step-1/frames/0/nodal/displacement",
+        "/steps/Step-1/frames/0/nodal/reaction",
+        "/steps/Step-1/frames/0/element/end_force_local",
+        "/steps/Step-1/frames/0/element/section_resultant",
+        "/steps/Step-1/frames/0/element/generalized_strain",
+        "/steps/Step-1/frames/0/element/generalized_resultant",
+        "/steps/Step-1/frames/0/element/stress_s11", "/diagnostics"}) {
+    EXPECT_GT(H5Lexists(file, path, H5P_DEFAULT), 0) << path;
+  }
 }
 
-void expectFesaHdf5Identity(
-    const std::filesystem::path& output,
-    const std::filesystem::path& input) {
-    ASSERT_TRUE(std::filesystem::exists(output));
-    ASSERT_GT(H5Fis_hdf5(output.string().c_str()), 0);
-    const auto file = openFile(output);
-    expectMandatoryInventory(file.get());
-    Hdf5Handle metadata{
-        H5Gopen2(file.get(), "/metadata", H5P_DEFAULT), H5Gclose};
-    ASSERT_GE(metadata.get(), 0);
-    EXPECT_EQ(
-        readStringAttribute(metadata.get(), "feature_id"),
-        "linear-static-3d-euler-beam");
-    const std::string normalizedInput =
-        std::filesystem::absolute(input).lexically_normal().generic_u8string();
-    EXPECT_EQ(
-        readStringAttribute(metadata.get(), "source_input_identity").find(
-            "path=" + normalizedInput + ";content_identity="),
-        0U);
+void ExpectFesaHdf5Identity(const std::filesystem::path& output,
+                            const std::filesystem::path& input) {
+  ASSERT_TRUE(std::filesystem::exists(output));
+  ASSERT_GT(H5Fis_hdf5(output.string().c_str()), 0);
+  const auto file = OpenFile(output);
+  ExpectMandatoryInventory(file.Get());
+  Hdf5Handle metadata{H5Gopen2(file.Get(), "/metadata", H5P_DEFAULT), H5Gclose};
+  ASSERT_GE(metadata.Get(), 0);
+  EXPECT_EQ(ReadStringAttribute(metadata.Get(), "feature_id"),
+            "linear-static-3d-euler-beam");
+  const std::string normalized_input =
+      std::filesystem::absolute(input).lexically_normal().generic_u8string();
+  EXPECT_EQ(ReadStringAttribute(metadata.Get(), "source_input_identity")
+                .find("path=" + normalized_input + ";content_identity="),
+            0U);
 }
 
-void expectShellHdf5Identity(
-    const std::filesystem::path& output,
-    const std::filesystem::path& input) {
-    ASSERT_TRUE(std::filesystem::exists(output));
-    ASSERT_GT(H5Fis_hdf5(output.string().c_str()), 0);
-    const auto file = openFile(output);
-    Hdf5Handle metadata{
-        H5Gopen2(file.get(), "/metadata", H5P_DEFAULT), H5Gclose};
-    ASSERT_GE(metadata.get(), 0);
-    EXPECT_EQ(
-        readStringAttribute(metadata.get(), "feature_id"),
-        "linear-static-mitc4-shell");
-    EXPECT_GT(
-        H5Lexists(
-            file.get(),
-            "/steps/Step-1/frames/0/element/shell/generalized_strain",
-            H5P_DEFAULT),
-        0);
-    EXPECT_EQ(
-        datasetDimensions(
-            file.get(),
-            "/steps/Step-1/frames/0/nodal/displacement"),
-        (std::vector<hsize_t>{4U, 6U}));
-    const std::string normalizedInput =
-        std::filesystem::absolute(input).lexically_normal().generic_u8string();
-    EXPECT_EQ(
-        readStringAttribute(metadata.get(), "source_input_identity").find(
-            "path=" + normalizedInput + ";content_identity="),
-        0U);
+void ExpectShellHdf5Identity(const std::filesystem::path& output,
+                             const std::filesystem::path& input) {
+  ASSERT_TRUE(std::filesystem::exists(output));
+  ASSERT_GT(H5Fis_hdf5(output.string().c_str()), 0);
+  const auto file = OpenFile(output);
+  Hdf5Handle metadata{H5Gopen2(file.Get(), "/metadata", H5P_DEFAULT), H5Gclose};
+  ASSERT_GE(metadata.Get(), 0);
+  EXPECT_EQ(ReadStringAttribute(metadata.Get(), "feature_id"),
+            "linear-static-mitc4-shell");
+  EXPECT_GT(H5Lexists(file.Get(),
+                      "/steps/Step-1/frames/0/element/shell/generalized_strain",
+                      H5P_DEFAULT),
+            0);
+  EXPECT_EQ(DatasetDimensions(file.Get(),
+                              "/steps/Step-1/frames/0/nodal/displacement"),
+            (std::vector<hsize_t>{4U, 6U}));
+  const std::string normalized_input =
+      std::filesystem::absolute(input).lexically_normal().generic_u8string();
+  EXPECT_EQ(ReadStringAttribute(metadata.Get(), "source_input_identity")
+                .find("path=" + normalized_input + ";content_identity="),
+            0U);
 }
 
 struct AppRun {
-    int exitCode;
-    std::string standardError;
+  int exit_code;
+  std::string standard_error;
 };
 
-AppRun runApplication(const std::vector<std::string>& arguments) {
-    testing::internal::CaptureStderr();
-    try {
-        const int exitCode = fesa::FesaApplication{}.run(arguments);
-        return {exitCode, testing::internal::GetCapturedStderr()};
-    } catch (...) {
-        (void)testing::internal::GetCapturedStderr();
-        throw;
-    }
+AppRun RunApplication(const std::vector<std::string>& arguments) {
+  testing::internal::CaptureStderr();
+  try {
+    const int exit_code = fesa::FesaApplication{}.Run(arguments);
+    return {exit_code, testing::internal::GetCapturedStderr()};
+  } catch (...) {
+    (void)testing::internal::GetCapturedStderr();
+    throw;
+  }
 }
 
-void expectDiagnosticFieldOrder(const std::string& text) {
-    ASSERT_FALSE(text.empty());
-    std::size_t cursor = 0U;
-    for (const char* field : {
-             "severity", "code", "file", "line", "keyword",
-             "entity_identity", "message"}) {
-        const auto position = text.find(field, cursor);
-        ASSERT_NE(position, std::string::npos)
-            << "Missing or out-of-order diagnostic field: " << field
-            << "\nstderr:\n" << text;
-        cursor = position + std::string{field}.size();
-    }
+void ExpectDiagnosticFieldOrder(const std::string& text) {
+  ASSERT_FALSE(text.empty());
+  std::size_t cursor = 0U;
+  for (const char* field : {"severity", "code", "file", "line", "keyword",
+                            "entity_identity", "message"}) {
+    const auto position = text.find(field, cursor);
+    ASSERT_NE(position, std::string::npos)
+        << "Missing or out-of-order diagnostic field: " << field
+        << "\nstderr:\n"
+        << text;
+    cursor = position + std::string{field}.size();
+  }
 }
 
-std::vector<std::string> explicitOutputArguments(
-    const std::filesystem::path& input,
-    const std::filesystem::path& output) {
-    // FesaApplication receives argv[0]-excluded operands and options.
-    return {input.string(), "--output", output.string()};
+std::vector<std::string> ExplicitOutputArguments(
+    const std::filesystem::path& input, const std::filesystem::path& output) {
+  // FesaApplication receives argv[0]-excluded operands and options.
+  return {input.string(), "--output", output.string()};
 }
 
-} // namespace
+}  // namespace
 
 TEST(LinearStaticCli, DefaultAndExplicitOutputProduceFesaHdf5) {
-    TempDirectory directory{"paths"};
-    const auto input = directory.path() / "model.inp";
-    writeText(input, axialDeck(true, false, false));
+  TempDirectory directory{"paths"};
+  const auto input = directory.Path() / "model.inp";
+  WriteText(input, AxialDeck(true, false, false));
 
-    const auto defaultOutput = directory.path() / "results.h5";
-    {
-        CurrentDirectoryGuard currentDirectory{directory.path()};
-        const auto result = runApplication({input.string()});
-        ASSERT_EQ(result.exitCode, 0) << result.standardError;
-    }
-    expectFesaHdf5Identity(defaultOutput, input);
+  const auto default_output = directory.Path() / "results.h5";
+  {
+    CurrentDirectoryGuard current_directory{directory.Path()};
+    const auto result = RunApplication({input.string()});
+    ASSERT_EQ(result.exit_code, 0) << result.standard_error;
+  }
+  ExpectFesaHdf5Identity(default_output, input);
 
-    const auto explicitOutput = directory.path() / "named-output.h5";
-    const auto result = runApplication(
-        explicitOutputArguments(input, explicitOutput));
-    ASSERT_EQ(result.exitCode, 0) << result.standardError;
-    expectFesaHdf5Identity(explicitOutput, input);
+  const auto explicit_output = directory.Path() / "named-output.h5";
+  const auto result =
+      RunApplication(ExplicitOutputArguments(input, explicit_output));
+  ASSERT_EQ(result.exit_code, 0) << result.standard_error;
+  ExpectFesaHdf5Identity(explicit_output, input);
 }
 
 TEST(LinearStaticCli, ReturnsEveryExactExitCodeAndOrderedDiagnostic) {
-    TempDirectory directory{"exit-codes"};
-    const auto validInput = directory.path() / "valid.inp";
-    const auto modelInput = directory.path() / "invalid-model.inp";
-    const auto solverInput = directory.path() / "singular.inp";
-    writeText(validInput, axialDeck(true, false, false));
-    writeText(modelInput, axialDeck(true, true, false));
-    writeText(solverInput, axialDeck(false, false, false));
+  TempDirectory directory{"exit-codes"};
+  const auto valid_input = directory.Path() / "valid.inp";
+  const auto model_input = directory.Path() / "invalid-model.inp";
+  const auto solver_input = directory.Path() / "singular.inp";
+  WriteText(valid_input, AxialDeck(true, false, false));
+  WriteText(model_input, AxialDeck(true, true, false));
+  WriteText(solver_input, AxialDeck(false, false, false));
 
