在 Angular js 单元测试中,我想为每个测试设置 xhr 响应(在“it”方法中),而不是在 beforeEach 方法中,但它似乎不起作用。?
这有效
describe('ExampleListCtrl', function(){
var $scope, $httpBackend;
beforeEach(inject(function(_$httpBackend_, $rootScope, $controller) {
$httpBackend = _$httpBackend_;
$httpBackend.expectGET('examples').respond([]); // <--- THIS ONE
$controller(ExampleListCtrl, {$scope: $scope = $rootScope.$new()});
}));
it('should create "examples" with 0 example fetched', function() {
expect($scope.examples).toBeUndefined();
$httpBackend.flush();
expect($scope.examples).toEqual([]);
});
});
结果
Executed 8 of 8 SUCCESS (0.366 secs / 0.043 secs)
但是当我将 expectGet 方法移动到每个方法时,这会失败并出现错误。我不知道为什么。
describe('ExampleListCtrl', function(){
var $scope, $httpBackend;
beforeEach(inject(function(_$httpBackend_, $rootScope, $controller) {
$httpBackend = _$httpBackend_;
$controller(ExampleListCtrl, {$scope: $scope = $rootScope.$new()});
}));
it('should create "examples" with 0 example fetched', function() {
$httpBackend.expectGET('examples').respond([]); // <--- MOVED TO HERE
expect($scope.examples).toBeUndefined();
$httpBackend.flush();
expect($scope.examples).toEqual([]);
});
});
这是错误
....
at /Users/me/app/test/unit/controllers/ExampleListCtrlSpec.js:3:1
Error: No pending request to flush
at Error (<anonymous>)
at Function.$httpBackend.flush (/Users/me/app/test/lib/angular/angular-mocks.js:1171:34)
at null.<anonymous> (/Users/me/app/test/unit/controllers/ExampleListCtrlSpec.js:14:18)
----已编辑----
按照下面的建议,我将控制器从 beforeEach 中移出,并像这样更改了测试,以便我可以多次测试 $httpBackend.expectGET。
describe('ExampleListCtrl', function(){
var $scope, $rootScope, $httpBackend;
beforeEach(inject(function(_$httpBackend_, $rootScope, $controller) {
$httpBackend = _$httpBackend_;
controller = $controller;
$scope = $rootScope.$new();
}));
it('should create "examples" model with 0 example fetched from xhr', function() {
$httpBackend.expectGET('examples').respond([]);
controller(ExampleListCtrl, {$scope: $scope});
$httpBackend.flush();
expect($scope.examples).toEqual([]);
});
});