我有以下茉莉花测试：
it('should resolve promise',inject(function ($q,$rootScope) {
function getPromise(){
var deferred = $q.defer();
setTimeout(function(){
deferred.resolve(true);
},1000);
return deferred.promise;
}
var p = getPromise();
var cb = jasmine.createSpy();
runs(function(){
expect(cb).not.toHaveBeenCalled();
p.then(cb);
$rootScope.$apply();
});
waitsFor(function(){
return cb.callCount == 1;
});
runs(function(){
expect(cb).toHaveBeenCalled();
$rootScope.$apply();
});
}));
我认为$rootScope.$apply应该解决所有未完成的承诺,但不知怎的,它不会在这个测试中发生.
如何在这样的测试中触发promise解析？请帮忙！
我认为$rootScope.$apply()在你的情况下很快被调用.这应该工作：
function getPromise(){
var deferred = $q.defer();
setTimeout(function(){
deferred.resolve(true);
$rootScope.$apply();
},1000);
return deferred.promise;
}
更新
你可以注入mock $timeout service并使用$timeout.flush()显式解决这个问题.
it('should resolve promise',$timeout,$rootScope) {
function getPromise(){
var deferred = $q.defer();
$timeout(function(){
deferred.resolve(true);
},1000);
return deferred.promise;
}
// ...
$timeout.flush();
// ...