-    const auto success = runApplication(explicitOutputArguments(
-        validInput, directory.path() / "success.h5"));
-    const auto usage = runApplication({});
-    const auto missingInput = directory.path() / "missing.inp";
-    const auto input = runApplication({missingInput.string()});
-    const auto repeatedOutput = runApplication(
-        {missingInput.string(), "--output", "--output"});
-    const auto unknownOutputOption = runApplication(
-        {missingInput.string(), "--output", "--bogus"});
-    const auto model = runApplication(explicitOutputArguments(
-        modelInput, directory.path() / "model-failure.h5"));
-    const auto solver = runApplication(explicitOutputArguments(
-        solverInput, directory.path() / "solver-failure.h5"));
-    const auto output = runApplication(explicitOutputArguments(
-        validInput,
-        directory.path() / "nonexistent-parent" / "results.h5"));
+  const auto success = RunApplication(
+      ExplicitOutputArguments(valid_input, directory.Path() / "success.h5"));
+  const auto usage = RunApplication({});
+  const auto missing_input = directory.Path() / "missing.inp";
+  const auto input = RunApplication({missing_input.string()});
+  const auto repeated_output =
+      RunApplication({missing_input.string(), "--output", "--output"});
+  const auto unknown_output_option =
+      RunApplication({missing_input.string(), "--output", "--bogus"});
+  const auto model = RunApplication(ExplicitOutputArguments(
+      model_input, directory.Path() / "model-failure.h5"));
+  const auto solver = RunApplication(ExplicitOutputArguments(
+      solver_input, directory.Path() / "solver-failure.h5"));
+  const auto output = RunApplication(ExplicitOutputArguments(
+      valid_input, directory.Path() / "nonexistent-parent" / "results.h5"));
 
-    EXPECT_EQ(success.exitCode, 0) << success.standardError;
-    EXPECT_EQ(usage.exitCode, 2);
-    EXPECT_EQ(input.exitCode, 3);
-    EXPECT_EQ(model.exitCode, 4);
-    EXPECT_EQ(solver.exitCode, 5);
-    EXPECT_EQ(output.exitCode, 6);
+  EXPECT_EQ(success.exit_code, 0) << success.standard_error;
+  EXPECT_EQ(usage.exit_code, 2);
+  EXPECT_EQ(input.exit_code, 3);
+  EXPECT_EQ(model.exit_code, 4);
+  EXPECT_EQ(solver.exit_code, 5);
+  EXPECT_EQ(output.exit_code, 6);
 
-    expectDiagnosticFieldOrder(usage.standardError);
-    expectDiagnosticFieldOrder(input.standardError);
-    expectDiagnosticFieldOrder(model.standardError);
-    expectDiagnosticFieldOrder(solver.standardError);
-    expectDiagnosticFieldOrder(output.standardError);
-    EXPECT_EQ(repeatedOutput.exitCode, 2);
-    expectDiagnosticFieldOrder(repeatedOutput.standardError);
-    EXPECT_NE(repeatedOutput.standardError.find("code=cli-usage"),
-              std::string::npos);
-    EXPECT_EQ(unknownOutputOption.exitCode, 2);
-    expectDiagnosticFieldOrder(unknownOutputOption.standardError);
-    EXPECT_NE(unknownOutputOption.standardError.find("code=cli-usage"),
-              std::string::npos);
+  ExpectDiagnosticFieldOrder(usage.standard_error);
+  ExpectDiagnosticFieldOrder(input.standard_error);
+  ExpectDiagnosticFieldOrder(model.standard_error);
+  ExpectDiagnosticFieldOrder(solver.standard_error);
+  ExpectDiagnosticFieldOrder(output.standard_error);
+  EXPECT_EQ(repeated_output.exit_code, 2);
+  ExpectDiagnosticFieldOrder(repeated_output.standard_error);
+  EXPECT_NE(repeated_output.standard_error.find("code=cli-usage"),
+            std::string::npos);
+  EXPECT_EQ(unknown_output_option.exit_code, 2);
+  ExpectDiagnosticFieldOrder(unknown_output_option.standard_error);
+  EXPECT_NE(unknown_output_option.standard_error.find("code=cli-usage"),
+            std::string::npos);
 }
 
 TEST(LinearStaticCli, OutputRequestsDoNotFilterMandatoryResults) {
-    TempDirectory directory{"output-requests"};
-    const auto plainInput = directory.path() / "plain.inp";
-    const auto requestedInput = directory.path() / "requested.inp";
-    const auto plainOutput = directory.path() / "plain.h5";
-    const auto requestedOutput = directory.path() / "requested.h5";
-    writeText(plainInput, axialDeck(true, false, false));
-    writeText(requestedInput, axialDeck(true, false, true));
+  TempDirectory directory{"output-requests"};
+  const auto plain_input = directory.Path() / "plain.inp";
+  const auto requested_input = directory.Path() / "requested.inp";
+  const auto plain_output = directory.Path() / "plain.h5";
+  const auto requested_output = directory.Path() / "requested.h5";
+  WriteText(plain_input, AxialDeck(true, false, false));
+  WriteText(requested_input, AxialDeck(true, false, true));
 
-    const auto plain = runApplication(
-        explicitOutputArguments(plainInput, plainOutput));
-    const auto requested = runApplication(
-        explicitOutputArguments(requestedInput, requestedOutput));
-    ASSERT_EQ(plain.exitCode, 0) << plain.standardError;
-    ASSERT_EQ(requested.exitCode, 0) << requested.standardError;
+  const auto plain =
+      RunApplication(ExplicitOutputArguments(plain_input, plain_output));
+  const auto requested = RunApplication(
+      ExplicitOutputArguments(requested_input, requested_output));
+  ASSERT_EQ(plain.exit_code, 0) << plain.standard_error;
+  ASSERT_EQ(requested.exit_code, 0) << requested.standard_error;
 
-    const auto plainFile = openFile(plainOutput);
-    const auto requestedFile = openFile(requestedOutput);
-    expectMandatoryInventory(plainFile.get());
-    expectMandatoryInventory(requestedFile.get());
+  const auto plain_file = OpenFile(plain_output);
+  const auto requested_file = OpenFile(requested_output);
+  ExpectMandatoryInventory(plain_file.Get());
+  ExpectMandatoryInventory(requested_file.Get());
 
-    for (const char* suffix : {
-             "/nodal/displacement",
-             "/nodal/reaction",
-             "/element/end_force_local",
-             "/element/section_resultant",
-             "/element/generalized_strain",
-             "/element/generalized_resultant"}) {
-        const std::string path = std::string{kStepRoot} + suffix;
-        EXPECT_EQ(
-            readDoubleDataset(requestedFile.get(), path),
-            readDoubleDataset(plainFile.get(), path))
-            << path;
-    }
-    EXPECT_EQ(datasetDimensions(plainFile.get(), "/diagnostics"),
-              std::vector<hsize_t>({0U}));
-    const auto requestedDiagnostics =
-        datasetDimensions(requestedFile.get(), "/diagnostics");
-    ASSERT_EQ(requestedDiagnostics.size(), 1U);
-    EXPECT_GT(requestedDiagnostics[0U], 0U);
+  for (const char* suffix :
+       {"/nodal/displacement", "/nodal/reaction", "/element/end_force_local",
+        "/element/section_resultant", "/element/generalized_strain",
+        "/element/generalized_resultant"}) {
+    const std::string path = std::string{kStepRoot} + suffix;
+    EXPECT_EQ(ReadDoubleDataset(requested_file.Get(), path),
+              ReadDoubleDataset(plain_file.Get(), path))
+        << path;
+  }
+  EXPECT_EQ(DatasetDimensions(plain_file.Get(), "/diagnostics"),
+            std::vector<hsize_t>({0U}));
+  const auto requested_diagnostics =
+      DatasetDimensions(requested_file.Get(), "/diagnostics");
+  ASSERT_EQ(requested_diagnostics.size(), 1U);
+  EXPECT_GT(requested_diagnostics[0U], 0U);
 }
 
 // MITC4-FLOW-001: shell input uses the unchanged application route and syntax.
 TEST(Mitc4ShellCli, WritesShellHdf5ThroughTheExistingApplicationRoute) {
-    TempDirectory directory{"shell-route"};
-    const auto input = directory.path() / "shell.inp";
-    const auto output = directory.path() / "shell-results.h5";
-    writeText(input, allConstrainedShellDeck());
+  TempDirectory directory{"shell-route"};
+  const auto input = directory.Path() / "shell.inp";
+  const auto output = directory.Path() / "shell-results.h5";
+  WriteText(input, AllConstrainedShellDeck());
 
-    const auto result = runApplication(explicitOutputArguments(input, output));
-    ASSERT_EQ(result.exitCode, 0) << result.standardError;
-    expectShellHdf5Identity(output, input);
+  const auto result = RunApplication(ExplicitOutputArguments(input, output));
+  ASSERT_EQ(result.exit_code, 0) << result.standard_error;
+  ExpectShellHdf5Identity(output, input);
 }

tests/reference/b33_reference_comparison_test.cpp

@@ -1,10 +1,5 @@
-#include "reference_comparison.hpp"
-
-#include "fesa/app/fesa_application.hpp"
-
-#include <hdf5.h>
-
 #include <gtest/gtest.h>
+#include <hdf5.h>
 
 #include <algorithm>
 #include <array>
@@ -17,6 +12,9 @@
 #include <string>
 #include <vector>
 
+#include "fesa/app/fesa_application.h"
+#include "reference_comparison.h"
+
 #ifndef FESA_TEST_SOURCE_DIR
 #error FESA_TEST_SOURCE_DIR must identify the repository root.
 #endif
@@ -27,250 +25,224 @@
 
 namespace {
 
-constexpr const char* kStressPath =
-    "/steps/Step-1/frames/0/element/stress_s11";
+constexpr const char* kStressPath = "/steps/Step-1/frames/0/element/stress_s11";
 constexpr std::size_t kExpectedRowCount = 176U;
 constexpr std::size_t kExpectedMetricCount = 16U;
 
 class Hdf5Handle {
-public:
-    using Closer = herr_t (*)(hid_t);
+ public:
+  using Closer = herr_t (*)(hid_t);
 
