136 lines
5.1 KiB
C++
136 lines
5.1 KiB
C++
#include <gtest/gtest.h>
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#include <XCEngine/Resources/Mesh/MeshLoader.h>
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#include <XCEngine/Resources/Mesh/MeshImportSettings.h>
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#include <XCEngine/Resources/Material/Material.h>
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#include <XCEngine/Resources/Texture/Texture.h>
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#include <XCEngine/Core/Asset/ResourceTypes.h>
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#include <XCEngine/Core/Containers/Array.h>
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#include <filesystem>
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using namespace XCEngine::Resources;
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using namespace XCEngine::Containers;
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namespace {
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std::string GetMeshFixturePath(const char* fileName) {
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return (std::filesystem::path(XCENGINE_TEST_FIXTURES_DIR) / "Resources" / "Mesh" / fileName).string();
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}
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TEST(MeshLoader, GetResourceType) {
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MeshLoader loader;
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EXPECT_EQ(loader.GetResourceType(), ResourceType::Mesh);
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}
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TEST(MeshLoader, GetSupportedExtensions) {
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MeshLoader loader;
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auto extensions = loader.GetSupportedExtensions();
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EXPECT_GE(extensions.Size(), 1u);
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}
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TEST(MeshLoader, CanLoad) {
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MeshLoader loader;
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EXPECT_TRUE(loader.CanLoad("test.obj"));
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EXPECT_TRUE(loader.CanLoad("test.fbx"));
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EXPECT_TRUE(loader.CanLoad("test.gltf"));
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EXPECT_TRUE(loader.CanLoad("test.OBJ"));
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EXPECT_FALSE(loader.CanLoad("test.txt"));
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EXPECT_FALSE(loader.CanLoad("test.png"));
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}
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TEST(MeshLoader, LoadInvalidPath) {
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MeshLoader loader;
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LoadResult result = loader.Load("invalid/path/mesh.obj");
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EXPECT_FALSE(result);
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}
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TEST(MeshLoader, LoadValidObjMesh) {
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MeshLoader loader;
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const std::string path = GetMeshFixturePath("triangle.obj");
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LoadResult result = loader.Load(path.c_str());
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ASSERT_TRUE(result);
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ASSERT_NE(result.resource, nullptr);
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auto* mesh = static_cast<Mesh*>(result.resource);
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EXPECT_EQ(mesh->GetVertexCount(), 3u);
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EXPECT_EQ(mesh->GetIndexCount(), 3u);
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EXPECT_EQ(mesh->GetVertexStride(), sizeof(StaticMeshVertex));
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EXPECT_FALSE(mesh->IsUse32BitIndex());
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ASSERT_EQ(mesh->GetSections().Size(), 1u);
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EXPECT_EQ(mesh->GetSections()[0].vertexCount, 3u);
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EXPECT_EQ(mesh->GetSections()[0].indexCount, 3u);
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EXPECT_TRUE(HasVertexAttribute(mesh->GetVertexAttributes(), VertexAttribute::Position));
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EXPECT_TRUE(HasVertexAttribute(mesh->GetVertexAttributes(), VertexAttribute::Normal));
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EXPECT_TRUE(HasVertexAttribute(mesh->GetVertexAttributes(), VertexAttribute::UV0));
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EXPECT_EQ(mesh->GetBounds().GetMin(), XCEngine::Math::Vector3(0.0f, 0.0f, -1.0f));
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EXPECT_EQ(mesh->GetBounds().GetMax(), XCEngine::Math::Vector3(1.0f, 1.0f, -1.0f));
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EXPECT_EQ(mesh->GetSections()[0].bounds.GetMin(), XCEngine::Math::Vector3(0.0f, 0.0f, -1.0f));
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EXPECT_EQ(mesh->GetSections()[0].bounds.GetMax(), XCEngine::Math::Vector3(1.0f, 1.0f, -1.0f));
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const auto* vertices = static_cast<const StaticMeshVertex*>(mesh->GetVertexData());
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ASSERT_NE(vertices, nullptr);
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EXPECT_FLOAT_EQ(vertices[0].position.x, 0.0f);
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EXPECT_FLOAT_EQ(vertices[0].position.y, 0.0f);
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EXPECT_FLOAT_EQ(vertices[0].position.z, -1.0f);
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EXPECT_FLOAT_EQ(vertices[0].normal.z, -1.0f);
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EXPECT_FLOAT_EQ(vertices[1].uv0.x, 1.0f);
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EXPECT_FLOAT_EQ(vertices[2].uv0.y, 1.0f);
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delete mesh;
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}
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TEST(MeshLoader, GeneratesNormalsAndTangentsWhenRequested) {
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MeshLoader loader;
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MeshImportSettings settings;
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settings.AddImportFlag(MeshImportFlags::GenerateNormals);
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settings.AddImportFlag(MeshImportFlags::GenerateTangents);
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const std::string path = GetMeshFixturePath("triangle_no_normals.obj");
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LoadResult result = loader.Load(path.c_str(), &settings);
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ASSERT_TRUE(result);
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ASSERT_NE(result.resource, nullptr);
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auto* mesh = static_cast<Mesh*>(result.resource);
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EXPECT_TRUE(HasVertexAttribute(mesh->GetVertexAttributes(), VertexAttribute::Normal));
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EXPECT_TRUE(HasVertexAttribute(mesh->GetVertexAttributes(), VertexAttribute::Tangent));
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EXPECT_TRUE(HasVertexAttribute(mesh->GetVertexAttributes(), VertexAttribute::Bitangent));
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const auto* vertices = static_cast<const StaticMeshVertex*>(mesh->GetVertexData());
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ASSERT_NE(vertices, nullptr);
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EXPECT_GT(vertices[0].normal.Magnitude(), 0.0f);
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EXPECT_GT(vertices[0].tangent.Magnitude(), 0.0f);
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EXPECT_GT(vertices[0].bitangent.Magnitude(), 0.0f);
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delete mesh;
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}
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TEST(MeshLoader, ImportsMaterialTexturesFromObj) {
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MeshLoader loader;
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const std::string path = GetMeshFixturePath("textured_triangle.obj");
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LoadResult result = loader.Load(path.c_str());
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ASSERT_TRUE(result);
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ASSERT_NE(result.resource, nullptr);
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auto* mesh = static_cast<Mesh*>(result.resource);
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ASSERT_EQ(mesh->GetSections().Size(), 1u);
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ASSERT_GE(mesh->GetMaterials().Size(), 1u);
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EXPECT_LT(mesh->GetSections()[0].materialID, mesh->GetMaterials().Size());
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Material* material = mesh->GetMaterial(mesh->GetSections()[0].materialID);
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ASSERT_NE(material, nullptr);
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EXPECT_TRUE(material->HasProperty("baseColorTexture"));
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EXPECT_EQ(material->GetTextureBindingCount(), 1u);
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ResourceHandle<Texture> diffuseTexture = material->GetTexture("baseColorTexture");
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ASSERT_TRUE(diffuseTexture.IsValid());
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EXPECT_EQ(diffuseTexture->GetWidth(), 2u);
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EXPECT_EQ(diffuseTexture->GetHeight(), 2u);
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EXPECT_EQ(diffuseTexture->GetPixelDataSize(), 16u);
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EXPECT_EQ(mesh->GetTextures().Size(), 1u);
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delete mesh;
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}
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} // namespace
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