Having issues with Promise.resolve() not functioning as expected in a Jasmine test

I am currently working on setting up a test that involves promises. Below is the code snippet for reference:

var promise;

beforeEach(inject(function ($q) {
    promise = $q.resolve();
}));

it('should resolve', function (done) {
    promise.then(function () {
        expect(true).toBeTruthy();
        done();
    });
});

However, when I try to run this code, it results in a TIMEOUT error.

Error: Timeout - Async callback was not invoked within timeout specified by jasmine.DEFAULT_TIMEOUT_INTERVAL.

I am puzzled as to why the promise does not execute the callback provided to then.

Any insights or suggestions would be greatly appreciated!

Answer №1

In order to resolve promises, it is essential to invoke the $digest method on scope/rootScope. Therefore, the correct approach would be:

var resolved = false;
promise.then(function() { resolved = true;});
$rootScope.$digest();
expect(resolved).toBeTruthy();

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