default.test() — svelte Function Reference

Architecture documentation for the default.test() function in _config.js from the svelte codebase.

Function javascript BuildSystem MessageProcessor

Entity Profile

BuildSystem→ MessageProcessor→ default.test() — svelte Function Reference

Dependency Diagram

graph TD
  e1dc2512_3101_0e74_b5ef_ad780d8682d3["default.test()"]
  51dde38d_1811_4608_811b_7887ba7a6532["_config.js"]
  e1dc2512_3101_0e74_b5ef_ad780d8682d3 -->|defined in| 51dde38d_1811_4608_811b_7887ba7a6532
  style e1dc2512_3101_0e74_b5ef_ad780d8682d3 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

packages/svelte/tests/runtime-legacy/samples/event-handler-dynamic/_config.js lines 14–68

	test({ assert, target, window }) {
		const [updateButton1, updateButton2, button] = target.querySelectorAll('button');

		const event = new window.MouseEvent('click', { bubbles: true });
		let err = '';
		window.addEventListener('error', (e) => {
			e.preventDefault();
			err = e.message;
		});

		button.dispatchEvent(event);
		flushSync();
		assert.equal(err, '', err);
		assert.htmlEqual(
			target.innerHTML,
			`
			<p>
				<button>set handler 1</button>
				<button>set handler 2</button>
			</p>
			<p>0</p>
			<button>click</button>
		`
		);

		updateButton1.dispatchEvent(event);
		button.dispatchEvent(event);
		flushSync();
		assert.htmlEqual(
			target.innerHTML,
			`
			<p>
				<button>set handler 1</button>
				<button>set handler 2</button>
			</p>
			<p>1</p>
			<button>click</button>
		`
		);

		updateButton2.dispatchEvent(event);
		button.dispatchEvent(event);
		flushSync();
		assert.htmlEqual(
			target.innerHTML,
			`
			<p>
				<button>set handler 1</button>
				<button>set handler 2</button>
			</p>
			<p>2</p>
			<button>click</button>
		`
		);
	}