bot18/node_modules/middler/test/error.js

A high-frequency cryptocurrency trading bot by Zenbot creator @carlos8f

describe('error', function () {
  var server, port, m;
  before(function (done) {
    listen(function (s, p) {
      server = s;
      port = p;
      m = middler(server, function (req, res, next) {
        next(new Error('i am an error...'));
      });
      done();
    });
  });

  it('custom error handler', function (done) {
    m.on('error', function (err, req, res) {
      res.writeHead(400, {'Content-Type': 'text/plain'});
      res.end(err + '');
    });
    request.get('http://localhost:' + port + '/', function (err, res) {
      assert.equal(res.statusCode, 400);
      assert.equal(res.text, 'Error: i am an error...');
      done();
    });
  });

  it('embedded custom error handler', function (done) {
    var embedded = middler()
      .add(function (req, res, next) {
        next(new Error('handled!'));
      })
      .on('error', function (err, req, res) {
        res.writeHead(501, {'Content-Type': 'application/json'});
        res.end(JSON.stringify({error: err + ''}));
      });
    m.first(embedded.handler);

    request.get('http://localhost:' + port + '/', function (err, res) {
      assert.equal(res.statusCode, 501);
      assert.deepEqual(res.body, {
        error: 'Error: handled!'
      });
      done();
    });
  });

  it('closes the server', function (done) {
    server.once('close', done);
    server.close();
  });
});