73 lines
2.2 KiB
C++
73 lines
2.2 KiB
C++
/*
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* Copyright 2021 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/concat.h>
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#include <gtest/gtest.h>
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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(Concat, Example) {
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std::string_view name = "Volume";
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ftl::Concat string(ftl::truncated<3>(name), ": ", -3, " dB");
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EXPECT_EQ(string.str(), "Vol: -3 dB");
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EXPECT_EQ(string.c_str()[string.size()], '\0');
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}
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TEST(Concat, Characters) {
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EXPECT_EQ(ftl::Concat(u'a', ' ', U'b').str(), "97 98");
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}
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TEST(Concat, References) {
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int i[] = {-1, 2};
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unsigned u = 3;
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EXPECT_EQ(ftl::Concat(i[0], std::as_const(i[1]), u).str(), "-123");
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const bool b = false;
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const char c = 'o';
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EXPECT_EQ(ftl::Concat(b, "tt", c).str(), "falsetto");
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}
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namespace {
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static_assert(ftl::Concat{true, false, true}.str() == "truefalsetrue");
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static_assert(ftl::Concat{':', '-', ')'}.str() == ":-)");
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static_assert(ftl::Concat{"foo"}.str() == "foo");
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static_assert(ftl::Concat{ftl::truncated<3>("foobar")}.str() == "foo");
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constexpr ftl::Concat kConcat{"po", "trz", "ebie"};
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static_assert(kConcat.size() == 9);
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static_assert(kConcat.max_size() == 9);
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static_assert(kConcat.str() == "potrzebie");
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static_assert(kConcat.str() == std::string_view(kConcat.c_str()));
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constexpr auto concat() {
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return ftl::Concat{ftl::truncated<1>("v???"), ftl::truncated<2>("ee??"),
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ftl::truncated<3>("ble?"), ftl::truncated<4>("fetz"),
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ftl::truncated<90>("er")};
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}
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static_assert(concat().size() == 12);
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static_assert(concat().max_size() == 100);
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static_assert(concat().str() == "veeblefetzer");
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static_assert(concat().str() == std::string_view(concat().c_str()));
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} // namespace
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} // namespace android::test
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