2017-02-02 96 views
0

我想用javascript開始單元測試。我使用茉莉花框架2.5.2和Netbeans 8.2作爲我的IDE。單元測試Javascript - 茉莉花測試失敗,雖然代碼正常工作

這是簡單的代碼,我想測試:

var ListHandler = { 

    "reverseList": function (inputList) { 
     var list = inputList, 
      reversedList = [], 
      length = list.length; 

     for (var i = 0; i < length; i++) { 
      reversedList.push(list[length - i - 1]); 
     } 

     return reversedList; 
    }, 

    "sumUp": function (inputList) { 
     var count = 0; 
     for (var i = 0; i < inputList.length; i++) { 
      count += inputList[i]; 
     } 

     return count; 
    }, 

    "concatenate": function (inputList1, inputList2) { 
     var result = inputList1.concat(inputList2); 
     return result; 
    } 
} 

這是我的測試:

describe("List Handler", function(){ 

    it("should return reversed List",function(){ 
     expect(ListHandler.reverseList([1,2,3])).toEqual([3,2,1]); 
    }); 

    it("should return sum of list values",function(){ 
     expect(ListHandler.sumUp([1,2,3])).toEqual(6); 
    }); 

    it("should return concatenated List", function(){ 
     expect(ListHandler.concatenate([1,2],["a","b"]).toEqual([1,2,"a","b"])); 
    }); 
}); 

所以當我運行測試,前兩種方式傳遞,但我得到的錯誤的最後一個方法「concenate」:

TypeError: ListHandler.concatenate(...).toEqual is not a function

然而,當我只需要執行它像alert(ListHandler.concatenate([1,2,5], ["a", "b", "c"]));它活像很好。有人能向我解釋爲什麼茉莉花會抱怨嗎?

回答

1

你有一個錯誤的關閉panthesis。

嘗試;

expect(ListHandler.concatenate([1,2],["a","b"])).toEqual([1,2,"a","b"]);