单元测试观察家的角度JS控制器 [英] Unit testing watchers in angular js controller

问题描述

这个片段code怎么能单位利用茉莉测试？

How can this snippet code be unit tested using jasmine ?

    $scope.profileObject = ProfilesSharedObject;

$scope.$watch("profileObject.startDate", function() {
    var startDate = $scope.profileObject.startDate._d;
    var endDate = $scope.profileObject.endDate._d;

    var newStartDate = moment(startDate).format("YYYY-MM-DD");
    var newEndDate = moment(endDate).format("YYYY-MM-DD");

    $scope.startDate = moment(startDate).format("MM/DD");
    $scope.endDate = moment(endDate).format("MM/DD/YYYY");

    $scope.getSleepData(newStartDate, newEndDate);
});

其中P​​rofileSharedObject是一个棱角分明的js服务

where ProfileSharedObject is a angular js service

推荐答案

手表监听器在每个周期消化评价。通常出现这种情况自动的，但在单元测试，您需要手动触发它：

Watch listeners are evaluated at every digest cycle. Usually that happens automagically, but while unit testing you need to manually trigger it:

it('should update the start date', function() {
    // Arrange
    ProfileSharedObjectMock.startDate = new Date(2013, 0, 1);

    // Act
    $scope.$digest();

    // Assert
    expect($scope.startDate).toEqual(new Date(2013, 0, 1));
  });

我创建了一个 Plunker脚本的，所以你可以看到整个测试套件的工作。

I've created a Plunker script so you can see the whole test suite working.

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