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#include "src/tint/lang/core/fluent_types.h"
#include "src/tint/lang/glsl/writer/helper_test.h"
#include "src/tint/utils/text/string_stream.h"

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

namespace tint::glsl::writer {
namespace {

TEST_F(GlslWriterTest, Complement) {
    auto* func = b.ComputeFunction("main");
    b.Append(func->Block(), [&] {
        auto* l = b.Let("left", b.Constant(1_u));
        auto* op = b.Complement(l);
        b.Let("val", op);
        b.Return(func);
    });

    auto result = Generate();
    ASSERT_EQ(result, Success) << result.Failure().reason << output_.glsl;
    EXPECT_EQ(output_.glsl, GlslHeader() + R"(
layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
void main() {
  uint left = 1u;
  uint val = ~(left);
}
)");
}

TEST_F(GlslWriterTest, Not_Scalar) {
    auto* func = b.ComputeFunction("main");
    b.Append(func->Block(), [&] {
        auto* l = b.Let("left", b.Constant(false));
        auto* op = b.Not(l);
        b.Let("val", op);
        b.Return(func);
    });

    auto result = Generate();
    ASSERT_EQ(result, Success) << result.Failure().reason << output_.glsl;
    EXPECT_EQ(output_.glsl, GlslHeader() + R"(
layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
void main() {
  bool left = false;
  bool val = !(left);
}
)");
}

TEST_F(GlslWriterTest, Not_Vector) {
    auto* func = b.ComputeFunction("main");
    b.Append(func->Block(), [&] {
        auto* l = b.Let("left", b.Splat(ty.vec3<bool>(), false));
        auto* op = b.Not(l);
        b.Let("val", op);
        b.Return(func);
    });

    auto result = Generate();
    ASSERT_EQ(result, Success) << result.Failure().reason << output_.glsl;
    EXPECT_EQ(output_.glsl, GlslHeader() + R"(
layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
void main() {
  bvec3 left = bvec3(false);
  bvec3 val = not(left);
}
)");
}

TEST_F(GlslWriterTest, Negation) {
    auto* func = b.ComputeFunction("main");
    b.Append(func->Block(), [&] {
        auto* l = b.Let("left", b.Constant(1_i));
        auto* op = b.Negation(l);
        b.Let("val", op);
        b.Return(func);
    });

    auto result = Generate();
    ASSERT_EQ(result, Success) << result.Failure().reason << output_.glsl;
    EXPECT_EQ(output_.glsl, GlslHeader() + R"(
layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
void main() {
  int left = 1;
  int val = int((~(uint(left)) + 1u));
}
)");
}

}  // namespace
}  // namespace tint::glsl::writer
