svelte/test/runtime/samples/binding-audio-currenttime-duration-volume/_config.js

export default {
	// not sure if we can really test this in JSDOM. Refer to
	// https://svelte.technology/repl?example=media-elements
	// instead
	skip: true,

	test ( assert, component, target, window ) {
		assert.equal( component.get().t, 0 );
		assert.equal( component.get().d, 0 );
		assert.equal( component.get().v, 0.5 );
		assert.equal( component.get().paused, true );

		const audio = target.querySelector( 'audio' );
		const timeupdate = new window.Event( 'timeupdate' );
		const durationchange = new window.Event( 'durationchange' );
		const volumechange = new window.Event( 'volumechange' );

		audio.currentTime = 10;
		audio.duration = 20;
		audio.volume = 0.75;
		audio.dispatchEvent( timeupdate );
		audio.dispatchEvent( durationchange );
		audio.dispatchEvent( volumechange );
		audio.play();

		assert.equal( component.get().t, 10 );
		assert.equal( component.get().d, 0 ); // not 20, because read-only. Not sure how to test this!
		assert.equal( component.get().v, 0.75 );
		assert.equal( component.get().paused, true ); // ditto...
		component.destroy();
	}
};