mirror of https://github.com/catchorg/Catch2.git
78 lines
2.4 KiB
C++
78 lines
2.4 KiB
C++
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// Copyright Catch2 Authors
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE.txt or copy at
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// https://www.boost.org/LICENSE_1_0.txt)
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// SPDX-License-Identifier: BSL-1.0
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/**\file
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* Registers an event listener to increments counter of assertionStarting events.
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*
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* Different assertion macros then check that the counter is at expected
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* value when they are evaluated.
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*/
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#include <catch2/catch_test_macros.hpp>
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#include <catch2/reporters/catch_reporter_event_listener.hpp>
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#include <catch2/reporters/catch_reporter_registrars.hpp>
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#include <catch2/matchers/catch_matchers_predicate.hpp>
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namespace {
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static size_t assertion_starting_events_seen = 0;
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class AssertionStartingListener : public Catch::EventListenerBase {
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public:
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AssertionStartingListener( Catch::IConfig const* config ):
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EventListenerBase( config ) {}
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void assertionStarting( Catch::AssertionInfo const& ) override {
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++assertion_starting_events_seen;
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}
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};
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static bool f1() {
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return assertion_starting_events_seen == 1;
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}
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static void f2() {
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if ( assertion_starting_events_seen != 2 ) { throw 1; }
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}
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static void f3() {
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if ( assertion_starting_events_seen == 3 ) { throw 1; }
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}
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static bool f4() { return assertion_starting_events_seen == 4; }
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static void f5() { throw assertion_starting_events_seen; }
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} // anonymous namespace
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CATCH_REGISTER_LISTENER( AssertionStartingListener )
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TEST_CASE() {
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// **IMPORTANT**
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// The order of assertions below matters.
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REQUIRE( f1() );
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REQUIRE_NOTHROW( f2() );
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REQUIRE_THROWS( f3() );
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REQUIRE_THAT( f4(),
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Catch::Matchers::Predicate<bool>( []( bool b ) { return b; } ) );
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REQUIRE_THROWS_MATCHES(
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f5(), size_t, Catch::Matchers::Predicate<size_t>( []( size_t i ) {
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return i == 5;
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} ) );
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CAPTURE( assertion_starting_events_seen ); // **not** an assertion
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INFO( "some info msg" ); // **not** an assertion
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WARN( "warning! warning!" ); // assertion-like message
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SUCCEED(); // assertion-like message
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// We skip FAIL/SKIP and so on, which fail the test.
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// This require will also increment the count once
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REQUIRE( assertion_starting_events_seen == 8 );
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}
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