packages/runtime-host/src/__tests__/node-error.test.ts

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
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import assert from 'node:assert/strict';
import { test } from 'node:test';
import { isNodeError } from '../node-error.js';

test('narrows only Error instances with the requested exact errno code', () => {
  const missing = Object.assign(new Error('missing'), { code: 'ENOENT' });
  const denied = Object.assign(new Error('denied'), { code: 'EPERM' });

  assert.equal(isNodeError(missing, 'ENOENT'), true);
  if (isNodeError(missing, 'ENOENT')) assert.equal(missing.code, 'ENOENT');
  assert.equal(isNodeError(missing, 'EPERM'), false);
  assert.equal(isNodeError(denied, 'ENOENT'), false);
  assert.equal(isNodeError({ code: 'ENOENT' }, 'ENOENT'), false);
  assert.equal(isNodeError('ENOENT', 'ENOENT'), false);
  assert.equal(isNodeError(new Error('missing'), 'ENOENT'), false);
});