Function testUnlockAfterFail

test/parallel/test-fs-promises-file-handle-writer.js:219–237

()

// =============================================================================

async function testUnlockAfterFail() {
  const filePath = path.join(tmpDir, 'writer-unlock-fail.txt');
  const fh = await open(filePath, 'w');

  const w1 = fh.writer();
  await w1.write(Buffer.from('failed'));
  await w1.fail(new Error('test'));

  // Should work - handle is unlocked
  const w2 = fh.writer();
  await w2.write(Buffer.from('recovered'));
  await w2.end();
  await fh.close();

  // 'recovered' is appended after 'failed' at current file offset
  const content = fs.readFileSync(filePath, 'utf8');
  assert.ok(content.startsWith('failed'));
  assert.ok(content.includes('recovered'));
}

// =============================================================================
// Write after end/fail rejects