23 lines
1.6 KiB
JavaScript
23 lines
1.6 KiB
JavaScript
import test from 'node:test';
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import assert from 'node:assert/strict';
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import { join } from 'node:path';
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const sourceRoot = join(process.cwd(), 'web');
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import { checkCoverage } from '../../tools/testing/frontend-coverage.mjs';
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const metrics = value => Object.fromEntries(['lines', 'branches', 'functions', 'statements'].map(key => [key, { pct: value }]));
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const summary = { total: metrics(90), [join(sourceRoot, 'a.js')]: metrics(85) };
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const baseline = { 'a.js': { lines: 80, branches: 80, functions: 80, statements: 80 } };
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test('coverage gate accepts measured files at or above their reviewed floor', () => {
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assert.deepEqual(checkCoverage(summary, baseline, sourceRoot, ['a.js']), []);
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});
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test('coverage gate rejects a regression even when the aggregate percentage is high', () => {
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assert.match(checkCoverage({ ...summary, [join(sourceRoot, 'a.js')]: metrics(70) }, baseline, sourceRoot, ['a.js']).join('\n'), /a.js.*lines/);
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});
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test('coverage gate rejects absent source files and unreviewed new files', () => {
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assert.match(checkCoverage({ total: metrics(100) }, baseline, sourceRoot, ['a.js']).join('\n'), /missing.*a.js/i);
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assert.match(checkCoverage(summary, baseline, sourceRoot, ['a.js', 'new.js']).join('\n'), /baseline.*new.js/i);
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});
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test('coverage gate rejects invalid baselines and missing metrics', () => {
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assert.throws(() => checkCoverage(summary, { 'a.js': { lines: -1 } }, sourceRoot, ['a.js']), /baseline/i);
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assert.match(checkCoverage({ total: metrics(100), [join(sourceRoot, 'a.js')]: {} }, baseline, sourceRoot, ['a.js']).join('\n'), /lines/);
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});
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