tick
Simulates the asynchronous passage of time for the timers in the fakeAsync zone.
tick(millis: number = 0, tickOptions: { processNewMacroTasksSynchronously: boolean; } = {
processNewMacroTasksSynchronously: true
}): void
参数
millis | number | 可选. 默认值是 |
tickOptions | object | 可选. 默认值是 |
返回值
void
说明
The microtasks queue is drained at the very start of this function and after any timer callback has been executed.
使用说明
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);
}));
});
