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default.test() — svelte Function Reference

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

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Dependency Diagram

graph TD
  1c8f38d0_1846_2e55_60ee_ba83f58f3c98["default.test()"]
  b242dcc0_b702_e723_1454_9ab20cb38ffa["_config.js"]
  1c8f38d0_1846_2e55_60ee_ba83f58f3c98 -->|defined in| b242dcc0_b702_e723_1454_9ab20cb38ffa
  style 1c8f38d0_1846_2e55_60ee_ba83f58f3c98 fill:#6366f1,stroke:#818cf8,color:#fff

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Source Code

packages/svelte/tests/runtime-legacy/samples/transition-js-each-block-intro-outro/_config.js lines 8–45

	test({ assert, component, target, raf }) {
		component.visible = true;
		const divs = /** @type {NodeListOf<HTMLDivElement & { foo: number, bar: number }>} */ (
			target.querySelectorAll('div')
		);

		raf.tick(0);
		assert.equal(divs[0].foo, 0);
		assert.equal(divs[1].foo, 0);
		assert.equal(divs[2].foo, 0);

		raf.tick(50);
		assert.equal(divs[0].foo, 0.5);
		assert.equal(divs[1].foo, 0.5);
		assert.equal(divs[2].foo, 0.5);

		component.visible = false;

		raf.tick(70);
		assert.equal(divs[0].foo, 0.7);
		assert.equal(divs[1].foo, 0.7);
		assert.equal(divs[2].foo, 0.7);

		assert.equal(divs[0].bar, 0.8);
		assert.equal(divs[1].bar, 0.8);
		assert.equal(divs[2].bar, 0.8);

		component.visible = true;

		raf.tick(100);
		assert.equal(divs[0].foo, 0.3);
		assert.equal(divs[1].foo, 0.3);
		assert.equal(divs[2].foo, 0.3);

		assert.equal(divs[0].bar, 1);
		assert.equal(divs[1].bar, 1);
		assert.equal(divs[2].bar, 1);
	}

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Frequently Asked Questions

What does default.test() do?
default.test() is a function in the svelte codebase, defined in packages/svelte/tests/runtime-legacy/samples/transition-js-each-block-intro-outro/_config.js.
Where is default.test() defined?
default.test() is defined in packages/svelte/tests/runtime-legacy/samples/transition-js-each-block-intro-outro/_config.js at line 8.

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