mirror of
https://github.com/catchorg/Catch2.git
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327 lines
12 KiB
C++
327 lines
12 KiB
C++
/*
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* Created by Phil Nash on 04/03/2012.
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* Copyright (c) 2012 Two Blue Cubes Ltd. All rights reserved.
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*
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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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#ifndef TWOBLUECUBES_CATCH_MATCHERS_HPP_INCLUDED
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#define TWOBLUECUBES_CATCH_MATCHERS_HPP_INCLUDED
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namespace Catch {
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namespace Matchers {
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namespace Impl {
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namespace Generic {
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template<typename ExpressionT> class AllOf;
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template<typename ExpressionT> class AnyOf;
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template<typename ExpressionT> class Not;
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}
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template<typename ExpressionT>
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struct Matcher : SharedImpl<IShared>
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{
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typedef ExpressionT ExpressionType;
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virtual ~Matcher() {}
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virtual Ptr<Matcher> clone() const = 0;
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virtual bool match( ExpressionT const& expr ) const = 0;
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virtual std::string toString() const = 0;
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Generic::AllOf<ExpressionT> operator && ( Matcher<ExpressionT> const& other ) const;
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Generic::AnyOf<ExpressionT> operator || ( Matcher<ExpressionT> const& other ) const;
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Generic::Not<ExpressionT> operator ! () const;
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};
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template<typename DerivedT, typename ExpressionT>
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struct MatcherImpl : Matcher<ExpressionT> {
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virtual Ptr<Matcher<ExpressionT> > clone() const {
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return Ptr<Matcher<ExpressionT> >( new DerivedT( static_cast<DerivedT const&>( *this ) ) );
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}
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};
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namespace Generic {
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template<typename ExpressionT>
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class Not : public MatcherImpl<Not<ExpressionT>, ExpressionT> {
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public:
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explicit Not( Matcher<ExpressionT> const& matcher ) : m_matcher(matcher.clone()) {}
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Not( Not const& other ) : m_matcher( other.m_matcher ) {}
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virtual bool match( ExpressionT const& expr ) const CATCH_OVERRIDE {
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return !m_matcher->match( expr );
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}
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virtual std::string toString() const CATCH_OVERRIDE {
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return "not " + m_matcher->toString();
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}
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private:
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Ptr< Matcher<ExpressionT> > m_matcher;
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};
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template<typename ExpressionT>
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class AllOf : public MatcherImpl<AllOf<ExpressionT>, ExpressionT> {
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public:
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AllOf() {}
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AllOf( AllOf const& other ) : m_matchers( other.m_matchers ) {}
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AllOf& add( Matcher<ExpressionT> const& matcher ) {
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m_matchers.push_back( matcher.clone() );
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return *this;
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}
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virtual bool match( ExpressionT const& expr ) const
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{
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for( std::size_t i = 0; i < m_matchers.size(); ++i )
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if( !m_matchers[i]->match( expr ) )
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return false;
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return true;
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}
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virtual std::string toString() const {
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std::ostringstream oss;
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oss << "( ";
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for( std::size_t i = 0; i < m_matchers.size(); ++i ) {
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if( i != 0 )
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oss << " and ";
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oss << m_matchers[i]->toString();
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}
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oss << " )";
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return oss.str();
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}
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AllOf operator && ( Matcher<ExpressionT> const& other ) const {
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AllOf allOfExpr( *this );
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allOfExpr.add( other );
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return allOfExpr;
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}
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private:
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std::vector<Ptr<Matcher<ExpressionT> > > m_matchers;
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};
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template<typename ExpressionT>
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class AnyOf : public MatcherImpl<AnyOf<ExpressionT>, ExpressionT> {
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public:
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AnyOf() {}
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AnyOf( AnyOf const& other ) : m_matchers( other.m_matchers ) {}
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AnyOf& add( Matcher<ExpressionT> const& matcher ) {
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m_matchers.push_back( matcher.clone() );
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return *this;
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}
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virtual bool match( ExpressionT const& expr ) const
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{
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for( std::size_t i = 0; i < m_matchers.size(); ++i )
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if( m_matchers[i]->match( expr ) )
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return true;
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return false;
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}
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virtual std::string toString() const {
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std::ostringstream oss;
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oss << "( ";
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for( std::size_t i = 0; i < m_matchers.size(); ++i ) {
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if( i != 0 )
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oss << " or ";
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oss << m_matchers[i]->toString();
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}
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oss << " )";
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return oss.str();
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}
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AnyOf operator || ( Matcher<ExpressionT> const& other ) const {
