Question

我写了下面的代码，尝试测试jquery对话框是否可以原谅和显示。

var jqueryMock = sinon.mock(jQuery);
var dialogExpectation = jqueryMock.expects("dialog");
dialogExpectation.once();

//call my function, in which create a jquery dialog.

equals(dialogExpectation.verify(), true, "Dialog is displayed");
jqueryMock.restore();

然而，它显示了错误：死于测试＃1：尝试将未定义的属性对话框包装为函数 - {“message”：“尝试将未定义的属性对话框包装为函数”，“name”：“TypeError”}

jquery代码非常简单：

displayMessage: function (message, title, hashId) { 

//some logic to build the message, title and hashId.  

 $(messageDiv).dialog({
            height: 240,
            width: 375,
            modal: true,
            title: title,
            resizable: false,
            buttons: [{
                text: localizedErrorMessages['OkText'],
                click: function () {
                    $(this).dialog("close");
                }
            }]             
        }); // end of dialog            
    } // end of displayMessage

在这种情况下，任何人都知道如何模拟jquery对话框并编写单元测试？

Answer 1

你需要像这样模仿jQuery.fn：

var jQueryMock = sinon.mock(jQuery.fn);

Answer 2

我创建了一个jsFiddle来展示工作答案。

function displayMessage(message, title, hashId) { 

     $("#message").dialog(); 
} 

test("dialog was called", function() {

    var jQueryMock = sinon.mock($.fn); // jQuery.fn and $.fn are interchangeable
    var dialogExpectation = jQueryMock.expects("dialog");
    dialogExpectation.once();

    //call my function, in which create a jquery dialog.
    displayMessage("new message", "title", 1);

    equal(dialogExpectation.verify(), true, "Dialog was not displayed");
    jQueryMock.restore();   
});

// This demonstrates a failing test - since the method actuall calls "dialog".
// It also demonstrates a more compact approach to creating the mock
test("toggle was called", function() {

    var mock = sinon.mock(jQuery.fn).expects("toggle").once();
    displayMessage("new message", "title", 1);

    equal(mock.verify(), true, "Toggle was never called");
});

如何显示单元测试jquery对话框？

2 个答案: