default.test() — svelte Function Reference

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

Function javascript BuildSystem QualityControl calls 1

Entity Profile

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

Dependency Diagram

graph TD
  b92ced93_68fc_6c37_0319_f8c90eddf323["default.test()"]
  4a55f426_b503_dff4_1c3e_a314e87ecc3c["_config.js"]
  b92ced93_68fc_6c37_0319_f8c90eddf323 -->|defined in| 4a55f426_b503_dff4_1c3e_a314e87ecc3c
  4cc472f6_d64d_d9e3_e86b_bf028cd56f57["normalise_trace_logs()"]
  b92ced93_68fc_6c37_0319_f8c90eddf323 -->|calls| 4cc472f6_d64d_d9e3_e86b_bf028cd56f57
  style b92ced93_68fc_6c37_0319_f8c90eddf323 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

packages/svelte/tests/runtime-runes/samples/inspect-trace/_config.js lines 10–84

	test({ assert, target, logs }) {
		// initial log, everything is highlighted

		assert.deepEqual(normalise_trace_logs(logs), [
			{ log: 'effect' },
			{ log: '$derived', highlighted: true },
			{ log: 'double', highlighted: false },
			{ log: 0 },
			{ log: '$state', highlighted: true },
			{ log: 'count', highlighted: false },
			{ log: 0 },
			{ log: '$state', highlighted: true },
			{ log: 'checked', highlighted: false },
			{ log: false }
		]);

		logs.length = 0;

		const button = target.querySelector('button');
		button?.click();
		flushSync();

		// count changed, derived and state are highlighted, last state is not

		assert.deepEqual(normalise_trace_logs(logs), [
			{ log: 'effect' },
			{ log: '$derived', highlighted: true },
			{ log: 'double', highlighted: false },
			{ log: 2 },
			{ log: '$state', highlighted: true },
			{ log: 'count', highlighted: false },
			{ log: 1 },
			{ log: '$state', highlighted: false },
			{ log: 'checked', highlighted: false },
			{ log: false }
		]);

		logs.length = 0;

		const input = target.querySelector('input');
		input?.click();
		flushSync();

		// checked changed, last state is highlighted, first two are not

		assert.deepEqual(normalise_trace_logs(logs), [
			{ log: 'effect' },
			{ log: '$derived', highlighted: false },
			{ log: 'double', highlighted: false },
			{ log: 2 },
			{ log: '$state', highlighted: false },
			{ log: 'count', highlighted: false },
			{ log: 1 },
			{ log: '$state', highlighted: true },
			{ log: 'checked', highlighted: false },
			{ log: true }
		]);

		logs.length = 0;

		button?.click();
		flushSync();

		// count change and derived it's >=4, checked is not in the dependencies anymore

		assert.deepEqual(normalise_trace_logs(logs), [
			{ log: 'effect' },
			{ log: '$derived', highlighted: true },
			{ log: 'double', highlighted: false },
			{ log: 4 },
			{ log: '$state', highlighted: true },
			{ log: 'count', highlighted: false },
			{ log: 2 }
		]);
	}