cookies.put( "bar_content", "bar" );
headers.put( "Cookie", cookies );
array.add( headers );
array.add( "Hello World!" );
Response response = _rack.createResponse( r, array );
assertNotNull( response );
assertTrue( response.hasBody() );
assertFalse( response.hasException() );
assertEquals( 200, response.getResponseStatus().getCode() );
assertFalse( response.getHeaderNames().isEmpty() );
assertEquals( "Hello World!", response.getBody().toString() );
}