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#include "src/tint/lang/core/type/sampler.h"
#include "src/tint/lang/core/type/helper_test.h"
#include "src/tint/lang/core/type/texture.h"

namespace tint::core::type {
namespace {

using SamplerTest = TestHelper;

TEST_F(SamplerTest, Creation) {
    auto* a = create<Sampler>(SamplerKind::kSampler);
    auto* b = create<Sampler>(SamplerKind::kSampler);
    auto* c = create<Sampler>(SamplerKind::kComparisonSampler);

    EXPECT_EQ(a->kind(), SamplerKind::kSampler);
    EXPECT_EQ(c->kind(), SamplerKind::kComparisonSampler);

    EXPECT_FALSE(a->IsComparison());
    EXPECT_TRUE(c->IsComparison());

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

TEST_F(SamplerTest, Hash) {
    auto* a = create<Sampler>(SamplerKind::kSampler);
    auto* b = create<Sampler>(SamplerKind::kSampler);

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

TEST_F(SamplerTest, Equals) {
    auto* a = create<Sampler>(SamplerKind::kSampler);
    auto* b = create<Sampler>(SamplerKind::kSampler);
    auto* c = create<Sampler>(SamplerKind::kComparisonSampler);

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

TEST_F(SamplerTest, FriendlyNameSampler) {
    Sampler s{SamplerKind::kSampler};
    EXPECT_EQ(s.FriendlyName(), "sampler");
}

TEST_F(SamplerTest, FriendlyNameComparisonSampler) {
    Sampler s{SamplerKind::kComparisonSampler};
    EXPECT_EQ(s.FriendlyName(), "sampler_comparison");
}

TEST_F(SamplerTest, Clone) {
    auto* a = create<Sampler>(SamplerKind::kSampler);

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

    auto* mt = a->Clone(ctx);
    EXPECT_EQ(mt->kind(), SamplerKind::kSampler);
}

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