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API > @angular/core > @angular/core/testing

waitForAsync

Wraps a test function in an asynchronous test zone. The test will automatically complete when all asynchronous calls within this zone are done. Can be used to wrap an inject call.

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      waitForAsync(fn: Function): (done: any) => any
Parameters
fn Function
Returns

(done: any) => any

Description

Example:

      
      it('...', waitForAsync(inject([AClass], (object) => {
  object.doSomething.then(() => {
    expect(...);
  })
});