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https://github.com/garrytan/gstack.git
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Garry Tan
94f884dc36
Single source of truth for "rewrite a PR title to start with v<VERSION>". Three cases: already correct (no-op), different prefix (replace), no prefix (prepend). Rejects malformed VERSION (anything outside ^[0-9]+(\.[0-9]+)*$) with exit code 2. Uses literal case prefix match instead of bash's pattern- matching # operator so a VERSION with glob metacharacters cannot mismatch. Free bun test covers the four branches plus malformed-input rejection, plain-words-not-stripped, single-segment-not-stripped, idempotence, and missing-args. 9 tests, ~400ms. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
55 lines
2.0 KiB
TypeScript
55 lines
2.0 KiB
TypeScript
import { describe, test, expect } from 'bun:test';
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import { spawnSync } from 'child_process';
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import * as path from 'path';
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const HELPER = path.join(import.meta.dir, '..', 'bin', 'gstack-pr-title-rewrite.sh');
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function rewrite(version: string, title: string): { stdout: string; status: number; stderr: string } {
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const r = spawnSync(HELPER, [version, title], { encoding: 'utf-8' });
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return { stdout: (r.stdout ?? '').trimEnd(), status: r.status ?? -1, stderr: r.stderr ?? '' };
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}
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describe('gstack-pr-title-rewrite', () => {
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test('already correct: no change', () => {
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const r = rewrite('1.2.3.4', 'v1.2.3.4 feat: foo');
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expect(r.status).toBe(0);
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expect(r.stdout).toBe('v1.2.3.4 feat: foo');
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});
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test('different version prefix: replaces it', () => {
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expect(rewrite('1.2.3.5', 'v1.2.3.4 feat: foo').stdout).toBe('v1.2.3.5 feat: foo');
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});
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test('different prefix length (3-part vs 4-part): replaces it', () => {
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expect(rewrite('1.2.3.4', 'v1.2.3 feat: foo').stdout).toBe('v1.2.3.4 feat: foo');
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});
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test('no version prefix: prepends', () => {
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expect(rewrite('1.2.3.4', 'feat: foo').stdout).toBe('v1.2.3.4 feat: foo');
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});
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test('does not mistake plain words for a prefix', () => {
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expect(rewrite('1.2.3.4', 'version 5 feature').stdout).toBe('v1.2.3.4 version 5 feature');
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});
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test('does not strip a single-segment prefix like v1', () => {
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expect(rewrite('1.2.3.4', 'v1 feat: foo').stdout).toBe('v1.2.3.4 v1 feat: foo');
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});
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test('errors on missing args', () => {
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const r = spawnSync(HELPER, ['1.2.3.4'], { encoding: 'utf-8' });
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expect(r.status).not.toBe(0);
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});
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test('rejects malformed VERSION with shell metacharacters', () => {
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expect(rewrite('1.*.*.*', 'feat: foo').status).toBe(2);
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expect(rewrite('1.2.3.4; rm -rf /', 'feat: foo').status).toBe(2);
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});
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test('idempotent: applying twice yields the same result', () => {
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const once = rewrite('1.2.3.4', 'feat: foo').stdout;
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const twice = rewrite('1.2.3.4', once).stdout;
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expect(twice).toBe(once);
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});
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});
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