Jasmine JavaScript Testing Framework Jasmine JavaScript Knowledge 3

Question 1

In Jasmine, which function is used to handle asynchronous tests by signaling completion?

Accepted Answer

done()

Answer

Jasmine passes a `done` callback to async specs; calling done() tells Jasmine the async work has finished.

Question 2

What is the default timeout for an asynchronous Jasmine spec before it fails?

Accepted Answer

5000 ms

Answer

Jasmine's default async timeout is 5000 milliseconds (5 seconds) before the spec is marked as failed.

Question 3

Which Jasmine feature allows returning a Promise from a spec instead of using the `done` callback?

Accepted Answer

Native Promise support in async specs

Answer

Modern Jasmine treats a returned Promise as the async signal; the spec passes when the Promise resolves.

Question 4

How do you use async/await syntax in a Jasmine spec?

Accepted Answer

Mark the callback as async and use await inside

Answer

You can mark the spec callback with async and use await; Jasmine detects the returned Promise automatically.

Question 5

What does calling `done.fail('reason')` do inside an async Jasmine spec?

Accepted Answer

Fails the spec immediately with the given message

Answer

done.fail() forces the spec to fail and report the provided message without waiting for timeout.

Jasmine JavaScript Testing Framework Practice Test