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/*
* Copyright 2022 The Android Open Source Project
*
* 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 <ftl/match.h>
#include <gtest/gtest.h>
#include <chrono>
#include <string>
#include <variant>
namespace android::test {
// Keep in sync with example usage in header file.
TEST(Match, Example) {
using namespace std::chrono;
using namespace std::chrono_literals;
using namespace std::string_literals;
std::variant<seconds, minutes, hours> duration = 119min;
// Mutable match.
ftl::match(duration, [](auto& d) { ++d; });
// Immutable match. Exhaustive due to minutes being convertible to seconds.
EXPECT_EQ("2 hours"s,
ftl::match(
duration,
[](const seconds& s) {
const auto h = duration_cast<hours>(s);
return std::to_string(h.count()) + " hours"s;
},
[](const hours& h) { return std::to_string(h.count() / 24) + " days"s; }));
}
} // namespace android::test
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