AimRT/_deps/libunifex-src/test/reduce_stream_test.cpp
2025-01-12 20:42:42 +08:00

60 lines
1.6 KiB
C++

/*
* Copyright (c) Facebook, Inc. and its affiliates.
*
* Licensed under the Apache License Version 2.0 with LLVM Exceptions
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* https://llvm.org/LICENSE.txt
*
* 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 <unifex/reduce_stream.hpp>
#include <unifex/sync_wait.hpp>
#include <unifex/transform_stream.hpp>
#include <unifex/then.hpp>
#include <unifex/range_stream.hpp>
#include <cstdio>
#include <gtest/gtest.h>
using namespace unifex;
TEST(reduce_stream, Smoke) {
int finalResult;
sync_wait(then(
reduce_stream(
transform_stream(
range_stream{0, 10},
[](int value) { return value * value; }),
0,
[](int state, int value) { return state + value; }),
[&](int result) { finalResult = result; }));
EXPECT_EQ(finalResult, 285);
std::printf("result = %i\n", finalResult);
}
TEST(reduce_stream, Pipeable) {
int finalResult;
range_stream{0, 10}
| transform_stream(
[](int value) { return value * value; })
| reduce_stream(
0,
[](int state, int value) { return state + value; })
| then([&](int result) { finalResult = result; })
| sync_wait();
EXPECT_EQ(finalResult, 285);
std::printf("result = %i\n", finalResult);
}