docs: function mockHash( str ) {
  		// It may be a null or empty string.
  		if ( !str )
  			return {};
  
  		var keys = str.split( /\s*,\s*/ ).sort(),
  			obj = {};
  
  		while ( keys.length )
  			obj[ keys.shift() ] = TEST_VALUE;
  
  		return obj;
  	}