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Added &&, || and ! operator overloads for matchers

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(syntactic sugar for AllOf, AnyOf and Not compositional matchers, respectively)
This commit is contained in:
Phil Nash
2015-11-05 18:46:00 +00:00
parent f3e7722cc6
commit 054e3c5b43
6 changed files with 286 additions and 8 deletions
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47
include/internal/catch_matchers.hpp
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@@ -12,6 +12,12 @@ namespace Catch {
namespace Matchers {
namespace Impl {
namespace Generic {
template<typename ExpressionT> class AllOf;
template<typename ExpressionT> class AnyOf;
template<typename ExpressionT> class Not;
}
template<typename ExpressionT>
struct Matcher : SharedImpl<IShared>
{
@@ -21,6 +27,10 @@ namespace Matchers {
virtual Ptr<Matcher> clone() const = 0;
virtual bool match( ExpressionT const& expr ) const = 0;
virtual std::string toString() const = 0;
Generic::AllOf<ExpressionT> operator && ( Matcher<ExpressionT> const& other ) const;
Generic::AnyOf<ExpressionT> operator || ( Matcher<ExpressionT> const& other ) const;
Generic::Not<ExpressionT> operator ! () const;
};
template<typename DerivedT, typename ExpressionT>
@@ -34,7 +44,7 @@ namespace Matchers {
namespace Generic {
template<typename ExpressionT>
struct Not : public MatcherImpl<Not<ExpressionT>, ExpressionT> {
Not( Matcher<ExpressionT> const& matcher ) : m_matcher(matcher.clone()) {}
explicit Not( Matcher<ExpressionT> const& matcher ) : m_matcher(matcher.clone()) {}
Not( Not const& other ) : m_matcher( other.m_matcher ) {}
virtual bool match( ExpressionT const& expr ) const CATCH_OVERRIDE {
@@ -78,6 +88,12 @@ namespace Matchers {
return oss.str();
}
AllOf operator && ( Matcher<ExpressionT> const& other ) const {
AllOf allOfExpr( *this );
allOfExpr.add( other );
return allOfExpr;
}
private:
std::vector<Ptr<Matcher<ExpressionT> > > m_matchers;
};
@@ -112,11 +128,40 @@ namespace Matchers {
return oss.str();
}
AnyOf operator || ( Matcher<ExpressionT> const& other ) const {
AnyOf anyOfExpr( *this );
anyOfExpr.add( other );
return anyOfExpr;
}
private:
std::vector<Ptr<Matcher<ExpressionT> > > m_matchers;
};
} // namespace Generic
template<typename ExpressionT>
Generic::AllOf<ExpressionT> Matcher<ExpressionT>::operator && ( Matcher<ExpressionT> const& other ) const {
Generic::AllOf<ExpressionT> allOfExpr;
allOfExpr.add( *this );
allOfExpr.add( other );
return allOfExpr;
}
template<typename ExpressionT>
Generic::AnyOf<ExpressionT> Matcher<ExpressionT>::operator || ( Matcher<ExpressionT> const& other ) const {
Generic::AnyOf<ExpressionT> anyOfExpr;
anyOfExpr.add( *this );
anyOfExpr.add( other );
return anyOfExpr;
}
template<typename ExpressionT>
Generic::Not<ExpressionT> Matcher<ExpressionT>::operator ! () const {
return Generic::Not<ExpressionT>( *this );
}
namespace StdString {
inline std::string makeString( std::string const& str ) { return str; }