31 lines
1.1 KiB
TypeScript
31 lines
1.1 KiB
TypeScript
import { describe, expect, it } from 'vitest';
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import { aggregateFiveDriveTraces } from '../../scripts/lib/performance-aggregation.mjs';
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const run = (lcp: number, tbt: number, gatingReferenceResult = true) => ({
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schema: 'drive-trace.v1',
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profile: 'desktop-high',
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gatingReferenceResult,
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validReferenceCadence: true,
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metrics: { lcp, tbt },
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budgetResults: { cls: true, scene: true },
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});
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describe('five-run drive trace aggregation', () => {
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it('uses worst and median gates across exactly five reference runs', () => {
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expect(aggregateFiveDriveTraces([
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run(2_000, 100), run(2_100, 110), run(2_500, 200), run(2_900, 250), run(3_000, 300),
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])).toMatchObject({
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runCount: 5,
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passes: true,
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summary: { lcpWorst: 3_000, lcpMedian: 2_500, tbtWorst: 300, tbtMedian: 200 },
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});
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});
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it('rejects non-reference developer evidence and wrong run counts', () => {
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expect(aggregateFiveDriveTraces([
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run(2_000, 100, false), run(2_000, 100), run(2_000, 100), run(2_000, 100), run(2_000, 100),
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]).passes).toBe(false);
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expect(() => aggregateFiveDriveTraces([run(2_000, 100)])).toThrow(/five/u);
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});
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});
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