// Copyright 2020 The Dawn & Tint Authors
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#include "src/tint/lang/wgsl/ast/helper_test.h"

#include "src/tint/utils/text/string_stream.h"

namespace tint::ast {
namespace {

using FloatLiteralExpressionTest = TestHelper;

TEST_F(FloatLiteralExpressionTest, SuffixNone) {
    auto* i = create<FloatLiteralExpression>(42.0, FloatLiteralExpression::Suffix::kNone);
    ASSERT_TRUE(i->Is<FloatLiteralExpression>());
    EXPECT_EQ(i->value, 42);
    EXPECT_EQ(i->suffix, FloatLiteralExpression::Suffix::kNone);
}

TEST_F(FloatLiteralExpressionTest, SuffixF) {
    auto* i = create<FloatLiteralExpression>(42.0, FloatLiteralExpression::Suffix::kF);
    ASSERT_TRUE(i->Is<FloatLiteralExpression>());
    EXPECT_EQ(i->value, 42);
    EXPECT_EQ(i->suffix, FloatLiteralExpression::Suffix::kF);
}

TEST_F(FloatLiteralExpressionTest, SuffixH) {
    auto* i = create<FloatLiteralExpression>(42.0, FloatLiteralExpression::Suffix::kH);
    ASSERT_TRUE(i->Is<FloatLiteralExpression>());
    EXPECT_EQ(i->value, 42);
    EXPECT_EQ(i->suffix, FloatLiteralExpression::Suffix::kH);
}

TEST_F(FloatLiteralExpressionTest, SuffixStringStream) {
    auto to_str = [](FloatLiteralExpression::Suffix suffix) {
        StringStream ss;
        ss << suffix;
        return ss.str();
    };

    EXPECT_EQ("", to_str(FloatLiteralExpression::Suffix::kNone));
    EXPECT_EQ("f", to_str(FloatLiteralExpression::Suffix::kF));
    EXPECT_EQ("h", to_str(FloatLiteralExpression::Suffix::kH));
}

}  // namespace
}  // namespace tint::ast