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// Copyright 2020 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/functional/not_fn.h"
#include <functional>
#include "testing/gtest/include/gtest/gtest.h"
namespace base {
TEST(FunctionalTest, NotFn) {
constexpr auto not_less = base::not_fn(std::less<>());
using NotLessT = decltype(not_less);
static_assert(static_cast<const NotLessT&>(not_less)(1, 1), "");
static_assert(static_cast<NotLessT&>(not_less)(2, 1), "");
static_assert(static_cast<const NotLessT&&>(not_less)(2, 2), "");
static_assert(!static_cast<NotLessT&&>(not_less)(1, 2), "");
}
} // namespace base
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