噶如何測試這個角碼？

Question

$scope.login = function(){ 

    api.getToken($scope.username, $scope.password, function(){ 

    $scope.loggedIn = true; 

    }); 
}; 

it('should work', function(){ 
    scope.login(); 
    expect(scope.loggedIn).toBe(true); // fails 
}); 

我該如何測試這個功能？對scope.loggedIn的測試失敗，因爲它仍然是false。

Answer 1

如果你的API使得HTTP請求，你可以用$ httpBackend嘲笑HTTP調用 https://docs.angularjs.org/api/ngMock/service/ $ httpBackend

是這樣的：

var $httpBackend; 

beforeEach(inject(function($injector){ 
    $httpBackend = $injector.get('$httpBackend'); 
} 

it('should work', function(){ 

    $httpBackend.expect('POST', 'http://my-api/login').respond(200, { status: "ok" }); 
    scope.login(); 
    $httpBackend.flush(); 
    expect(scope.loggedIn).toBe(true); // fails 
});