49 lines
1.5 KiB
C++
49 lines
1.5 KiB
C++
/*
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* Copyright 2022 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <ftl/match.h>
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#include <gtest/gtest.h>
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#include <chrono>
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#include <string>
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#include <variant>
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namespace android::test {
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// Keep in sync with example usage in header file.
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TEST(Match, Example) {
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using namespace std::chrono;
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using namespace std::chrono_literals;
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using namespace std::string_literals;
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std::variant<seconds, minutes, hours> duration = 119min;
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// Mutable match.
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ftl::match(duration, [](auto& d) { ++d; });
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// Immutable match. Exhaustive due to minutes being convertible to seconds.
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EXPECT_EQ("2 hours"s,
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ftl::match(
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duration,
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[](const seconds& s) {
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const auto h = duration_cast<hours>(s);
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return std::to_string(h.count()) + " hours"s;
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},
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[](const hours& h) { return std::to_string(h.count() / 24) + " days"s; }));
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}
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} // namespace android::test
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