1'use strict';
2require('../common');
3const ArrayStream = require('../common/arraystream');
4const fixtures = require('../common/fixtures');
5const assert = require('assert');
6const repl = require('repl');
7
8const stackRegExp = /(REPL\d+):[0-9]+:[0-9]+/g;
9
10function run({ command, expected }) {
11  let accum = '';
12
13  const inputStream = new ArrayStream();
14  const outputStream = new ArrayStream();
15
16  outputStream.write = (data) => accum += data.replace('\r', '');
17
18  const r = repl.start({
19    prompt: '',
20    input: inputStream,
21    output: outputStream,
22    terminal: false,
23    useColors: false
24  });
25
26  r.write(`${command}\n`);
27  assert.strictEqual(
28    accum.replace(stackRegExp, '$1:*:*'),
29    expected.replace(stackRegExp, '$1:*:*')
30  );
31  r.close();
32}
33
34const origPrepareStackTrace = Error.prepareStackTrace;
35Error.prepareStackTrace = (err, stack) => {
36  if (err instanceof SyntaxError)
37    return err.toString();
38  stack.push(err);
39  return stack.reverse().join('--->\n');
40};
41
42process.on('uncaughtException', (e) => {
43  Error.prepareStackTrace = origPrepareStackTrace;
44  throw e;
45});
46
47const tests = [
48  {
49    // test .load for a file that throws
50    command: `.load ${fixtures.path('repl-pretty-stack.js')}`,
51    expected: 'Uncaught Error: Whoops!--->\nREPL1:*:*--->\nd (REPL1:*:*)' +
52              '--->\nc (REPL1:*:*)--->\nb (REPL1:*:*)--->\na (REPL1:*:*)\n'
53  },
54  {
55    command: 'let x y;',
56    expected: 'let x y;\n      ^\n\n' +
57              'Uncaught SyntaxError: Unexpected identifier\n'
58  },
59  {
60    command: 'throw new Error(\'Whoops!\')',
61    expected: 'Uncaught Error: Whoops!\n'
62  },
63  {
64    command: 'foo = bar;',
65    expected: 'Uncaught ReferenceError: bar is not defined\n'
66  },
67  // test anonymous IIFE
68  {
69    command: '(function() { throw new Error(\'Whoops!\'); })()',
70    expected: 'Uncaught Error: Whoops!--->\nREPL5:*:*\n'
71  },
72];
73
74tests.forEach(run);
75