catch2/tests/SelfTest/UsageTests/ToStringOptional.tests.cpp

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// Copyright Catch2 Authors
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE.txt or copy at
// https://www.boost.org/LICENSE_1_0.txt)
// SPDX-License-Identifier: BSL-1.0
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#define CATCH_CONFIG_ENABLE_OPTIONAL_STRINGMAKER
#include <catch2/catch_test_macros.hpp>
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#if defined(CATCH_CONFIG_CPP17_OPTIONAL)
TEST_CASE( "std::optional<int> -> toString", "[toString][optional][approvals]" ) {
using type = std::optional<int>;
REQUIRE( "{ }" == ::Catch::Detail::stringify( type{} ) );
REQUIRE( "0" == ::Catch::Detail::stringify( type{ 0 } ) );
}
TEST_CASE( "std::optional<std::string> -> toString", "[toString][optional][approvals]" ) {
using type = std::optional<std::string>;
REQUIRE( "{ }" == ::Catch::Detail::stringify( type{} ) );
REQUIRE( "\"abc\"" == ::Catch::Detail::stringify( type{ "abc" } ) );
}
TEST_CASE( "std::vector<std::optional<int> > -> toString", "[toString][optional][approvals]" ) {
using type = std::vector<std::optional<int> >;
REQUIRE( "{ 0, { }, 2 }" == ::Catch::Detail::stringify( type{ 0, {}, 2 } ) );
}
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TEST_CASE( "std::nullopt -> toString", "[toString][optional][approvals]" ) {
REQUIRE( "{ }" == ::Catch::Detail::stringify( std::nullopt ) );
}
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#endif // CATCH_INTERNAL_CONFIG_CPP17_OPTIONAL