default.test() — svelte Function Reference

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

Function javascript BuildSystem MessageProcessor

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

Dependency Diagram

graph TD
  6c535959_b407_4ab4_2fbe_2d66faa1e620["default.test()"]
  366e2071_8c31_30c8_453f_3f784cb39307["_config.js"]
  6c535959_b407_4ab4_2fbe_2d66faa1e620 -->|defined in| 366e2071_8c31_30c8_453f_3f784cb39307
  style 6c535959_b407_4ab4_2fbe_2d66faa1e620 fill:#6366f1,stroke:#818cf8,color:#fff

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Source Code

packages/svelte/tests/runtime-runes/samples/event-handler-invalid-values/_config.js lines 10–37

	test({ assert, target, warnings, logs, errors }) {
		const handler = (/** @type {any} */ e) => {
			e.stopImmediatePropagation();
		};

		window.addEventListener('error', handler, true);

		const [b1, b2, b3] = target.querySelectorAll('button');

		b1.click();
		assert.deepEqual(logs, []);
		assert.deepEqual(errors, []);

		b2.click();
		assert.deepEqual(logs, ['clicked']);
		assert.deepEqual(errors, []);

		logs.length = 0;

		b3.click();
		assert.deepEqual(logs, []);
		assert.deepEqual(warnings, [
			'`click` handler at main.svelte:10:17 should be a function. Did you mean to add a leading `() =>`?'
		]);
		assert.include(errors[0], 'is not a function');

		window.removeEventListener('error', handler, true);
	}