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AnyOf anyOfExpr( *this );
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anyOfExpr.add( other );
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return anyOfExpr;
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}
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private:
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std::vector<Ptr<Matcher<ExpressionT> > > m_matchers;
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};
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} // namespace Generic
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template<typename ExpressionT>
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Generic::AllOf<ExpressionT> Matcher<ExpressionT>::operator && ( Matcher<ExpressionT> const& other ) const {
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Generic::AllOf<ExpressionT> allOfExpr;
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allOfExpr.add( *this );
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allOfExpr.add( other );
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return allOfExpr;
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}
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template<typename ExpressionT>
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Generic::AnyOf<ExpressionT> Matcher<ExpressionT>::operator || ( Matcher<ExpressionT> const& other ) const {
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Generic::AnyOf<ExpressionT> anyOfExpr;
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anyOfExpr.add( *this );
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anyOfExpr.add( other );
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return anyOfExpr;
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}
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template<typename ExpressionT>
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Generic::Not<ExpressionT> Matcher<ExpressionT>::operator ! () const {
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return Generic::Not<ExpressionT>( *this );
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}
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namespace StdString {
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inline std::string makeString( std::string const& str ) { return str; }
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inline std::string makeString( const char* str ) { return str ? std::string( str ) : std::string(); }
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struct CasedString
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{
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CasedString( std::string const& str, CaseSensitive::Choice caseSensitivity )
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: m_caseSensitivity( caseSensitivity ),
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m_str( adjustString( str ) )
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{}
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std::string adjustString( std::string const& str ) const {
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return m_caseSensitivity == CaseSensitive::No
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? toLower( str )
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: str;
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}
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std::string toStringSuffix() const
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{
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return m_caseSensitivity == CaseSensitive::No
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? " (case insensitive)"
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: "";
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}
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CaseSensitive::Choice m_caseSensitivity;
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std::string m_str;
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};
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struct Equals : MatcherImpl<Equals, std::string> {
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Equals( std::string const& str, CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes )
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: m_data( str, caseSensitivity )
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{}
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Equals( Equals const& other ) : m_data( other.m_data ){}
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virtual ~Equals();
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virtual bool match( std::string const& expr ) const {
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return m_data.m_str == m_data.adjustString( expr );;
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}
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virtual std::string toString() const {
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return "equals: \"" + m_data.m_str + "\"" + m_data.toStringSuffix();
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}
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CasedString m_data;
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};
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struct Contains : MatcherImpl<Contains, std::string> {
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Contains( std::string const& substr, CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes )
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: m_data( substr, caseSensitivity ){}
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Contains( Contains const& other ) : m_data( other.m_data ){}
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virtual ~Contains();
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virtual bool match( std::string const& expr ) const {
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return m_data.adjustString( expr ).find( m_data.m_str ) != std::string::npos;
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}
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virtual std::string toString() const {
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return "contains: \"" + m_data.m_str + "\"" + m_data.toStringSuffix();
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}
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CasedString m_data;
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};
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struct StartsWith : MatcherImpl<StartsWith, std::string> {
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StartsWith( std::string const& substr, CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes )
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: m_data( substr, caseSensitivity ){}
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StartsWith( StartsWith const& other ) : m_data( other.m_data ){}
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virtual ~StartsWith();
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virtual bool match( std::string const& expr ) const {
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return m_data.adjustString( expr ).find( m_data.m_str ) == 0;
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}
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virtual std::string toString() const {
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return "starts with: \"" + m_data.m_str + "\"" + m_data.toStringSuffix();
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}
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CasedString m_data;
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};
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struct EndsWith : MatcherImpl<EndsWith, std::string> {
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EndsWith( std::string const& substr, CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes )
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: m_data( substr, caseSensitivity ){}
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EndsWith( EndsWith const& other ) : m_data( other.m_data ){}
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virtual ~EndsWith();
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virtual bool match( std::string const& expr ) const {
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return m_data.adjustString( expr ).find( m_data.m_str ) == expr.size() - m_data.m_str.size();
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}
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virtual std::string toString() const {
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return "ends with: \"" + m_data.m_str + "\"" + m_data.toStringSuffix();
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}
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CasedString m_data;
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};
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} // namespace StdString
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} // namespace Impl
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// The following functions create the actual matcher objects.
