feat(domain-and-input-skeleton): step 1 — domain-validation

tests/unit/model/entity_origin_test.cpp

@@ -1,10 +1,8 @@
-#include <fesa/model/domain.hpp>
+#include <fesa/model/domain_builder.hpp>
 
 #include <span>
 #include <type_traits>
 #include <utility>
-#include <vector>
-
 #include <gtest/gtest.h>
 
 namespace {
@@ -31,15 +29,12 @@ TEST(EntityOrigin, FindsHierarchicalNodeByCompositeOrigin) {
         fesa::EntityOrigin{"BeamPart", "Beam-1", 101},
         fesa::Vec3{1.0, 2.0, 3.0},
     };
-    const fesa::Domain domain{
-        std::vector<fesa::Node>{node},
-        {},
-        {},
-        {},
-        {},
-        {},
-        fesa::StepDefinition{"Load", {}, {}},
-    };
+    fesa::DomainBuilder builder;
+    builder.add_node(node);
+    builder.set_step(fesa::StepDefinition{"Load", {}, {}});
+    auto result = std::move(builder).build();
+    ASSERT_TRUE(result.domain.has_value());
+    const fesa::Domain& domain = *result.domain;
 
     const fesa::EntityOrigin lookup{"BeamPart", "Beam-1", 101};
     const fesa::Node& found_by_origin = domain.node(lookup);