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/*
* Copyright (c) 2019 Samsung Electronics Co., Ltd. All Rights Reserved
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "fipe.h"
#include <string>
#include <gtest/gtest.h>
namespace
{
int dec(int n) { return n - 1; }
} // namespace
TEST(FunctionPipeTests, top_level_function)
{
// GCC rejects this code if dec is not wrapped by "fipe::wrap"
// TODO Find a better way
ASSERT_EQ(4 | fipe::wrap(dec), 3);
}
TEST(FunctionPipeTests, static_method)
{
struct Sample
{
static int dbl(int n) { return n * 2; }
};
ASSERT_EQ(4 | fipe::wrap(Sample::dbl), 8);
}
TEST(FunctionPipeTests, normal_method)
{
struct Sample
{
public:
int shift(int n) { return n + shiftamt; }
private:
int shiftamt = 6;
};
using namespace std::placeholders;
Sample s;
auto value = 4 | std::bind(&Sample::shift, &s, _1);
ASSERT_EQ(value, 10);
}
TEST(FunctionPipeTests, lambda)
{
auto inc = [](int n) { return n + 1; };
ASSERT_EQ(4 | inc, 5);
}
TEST(FunctionPipeTests, functor) { ASSERT_EQ(4 | std::negate<int>(), -4); }
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