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
  d469b055_1fec_52c3_9517_033d42902024["default.test()"]
  7ee486ef_7782_256f_e2f2_f72002a79a63["_config.js"]
  d469b055_1fec_52c3_9517_033d42902024 -->|defined in| 7ee486ef_7782_256f_e2f2_f72002a79a63
  style d469b055_1fec_52c3_9517_033d42902024 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

packages/svelte/tests/runtime-legacy/samples/transition-css-iframe/_config.js lines 5–23

	async test({ assert, component, target, raf }) {
		const frame = /** @type {HTMLIFrameElement} */ (target.querySelector('iframe'));
		await tick();
		await tick(); // TODO investigate why this second tick is necessary. without it, `Foo.svelte` initializes with `visible = true`, incorrectly

		component.visible = true;
		const div = frame.contentDocument?.querySelector('div');
		ok(div);

		raf.tick(25);

		component.visible = false;

		raf.tick(25);
		assert.equal(div.style.opacity, '0.25');

		raf.tick(35);
		assert.equal(div.style.opacity, '0.15');
	}