default.test() — svelte Function Reference

Source Code

packages/svelte/tests/runtime-legacy/samples/component-binding-reactive-statement/_config.js lines 10–56

	test({ assert, target, window }) {
		const event = new window.MouseEvent('click', { bubbles: true });

		const buttons = target.querySelectorAll('button');

		buttons[0].dispatchEvent(event);
		flushSync();
		assert.htmlEqual(
			target.innerHTML,
			`
			<button>main 1</button>
			<button>button 1</button>
		`
		);

		buttons[1].dispatchEvent(event);
		flushSync();
		assert.htmlEqual(
			target.innerHTML,
			`
			<button>main 2</button>
			<button>button 2</button>
		`
		);

		// reactive update, reset to 2
		buttons[0].dispatchEvent(event);
		flushSync();
		assert.htmlEqual(
			target.innerHTML,
			`
			<button>main 2</button>
			<button>button 2</button>
		`
		);

		// bound to main, reset to 2
		buttons[1].dispatchEvent(event);
		flushSync();
		assert.htmlEqual(
			target.innerHTML,
			`
			<button>main 2</button>
			<button>button 2</button>
		`
		);
	}