-    Hdf5Handle(const hid_t value, Closer closer)
-        : value_{value}, closer_{closer} {}
-    Hdf5Handle(const Hdf5Handle&) = delete;
-    Hdf5Handle& operator=(const Hdf5Handle&) = delete;
-    ~Hdf5Handle() {
-        if (value_ >= 0 && closer_ != nullptr) {
-            (void)closer_(value_);
-        }
+  Hdf5Handle(const hid_t value, Closer closer)
+      : value_{value}, closer_{closer} {}
+  Hdf5Handle(const Hdf5Handle&) = delete;
+  Hdf5Handle& operator=(const Hdf5Handle&) = delete;
+  ~Hdf5Handle() {
+    if (value_ >= 0 && closer_ != nullptr) {
+      (void)closer_(value_);
     }
+  }
 
-    hid_t get() const noexcept { return value_; }
+  hid_t Get() const noexcept { return value_; }
 
-private:
-    hid_t value_;
-    Closer closer_;
+ private:
+  hid_t value_;
+  Closer closer_;
 };
 
 struct ReferenceSnapshotEntry {
-    std::filesystem::path relativePath;
-    bool isDirectory;
-    std::string bytes;
-    std::filesystem::file_time_type lastWriteTime;
+  std::filesystem::path relative_path;
+  bool is_directory;
+  std::string bytes;
+  std::filesystem::file_time_type last_write_time;
 };
 
-std::string readBytes(const std::filesystem::path& path) {
-    std::ifstream stream{path, std::ios::binary};
-    if (!stream) {
-        throw std::runtime_error{"Unable to read reference evidence: " +
-                                 path.string()};
-    }
-    return {std::istreambuf_iterator<char>{stream},
-            std::istreambuf_iterator<char>{}};
+std::string ReadBytes(const std::filesystem::path& path) {
+  std::ifstream stream{path, std::ios::binary};
+  if (!stream) {
+    throw std::runtime_error{"Unable to read reference evidence: " +
+                             path.string()};
+  }
+  return {std::istreambuf_iterator<char>{stream},
+          std::istreambuf_iterator<char>{}};
 }
 
-std::vector<ReferenceSnapshotEntry> snapshotTree(
+std::vector<ReferenceSnapshotEntry> SnapshotTree(
     const std::filesystem::path& root) {
-    std::vector<ReferenceSnapshotEntry> entries;
-    for (const auto& entry : std::filesystem::recursive_directory_iterator{root}) {
-        const bool isDirectory = entry.is_directory();
-        if (!isDirectory && !entry.is_regular_file()) {
-            throw std::runtime_error{"Unexpected reference-tree entry type."};
-        }
-        entries.push_back({
-            std::filesystem::relative(entry.path(), root),
-            isDirectory,
-            isDirectory ? std::string{} : readBytes(entry.path()),
-            entry.last_write_time()});
+  std::vector<ReferenceSnapshotEntry> entries;
+  for (const auto& entry :
+       std::filesystem::recursive_directory_iterator{root}) {
+    const bool is_directory = entry.is_directory();
+    if (!is_directory && !entry.is_regular_file()) {
+      throw std::runtime_error{"Unexpected reference-tree entry type."};
     }
-    std::sort(
-        entries.begin(),
-        entries.end(),
-        [](const ReferenceSnapshotEntry& left,
-           const ReferenceSnapshotEntry& right) {
-            return left.relativePath.generic_string() <
-                   right.relativePath.generic_string();
-        });
-    return entries;
+    entries.push_back({std::filesystem::relative(entry.path(), root),
+                       is_directory,
+                       is_directory ? std::string{} : ReadBytes(entry.path()),
+                       entry.last_write_time()});
+  }
+  std::sort(entries.begin(), entries.end(),
+            [](const ReferenceSnapshotEntry& left,
+               const ReferenceSnapshotEntry& right) {
+              return left.relative_path.generic_string() <
+                     right.relative_path.generic_string();
+            });
+  return entries;
 }
 
-void expectTreeUnchanged(
-    const std::vector<ReferenceSnapshotEntry>& before,
-    const std::vector<ReferenceSnapshotEntry>& after) {
-    ASSERT_EQ(after.size(), before.size());
-    for (std::size_t index = 0U; index < before.size(); ++index) {
-        EXPECT_EQ(after[index].relativePath, before[index].relativePath);
-        EXPECT_EQ(after[index].isDirectory, before[index].isDirectory);
-        EXPECT_EQ(after[index].bytes, before[index].bytes)
-            << before[index].relativePath.string();
-        EXPECT_EQ(after[index].lastWriteTime, before[index].lastWriteTime)
-            << before[index].relativePath.string();
-    }
+void ExpectTreeUnchanged(const std::vector<ReferenceSnapshotEntry>& before,
+                         const std::vector<ReferenceSnapshotEntry>& after) {
+  ASSERT_EQ(after.size(), before.size());
+  for (std::size_t index = 0U; index < before.size(); ++index) {
+    EXPECT_EQ(after[index].relative_path, before[index].relative_path);
+    EXPECT_EQ(after[index].is_directory, before[index].is_directory);
+    EXPECT_EQ(after[index].bytes, before[index].bytes)
+        << before[index].relative_path.string();
+    EXPECT_EQ(after[index].last_write_time, before[index].last_write_time)
+        << before[index].relative_path.string();
+  }
 }
 
-double norm(const std::array<double, 3>& value) {
-    return std::sqrt(
-        value[0U] * value[0U] + value[1U] * value[1U] +
-        value[2U] * value[2U]);
+double Norm(const std::array<double, 3>& value) {
+  return std::sqrt(value[0U] * value[0U] + value[1U] * value[1U] +
+                   value[2U] * value[2U]);
 }
 
-std::array<double, 3> sum(
-    const std::array<double, 3>& left,
-    const std::array<double, 3>& right) {
-    return {
-        left[0U] + right[0U],
-        left[1U] + right[1U],
-        left[2U] + right[2U]};
+std::array<double, 3> Sum(const std::array<double, 3>& left,
+                          const std::array<double, 3>& right) {
+  return {left[0U] + right[0U], left[1U] + right[1U], left[2U] + right[2U]};
 }
 
-std::size_t stressRowCount(const std::filesystem::path& results) {
-    const hid_t fileId =
-        H5Fopen(results.string().c_str(), H5F_ACC_RDONLY, H5P_DEFAULT);
-    if (fileId < 0) {
-        throw std::runtime_error{"Unable to open authoritative HDF5 output."};
-    }
-    const Hdf5Handle file{fileId, H5Fclose};
-    if (H5Lexists(file.get(), kStressPath, H5P_DEFAULT) <= 0) {
-        throw std::runtime_error{"Mandatory stress_s11 dataset is missing."};
-    }
-    const hid_t datasetId = H5Dopen2(file.get(), kStressPath, H5P_DEFAULT);
-    if (datasetId < 0) {
-        throw std::runtime_error{"Unable to open mandatory stress_s11 dataset."};
-    }
-    const Hdf5Handle dataset{datasetId, H5Dclose};
-    const hid_t spaceId = H5Dget_space(dataset.get());
-    if (spaceId < 0) {
-        throw std::runtime_error{"Unable to inspect stress_s11 dataspace."};
-    }
-    const Hdf5Handle space{spaceId, H5Sclose};
-    if (H5Sget_simple_extent_ndims(space.get()) != 1) {
-        throw std::runtime_error{"stress_s11 must be a flat row dataset."};
-    }
-    hsize_t count = 0U;
-    if (H5Sget_simple_extent_dims(space.get(), &count, nullptr) < 0) {
-        throw std::runtime_error{"Unable to read stress_s11 extent."};
-    }
-    return static_cast<std::size_t>(count);
+std::size_t StressRowCount(const std::filesystem::path& results) {
+  const hid_t file_id =
+      H5Fopen(results.string().c_str(), H5F_ACC_RDONLY, H5P_DEFAULT);
+  if (file_id < 0) {
+    throw std::runtime_error{"Unable to open authoritative HDF5 output."};
+  }
+  const Hdf5Handle file{file_id, H5Fclose};
+  if (H5Lexists(file.Get(), kStressPath, H5P_DEFAULT) <= 0) {
+    throw std::runtime_error{"Mandatory stress_s11 dataset is missing."};
+  }
+  const hid_t dataset_id = H5Dopen2(file.Get(), kStressPath, H5P_DEFAULT);
+  if (dataset_id < 0) {
+    throw std::runtime_error{"Unable to open mandatory stress_s11 dataset."};
+  }
+  const Hdf5Handle dataset{dataset_id, H5Dclose};
+  const hid_t space_id = H5Dget_space(dataset.Get());
+  if (space_id < 0) {
+    throw std::runtime_error{"Unable to inspect stress_s11 dataspace."};
+  }
+  const Hdf5Handle space{space_id, H5Sclose};
+  if (H5Sget_simple_extent_ndims(space.Get()) != 1) {
+    throw std::runtime_error{"stress_s11 must be a flat row dataset."};
+  }
+  hsize_t count = 0U;
+  if (H5Sget_simple_extent_dims(space.Get(), &count, nullptr) < 0) {
+    throw std::runtime_error{"Unable to read stress_s11 extent."};
+  }
+  return static_cast<std::size_t>(count);
 }
 
-} // namespace
+}  // namespace
 
-TEST(B33ReferenceComparison,
-     GeneratesAuthoritativeHdf5AndComparisonEvidence) {
-    const std::filesystem::path sourceRoot{FESA_TEST_SOURCE_DIR};
-    const std::filesystem::path binaryRoot{FESA_TEST_BINARY_DIR};
-    const auto referenceDirectory =
-        sourceRoot / "reference" / "cantilever beam";
-    const auto input = referenceDirectory / "cantilever beam.inp";
-    const auto outputDirectory =
-        binaryRoot / "reference" / "cantilever-beam-b33";
-    const auto results = outputDirectory / "results.h5";
-    const auto comparison = outputDirectory / "comparison.json";
+TEST(B33ReferenceComparison, GeneratesAuthoritativeHdf5AndComparisonEvidence) {
+  const std::filesystem::path source_root{FESA_TEST_SOURCE_DIR};
+  const std::filesystem::path binary_root{FESA_TEST_BINARY_DIR};
+  const auto reference_directory =
+      source_root / "reference" / "cantilever beam";
+  const auto input = reference_directory / "cantilever beam.inp";
+  const auto output_directory =
+      binary_root / "reference" / "cantilever-beam-b33";
+  const auto results = output_directory / "results.h5";
+  const auto comparison = output_directory / "comparison.json";
 
