XCEngine/tests/RHI/OpenGL/unit/test_render_target_view.cpp

#include "fixtures/OpenGLTestFixture.h"
#include "XCEngine/RHI/OpenGL/OpenGLRenderTargetView.h"
#include "XCEngine/RHI/OpenGL/OpenGLTexture.h"

using namespace XCEngine::RHI;

TEST_F(OpenGLTestFixture, RenderTargetView_Initialize_Texture2D) {
    OpenGLTexture texture;
    texture.Initialize2D(64, 64, 4, nullptr, false);
    
    OpenGLRenderTargetView rtv;
    bool result = rtv.Initialize(texture.GetID());
    
    ASSERT_TRUE(result);
    EXPECT_NE(rtv.GetFramebuffer(), 0u);
    
    rtv.Shutdown();
    texture.Shutdown();
}

TEST_F(OpenGLTestFixture, RenderTargetView_Bind_Unbind) {
    OpenGLTexture texture;
    texture.Initialize2D(64, 64, 4, nullptr, false);
    
    OpenGLRenderTargetView rtv;
    rtv.Initialize(texture.GetID());
    
    rtv.Bind();
    GLint boundFBO = 0;
    glGetIntegerv(GL_FRAMEBUFFER_BINDING, &boundFBO);
    EXPECT_NE(boundFBO, 0);
    
    rtv.Unbind();
    glGetIntegerv(GL_FRAMEBUFFER_BINDING, &boundFBO);
    EXPECT_EQ(boundFBO, 0);
    
    rtv.Shutdown();
    texture.Shutdown();
}

TEST_F(OpenGLTestFixture, RenderTargetView_GetTexture) {
    OpenGLTexture texture;
    texture.Initialize2D(64, 64, 4, nullptr, false);
    
    OpenGLRenderTargetView rtv;
    rtv.Initialize(texture.GetID());
    
    EXPECT_EQ(rtv.GetTexture(), texture.GetID());
    
    rtv.Shutdown();
    texture.Shutdown();
}

TEST_F(OpenGLTestFixture, RenderTargetView_GetMipLevel) {
    OpenGLTexture texture;
    texture.Initialize2D(64, 64, 4, nullptr, false);
    
    OpenGLRenderTargetView rtv;
    rtv.Initialize(texture.GetID(), 0);
    
    EXPECT_EQ(rtv.GetMipLevel(), 0);
    
    rtv.Shutdown();
    texture.Shutdown();
}