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かっこかり
104 lines
3.4 KiB
TypeScript
104 lines
3.4 KiB
TypeScript
/*
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* SPDX-FileCopyrightText: syuilo and misskey-project
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* SPDX-License-Identifier: AGPL-3.0-only
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*/
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import { describe, expect, test } from 'vitest';
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import {
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createEmptyHeapSnapshotData,
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renderHeapSnapshotTable,
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summarizeHeapSnapshotDataSamples,
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type HeapSnapshotData,
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type HeapSnapshotReport,
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} from '../src/heap-snapshot';
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function snapshot(total: number): HeapSnapshotData {
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const data = createEmptyHeapSnapshotData();
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data.categories.total = total;
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return data;
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}
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function report(totals: number[]): HeapSnapshotReport {
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const samples = totals.map((total, index) => ({
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round: index + 1,
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data: snapshot(total),
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}));
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const summary = summarizeHeapSnapshotDataSamples(samples, sample => sample.data);
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if (summary == null) throw new Error('expected heap snapshot samples to produce a summary');
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return {
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summary,
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samples,
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};
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}
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function totalRow(markdown: string) {
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const row = markdown.split('\n').find(line => line.includes('**Total**'));
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if (row === undefined) throw new Error('expected heap snapshot table to contain a Total row');
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return row;
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}
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describe('renderHeapSnapshotTable', () => {
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test('leaves a threshold-sized delta uncoloured when it is within observed noise', () => {
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const row = totalRow(renderHeapSnapshotTable(
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report([1_000_000, 1_100_000, 1_200_000]),
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report([1_100_000, 1_200_000, 1_300_000]),
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));
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expect(row).toContain('$\\text{+100\u00A0KB}$');
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expect(row).not.toContain('within noise');
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expect(row).not.toContain('\\color{orange}');
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});
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test('colours both delta lines for a clear increase at or above the absolute threshold', () => {
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const row = totalRow(renderHeapSnapshotTable(
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report([1_000_000, 1_000_000, 1_000_000]),
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report([1_200_000, 1_200_000, 1_200_000]),
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));
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expect(row).toContain('$\\color{orange}{\\text{+200\u00A0KB}}$');
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expect(row).toContain('$\\color{orange}{\\text{+20\\\\%}}$');
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expect(row).not.toContain('increase');
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});
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test('leaves both delta lines uncoloured below the absolute threshold', () => {
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const row = totalRow(renderHeapSnapshotTable(
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report([1_000_000, 1_000_000, 1_000_000]),
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report([1_050_000, 1_050_000, 1_050_000]),
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));
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expect(row).toContain('$\\text{+50\u00A0KB}$<br>$\\text{+5\\\\%}$');
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expect(row.split('|')[4]).not.toContain('\\color{');
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});
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test('throws when only one snapshot per side reaches the renderer', () => {
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expect(() => renderHeapSnapshotTable(
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report([1_000_000]),
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report([1_200_000]),
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)).toThrow('At least two samples per side are required');
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});
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test('uses two-line formatting only for Total and puts a five-column separator after it', () => {
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const table = renderHeapSnapshotTable(
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report([1_000_000, 1_000_000, 1_000_000]),
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report([1_200_000, 1_200_000, 1_200_000]),
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);
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const lines = table.split('\n');
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const totalIndex = lines.findIndex(line => line.includes('**Total**'));
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const categoryRow = lines.find(line => line.includes('**Code**'));
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expect(lines.slice(0, 2)).toStrictEqual([
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'| Metric | @ Base | @ Head | Δ | MAD |',
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'| --- | ---: | ---: | ---: | ---: |',
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]);
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expect(table).not.toContain('Result');
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expect(totalIndex).toBeGreaterThan(1);
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expect(lines[totalIndex].match(/<br>/g)).toHaveLength(3);
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expect(lines[totalIndex + 1]).toBe('| | | | | |');
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expect(categoryRow).toBeDefined();
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expect(categoryRow).not.toContain('<br>');
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expect(categoryRow).not.toContain('<details>');
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expect(categoryRow).not.toContain('→');
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});
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});
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