-    // Only the exact build-local evidence directory is reset; the approved
-    // reference tree is snapshotted and subsequently opened read-only.
-    std::error_code error;
-    std::filesystem::remove_all(outputDirectory, error);
-    error.clear();
-    ASSERT_TRUE(std::filesystem::create_directories(outputDirectory, error));
-    ASSERT_FALSE(error);
-    const auto referenceBefore = snapshotTree(referenceDirectory);
-    ASSERT_EQ(referenceBefore.size(), 4U);
-    EXPECT_EQ(
-        referenceBefore[0U].relativePath,
-        std::filesystem::path{"cantilever beam displacements.csv"});
-    EXPECT_EQ(
-        referenceBefore[1U].relativePath,
-        std::filesystem::path{"cantilever beam elemental forces.csv"});
-    EXPECT_EQ(
-        referenceBefore[2U].relativePath,
-        std::filesystem::path{"cantilever beam reactions.csv"});
-    EXPECT_EQ(
-        referenceBefore[3U].relativePath,
-        std::filesystem::path{"cantilever beam.inp"});
+  // Only the exact build-local evidence directory is reset; the approved
+  // reference tree is snapshotted and subsequently opened read-only.
+  std::error_code error;
+  std::filesystem::remove_all(output_directory, error);
+  error.clear();
+  ASSERT_TRUE(std::filesystem::create_directories(output_directory, error));
+  ASSERT_FALSE(error);
+  const auto reference_before = SnapshotTree(reference_directory);
+  ASSERT_EQ(reference_before.size(), 4U);
+  EXPECT_EQ(reference_before[0U].relative_path,
+            std::filesystem::path{"cantilever beam displacements.csv"});
+  EXPECT_EQ(reference_before[1U].relative_path,
+            std::filesystem::path{"cantilever beam elemental forces.csv"});
+  EXPECT_EQ(reference_before[2U].relative_path,
+            std::filesystem::path{"cantilever beam reactions.csv"});
+  EXPECT_EQ(reference_before[3U].relative_path,
+            std::filesystem::path{"cantilever beam.inp"});
 
-    fesa::FesaApplication application;
-    // FesaApplication receives application operands/options; main strips argv[0].
-    ASSERT_EQ(
-        application.run(
-            {input.string(), "--output", results.string()}),
-        0);
-    ASSERT_TRUE(std::filesystem::is_regular_file(results));
-    ASSERT_GT(H5Fis_hdf5(results.string().c_str()), 0);
-    EXPECT_GT(stressRowCount(results), 0U);
+  fesa::FesaApplication application;
+  // FesaApplication receives application operands/options; main strips argv[0].
+  ASSERT_EQ(application.Run({input.string(), "--output", results.string()}), 0);
+  ASSERT_TRUE(std::filesystem::is_regular_file(results));
+  ASSERT_GT(H5Fis_hdf5(results.string().c_str()), 0);
+  EXPECT_GT(StressRowCount(results), 0U);
 
-    auto comparisonResult = fesa::test::ReferenceComparison::compare(
-        results, referenceDirectory);
-    ASSERT_TRUE(comparisonResult.HasValue());
-    const auto& report = comparisonResult.Value();
-    ASSERT_TRUE(report.passed);
-    ASSERT_EQ(report.rows.size(), kExpectedRowCount);
-    ASSERT_EQ(report.metrics.size(), kExpectedMetricCount);
-    EXPECT_TRUE(std::all_of(
-        report.rows.begin(),
-        report.rows.end(),
-        [](const fesa::test::RowDecision& row) {
-            return row.passed && std::isfinite(row.absoluteError) &&
-                   std::isfinite(row.tolerance) && row.tolerance > 0.0 &&
-                   row.fesa.modelId == "cantilever-beam-b33" &&
-                   row.reference.modelId == "cantilever-beam-b33" &&
-                   row.fesa.stepName == "Step-1" &&
-                   row.reference.stepName == "Step-1" &&
-                   row.fesa.frameIndex == 0U &&
-                   row.reference.frameIndex == 0U &&
-                   row.fesa.instanceName == "PART-1_1-1" &&
-                   row.reference.instanceName == "PART-1_1-1" &&
-                   !row.fesa.hdf5DatasetPath.empty();
-        }));
-    EXPECT_TRUE(std::all_of(
-        report.metrics.begin(),
-        report.metrics.end(),
-        [](const fesa::test::ComponentMetrics& metric) {
-            return std::isfinite(metric.referenceScale) &&
-                   std::isfinite(metric.maximumAbsoluteError) &&
-                   std::isfinite(metric.maximumNormalizedError) &&
-                   std::isfinite(metric.rmsError) &&
-                   std::isfinite(metric.normError) &&
-                   metric.maximumNormalizedError <= 1.0;
-        }));
+  auto comparison_result =
+      fesa::test::ReferenceComparison::Compare(results, reference_directory);
+  ASSERT_TRUE(comparison_result.HasValue());
+  const auto& report = comparison_result.Value();
+  ASSERT_TRUE(report.passed);
+  ASSERT_EQ(report.rows.size(), kExpectedRowCount);
+  ASSERT_EQ(report.metrics.size(), kExpectedMetricCount);
+  EXPECT_TRUE(std::all_of(
+      report.rows.begin(), report.rows.end(),
+      [](const fesa::test::RowDecision& row) {
+        return row.passed && std::isfinite(row.absolute_error) &&
+               std::isfinite(row.tolerance) && row.tolerance > 0.0 &&
+               row.fesa.model_id == "cantilever-beam-b33" &&
+               row.reference.model_id == "cantilever-beam-b33" &&
+               row.fesa.step_name == "Step-1" &&
+               row.reference.step_name == "Step-1" &&
+               row.fesa.frame_index == 0U && row.reference.frame_index == 0U &&
+               row.fesa.instance_name == "PART-1_1-1" &&
+               row.reference.instance_name == "PART-1_1-1" &&
+               !row.fesa.hdf5_dataset_path.empty();
+      }));
+  EXPECT_TRUE(
+      std::all_of(report.metrics.begin(), report.metrics.end(),
+                  [](const fesa::test::ComponentMetrics& metric) {
+                    return std::isfinite(metric.reference_scale) &&
+                           std::isfinite(metric.maximum_absolute_error) &&
+                           std::isfinite(metric.maximum_normalized_error) &&
+                           std::isfinite(metric.rms_error) &&
+                           std::isfinite(metric.norm_error) &&
+                           metric.maximum_normalized_error <= 1.0;
+                  }));
 
-    EXPECT_FALSE(report.stressComparisonApplicable);
-    EXPECT_NE(report.stressComparisonReason.find("N/A"), std::string::npos);
-    EXPECT_NE(report.stressComparisonReason.find("HDF5"), std::string::npos);
-    EXPECT_TRUE(report.physicsEvidence.endpointConsistencyPassed);
-    EXPECT_TRUE(std::isfinite(report.physicsEvidence.freeResidualNorm));
-    EXPECT_LE(report.physicsEvidence.freeResidualNorm, 1.0e-3);
-    EXPECT_LE(
-        norm(sum(
-            report.physicsEvidence.appliedForce,
-            report.physicsEvidence.reactionForce)),
-        1.0e-3);
-    EXPECT_LE(
-        norm(sum(
-            report.physicsEvidence.appliedMomentAboutOrigin,
-            report.physicsEvidence.reactionMomentAboutOrigin)),
-        1.0e-2);
+  EXPECT_FALSE(report.stress_comparison_applicable);
+  EXPECT_NE(report.stress_comparison_reason.find("N/A"), std::string::npos);
+  EXPECT_NE(report.stress_comparison_reason.find("HDF5"), std::string::npos);
+  EXPECT_TRUE(report.physics_evidence.endpoint_consistency_passed);
+  EXPECT_TRUE(std::isfinite(report.physics_evidence.free_residual_norm));
+  EXPECT_LE(report.physics_evidence.free_residual_norm, 1.0e-3);
+  EXPECT_LE(Norm(Sum(report.physics_evidence.applied_force,
+                     report.physics_evidence.reaction_force)),
+            1.0e-3);
+  EXPECT_LE(Norm(Sum(report.physics_evidence.applied_moment_about_origin,
+                     report.physics_evidence.reaction_moment_about_origin)),
+            1.0e-2);
 
-    ASSERT_TRUE(
-        fesa::test::ReferenceComparison::writeDeterministicJson(
-            report, comparison)
-            .IsOk());
-    ASSERT_TRUE(std::filesystem::is_regular_file(comparison));
-    const std::string json = readBytes(comparison);
-    EXPECT_NE(json.find("\"stress_comparison_applicable\":false"),
-              std::string::npos);
-    EXPECT_NE(json.find("\"physics_evidence\""), std::string::npos);
+  ASSERT_TRUE(fesa::test::ReferenceComparison::WriteDeterministicJson(
+                  report, comparison)
+                  .IsOk());
+  ASSERT_TRUE(std::filesystem::is_regular_file(comparison));
+  const std::string json = ReadBytes(comparison);
+  EXPECT_NE(json.find("\"stress_comparison_applicable\":false"),
+            std::string::npos);
+  EXPECT_NE(json.find("\"physics_evidence\""), std::string::npos);
 
-    std::vector<std::string> generatedNames;
-    for (const auto& entry :
-         std::filesystem::directory_iterator{outputDirectory}) {
-        generatedNames.push_back(entry.path().filename().string());
-    }
-    std::sort(generatedNames.begin(), generatedNames.end());
-    EXPECT_EQ(
-        generatedNames,
-        (std::vector<std::string>{"comparison.json", "results.h5"}));
+  std::vector<std::string> generated_names;
+  for (const auto& entry :
+       std::filesystem::directory_iterator{output_directory}) {
+    generated_names.push_back(entry.path().filename().string());
+  }
+  std::sort(generated_names.begin(), generated_names.end());
+  EXPECT_EQ(generated_names,
+            (std::vector<std::string>{"comparison.json", "results.h5"}));
 
-    expectTreeUnchanged(referenceBefore, snapshotTree(referenceDirectory));
+  ExpectTreeUnchanged(reference_before, SnapshotTree(reference_directory));
 }

tests/reference/mitc4_reference_cases_test.cpp

@@ -1,7 +1,3 @@
-#include "mitc4_reference_comparison.hpp"
-
-#include "fesa/app/fesa_application.hpp"
-
 #include <gtest/gtest.h>
 
