我正在使用AngularJS,Karma,Mocha,Chai,Chai-as-promise,Sinon.
我正在尝试下面的控制器.我无法模拟服务User并测试控制器中的.then()部分.
控制器代码
.controller('SignupPhoneCtrl',function(User,$scope) {
$scope.sendPhoneNumber = function(countryCode,phoneNumber){
User.sendPhoneNumber(countryCode,phoneNumber)
.then(function(result){
if(result == "success"){
//I WANT TO TEST THIS SECTION
return "success";
}
//I WANT TO TEST THIS SECTION
return "fail";
});
}
})
ControllerTest代码
describe('Controller: Signup-phone',function() {
var scope;
var UserMock;
var SignupPhoneCtrl;
beforeEach(function() {
module('starter.controllers');
});
beforeEach(inject(function($rootScope,$controller,$q){
scope = $rootScope.$new();
UserMock = {
sendPhoneNumber: function(countryCode,phoneNumber){
var deferred = $q.defer();
// console.log("called"); //This part is being called
deferred.resolve('foo');
return deferred.promise;
}
};
SignupPhoneCtrl = $controller("SignupPhoneCtrl",{$scope: scope,User: UserMock});
}))
it('should return asdf',function(){
scope.$digest();
//WHAT SHOULD I WRITE HERE?
})
});
我已尝试过以下但断言部分未被调用.
scope.sendPhoneNumber(12,53452123).then(function(result){
result.should.equal("fail"); //THIS SECTION IS NOT CALLED
})
我尝试了下面的内容,但它给出了错误：’undefined’不是一个函数(评估’promise.then.bind(promise)’
scope.sendPhoneNumber(12,53452123).should.eventually.equal("fail");
sendPhoneNumber(12,53452123)返回Object {$$state：Object {status：0}}
我试图添加sinon.spy(UserMock,’sendPhoneNumber’),但它没有任何区别.
解决方法
问题是,$scope.sendPhoneNumber不返回任何内容.尝试
return User.sendPhoneNumber(...
在你的控制器方法.
此外,如果你只是想立即解决你的模拟中的承诺,我发现这很好用,并节省你设置一个延迟对象
UserMock = {
sendPhoneNumber: function(countryCode,phoneNumber){
return $q.when('foo');
}
};
话虽这么说,你可能希望能够控制每个测试中的解析值,这样更有意义……
var scope;
var UserMock;
var SignupPhoneCtrl;
var deferred;
// snip
inject(function($rootScope,$q) {
deferred = $q.defer();
UserMock = {
sendPhoneNumber: function() {
return deferred.promise;
}
};
});
// snip
it('tests for success',inject(function($rootScope) {
deferred.resolve('success');
scope.sendPhoneNumber(...).then(...);
$rootScope.$apply();
}));
it('tests for failure',inject(function($rootScope) {
deferred.resolve('not success');
scope.sendPhoneNumber(...).then(...);
$rootScope.$apply();
}));
