1'use strict';
2
3// Do not read filesystem when creating AssertionError messages for code in
4// builtin modules.
5
6require('../common');
7const assert = require('assert');
8const EventEmitter = require('events');
9const e = new EventEmitter();
10e.on('hello', assert);
11
12if (process.argv[2] !== 'child') {
13  const tmpdir = require('../common/tmpdir');
14  tmpdir.refresh();
15  const { spawnSync } = require('child_process');
16
17  let threw = false;
18  try {
19    e.emit('hello', false);
20  } catch (err) {
21    const frames = err.stack.split('\n');
22    const [, filename, line, column] = frames[1].match(/\((.+):(\d+):(\d+)\)/);
23    // Spawn a child process to avoid the error having been cached in the assert
24    // module's `errorCache` Map.
25
26    const { output, status, error } =
27      spawnSync(process.execPath,
28                [process.argv[1], 'child', filename, line, column],
29                { cwd: tmpdir.path, env: process.env });
30    assert.ifError(error);
31    assert.strictEqual(status, 0, `Exit code: ${status}\n${output}`);
32    threw = true;
33  }
34  assert.ok(threw);
35} else {
36  const { writeFileSync } = require('fs');
37  const [, , , filename, line, column] = process.argv;
38  const data = `${'\n'.repeat(line - 1)}${' '.repeat(column - 1)}` +
39               'ok(failed(badly));';
40
41  writeFileSync(filename, data);
42  assert.throws(
43    () => e.emit('hello', false),
44    {
45      message: 'false == true'
46    }
47  );
48}
49