 #include <algorithm>
@@ -14,6 +10,9 @@
 #include <utility>
 #include <vector>
 
+#include "fesa/app/fesa_application.h"
+#include "mitc4_reference_comparison.h"
+
 #ifndef FESA_TEST_SOURCE_DIR
 #error FESA_TEST_SOURCE_DIR must identify the repository root.
 #endif
@@ -30,150 +29,139 @@ constexpr const char* kIntegrationRule =
 constexpr std::size_t kNodeCount = 49U;
 constexpr std::size_t kComponentCount = 6U;
 
-std::string readBytes(const std::filesystem::path& path) {
-    std::ifstream stream{path, std::ios::binary};
-    if (!stream) {
-        throw std::runtime_error{"Unable to read declared reference artifact."};
-    }
-    return {std::istreambuf_iterator<char>{stream},
-            std::istreambuf_iterator<char>{}};
+std::string ReadBytes(const std::filesystem::path& path) {
+  std::ifstream stream{path, std::ios::binary};
+  if (!stream) {
+    throw std::runtime_error{"Unable to read declared reference artifact."};
+  }
+  return {std::istreambuf_iterator<char>{stream},
+          std::istreambuf_iterator<char>{}};
 }
 
 struct ArtifactSnapshot {
-    std::string bytes;
-    std::filesystem::file_time_type lastWriteTime;
+  std::string bytes;
+  std::filesystem::file_time_type last_write_time;
 };
 
-ArtifactSnapshot snapshot(const std::filesystem::path& path) {
-    return {readBytes(path), std::filesystem::last_write_time(path)};
+ArtifactSnapshot Snapshot(const std::filesystem::path& path) {
+  return {ReadBytes(path), std::filesystem::last_write_time(path)};
 }
 
-void expectUnchanged(
-    const std::filesystem::path& path, const ArtifactSnapshot& before) {
-    EXPECT_EQ(readBytes(path), before.bytes) << path.string();
-    EXPECT_EQ(std::filesystem::last_write_time(path), before.lastWriteTime)
-        << path.string();
+void ExpectUnchanged(const std::filesystem::path& path,
+                     const ArtifactSnapshot& before) {
+  EXPECT_EQ(ReadBytes(path), before.bytes) << path.string();
+  EXPECT_EQ(std::filesystem::last_write_time(path), before.last_write_time)
+      << path.string();
 }
 
 struct CaseEvidence {
-    fesa::test::Mitc4ComparisonReport report;
-    std::filesystem::path comparisonJson;
+  fesa::test::Mitc4ComparisonReport report;
+  std::filesystem::path comparison_json;
 };
 
-CaseEvidence runCase(
-    const std::string& caseId,
-    const std::string& sourceElementType,
-    const std::filesystem::path& referenceDirectory,
-    const std::filesystem::path& input,
-    const std::filesystem::path& csv,
-    const std::string& outputName) {
-    const auto inputBefore = snapshot(input);
-    const auto csvBefore = snapshot(csv);
-    const std::filesystem::path outputDirectory =
-        std::filesystem::path{FESA_TEST_BINARY_DIR} / "reference" / outputName;
-    std::error_code error;
-    std::filesystem::remove_all(outputDirectory, error);
-    error.clear();
-    if (!std::filesystem::create_directories(outputDirectory, error) || error) {
-        throw std::runtime_error{"Unable to create MITC4 evidence directory."};
-    }
-    const auto results = outputDirectory / "results.h5";
-    const auto comparison = outputDirectory / "comparison.json";
+CaseEvidence RunCase(const std::string& case_id,
+                     const std::string& source_element_type,
+                     const std::filesystem::path& reference_directory,
+                     const std::filesystem::path& input,
+                     const std::filesystem::path& csv,
+                     const std::string& output_name) {
+  const auto input_before = Snapshot(input);
+  const auto csv_before = Snapshot(csv);
+  const std::filesystem::path output_directory =
+      std::filesystem::path{FESA_TEST_BINARY_DIR} / "reference" / output_name;
+  std::error_code error;
+  std::filesystem::remove_all(output_directory, error);
+  error.clear();
+  if (!std::filesystem::create_directories(output_directory, error) || error) {
+    throw std::runtime_error{"Unable to create MITC4 evidence directory."};
+  }
+  const auto results = output_directory / "results.h5";
+  const auto comparison = output_directory / "comparison.json";
 
-    fesa::FesaApplication application;
-    EXPECT_EQ(
-        application.run({input.string(), "--output", results.string()}), 0);
-    EXPECT_TRUE(std::filesystem::is_regular_file(results));
-    auto comparisonResult = fesa::test::Mitc4ReferenceComparison::compare(
-        {caseId, sourceElementType, input, csv, results});
-    if (!comparisonResult.HasValue()) {
-        std::string diagnostics;
-        for (const auto& diagnostic :
-             comparisonResult.GetStatus().Diagnostics()) {
-            diagnostics += "\n" + diagnostic.code + ": " + diagnostic.message;
-        }
-        ADD_FAILURE() << "MITC4 comparison precheck failed for " << caseId
-                      << diagnostics;
-        return {{}, comparison};
+  fesa::FesaApplication application;
+  EXPECT_EQ(application.Run({input.string(), "--output", results.string()}), 0);
+  EXPECT_TRUE(std::filesystem::is_regular_file(results));
+  auto comparison_result = fesa::test::Mitc4ReferenceComparison::Compare(
+      {case_id, source_element_type, input, csv, results});
+  if (!comparison_result.HasValue()) {
+    std::string diagnostics;
+    for (const auto& diagnostic : comparison_result.GetStatus().Diagnostics()) {
+      diagnostics += "\n" + diagnostic.code + ": " + diagnostic.message;
     }
-    EXPECT_TRUE(
-        fesa::test::Mitc4ReferenceComparison::writeDeterministicJson(
-            comparisonResult.Value(), comparison)
-            .IsOk());
-    EXPECT_TRUE(std::filesystem::is_regular_file(comparison));
+    ADD_FAILURE() << "MITC4 comparison precheck failed for " << case_id
+                  << diagnostics;
+    return {{}, comparison};
+  }
+  EXPECT_TRUE(fesa::test::Mitc4ReferenceComparison::WriteDeterministicJson(
+                  comparison_result.Value(), comparison)
+                  .IsOk());
+  EXPECT_TRUE(std::filesystem::is_regular_file(comparison));
 
-    std::vector<std::string> generated;
-    for (const auto& entry :
-         std::filesystem::directory_iterator{outputDirectory}) {
-        generated.push_back(entry.path().filename().string());
-    }
-    std::sort(generated.begin(), generated.end());
-    EXPECT_EQ(
-        generated,
-        (std::vector<std::string>{"comparison.json", "results.h5"}));
-    EXPECT_TRUE(std::filesystem::is_directory(referenceDirectory));
-    expectUnchanged(input, inputBefore);
-    expectUnchanged(csv, csvBefore);
-    return {std::move(comparisonResult.Value()), comparison};
+  std::vector<std::string> generated;
+  for (const auto& entry :
+       std::filesystem::directory_iterator{output_directory}) {
+    generated.push_back(entry.path().filename().string());
+  }
+  std::sort(generated.begin(), generated.end());
+  EXPECT_EQ(generated,
+            (std::vector<std::string>{"comparison.json", "results.h5"}));
+  EXPECT_TRUE(std::filesystem::is_directory(reference_directory));
+  ExpectUnchanged(input, input_before);
+  ExpectUnchanged(csv, csv_before);
+  return {std::move(comparison_result.Value()), comparison};
 }
 
-void expectCommonMetadata(
-    const fesa::test::Mitc4ComparisonReport& report,
-    const std::string& caseId,
-    const std::string& sourceElementType) {
-    EXPECT_EQ(report.caseId, caseId);
-    EXPECT_EQ(report.sourceElementType, sourceElementType);
-    EXPECT_EQ(report.internalFormulation, kInternalFormulation);
-    EXPECT_EQ(report.integrationRule, kIntegrationRule);
+void ExpectCommonMetadata(const fesa::test::Mitc4ComparisonReport& report,
+                          const std::string& case_id,
+                          const std::string& source_element_type) {
+  EXPECT_EQ(report.case_id, case_id);
+  EXPECT_EQ(report.source_element_type, source_element_type);
+  EXPECT_EQ(report.internal_formulation, kInternalFormulation);
+  EXPECT_EQ(report.integration_rule, kIntegrationRule);
 }
 
-void expectComparisonCoverage(
-    const fesa::test::Mitc4ComparisonReport& report) {
-    ASSERT_EQ(report.rows.size(), kNodeCount * kComponentCount);
-    ASSERT_EQ(report.metrics.size(), kComponentCount);
-    ASSERT_EQ(report.vectorMetrics.size(), kNodeCount);
-    EXPECT_TRUE(report.passed);
-    const std::size_t blockingRows = static_cast<std::size_t>(std::count_if(
-        report.rows.begin(), report.rows.end(),
-        [](const fesa::test::Mitc4RowDecision& row) {
-            return row.blocking;
-        }));
-    const std::size_t rotationRows = report.rows.size() - blockingRows;
-    EXPECT_EQ(blockingRows, kNodeCount * 3U);
-    EXPECT_EQ(rotationRows, kNodeCount * 3U);
-    EXPECT_TRUE(std::all_of(
-        report.rows.begin(), report.rows.end(),
-        [](const fesa::test::Mitc4RowDecision& row) {
-            return !row.blocking || row.withinTolerance;
-        }));
-    EXPECT_EQ(
-        report.warnings.size(),
-        static_cast<std::size_t>(std::count_if(
-            report.rows.begin(), report.rows.end(),
-            [](const fesa::test::Mitc4RowDecision& row) {
-                return !row.blocking && !row.withinTolerance;
-            })));
+void ExpectComparisonCoverage(const fesa::test::Mitc4ComparisonReport& report) {
+  ASSERT_EQ(report.rows.size(), kNodeCount * kComponentCount);
+  ASSERT_EQ(report.metrics.size(), kComponentCount);
+  ASSERT_EQ(report.vector_metrics.size(), kNodeCount);
+  EXPECT_TRUE(report.passed);
+  const std::size_t blocking_rows = static_cast<std::size_t>(std::count_if(
+      report.rows.begin(), report.rows.end(),
+      [](const fesa::test::Mitc4RowDecision& row) { return row.blocking; }));
+  const std::size_t rotation_rows = report.rows.size() - blocking_rows;
+  EXPECT_EQ(blocking_rows, kNodeCount * 3U);
+  EXPECT_EQ(rotation_rows, kNodeCount * 3U);
+  EXPECT_TRUE(std::all_of(report.rows.begin(), report.rows.end(),
+                          [](const fesa::test::Mitc4RowDecision& row) {
+                            return !row.blocking || row.within_tolerance;
+                          }));
+  EXPECT_EQ(report.warnings.size(),
+            static_cast<std::size_t>(
+                std::count_if(report.rows.begin(), report.rows.end(),
+                              [](const fesa::test::Mitc4RowDecision& row) {
+                                return !row.blocking && !row.within_tolerance;
+                              })));
 }
 
