catch2/include/internal/catch_capture_matchers.h
Phil Nash ee9b19efd3 Moved matcher-based capture macros into their own file
- this file excluded from the CATCH_CONFIG_DISABLE_MATCHERS path.
- matchers are always compiled in to the impl file
- _THROWS_WITH macros are still available with matchers disabled - but only the ones that take a string
- tests that use matchers have #ifdefs, so the whole SelfTest project can compile with matchers disable.
2017-08-09 12:10:14 +01:00

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/*
* Created by Phil on 9/8/2017
* Copyright 2017 Two Blue Cubes Ltd. All rights reserved.
*
* Distributed under the Boost Software License, Version 1.0. (See accompanying
* file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
*/
#ifndef TWOBLUECUBES_CATCH_CAPTURE_MATCHERS_HPP_INCLUDED
#define TWOBLUECUBES_CATCH_CAPTURE_MATCHERS_HPP_INCLUDED
#include "catch_capture.hpp"
#include "catch_matchers.hpp"
#include "catch_matchers_string.h"
namespace Catch {
template<typename ArgT, typename MatcherT>
class MatchExpr : public ITransientExpression {
ArgT const& m_arg;
MatcherT m_matcher;
StringRef m_matcherString;
bool m_result;
public:
MatchExpr( ArgT const& arg, MatcherT const& matcher, StringRef matcherString )
: m_arg( arg ),
m_matcher( matcher ),
m_matcherString( matcherString ),
m_result( matcher.match( arg ) )
{}
auto isBinaryExpression() const -> bool override { return true; }
auto getResult() const -> bool override { return m_result; }
void streamReconstructedExpression( std::ostream &os ) const override {
auto matcherAsString = m_matcher.toString();
os << Catch::Detail::stringify( m_arg ) << ' ';
if( matcherAsString == Detail::unprintableString )
os << m_matcherString.c_str();
else
os << matcherAsString;
}
};
using StringMatcher = Matchers::Impl::MatcherBase<std::string>;
void handleExceptionMatchExpr( AssertionHandler& handler, StringMatcher const& matcher, StringRef matcherString );
template<typename ArgT, typename MatcherT>
auto makeMatchExpr( ArgT const& arg, MatcherT const& matcher, StringRef matcherString ) -> MatchExpr<ArgT, MatcherT> {
return MatchExpr<ArgT, MatcherT>( arg, matcher, matcherString );
}
} // namespace Catch
///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CHECK_THAT( macroName, matcher, resultDisposition, arg ) \
do { \
Catch::AssertionHandler catchAssertionHandler( macroName, CATCH_INTERNAL_LINEINFO, #arg ", " #matcher, resultDisposition ); \
INTERNAL_CATCH_TRY( catchAssertionHandler ) { \
catchAssertionHandler.handle( Catch::makeMatchExpr( arg, matcher, #matcher ) ); \
} INTERNAL_CATCH_CATCH( catchAssertionHandler ) \
INTERNAL_CATCH_REACT( catchAssertionHandler ) \
} while( Catch::alwaysFalse() )
///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_THROWS_MATCHES( macroName, exceptionType, resultDisposition, matcher, ... ) \
do { \
Catch::AssertionHandler catchAssertionHandler( macroName, CATCH_INTERNAL_LINEINFO, #__VA_ARGS__ ", " #exceptionType ", " #matcher, resultDisposition ); \
if( catchAssertionHandler.allowThrows() ) \
try { \
static_cast<void>(__VA_ARGS__ ); \
catchAssertionHandler.handle( Catch::ResultWas::DidntThrowException ); \
} \
catch( exceptionType const& ex ) { \
catchAssertionHandler.handle( Catch::makeMatchExpr( ex, matcher, #matcher ) ); \
} \
catch( ... ) { \
catchAssertionHandler.useActiveException(); \
} \
else \
catchAssertionHandler.handle( Catch::ResultWas::Ok ); \
INTERNAL_CATCH_REACT( catchAssertionHandler ) \
} while( Catch::alwaysFalse() )
#endif // TWOBLUECUBES_CATCH_CAPTURE_MATCHERS_HPP_INCLUDED