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

using namespace XCEngine::RHI;

TEST_F(OpenGLTestFixture, DepthStencilView_Bind_Unbind) {
    OpenGLDepthStencilView dsv;
    dsv.Initialize(0);
    
    dsv.Bind();
    GLint boundFBO = 0;
    glGetIntegerv(GL_FRAMEBUFFER_BINDING, &boundFBO);
    
    dsv.Unbind();
    glGetIntegerv(GL_FRAMEBUFFER_BINDING, &boundFBO);
    
    dsv.Shutdown();
}

TEST_F(OpenGLTestFixture, DepthStencilView_Initialize_Texture) {
    OpenGLTexture texture;
    texture.Initialize2D(64, 64, 4, nullptr, false);
    
    OpenGLDepthStencilView dsv;
    bool result = dsv.Initialize(texture.GetID());
    
    if (result) {
        EXPECT_NE(dsv.GetFramebuffer(), 0u);
        dsv.Shutdown();
    }
    
    texture.Shutdown();
}

TEST_F(OpenGLTestFixture, DepthStencilView_GetTexture) {
    OpenGLTexture texture;
    texture.Initialize2D(64, 64, 4, nullptr, false);
    
    OpenGLDepthStencilView dsv;
    dsv.Initialize(texture.GetID());
    
    EXPECT_EQ(dsv.GetTexture(), texture.GetID());
    
    dsv.Shutdown();
    texture.Shutdown();
}

TEST_F(OpenGLTestFixture, DepthStencilView_GetMipLevel) {
    OpenGLTexture texture;
    texture.Initialize2D(64, 64, 4, nullptr, false);
    
    OpenGLDepthStencilView dsv;
    dsv.Initialize(texture.GetID(), 2);
    
    EXPECT_EQ(dsv.GetMipLevel(), 2);
    
    dsv.Shutdown();
    texture.Shutdown();
}