 // MITC4-E2E-S4-001
 TEST(Mitc4S4Reference, PreservesS4AndWritesCommonMitc4Metadata) {
-    const std::filesystem::path root{FESA_TEST_SOURCE_DIR};
-    const auto directory = root / "reference" / "shell";
-    const auto evidence = runCase(
-        "shell-s4", "S4", directory, directory / "shell.inp",
-        directory / "shell displacements.csv", "mitc4-shell-s4-metadata");
-    expectCommonMetadata(evidence.report, "shell-s4", "S4");
+  const std::filesystem::path root{FESA_TEST_SOURCE_DIR};
+  const auto directory = root / "reference" / "shell";
+  const auto evidence =
+      RunCase("shell-s4", "S4", directory, directory / "shell.inp",
+              directory / "shell displacements.csv", "mitc4-shell-s4-metadata");
+  ExpectCommonMetadata(evidence.report, "shell-s4", "S4");
 }
 
 // MITC4-E2E-S4-002
 TEST(Mitc4S4Reference, PassesBlockingUAndReportsEveryUrRow) {
-    const std::filesystem::path root{FESA_TEST_SOURCE_DIR};
-    const auto directory = root / "reference" / "shell";
-    const auto evidence = runCase(
-        "shell-s4", "S4", directory, directory / "shell.inp",
-        directory / "shell displacements.csv", "mitc4-shell-s4-comparison");
-    expectCommonMetadata(evidence.report, "shell-s4", "S4");
-    expectComparisonCoverage(evidence.report);
+  const std::filesystem::path root{FESA_TEST_SOURCE_DIR};
+  const auto directory = root / "reference" / "shell";
+  const auto evidence = RunCase(
+      "shell-s4", "S4", directory, directory / "shell.inp",
+      directory / "shell displacements.csv", "mitc4-shell-s4-comparison");
+  ExpectCommonMetadata(evidence.report, "shell-s4", "S4");
+  ExpectComparisonCoverage(evidence.report);
 }
 
-} // namespace
+}  // namespace

tests/reference/mitc4_reference_comparison.h

@@ -0,0 +1,84 @@
+#ifndef FESA_TESTS_REFERENCE_MITC4_REFERENCE_COMPARISON_H_
+#define FESA_TESTS_REFERENCE_MITC4_REFERENCE_COMPARISON_H_
+
+#include <cstddef>
+#include <cstdint>
+#include <filesystem>
+#include <string>
+#include <vector>
+
+#include "fesa/core/status.h"
+
+namespace fesa::test {
+
+struct Mitc4ReferenceCase {
+  std::string case_id;
+  std::string expected_source_element_type;
+  std::filesystem::path input_path;
+  std::filesystem::path displacement_csv_path;
+  std::filesystem::path results_hdf5_path;
+};
+
+struct Mitc4RowDecision {
+  std::string case_id;
+  std::string instance_name;
+  std::int64_t source_node_label;
+  std::string component;
+  double fesa_value;
+  double reference_value;
+  double absolute_error;
+  double tolerance;
+  double normalized_error;
+  bool blocking;
+  bool within_tolerance;
+};
+
+struct Mitc4ComponentMetrics {
+  std::string component;
+  double reference_scale;
+  double tolerance;
+  double maximum_absolute_error;
+  double maximum_normalized_error;
+  double rms_error;
+  double vector_norm_error;
+  std::size_t worst_row;
+};
+
+struct Mitc4VectorMetrics {
+  std::string instance_name;
+  std::int64_t source_node_label;
+  double displacement_norm_error;
+  double rotation_norm_error;
+};
+
+struct Mitc4Warning {
+  std::string code;
+  std::size_t row;
+  std::string message;
+};
+
+struct Mitc4ComparisonReport {
+  std::string case_id;
+  std::string source_element_type;
+  std::string internal_formulation;
+  std::string integration_rule;
+  std::vector<Mitc4RowDecision> rows;
+  std::vector<Mitc4ComponentMetrics> metrics;
+  std::vector<Mitc4VectorMetrics> vector_metrics;
+  std::vector<Mitc4Warning> warnings;
+  std::size_t worst_row;
+  bool passed;
+};
+
+class Mitc4ReferenceComparison {
+ public:
+  static Result<Mitc4ComparisonReport> Compare(
+      const Mitc4ReferenceCase& reference_case);
+  static Status WriteDeterministicJson(
+      const Mitc4ComparisonReport& report,
+      const std::filesystem::path& output_json);
+};
+
+}  // namespace fesa::test
+
+#endif  // FESA_TESTS_REFERENCE_MITC4_REFERENCE_COMPARISON_H_

tests/reference/mitc4_reference_comparison.hpp

@@ -1,81 +0,0 @@
-#pragma once
-
-#include "fesa/core/status.h"
-
-#include <cstddef>
-#include <cstdint>
-#include <filesystem>
-#include <string>
-#include <vector>
-
-namespace fesa::test {
-
-struct Mitc4ReferenceCase {
-    std::string caseId;
-    std::string expectedSourceElementType;
-    std::filesystem::path inputPath;
-    std::filesystem::path displacementCsvPath;
-    std::filesystem::path resultsHdf5Path;
-};
-
-struct Mitc4RowDecision {
-    std::string caseId;
-    std::string instanceName;
-    std::int64_t sourceNodeLabel;
-    std::string component;
-    double fesaValue;
-    double referenceValue;
-    double absoluteError;
-    double tolerance;
-    double normalizedError;
-    bool blocking;
-    bool withinTolerance;
-};
-
-struct Mitc4ComponentMetrics {
-    std::string component;
-    double referenceScale;
-    double tolerance;
-    double maximumAbsoluteError;
-    double maximumNormalizedError;
-    double rmsError;
-    double vectorNormError;
-    std::size_t worstRow;
-};
-
-struct Mitc4VectorMetrics {
-    std::string instanceName;
-    std::int64_t sourceNodeLabel;
-    double displacementNormError;
-    double rotationNormError;
-};
-
-struct Mitc4Warning {
-    std::string code;
-    std::size_t row;
-    std::string message;
-};
-
-struct Mitc4ComparisonReport {
-    std::string caseId;
-    std::string sourceElementType;
-    std::string internalFormulation;
-    std::string integrationRule;
-    std::vector<Mitc4RowDecision> rows;
-    std::vector<Mitc4ComponentMetrics> metrics;
-    std::vector<Mitc4VectorMetrics> vectorMetrics;
-    std::vector<Mitc4Warning> warnings;
-    std::size_t worstRow;
-    bool passed;
-};
-
-class Mitc4ReferenceComparison {
-public:
-    static Result<Mitc4ComparisonReport> compare(
-        const Mitc4ReferenceCase& referenceCase);
-    static Status writeDeterministicJson(
-        const Mitc4ComparisonReport& report,
-        const std::filesystem::path& outputJson);
-};
-
-} // namespace fesa::test

tests/reference/reference_comparison.h

@@ -0,0 +1,81 @@
+#ifndef FESA_TESTS_REFERENCE_REFERENCE_COMPARISON_H_
+#define FESA_TESTS_REFERENCE_REFERENCE_COMPARISON_H_
+
+#include <array>
+#include <cstddef>
+#include <cstdint>
+#include <filesystem>
+#include <string>
+#include <vector>
+
+#include "fesa/core/status.h"
+
+namespace fesa::test {
+
+enum class ComparisonQuantity { kDisplacement, kReaction, kSectionResultant };
+
+struct CanonicalComparisonRow {
+  std::string model_id;
+  std::string step_name;
+  std::size_t frame_index;
+  std::string instance_name;
+  std::int64_t source_node_label;
+  ComparisonQuantity quantity;
+  std::string component;
+  double value;
+  std::string unit_dimension;
+  std::string coordinate_system;
+  std::string hdf5_dataset_path;
+};
+
+struct RowDecision {
+  CanonicalComparisonRow fesa;
+  CanonicalComparisonRow reference;
+  double absolute_error;
+  double tolerance;
+  bool passed;
+};
+
+struct ComponentMetrics {
+  ComparisonQuantity quantity;
+  std::string component;
+  double reference_scale;
+  double maximum_absolute_error;
+  double maximum_normalized_error;
+  double rms_error;
+  double norm_error;
+  std::size_t worst_row;
+};
+
+struct PhysicsEvidence {
+  double free_residual_norm;
+  std::array<double, 3> applied_force;
+  std::array<double, 3> reaction_force;
+  std::array<double, 3> applied_moment_about_origin;
+  std::array<double, 3> reaction_moment_about_origin;
+  bool endpoint_consistency_passed;
+};
+
+struct ComparisonReport {
+  std::vector<RowDecision> rows;
+  std::vector<ComponentMetrics> metrics;
+  PhysicsEvidence physics_evidence;
+  bool stress_comparison_applicable;
+  std::string stress_comparison_reason;
+  bool passed;
+};
+
+// Test-only comparison support keeps Abaqus artifacts read-only and exposes no
+// backend handles to the implementation or downstream verification Steps.
+class ReferenceComparison {
+ public:
+  static Result<ComparisonReport> Compare(
+      const std::filesystem::path& results_hdf5,
+      const std::filesystem::path& legacy_reference_directory);
+  static Status WriteDeterministicJson(
+      const ComparisonReport& report, const std::filesystem::path& output_json);
+};
+
+}  // namespace fesa::test
+
+#endif  // FESA_TESTS_REFERENCE_REFERENCE_COMPARISON_H_

