assimp/test/unit/Common/utMesh.cpp

/*
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Open Asset Import Library (assimp)
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#include "UnitTestPCH.h"

#include <assimp/mesh.h>

using namespace Assimp;

class utMesh : public ::testing::Test {
protected:
  aiMesh* mesh = nullptr;

  void SetUp() override {
    mesh = new aiMesh;
  }

  void TearDown() override {
    delete mesh;
    mesh = nullptr;
  }
};

TEST_F(utMesh, emptyMeshHasNoContentTest) {
  EXPECT_EQ(0, mesh->mName.length);
  EXPECT_FALSE(mesh->HasPositions());
  EXPECT_FALSE(mesh->HasFaces());
  EXPECT_FALSE(mesh->HasNormals());
  EXPECT_FALSE(mesh->HasTangentsAndBitangents());
  EXPECT_FALSE(mesh->HasVertexColors(0));
  EXPECT_FALSE(mesh->HasVertexColors(AI_MAX_NUMBER_OF_COLOR_SETS));
  EXPECT_FALSE(mesh->HasTextureCoords(0));
  EXPECT_FALSE(mesh->HasTextureCoords(AI_MAX_NUMBER_OF_TEXTURECOORDS));
  EXPECT_EQ(0, mesh->GetNumUVChannels());
  EXPECT_EQ(0, mesh->GetNumColorChannels());
  EXPECT_FALSE(mesh->HasBones());
  EXPECT_FALSE(mesh->HasTextureCoordsName(0));
  EXPECT_FALSE(mesh->HasTextureCoordsName(AI_MAX_NUMBER_OF_TEXTURECOORDS));
}

TEST_F(utMesh, setTextureCoordsName) {
  EXPECT_FALSE(mesh->HasTextureCoordsName(0));
  const aiString texcoords_name("texcoord_name");
  mesh->SetTextureCoordsName(0, texcoords_name);
  EXPECT_TRUE(mesh->HasTextureCoordsName(0));
  EXPECT_FALSE(mesh->HasTextureCoordsName(1));
  ASSERT_NE(nullptr, mesh->mTextureCoordsNames);
  ASSERT_NE(nullptr, mesh->mTextureCoordsNames[0]);
  EXPECT_STREQ(texcoords_name.C_Str(), mesh->mTextureCoordsNames[0]->C_Str());
  EXPECT_STREQ(texcoords_name.C_Str(), mesh->GetTextureCoordsName(0)->C_Str());

  // Now clear the name
  mesh->SetTextureCoordsName(0, aiString());
  EXPECT_FALSE(mesh->HasTextureCoordsName(0));
  ASSERT_NE(nullptr, mesh->mTextureCoordsNames);
  EXPECT_EQ(nullptr, mesh->mTextureCoordsNames[0]);
  EXPECT_EQ(nullptr, mesh->GetTextureCoordsName(0));
}