feat(cpp-object-oriented-modular-refactoring): step 10 - dense-blas-adapter

2026-08-16 07:49:57 +09:00
parent 6b0ff31db0
commit 89fc13c873
7 changed files with 146 additions and 49 deletions
@@ -0,0 +1,39 @@
+#include "math/dense_blas_internal.h"
+
+#include <gtest/gtest.h>
+
+#include <array>
+#include <cstddef>
+#include <limits>
+
+namespace fesa::dense_blas_internal {
+namespace {
+
+TEST(DenseBlasInternal, CDup003ConvertsZeroNormalAndOverflowLengths) {
+  const auto zero = ToMklSize(0U);
+  ASSERT_TRUE(zero.HasValue());
+  EXPECT_EQ(zero.Value(), 0);
+
+  const auto normal = ToMklSize(3U);
+  ASSERT_TRUE(normal.HasValue());
+  EXPECT_EQ(normal.Value(), 3);
+
+  const std::size_t overflow =
+      static_cast<std::size_t>((std::numeric_limits<MKL_INT>::max)()) + 1U;
+  const auto rejected = ToMklSize(overflow);
+  EXPECT_FALSE(rejected.HasValue());
+  EXPECT_FALSE(rejected.GetStatus().IsOk());
+}
+
+TEST(DenseBlasInternal, CDup003CopiesZeroAndNonzeroContiguousValues) {
+  EXPECT_NO_THROW(CopyValues(nullptr, 0U, nullptr));
+
+  const std::array<double, 3U> source{1.25, -2.5, 4.0};
+  std::array<double, 3U> destination{};
+  CopyValues(source.data(), source.size(), destination.data());
+
+  EXPECT_EQ(destination, source);
+}
+
+}  // namespace
+}  // namespace fesa::dense_blas_internal