QRL/function props spies in interaction tests

[k-schneider]

If I have a button with a simple onClick$ handler, how might I go about asserting that the QRL was invoked?

The storybook docs recommend you use fn() which returns a spy so in React your test can simply use expect(args.onClick).toHaveBeenCalled(); to verify.

With Qwik, you need to pass QRL's so how can you verify they're invoked? I tried wrapping a spy into a QRL and then asserting the underlying spy was invoked but it never is (assuming that serialization breaks this somehow?).

Is this possible?

[ianlet]

To provide better testing utilities for Qwik Testing Library, we started working on qwik-mock to mock QRLs. It's really not perfect and currently relies on vite (vi.fn()), but maybe it can get you inspired. The code is pretty simple for now (see the sources).