test/parallel/test-error-reporting.js

// Copyright Joyent, Inc. and other Node contributors.
//
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// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
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// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// USE OR OTHER DEALINGS IN THE SOFTWARE.

'use strict';
const common = require('../common');
const assert = require('assert');
const exec = require('child_process').exec;
const fixtures = require('../common/fixtures');

function errExec(script, option, callback) {
  callback = typeof option === 'function' ? option : callback;
  option = typeof option === 'string' ? option : '';
  const cmd = `"${process.argv[0]}" ${option} "${fixtures.path(script)}"`;
  return exec(cmd, (err, stdout, stderr) => {
    // There was some error
    assert.ok(err);

    // More than one line of error output.
    assert.ok(stderr.split('\n').length);

    // Proxy the args for more tests.
    callback(err, stdout, stderr);
  });
}

const syntaxErrorMessage = /\bSyntaxError\b/;


// Simple throw error
errExec('throws_error.js', common.mustCall((err, stdout, stderr) => {
  assert.match(stderr, /blah/);
}));


// Trying to JSON.parse(undefined)
errExec('throws_error2.js', common.mustCall((err, stdout, stderr) => {
  assert.match(stderr, syntaxErrorMessage);
}));


// Trying to JSON.parse(undefined) in nextTick
errExec('throws_error3.js', common.mustCall((err, stdout, stderr) => {
  assert.match(stderr, syntaxErrorMessage);
}));


// throw ILLEGAL error
errExec('throws_error4.js', common.mustCall((err, stdout, stderr) => {
  assert.match(stderr, syntaxErrorMessage);
}));

// Specific long exception line doesn't result in stack overflow
errExec('throws_error5.js', common.mustCall((err, stdout, stderr) => {
  assert.match(stderr, syntaxErrorMessage);
}));

// Long exception line with length > errorBuffer doesn't result in assertion
errExec('throws_error6.js', common.mustCall((err, stdout, stderr) => {
  assert.match(stderr, syntaxErrorMessage);
}));

// Object that throws in toString() doesn't print garbage
errExec('throws_error7.js', common.mustCall((err, stdout, stderr) => {
  assert.match(stderr, /throw {\r?\n\^\r?\n{ toString: \[Function: toString] }\r?\n\r?\nNode\.js \S+\r?\n$/);
}));

// Regression tests for https://github.com/nodejs/node/issues/39149
errExec('throws_error7.js', '--enable-source-maps', common.mustCall((err, stdout, stderr) => {
  assert.match(stderr, /throw {\r?\n\^\r?\n{ toString: \[Function: toString] }\r?\n\r?\nNode\.js \S+\r?\n$/);
}));