On ECONNRESET, `assert()` calls undefined `res.status` which throws an error

When for some reason the remote server fails and the connection is reset, supertest cannot handle the error properly which is why the following error is thrown:

|"TypeError: Cannot read property 'status' of undefined",
|"    at Test.assert (/webapp/node_modules/supertest/lib/test.js:203:12)",
|"    at assert (/webapp/node_modules/supertest/lib/test.js:132:12)",
|"    at /webapp/node_modules/supertest/lib/test.js:129:5",
|"    at Test.Request.callback (/webapp/node_modules/superagent/lib/node/index.js:781:12)",
|"    at ClientRequest.<anonymous> (/webapp/node_modules/superagent/lib/node/index.js:736:10)",
|"    at ClientRequest.emit (events.js:95:17)",
|"    at Socket.socketOnEnd [as onend] (http.js:1569:9)",
|"    at Socket.g (events.js:180:16)",
|"    at Socket.emit (events.js:117:20)",
|"    at _stream_readable.js:944:16",
|"    at process._tickCallback (node.js:448:13)"

There is this code on line 202 in supertest/lib/test.js:

if (status) {
  if (res.status !== status) {
    var a = http.STATUS_CODES[status];
    var b = http.STATUS_CODES[res.status];
    return fn(new Error('expected ' + status + ' "' + a + '", got ' + res.status + ' "' + b + '"'), res);
  }

  // remove expected superagent error
  if (resError && resError instanceof Error && resError.status === status) {
    resError = null;
  }
}

On the line 203, which says if (res.status !== status) {, res is undefined. Because resError = { [Error: socket hang up] code: 'ECONNRESET', response: undefined }.

[aides]

It’s quite an old thread and it is closed, but I still encounter this issue. It is reproduced on Windows only and when I send a PUT with binary content with content-type set to a different value. After googling this is still the most relevant place, so maybe someone knows how to address this problem?

[varunj90]

@mikelax - Do you know ETA for this fix; or know if supertest is working towards a fix?

My issue is similar to this : https://github.com/visionmedia/supertest/issues/298