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#include "src/tint/lang/core/type/depth_texture.h"

#include "src/tint/lang/core/type/external_texture.h"
#include "src/tint/lang/core/type/helper_test.h"
#include "src/tint/lang/core/type/sampled_texture.h"
#include "src/tint/lang/core/type/storage_texture.h"
#include "src/tint/lang/core/type/texture_dimension.h"

namespace tint::core::type {
namespace {

using DepthTextureTest = TestHelper;

TEST_F(DepthTextureTest, Creation) {
    auto* a = create<DepthTexture>(TextureDimension::k2d);
    auto* b = create<DepthTexture>(TextureDimension::k2d);
    auto* c = create<DepthTexture>(TextureDimension::k2dArray);

    EXPECT_EQ(a, b);
    EXPECT_NE(a, c);
}

TEST_F(DepthTextureTest, Hash) {
    auto* a = create<DepthTexture>(TextureDimension::k2d);
    auto* b = create<DepthTexture>(TextureDimension::k2d);

    EXPECT_EQ(a->unique_hash, b->unique_hash);
}

TEST_F(DepthTextureTest, Equals) {
    auto* a = create<DepthTexture>(TextureDimension::k2d);
    auto* b = create<DepthTexture>(TextureDimension::k2d);
    auto* c = create<DepthTexture>(TextureDimension::k2dArray);

    EXPECT_TRUE(a->Equals(*b));
    EXPECT_FALSE(a->Equals(*c));
    EXPECT_FALSE(a->Equals(Void{}));
}

TEST_F(DepthTextureTest, IsTexture) {
    DepthTexture d(TextureDimension::kCube);
    Texture* ty = &d;
    EXPECT_TRUE(ty->Is<DepthTexture>());
    EXPECT_FALSE(ty->Is<ExternalTexture>());
    EXPECT_FALSE(ty->Is<SampledTexture>());
    EXPECT_FALSE(ty->Is<StorageTexture>());
}

TEST_F(DepthTextureTest, Dim) {
    DepthTexture d(TextureDimension::kCube);
    EXPECT_EQ(d.dim(), TextureDimension::kCube);
}

TEST_F(DepthTextureTest, FriendlyName) {
    DepthTexture d(TextureDimension::kCube);
    EXPECT_EQ(d.FriendlyName(), "texture_depth_cube");
}

TEST_F(DepthTextureTest, Clone) {
    auto* a = create<DepthTexture>(TextureDimension::k2d);

    core::type::Manager mgr;
    core::type::CloneContext ctx{{nullptr}, {nullptr, &mgr}};

    auto* dt = a->Clone(ctx);
    EXPECT_EQ(dt->dim(), TextureDimension::k2d);
}

}  // namespace
}  // namespace tint::core::type