How to test emit listener? | Tauri Apps | Page 1

hushed parcel Aug 19, 2023, 8:16 PM

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Hi,
I have this simple code in my frontend:
listen('my-event', cb)
How do I evoke the listener in my unit tests?

vast ivy Aug 19, 2023, 9:04 PM

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Does this help?

https://tauri.app/v1/api/js/mocks/#mockipc

mocks | Tauri Apps

Functions

hushed parcel Aug 20, 2023, 3:20 AM

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It doesn't say how to do it IMO. Am I missing something?

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I mocked the IPC according to it and it's fine testing a call to the rust part. Now I want to test the listen - so I need to mock the emit part which is coming from Rust

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Oh - I tried this:

const eventCallbackId = `_${args.message.onEventFn}`;
                    const eventEmitter = window[eventCallbackId];

But it doesn't work. args.message is undefined.

vast ivy Aug 20, 2023, 6:54 AM

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So I think I misread your initial question. I don’t think we have a mocking service for event listeners, but I may be mistaken. Would you be so kind as to file a feature request? Thankyou!

hushed parcel Aug 20, 2023, 5:08 PM

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What I'm doing now is mock listen itself, get the Callback and fire it when the IPC mock resolves. It is cumbersome and thought there might be a "cleaner" way to do it.
Adding a feature request. Thanks!

#How to test emit listener?