tests/reference/reference_comparison.hpp

@@ -1,83 +0,0 @@
-#pragma once
-
-#include "fesa/core/status.h"
-
-#include <array>
-#include <cstddef>
-#include <cstdint>
-#include <filesystem>
-#include <string>
-#include <vector>
-
-namespace fesa::test {
-
-enum class ComparisonQuantity {
-    displacement,
-    reaction,
-    sectionResultant
-};
-
-struct CanonicalComparisonRow {
-    std::string modelId;
-    std::string stepName;
-    std::size_t frameIndex;
-    std::string instanceName;
-    std::int64_t sourceNodeLabel;
-    ComparisonQuantity quantity;
-    std::string component;
-    double value;
-    std::string unitDimension;
-    std::string coordinateSystem;
-    std::string hdf5DatasetPath;
-};
-
-struct RowDecision {
-    CanonicalComparisonRow fesa;
-    CanonicalComparisonRow reference;
-    double absoluteError;
-    double tolerance;
-    bool passed;
-};
-
-struct ComponentMetrics {
-    ComparisonQuantity quantity;
-    std::string component;
-    double referenceScale;
-    double maximumAbsoluteError;
-    double maximumNormalizedError;
-    double rmsError;
-    double normError;
-    std::size_t worstRow;
-};
-
-struct PhysicsEvidence {
-    double freeResidualNorm;
-    std::array<double, 3> appliedForce;
-    std::array<double, 3> reactionForce;
-    std::array<double, 3> appliedMomentAboutOrigin;
-    std::array<double, 3> reactionMomentAboutOrigin;
-    bool endpointConsistencyPassed;
-};
-
-struct ComparisonReport {
-    std::vector<RowDecision> rows;
-    std::vector<ComponentMetrics> metrics;
-    PhysicsEvidence physicsEvidence;
-    bool stressComparisonApplicable;
-    std::string stressComparisonReason;
-    bool passed;
-};
-
-// Test-only comparison support keeps Abaqus artifacts read-only and exposes no
-// backend handles to the implementation or downstream verification Steps.
-class ReferenceComparison {
-public:
-    static Result<ComparisonReport> compare(
-        const std::filesystem::path& resultsHdf5,
-        const std::filesystem::path& legacyReferenceDirectory);
-    static Status writeDeterministicJson(
-        const ComparisonReport& report,
-        const std::filesystem::path& outputJson);
-};
-
-} // namespace fesa::test

tests/unit/io/abaqus/input_reader_test.cpp

@@ -1,4 +1,4 @@
-#include "fesa/io/abaqus/input_reader.hpp"
+#include "fesa/io/abaqus/input_reader.h"
 
 #include <gtest/gtest.h>
 
@@ -12,122 +12,112 @@
 namespace {
 
 class TemporaryInputFile {
-public:
-    TemporaryInputFile(const std::string& stem, const std::string& content)
-        : path_{std::filesystem::temp_directory_path() /
-                ("fesa-" + stem + ".inp")} {
-        std::ofstream stream{path_, std::ios::binary | std::ios::trunc};
-        stream.write(content.data(), static_cast<std::streamsize>(content.size()));
-        if (!stream) {
-            throw std::runtime_error{"Unable to create INP reader test fixture."};
-        }
+ public:
+  TemporaryInputFile(const std::string& stem, const std::string& content)
+      : path_{std::filesystem::temp_directory_path() /
+              ("fesa-" + stem + ".inp")} {
+    std::ofstream stream{path_, std::ios::binary | std::ios::trunc};
+    stream.write(content.data(), static_cast<std::streamsize>(content.size()));
+    if (!stream) {
+      throw std::runtime_error{"Unable to create INP reader test fixture."};
     }
+  }
 
-    ~TemporaryInputFile() {
-        std::error_code error;
-        std::filesystem::remove(path_, error);
-    }
+  ~TemporaryInputFile() {
+    std::error_code error;
+    std::filesystem::remove(path_, error);
+  }
 
-    const std::filesystem::path& path() const noexcept {
-        return path_;
-    }
+  const std::filesystem::path& Path() const noexcept { return path_; }
 
-private:
-    std::filesystem::path path_;
+ private:
+  std::filesystem::path path_;
 };
 
-std::string readExactBytes(const std::filesystem::path& path) {
-    std::ifstream stream{path, std::ios::binary};
-    if (!stream) {
-        throw std::runtime_error{"Unable to read legacy INP fixture."};
-    }
-    return std::string{
-        std::istreambuf_iterator<char>{stream},
-        std::istreambuf_iterator<char>{}};
+std::string ReadExactBytes(const std::filesystem::path& path) {
+  std::ifstream stream{path, std::ios::binary};
+  if (!stream) {
+    throw std::runtime_error{"Unable to read legacy INP fixture."};
+  }
+  return std::string{std::istreambuf_iterator<char>{stream},
+                     std::istreambuf_iterator<char>{}};
 }
 
-std::filesystem::path repositoryRoot() {
-    auto path = std::filesystem::path{__FILE__}.parent_path();
-    for (int parent = 0; parent < 4; ++parent) {
-        path = path.parent_path();
-    }
-    return path;
+std::filesystem::path RepositoryRoot() {
+  auto path = std::filesystem::path{__FILE__}.parent_path();
+  for (int parent = 0; parent < 4; ++parent) {
+    path = path.parent_path();
+  }
+  return path;
 }
 
-} // namespace
+}  // namespace
 
 TEST(InpSyntax, RejectsMalformedOrOrphanData) {
-    const auto missingPath =
-        std::filesystem::temp_directory_path() / "fesa-missing-input.inp";
-    std::error_code removeError;
-    std::filesystem::remove(missingPath, removeError);
+  const auto missing_path =
+      std::filesystem::temp_directory_path() / "fesa-missing-input.inp";
+  std::error_code remove_error;
+  std::filesystem::remove(missing_path, remove_error);
 
-    const auto unreadable = fesa::AbaqusInputReader{}.read(missingPath);
-    ASSERT_FALSE(unreadable.HasValue());
-    EXPECT_EQ(
-        unreadable.GetStatus().Category(),
-        fesa::FailureCategory::kInput);
-    ASSERT_EQ(unreadable.GetStatus().Diagnostics().size(), 1U);
-    EXPECT_EQ(unreadable.GetStatus().Diagnostics()[0].code,
-              "input-file-unreadable");
+  const auto unreadable = fesa::AbaqusInputReader{}.Read(missing_path);
+  ASSERT_FALSE(unreadable.HasValue());
+  EXPECT_EQ(unreadable.GetStatus().Category(), fesa::FailureCategory::kInput);
+  ASSERT_EQ(unreadable.GetStatus().Diagnostics().size(), 1U);
+  EXPECT_EQ(unreadable.GetStatus().Diagnostics()[0].code,
+            "input-file-unreadable");
 
-    const TemporaryInputFile malformed{"malformed-keyword", "*, name=value\n"};
-    const auto malformedResult =
-        fesa::AbaqusInputReader{}.read(malformed.path());
-    ASSERT_FALSE(malformedResult.HasValue());
-    EXPECT_EQ(
-        malformedResult.GetStatus().Category(),
-        fesa::FailureCategory::kInput);
-    ASSERT_EQ(malformedResult.GetStatus().Diagnostics().size(), 1U);
-    EXPECT_EQ(malformedResult.GetStatus().Diagnostics()[0].code,
-              "malformed-keyword");
-    EXPECT_EQ(malformedResult.GetStatus().Diagnostics()[0].location.line, 1U);
+  const TemporaryInputFile malformed{"malformed-keyword", "*, name=value\n"};
+  const auto malformed_result =
+      fesa::AbaqusInputReader{}.Read(malformed.Path());
+  ASSERT_FALSE(malformed_result.HasValue());
+  EXPECT_EQ(malformed_result.GetStatus().Category(),
+            fesa::FailureCategory::kInput);
+  ASSERT_EQ(malformed_result.GetStatus().Diagnostics().size(), 1U);
+  EXPECT_EQ(malformed_result.GetStatus().Diagnostics()[0].code,
+            "malformed-keyword");
+  EXPECT_EQ(malformed_result.GetStatus().Diagnostics()[0].location.line, 1U);
 
-    const TemporaryInputFile orphan{
-        "orphan-data", "** comment\n\norphan, data\n"};
-    const auto orphanResult = fesa::AbaqusInputReader{}.read(orphan.path());
-    ASSERT_FALSE(orphanResult.HasValue());
-    EXPECT_EQ(
-        orphanResult.GetStatus().Category(),
-        fesa::FailureCategory::kInput);
-    ASSERT_EQ(orphanResult.GetStatus().Diagnostics().size(), 1U);
-    EXPECT_EQ(orphanResult.GetStatus().Diagnostics()[0].code,
-              "orphan-data-line");
-    EXPECT_EQ(orphanResult.GetStatus().Diagnostics()[0].location.line, 3U);
+  const TemporaryInputFile orphan{"orphan-data",
+                                  "** comment\n\norphan, data\n"};
+  const auto orphan_result = fesa::AbaqusInputReader{}.Read(orphan.Path());
+  ASSERT_FALSE(orphan_result.HasValue());
+  EXPECT_EQ(orphan_result.GetStatus().Category(),
+            fesa::FailureCategory::kInput);
+  ASSERT_EQ(orphan_result.GetStatus().Diagnostics().size(), 1U);
+  EXPECT_EQ(orphan_result.GetStatus().Diagnostics()[0].code,
+            "orphan-data-line");
+  EXPECT_EQ(orphan_result.GetStatus().Diagnostics()[0].location.line, 3U);
 }
 
 TEST(InpSyntax, ReadsLegacyCantileverWithoutMutation) {
-    const auto inputPath =
-        repositoryRoot() / "reference" / "cantilever beam" /
-        "cantilever beam.inp";
-    const auto bytesBefore = readExactBytes(inputPath);
-    const auto timestampBefore = std::filesystem::last_write_time(inputPath);
+  const auto input_path = RepositoryRoot() / "reference" / "cantilever beam" /
+                          "cantilever beam.inp";
+  const auto bytes_before = ReadExactBytes(input_path);
+  const auto timestamp_before = std::filesystem::last_write_time(input_path);
 
