Added a handful of "built-in" matchers

include/internal/catch_matchers.hpp

@@ -0,0 +1,86 @@
+//
+//  catch_matchers.hpp
+//  CatchSelfTest
+//
+//  Created by Phil Nash on 04/03/2012.
+//  Copyright (c) 2012 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_MATCHERS_HPP_INCLUDED
+#define TWOBLUECUBES_CATCH_MATCHERS_HPP_INCLUDED
+
+namespace Catch
+{
+namespace Matchers
+{
+    namespace Impl
+    {
+    namespace StdString
+    {
+        struct Contains
+        {
+            Contains( const std::string& substr ) : m_substr( substr ){}
+            
+            bool operator()( const std::string& str ) const
+            {
+                return str.find( m_substr ) != std::string::npos;
+            }
+            
+            friend std::ostream& operator<<( std::ostream& os, const Contains& matcher )
+            {
+                os << "contains: \"" << matcher.m_substr << "\"";
+                return os;
+            }
+            std::string m_substr;
+        };
+        
+        struct StartsWith
+        {
+            StartsWith( const std::string& substr ) : m_substr( substr ){}
+            
+            bool operator()( const std::string& str ) const
+            {
+                return str.find( m_substr ) == 0;
+            }
+            
+            friend std::ostream& operator<<( std::ostream& os, const StartsWith& matcher )
+            {
+                os << "starts with: \"" << matcher.m_substr << "\"";
+                return os;
+            }
+            std::string m_substr;
+        };
+        
+        struct EndsWith
+        {
+            EndsWith( const std::string& substr ) : m_substr( substr ){}
+            
+            bool operator()( const std::string& str ) const
+            {
+                return str.find( m_substr ) == str.size() - m_substr.size();
+            }
+            
+            friend std::ostream& operator<<( std::ostream& os, const EndsWith& matcher )
+            {
+                os << "ends with: \"" << matcher.m_substr << "\"";
+                return os;
+            }
+            std::string m_substr;
+        };
+    } // namespace StdString
+    } // namespace Impl
+    
+    inline Impl::StdString::Contains    Contains( const std::string& substr ){ return Impl::StdString::Contains( substr ); }
+    inline Impl::StdString::StartsWith  StartsWith( const std::string& substr ){ return Impl::StdString::StartsWith( substr ); }
+    inline Impl::StdString::EndsWith    EndsWith( const std::string& substr ){ return Impl::StdString::EndsWith( substr ); }
+    
+} // namespace Matchers
+    
+using namespace Matchers;
+    
+} // namespace Catch
+
+#endif // TWOBLUECUBES_CATCH_MATCHERS_HPP_INCLUDED