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extern/draco/dracoenc/src/draco/mesh/mesh_are_equivalent_test.cc
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| // Copyright 2016 The Draco Authors. | |||||
| // | |||||
| // Licensed under the Apache License, Version 2.0 (the "License"); | |||||
| // you may not use this file except in compliance with the License. | |||||
| // You may obtain a copy of the License at | |||||
| // | |||||
| // http://www.apache.org/licenses/LICENSE-2.0 | |||||
| // | |||||
| // Unless required by applicable law or agreed to in writing, software | |||||
| // distributed under the License is distributed on an "AS IS" BASIS, | |||||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |||||
| // See the License for the specific language governing permissions and | |||||
| // limitations under the License. | |||||
| // | |||||
| #include "draco/mesh/mesh_are_equivalent.h" | |||||
| #include <sstream> | |||||
| #include "draco/core/draco_test_base.h" | |||||
| #include "draco/core/draco_test_utils.h" | |||||
| #include "draco/io/mesh_io.h" | |||||
| #include "draco/io/obj_decoder.h" | |||||
| #include "draco/mesh/mesh.h" | |||||
| namespace draco { | |||||
| class MeshAreEquivalentTest : public ::testing::Test {}; | |||||
| TEST_F(MeshAreEquivalentTest, TestOnIndenticalMesh) { | |||||
| const std::string file_name = "test_nm.obj"; | |||||
| const std::unique_ptr<Mesh> mesh(ReadMeshFromTestFile(file_name)); | |||||
| ASSERT_NE(mesh, nullptr) << "Failed to load test model." << file_name; | |||||
| MeshAreEquivalent equiv; | |||||
| ASSERT_TRUE(equiv(*mesh, *mesh)); | |||||
| } | |||||
| TEST_F(MeshAreEquivalentTest, TestPermutedOneFace) { | |||||
| const std::string file_name_0 = "one_face_123.obj"; | |||||
| const std::string file_name_1 = "one_face_312.obj"; | |||||
| const std::string file_name_2 = "one_face_321.obj"; | |||||
| const std::unique_ptr<Mesh> mesh_0(ReadMeshFromTestFile(file_name_0)); | |||||
| const std::unique_ptr<Mesh> mesh_1(ReadMeshFromTestFile(file_name_1)); | |||||
| const std::unique_ptr<Mesh> mesh_2(ReadMeshFromTestFile(file_name_2)); | |||||
| ASSERT_NE(mesh_0, nullptr) << "Failed to load test model." << file_name_0; | |||||
| ASSERT_NE(mesh_1, nullptr) << "Failed to load test model." << file_name_1; | |||||
| ASSERT_NE(mesh_2, nullptr) << "Failed to load test model." << file_name_2; | |||||
| MeshAreEquivalent equiv; | |||||
| ASSERT_TRUE(equiv(*mesh_0, *mesh_0)); | |||||
| ASSERT_TRUE(equiv(*mesh_0, *mesh_1)); // Face rotated. | |||||
| ASSERT_FALSE(equiv(*mesh_0, *mesh_2)); // Face inverted. | |||||
| } | |||||
| TEST_F(MeshAreEquivalentTest, TestPermutedTwoFaces) { | |||||
| const std::string file_name_0 = "two_faces_123.obj"; | |||||
| const std::string file_name_1 = "two_faces_312.obj"; | |||||
| const std::unique_ptr<Mesh> mesh_0(ReadMeshFromTestFile(file_name_0)); | |||||
| const std::unique_ptr<Mesh> mesh_1(ReadMeshFromTestFile(file_name_1)); | |||||
| ASSERT_NE(mesh_0, nullptr) << "Failed to load test model." << file_name_0; | |||||
| ASSERT_NE(mesh_1, nullptr) << "Failed to load test model." << file_name_1; | |||||
| MeshAreEquivalent equiv; | |||||
| ASSERT_TRUE(equiv(*mesh_0, *mesh_0)); | |||||
| ASSERT_TRUE(equiv(*mesh_1, *mesh_1)); | |||||
| ASSERT_TRUE(equiv(*mesh_0, *mesh_1)); | |||||
| } | |||||
| // | |||||
| TEST_F(MeshAreEquivalentTest, TestPermutedThreeFaces) { | |||||
| const std::string file_name_0 = "three_faces_123.obj"; | |||||
| const std::string file_name_1 = "three_faces_312.obj"; | |||||
| const std::unique_ptr<Mesh> mesh_0(ReadMeshFromTestFile(file_name_0)); | |||||
| const std::unique_ptr<Mesh> mesh_1(ReadMeshFromTestFile(file_name_1)); | |||||
| ASSERT_NE(mesh_0, nullptr) << "Failed to load test model." << file_name_0; | |||||
| ASSERT_NE(mesh_1, nullptr) << "Failed to load test model." << file_name_1; | |||||
| MeshAreEquivalent equiv; | |||||
| ASSERT_TRUE(equiv(*mesh_0, *mesh_0)); | |||||
| ASSERT_TRUE(equiv(*mesh_1, *mesh_1)); | |||||
| ASSERT_TRUE(equiv(*mesh_0, *mesh_1)); | |||||
| } | |||||
| // This test checks that the edgebreaker algorithm does not change the mesh up | |||||
| // to the order of faces and vertices. | |||||
| TEST_F(MeshAreEquivalentTest, TestOnBigMesh) { | |||||
| const std::string file_name = "test_nm.obj"; | |||||
| const std::unique_ptr<Mesh> mesh0(ReadMeshFromTestFile(file_name)); | |||||
| ASSERT_NE(mesh0, nullptr) << "Failed to load test model." << file_name; | |||||
| std::unique_ptr<Mesh> mesh1; | |||||
| std::stringstream ss; | |||||
| WriteMeshIntoStream(mesh0.get(), ss, MESH_EDGEBREAKER_ENCODING); | |||||
| ReadMeshFromStream(&mesh1, ss); | |||||
| ASSERT_TRUE(ss.good()) << "Mesh IO failed."; | |||||
| MeshAreEquivalent equiv; | |||||
| ASSERT_TRUE(equiv(*mesh0, *mesh0)); | |||||
| ASSERT_TRUE(equiv(*mesh1, *mesh1)); | |||||
| ASSERT_TRUE(equiv(*mesh0, *mesh1)); | |||||
| } | |||||
| } // namespace draco | |||||