-    const auto result = fesa::AbaqusInputReader{}.read(inputPath);
+  const auto result = fesa::AbaqusInputReader{}.Read(input_path);
 
-    ASSERT_TRUE(result.HasValue());
-    EXPECT_EQ(result.Value().sourceContentIdentity,
-              "fnv1a64:04543464cc970405");
-    EXPECT_EQ(result.Value().sourcePath,
-              std::filesystem::absolute(inputPath).lexically_normal());
-    ASSERT_EQ(result.Value().blocks.size(), 30U);
-    EXPECT_EQ(result.Value().blocks.front().canonicalName, "HEADING");
-    EXPECT_EQ(result.Value().blocks.front().location.line, 1U);
-    EXPECT_EQ(result.Value().blocks.back().canonicalName, "END STEP");
+  ASSERT_TRUE(result.HasValue());
+  EXPECT_EQ(result.Value().source_content_identity, "fnv1a64:04543464cc970405");
+  EXPECT_EQ(result.Value().source_path,
+            std::filesystem::absolute(input_path).lexically_normal());
+  ASSERT_EQ(result.Value().blocks.size(), 30U);
+  EXPECT_EQ(result.Value().blocks.front().canonical_name, "HEADING");
+  EXPECT_EQ(result.Value().blocks.front().location.line, 1U);
+  EXPECT_EQ(result.Value().blocks.back().canonical_name, "END STEP");
 
-    const auto element = std::find_if(
-        result.Value().blocks.begin(),
-        result.Value().blocks.end(),
-        [](const fesa::KeywordBlock& block) {
-            return block.canonicalName == "ELEMENT";
-        });
-    ASSERT_NE(element, result.Value().blocks.end());
-    ASSERT_EQ(element->parameters.size(), 1U);
-    EXPECT_EQ(element->parameters[0].name, "TYPE");
-    ASSERT_TRUE(element->parameters[0].value.has_value());
-    EXPECT_EQ(*element->parameters[0].value, "B33");
-    EXPECT_EQ(element->data.size(), 10U);
+  const auto element =
+      std::find_if(result.Value().blocks.begin(), result.Value().blocks.end(),
+                   [](const fesa::KeywordBlock& block) {
+                     return block.canonical_name == "ELEMENT";
+                   });
+  ASSERT_NE(element, result.Value().blocks.end());
+  ASSERT_EQ(element->parameters.size(), 1U);
+  EXPECT_EQ(element->parameters[0].name, "TYPE");
+  ASSERT_TRUE(element->parameters[0].value.has_value());
+  EXPECT_EQ(*element->parameters[0].value, "B33");
+  EXPECT_EQ(element->data.size(), 10U);
 
-    EXPECT_EQ(readExactBytes(inputPath), bytesBefore);
-    EXPECT_EQ(std::filesystem::last_write_time(inputPath), timestampBefore);
+  EXPECT_EQ(ReadExactBytes(input_path), bytes_before);
+  EXPECT_EQ(std::filesystem::last_write_time(input_path), timestamp_before);
 }

tests/unit/io/abaqus/input_syntax_test.cpp

@@ -1,5 +1,3 @@
-#include "fesa/io/abaqus/input_reader.hpp"
-
 #include <gtest/gtest.h>
 
 #include <filesystem>
@@ -8,88 +6,84 @@
 #include <string>
 #include <vector>
 
+#include "fesa/io/abaqus/input_reader.h"
+
 namespace {
 
 class TemporaryInputFile {
-public:
-    TemporaryInputFile(const std::string& stem, const std::string& content)
-        : path_{std::filesystem::temp_directory_path() /
-                ("fesa-" + stem + ".inp")} {
-        std::ofstream stream{path_, std::ios::binary | std::ios::trunc};
-        stream.write(content.data(), static_cast<std::streamsize>(content.size()));
-        if (!stream) {
-            throw std::runtime_error{"Unable to create INP syntax test fixture."};
-        }
+ public:
+  TemporaryInputFile(const std::string& stem, const std::string& content)
+      : path_{std::filesystem::temp_directory_path() /
+              ("fesa-" + stem + ".inp")} {
+    std::ofstream stream{path_, std::ios::binary | std::ios::trunc};
+    stream.write(content.data(), static_cast<std::streamsize>(content.size()));
+    if (!stream) {
+      throw std::runtime_error{"Unable to create INP syntax test fixture."};
     }
+  }
 
-    ~TemporaryInputFile() {
-        std::error_code error;
-        std::filesystem::remove(path_, error);
-    }
+  ~TemporaryInputFile() {
+    std::error_code error;
+    std::filesystem::remove(path_, error);
+  }
 
-    const std::filesystem::path& path() const noexcept {
-        return path_;
-    }
+  const std::filesystem::path& Path() const noexcept { return path_; }
 
-private:
-    std::filesystem::path path_;
+ private:
+  std::filesystem::path path_;
 };
 
-} // namespace
+}  // namespace
 
 TEST(InpSyntax, CanonicalizesKeywordAndParameterNamesOnly) {
-    const std::string originalLine =
-        "  *eLeMeNt, TyPe= b33 , generate, ELSET=Beam_Set  ";
-    const TemporaryInputFile input{
-        "canonical-names", originalLine + "\n"};
+  const std::string original_line =
+      "  *eLeMeNt, TyPe= b33 , generate, ELSET=Beam_Set  ";
+  const TemporaryInputFile input{"canonical-names", original_line + "\n"};
 
-    const auto result = fesa::AbaqusInputReader{}.read(input.path());
+  const auto result = fesa::AbaqusInputReader{}.Read(input.Path());
 
-    ASSERT_TRUE(result.HasValue());
-    ASSERT_EQ(result.Value().blocks.size(), 1U);
-    const auto& block = result.Value().blocks[0];
-    EXPECT_EQ(block.canonicalName, "ELEMENT");
-    EXPECT_EQ(block.originalLine, originalLine);
-    EXPECT_EQ(block.location.line, 1U);
+  ASSERT_TRUE(result.HasValue());
+  ASSERT_EQ(result.Value().blocks.size(), 1U);
+  const auto& block = result.Value().blocks[0];
+  EXPECT_EQ(block.canonical_name, "ELEMENT");
+  EXPECT_EQ(block.original_line, original_line);
+  EXPECT_EQ(block.location.line, 1U);
 
-    ASSERT_EQ(block.parameters.size(), 3U);
-    EXPECT_EQ(block.parameters[0].name, "TYPE");
-    ASSERT_TRUE(block.parameters[0].value.has_value());
-    EXPECT_EQ(*block.parameters[0].value, "b33");
-    EXPECT_EQ(block.parameters[1].name, "GENERATE");
-    EXPECT_FALSE(block.parameters[1].value.has_value());
-    EXPECT_EQ(block.parameters[2].name, "ELSET");
-    ASSERT_TRUE(block.parameters[2].value.has_value());
-    EXPECT_EQ(*block.parameters[2].value, "Beam_Set");
+  ASSERT_EQ(block.parameters.size(), 3U);
+  EXPECT_EQ(block.parameters[0].name, "TYPE");
+  ASSERT_TRUE(block.parameters[0].value.has_value());
+  EXPECT_EQ(*block.parameters[0].value, "b33");
+  EXPECT_EQ(block.parameters[1].name, "GENERATE");
+  EXPECT_FALSE(block.parameters[1].value.has_value());
+  EXPECT_EQ(block.parameters[2].name, "ELSET");
+  ASSERT_TRUE(block.parameters[2].value.has_value());
+  EXPECT_EQ(*block.parameters[2].value, "Beam_Set");
 }
 
 TEST(InpSyntax, PreservesDataAndSourceLocations) {
-    const std::string exactBytes =
-        "** retained only in line accounting\r\n"
-        "\r\n"
-        "*NoDe\r\n"
-        "  0007, Label_A, ,\r\n";
-    const TemporaryInputFile input{"data-and-locations", exactBytes};
+  const std::string exact_bytes =
+      "** retained only in line accounting\r\n"
+      "\r\n"
+      "*NoDe\r\n"
+      "  0007, Label_A, ,\r\n";
+  const TemporaryInputFile input{"data-and-locations", exact_bytes};
 
-    const auto result = fesa::AbaqusInputReader{}.read(input.path());
+  const auto result = fesa::AbaqusInputReader{}.Read(input.Path());
 
-    ASSERT_TRUE(result.HasValue());
-    EXPECT_EQ(
-        result.Value().sourcePath,
-        std::filesystem::absolute(input.path()).lexically_normal());
-    EXPECT_EQ(result.Value().sourceContentIdentity,
-              "fnv1a64:c120b6ed2445be46");
-    ASSERT_EQ(result.Value().blocks.size(), 1U);
-    const auto& block = result.Value().blocks[0];
-    EXPECT_EQ(block.canonicalName, "NODE");
-    EXPECT_EQ(block.originalLine, "*NoDe");
-    EXPECT_EQ(block.location.file, result.Value().sourcePath);
-    EXPECT_EQ(block.location.line, 3U);
+  ASSERT_TRUE(result.HasValue());
+  EXPECT_EQ(result.Value().source_path,
+            std::filesystem::absolute(input.Path()).lexically_normal());
+  EXPECT_EQ(result.Value().source_content_identity, "fnv1a64:c120b6ed2445be46");
+  ASSERT_EQ(result.Value().blocks.size(), 1U);
+  const auto& block = result.Value().blocks[0];
+  EXPECT_EQ(block.canonical_name, "NODE");
+  EXPECT_EQ(block.original_line, "*NoDe");
+  EXPECT_EQ(block.location.file, result.Value().source_path);
+  EXPECT_EQ(block.location.line, 3U);
 
-    ASSERT_EQ(block.data.size(), 1U);
-    EXPECT_EQ(
-        block.data[0].fields,
-        (std::vector<std::string>{"0007", "Label_A", "", ""}));
-    EXPECT_EQ(block.data[0].location.file, result.Value().sourcePath);
-    EXPECT_EQ(block.data[0].location.line, 4U);
+  ASSERT_EQ(block.data.size(), 1U);
+  EXPECT_EQ(block.data[0].fields,
+            (std::vector<std::string>{"0007", "Label_A", "", ""}));
+  EXPECT_EQ(block.data[0].location.file, result.Value().source_path);
+  EXPECT_EQ(block.data[0].location.line, 4U);
 }