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* Migrate to Catch2 * Enable colors in Catch2 * CI: Cache Catch2 * Remove unused variable * Supply compiler flags to `Catch2WithMain` * CI: Fix Catch2 cache * Fix styling
44 lines
1.3 KiB
C++
44 lines
1.3 KiB
C++
/*=============================================================================
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Copyright (c) 2001-2015 Joel de Guzman
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Copyright (c) 2025 Nana Sakisaka
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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=============================================================================*/
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#include "test.hpp"
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#include <boost/spirit/x4/auxiliary/eps.hpp>
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#include <boost/spirit/x4/operator/not_predicate.hpp>
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TEST_CASE("eps")
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{
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using x4::eps;
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{
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BOOST_SPIRIT_X4_ASSERT_CONSTEXPR_CTORS(eps);
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CHECK(parse("", eps));
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CHECK(parse("xxx", eps).is_partial_match());
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CHECK(!parse("", !eps));
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}
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{
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// test non-lazy semantic predicate
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BOOST_SPIRIT_X4_ASSERT_CONSTEXPR_CTORS(eps(true));
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CHECK(parse("", eps(true)));
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CHECK(!parse("", eps(false)));
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CHECK(parse("", !eps(false)));
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}
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{
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// test lazy semantic predicate
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constexpr auto true_fn = [] { return true; };
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constexpr auto false_Fn = [] { return false; };
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BOOST_SPIRIT_X4_ASSERT_CONSTEXPR_CTORS(eps(std::true_type{}));
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CHECK(parse("", eps(true_fn)));
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CHECK(!parse("", eps(false_Fn)));
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CHECK(parse("", !eps(false_Fn)));
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}
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}
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