import { describe, it, expect, beforeEach, vi } from 'vitest';import type { SimpleGit } from 'simple-git';import { scanCommittedFixes, clearScanCommittedFixesCache } from '../shared/git/git-commit-scan.js'; beforeEach(() => {  clearScanCommittedFixesCache();}); describe('scanCommittedFixes cache', () => {  it('skips git log on cache hit for same workdir, branch, and HEAD', async () => {    const git = {      raw: vi.fn(async (args: string[]) => {        if (args[0] === 'rev-parse' && args[1] === '--verify') {          if (args[2] === 'origin/main') return 'abc123\n';          const err = new Error('unknown ref');          throw err;        }        if (args[0] === 'log') {          return 'prr-fix:IC_cached_marker\n';        }        return '';      }),    } as unknown as SimpleGit;     const a = await scanCommittedFixes(git, 'feature/x', { workdir: '/tmp/prr-w', headSha: 'deadbeef01' });    const rawAfterFirst = git.raw.mock.calls.length;    const b = await scanCommittedFixes(git, 'feature/x', { workdir: '/tmp/prr-w', headSha: 'deadbeef01' });    expect(a).toEqual(['IC_cached_marker']);    expect(b).toEqual(['IC_cached_marker']);    expect(rawAfterFirst).toBeGreaterThan(0);    expect(git.raw.mock.calls.length).toBe(rawAfterFirst);  });   it('does not use cache when workdir or headSha omitted', async () => {    let logCalls = 0;    const git = {      raw: vi.fn(async (args: string[]) => {        if (args[0] === 'rev-parse' && args[1] === '--verify') {          if (args[2] === 'origin/main') return 'abc\n';          throw new Error('no');        }        if (args[0] === 'log') {          logCalls++;          return 'prr-fix:IC_one\n';        }        return '';      }),    } as unknown as SimpleGit;     await scanCommittedFixes(git, 'b');    await scanCommittedFixes(git, 'b');    expect(logCalls).toBe(2);  });});