Tools/TestWebKitAPI/Tests/WTF/EnumTraits.cpp

/*
 * Copyright (C) 2016 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
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 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
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 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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#include "config.h"

#include <wtf/EnumTraits.h>

enum class TestEnum {
    A,
    B,
    C,
};

namespace WTF {
template<> struct EnumTraits<TestEnum> {
    using values = EnumValues<TestEnum, TestEnum::A, TestEnum::B, TestEnum::C>;
};
}

namespace TestWebKitAPI {

static_assert(WTF::isValidEnum<TestEnum>(0), "");
static_assert(!WTF::isValidEnum<TestEnum>(-1), "");
static_assert(!WTF::isValidEnum<TestEnum>(3), "");

TEST(WTF_EnumTraits, IsValidEnum)
{
    EXPECT_TRUE(isValidEnum<TestEnum>(0));
    EXPECT_FALSE(isValidEnum<TestEnum>(-1));
    EXPECT_FALSE(isValidEnum<TestEnum>(3));
}

}