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#include "src/tint/lang/core/fluent_types.h"
#include "src/tint/lang/spirv/writer/ast_printer/helper_test.h"
#include "src/tint/lang/spirv/writer/common/spv_dump_test.h"

using namespace tint::core::number_suffixes;  // NOLINT
using namespace tint::core::fluent_types;     // NOLINT

namespace tint::spirv::writer {
namespace {

using SpirvASTPrinterTest = TestHelper;

TEST_F(SpirvASTPrinterTest, Bitcast) {
    auto* bitcast = Bitcast<u32>(Expr(2.4_f));

    WrapInFunction(bitcast);

    Builder& b = Build();

    b.PushFunctionForTesting();
    EXPECT_EQ(b.GenerateBitcastExpression(bitcast), 1u);

    EXPECT_EQ(DumpInstructions(b.Module().Types()), R"(%2 = OpTypeInt 32 0
%3 = OpTypeFloat 32
%4 = OpConstant %3 2.4000001
)");
    EXPECT_EQ(DumpInstructions(b.CurrentFunction().instructions()),
              R"(%1 = OpBitcast %2 %4
)");
}

TEST_F(SpirvASTPrinterTest, Bitcast_DuplicateType) {
    auto* bitcast = Bitcast<f32>(Expr(2.4_f));

    WrapInFunction(bitcast);

    Builder& b = Build();

    b.PushFunctionForTesting();
    EXPECT_EQ(b.GenerateBitcastExpression(bitcast), 1u);

    EXPECT_EQ(DumpInstructions(b.Module().Types()), R"(%2 = OpTypeFloat 32
%3 = OpConstant %2 2.4000001
)");
    EXPECT_EQ(DumpInstructions(b.CurrentFunction().instructions()),
              R"(%1 = OpCopyObject %2 %3
)");
}

}  // namespace
}  // namespace tint::spirv::writer