Angular tests fail: Error: KEYBOARD_DOM_ERROR about simple-keyboard HOT 4 CLOSED

Adding that code into the beforeEach of the failing component test fixed it. Thanks

from simple-keyboard.

Hello @digilab2017,

KEYBOARD_DOM_ERROR means that <div class="simple-keyboard"></div> was not found in the dom at instantiation.

To make the error go away, simple-keyboard needs to find that element when it's run.
https://github.com/hodgef/simple-keyboard/blob/master/src/lib/components/Keyboard.js#L115

You can have a look at my unit tests here:
https://github.com/hodgef/simple-keyboard/blob/master/src/lib/components/tests/Keyboard.test.js#L15

As you see, testUtil.setDOM(); is being called, which in turn does this:

const div = document.createElement('div');
div.className += divClass || "simple-keyboard";
document.body.appendChild(div);

Angular Note: If you're using ngOnInit, use ngAfterViewInit instead, as per the following demo:
https://codesandbox.io/s/github/hodgef/angular-simple-keyboard/tree/master/?module=%2Fsrc%2Fapp%2Fapp.component.ts

Regards,
Francisco Hodge

from simple-keyboard.

Hello,
I'm having the same error, but your fix did not solve my issue. Here is my test repository: https://github.com/andrelutza/keyboard-test
Any ideas what it might be?
Thanks!

from simple-keyboard.

@andrelutza It's an issue with your Jest config
In your jest.config.js, find this:

moduleNameMapper: {
    '^@/(.*)$': '<rootDir>/src/$1'
},

and replace it with this

moduleNameMapper: {
    '^@/(.*)$': '<rootDir>/src/$1',
    "\\.(jpg|jpeg|png|gif|eot|otf|webp|svg|ttf|woff|woff2|mp4|webm|wav|mp3|m4a|aac|oga)$": "jest-transform-stub",
    "\\.(css|less)$": "jest-transform-stub"
},

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