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// This allows the types to be inferred
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template<typename ExpressionT>
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inline Impl::Generic::Not<ExpressionT> Not( Impl::Matcher<ExpressionT> const& m ) {
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return Impl::Generic::Not<ExpressionT>( m );
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}
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template<typename ExpressionT>
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inline Impl::Generic::AllOf<ExpressionT> AllOf( Impl::Matcher<ExpressionT> const& m1,
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Impl::Matcher<ExpressionT> const& m2 ) {
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return Impl::Generic::AllOf<ExpressionT>().add( m1 ).add( m2 );
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}
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template<typename ExpressionT>
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inline Impl::Generic::AllOf<ExpressionT> AllOf( Impl::Matcher<ExpressionT> const& m1,
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Impl::Matcher<ExpressionT> const& m2,
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Impl::Matcher<ExpressionT> const& m3 ) {
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return Impl::Generic::AllOf<ExpressionT>().add( m1 ).add( m2 ).add( m3 );
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}
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template<typename ExpressionT>
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inline Impl::Generic::AnyOf<ExpressionT> AnyOf( Impl::Matcher<ExpressionT> const& m1,
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Impl::Matcher<ExpressionT> const& m2 ) {
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return Impl::Generic::AnyOf<ExpressionT>().add( m1 ).add( m2 );
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}
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template<typename ExpressionT>
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inline Impl::Generic::AnyOf<ExpressionT> AnyOf( Impl::Matcher<ExpressionT> const& m1,
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Impl::Matcher<ExpressionT> const& m2,
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Impl::Matcher<ExpressionT> const& m3 ) {
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return Impl::Generic::AnyOf<ExpressionT>().add( m1 ).add( m2 ).add( m3 );
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}
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inline Impl::StdString::Equals Equals( std::string const& str, CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes ) {
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return Impl::StdString::Equals( str, caseSensitivity );
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}
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inline Impl::StdString::Equals Equals( const char* str, CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes ) {
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return Impl::StdString::Equals( Impl::StdString::makeString( str ), caseSensitivity );
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}
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inline Impl::StdString::Contains Contains( std::string const& substr, CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes ) {
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return Impl::StdString::Contains( substr, caseSensitivity );
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}
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inline Impl::StdString::Contains Contains( const char* substr, CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes ) {
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return Impl::StdString::Contains( Impl::StdString::makeString( substr ), caseSensitivity );
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}
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inline Impl::StdString::StartsWith StartsWith( std::string const& substr ) {
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return Impl::StdString::StartsWith( substr );
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}
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inline Impl::StdString::StartsWith StartsWith( const char* substr ) {
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return Impl::StdString::StartsWith( Impl::StdString::makeString( substr ) );
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}
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inline Impl::StdString::EndsWith EndsWith( std::string const& substr ) {
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return Impl::StdString::EndsWith( substr );
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}
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inline Impl::StdString::EndsWith EndsWith( const char* substr ) {
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return Impl::StdString::EndsWith( Impl::StdString::makeString( substr ) );
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}
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} // namespace Matchers
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using namespace Matchers;
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} // namespace Catch
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#endif // TWOBLUECUBES_CATCH_MATCHERS_HPP_INCLUDED
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