Function ContainsSubstring

extras/catch_amalgamated.cpp:9047–9049

        return StringEqualsMatcher( CasedString( str, caseSensitivity) );
    }
    StringContainsMatcher ContainsSubstring( std::string const& str, CaseSensitive caseSensitivity ) {
        return StringContainsMatcher( CasedString( str, caseSensitivity) );
    }
    EndsWithMatcher EndsWith( std::string const& str, CaseSensitive caseSensitivity ) {
        return EndsWithMatcher( CasedString( str, caseSensitivity) );
    }