node/test/simple/test-error-reporting.js

require("../common");
exec = require('child_process').exec,
path = require('path');

exits = 0;

function errExec (script, callback) {
  var cmd = process.argv[0] + ' ' + path.join(fixturesDir, script);
  return exec(cmd, function (err, stdout, stderr) {
    // There was some error
    assert.ok(err);

    // More than one line of error output.
    assert.ok(stderr.split('\n').length > 2);

    // Assert the script is mentioned in error output.
    assert.ok(stderr.indexOf(script) >= 0);

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

    // Count the tests
    exits++;

    puts('.');
  });
}


// Simple throw error
errExec('throws_error.js', function (err, stdout, stderr) {
  assert.ok(/blah/.test(stderr));
});


// Trying to JSON.parse(undefined)
errExec('throws_error2.js', function (err, stdout, stderr) {
  assert.ok(/JSON/.test(stderr));
});


// Trying to JSON.parse(undefined) in nextTick
errExec('throws_error3.js', function (err, stdout, stderr) {
  assert.ok(/JSON/.test(stderr));
});


process.addListener('exit', function () {
  assert.equal(3, exits);
});