该指令如下：

<div ng-controller="parentController">

        {{username}}
<!-- the directive -- > 
        <form-field label="Username:" regex="someRegex" constrainsViolationMessage="someValidationMessage" model="username" place-holder="some input value">
        </form-field>
    </div>

现在,我想测试指令范围和父范围之间的数据绑定.

测试是：

it("should bind input field to the scope variable provided by parent scope ! ",function () {
        var formInput = ele.find('.form-input');
        formInput.val("some input");
        expect(ele.find('p').text()).toEqual('some input');
    });

这个问题是我不知道为什么测试不通过,即使指令正常工作. Here is a fiddle of the directive.

这里是整个测试和测试设置.

var formsModule = angular.module('forms',[]);

formsModule.controller('parentController',function ($scope) {
});


formsModule.directive('formField',function () {

    var label;
    var constrainsViolationMessage;
    var placeHolder;
    var model;


    return {
        restrict:'E',transclude:true,replace:false,scope:{
            model:'='
        },link:function (scope,element,attr) {

            console.log("link function is executed .... ");

            scope.$watch('formInput',function (newValue,oldValue) {
                console.log("watch function is executed .... !")
                scope.model = newValue;
            });
            scope.label = attr.label;
        },template:'<div class="control-group ">' +

            '<div class="form-label control-label">{{label}}</div> ' +

            '<div class="controls controls-row"> ' +

            '<input type="text" size="15" class="form-input input-medium" ng-model="formInput"  placeholder="{{placeHolder}}">' +

            '<label class="error" ng-show={{hasViolationConstrain}}>{{constrainsViolationMessage}}</label>' +

            '</div>'
    }
});


beforeEach(module('forms'));

var ele;

var linkingFunction;

var elementBody;


var scope;
var text = "";
var placeHolder = "filed place holder";
var label = "someLabel";
var regex = "^[a-z]{5}$";


beforeEach(inject(function ($compile,$rootScope) {

        scope = $rootScope;


        elementBody = angular.element('<div ng-controller="parentController">' +
            '<p>{{username}}</p>' +
            '<form-field label="Username:" regex="someRegex" constrainsViolationMessage="someValidationMessage" model="username" place-holder="some input value"> </form-field>');

        ele = $compile(elementBody)(scope);
        scope.$digest();
    }
));


afterEach(function () {
    scope.$destroy();
});


iit("should bind input field to the scope variable provided by parent scope ! ",function () {
    var formInput = ele.find('.form-input');
    formInput.val("some input");
    expect(ele.find('p').text()).toEqual('some input');
});

如您所见,我想声明,表单输入反映在由父范围提供的“模型”属性中设置的范围变量中.

我在这里遗漏了什么吗？
感谢帮助我…！