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
  84981b53_f68d_c997_f1f0_da3c36f60203["default.test()"]
  e0e28d35_b6e8_1663_395e_1b55cfe97226["_config.js"]
  84981b53_f68d_c997_f1f0_da3c36f60203 -->|defined in| e0e28d35_b6e8_1663_395e_1b55cfe97226
  style 84981b53_f68d_c997_f1f0_da3c36f60203 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

packages/svelte/tests/runtime-runes/samples/fork-derived-uncached-1/_config.js lines 6–39

	async test({ assert, target }) {
		const [fork, toggle, increment] = target.querySelectorAll('button');

		// derived is first evaluated in block effect, then discarded
		flushSync(() => fork.click());

		// should not throw "Cannot convert a Symbol value to a string" due to cached UNINITIALIZED from first fork
		flushSync(() => fork.click());

		// should not reflect the temporary change to `clicks` inside the fork
		flushSync(() => toggle.click());

		assert.htmlEqual(
			target.innerHTML,
			`
				<button>fork</button>
				<button>toggle</button>
				<button>clicks: 0</button>
				<p>0</p>
			`
		);

		flushSync(() => increment.click());

		assert.htmlEqual(
			target.innerHTML,
			`
				<button>fork</button>
				<button>toggle</button>
				<button>clicks: 1</button>
				<p>2</p>
			`
		);
	}