     let tree   = parser.parse(attributedString: fixLambdaTemplate1)
     let result = tree.render(object: fixSimpleLambda1)
     
-    XCTAssertFalse(result.isEmpty)
-    XCTAssertEqual(result, fixSimpleLambda1Result)
+    XCTAssert(result.length > 0)
+    XCTAssertEqual(result.string, fixSimpleLambda1Result)
   }
   
   func testPartialParsing() throws {

    ( "testSimpleMustacheDict", testSimpleMustacheDict ),
    ( "testDictKVC"           , testDictKVC            ),
    ( "testDictNumberKVC"     , testDictNumberKVC      ),
    ( "testTreeRendering"     , testTreeRendering      ),
    ( "testClassKVCRendering" , testClassKVCRendering  ),
    ( "testStructKVCRendering", testStructKVCRendering ),
    ( "testLambda"            , testLambda             ),

    let tree   = parser.parse(attributedString: fixFullNameKVCTemplate1)
    let result = tree.render(object: ["persons": fixUsersClass])
    
    XCTAssertEqual(result.string, fixFullNameKVCResults1)
  }
  
  func testStructKVCRendering() throws {
