Questions tagged [spyon]
116 questions
4
votes
1 answer
Cannot spyOn on a primitive value; undefined given
I am trying to write the unit test case using jest and nest but getting the below error:
In the test case, I am trying to call create credentials method using spyon function but the spyon is itself giving me an error.
DeviceSecretService › should…
sweta singh
- 41
- 1
- 1
- 3
4
votes
2 answers
How jasmine spyOn a generic method
I try to make a spy on a generic method in typescript,
but cannot get Jasmine to recognise it.
I have code
http: HttpClient <- Not proper code, just showing type.
...
this.http.get(url);
where I want to mock the get<...> method.
const…
LosManos
- 7,195
- 6
- 56
- 107
4
votes
1 answer
How to use jest.spyOn function to test a function from another file
I am trying to run test case for testing entry point of my web service jest
I am facing one issue while running the unit test.
Cannot spy the async function, because it is a property not a function.
I am trying to test if the run function is called…
a_uttav
- 41
- 5
4
votes
6 answers
How to unit test / mock a $timeout call?
How do I mock the timeout call, here?
$scope.submitRequest = function () {
var formData = getData();
$scope.form = JSON.parse(formData);
$timeout(function () {
$('#submitForm').click();
}, 2000);
};
I want to…
GC_
- 448
- 4
- 23
3
votes
2 answers
How to test MatDialog is opened using mock in angular unit test
I am currently using a component, in which on button click a pop-up will be opened to greet user. I am using angular Material Dialog for opening pop-up and the component code block which will call on click is
public openMatDialog(): void…
Prem Kumar
- 39
- 1
- 6
3
votes
1 answer
How can I mock multiple different database calls in a unit test with jest?
I am writing a jest unit test for a function that makes multiple different database calls. I am able to mock the first db call just fine but I am having trouble mocking the others.
My function:
const sample = async () => {
const…
John Grayson
- 1,378
- 3
- 17
- 30
3
votes
0 answers
Jest spy on React useRef hook not being used after updating Jest to 24.9
When I used jest 22.4 I had a test like the following
it ('should blah', () => {
const spy = jest.spyOn(React, 'useRef').mockReturnValueOnce(blahMock);
const comp = shallowWithIntl(
Kenzie Revoyr
- 261
- 3
- 7
3
votes
0 answers
Jasmine spyOn fails after moving to Webpack4
Recently I'm migrating a project from webpack 3 -> 4. There's an issue wit karma/jasmine tests. In my test I want to import a TypeScript namespace object and mock it.
spyOn(AlertDialogModule, 'createAlertDialog')
.and.returnValue(
…
c4off
- 185
- 1
- 10
3
votes
1 answer
Jasmine : How to SpyOn a method callback : method.then()
within my Angular 4.0.0 app , i have this method , called in my component.
This method is called within a service :
this.myService.myMethod(param).then(any => {
console.log("success case")
})
.catch(error => {
…
firasKoubaa
- 6,439
- 25
- 79
- 148
3
votes
1 answer
Angularjs: mock location.path() with spyOn for a unit test
I have already read this post (and others) but I don't manage to make this simple unit test work. I'm using the version 2 of Jasmine.
My factory is very simple:
angular.module('myApp')
.factory('detectPath', function ($location, $rootScope) {
…
Simon
- 6,025
- 7
- 46
- 98
3
votes
1 answer
How to spyOn Angular provider factory method?
In Jasmine, you can spyOn(object, 'function').
I am trying to spyOn a provider, which is used as "provider()".
How to spyOn it?
The provider looks like this:
providers.provider('telecom', function() {
this.$get = function() {
return…
Kyle Xie
- 722
- 1
- 8
- 28
3
votes
1 answer
Jasmine test using spyon with $httpBackend not working
I am trying to write a jasmine test on some javascript using spyon over a method that uses $http. I have mocked this out using $httpBackend and unfortunately the spy doesn't seem to be picking up the fact the method has indeed been called post $http…
sarin
- 5,227
- 3
- 34
- 63
2
votes
2 answers
Mocking Nested function calls in Jasmine
I am currently trying to test my typescript functions using Jasmine:
//AB.ts
export async function A() {
}
export async function B() {
A();
}
I am trying to unit test the function B by mocking out A. I want to see if A is called. Here is what…
Sean
- 592
- 4
- 9
- 19
2
votes
2 answers
Jest unit test to spy on lower-level method (NodeJS)
Trying to spy and override a function two levels down using Jest.
The test results say, "Expected mock function to have been called, but it was not called."
// mail/index.unit.test.js
import mail from './index';
import * as sib from…
nstuyvesant
- 1,392
- 2
- 18
- 43
2
votes
0 answers
Ability to set up multiple spies on the same method
We are trying to do unit testing with Jasmine to isolate a method or component that we need to test and see how it behaves under a variety of circumstances.
return Promise.resolve(referenceObject()) //afraid this might execute out of order so…
Balachander
- 430
- 1
- 3
- 15