tick
Simulates the asynchronous passage of time for the timers in the fakeAsync zone.
Description
The microtasks queue is drained at the very start of this function and after any timer callback has been executed.
Usage notes
Example
describe('this test', () => {
it('looks async but is synchronous', <any>fakeAsync((): void => {
let flag = false;
setTimeout(() => { flag = true; }, 100);
expect(flag).toBe(false);
tick(50);
expect(flag).toBe(false);
tick(50);
expect(flag).toBe(true);
}));
});