node-postgres/test/unit/connection/error-tests.js

var helper = require(__dirname + '/test-helper');
var Connection = require(__dirname + '/../../../lib/connection');
test("connection emits stream errors", function() {
  var con = new Connection({stream: new MemoryStream()});
  assert.emits(con, 'error', function(err) {
    assert.equal(err.message, "OMG!");
  });
  con.connect();
  con.stream.emit('error', new Error("OMG!"));
});

test('connection emits ECONNRESET errors during normal operation', function() {
  var con = new Connection({stream: new MemoryStream()});
  con.connect();
  assert.emits(con, 'error', function(err) {
    assert.equal(err.code, 'ECONNRESET');
  });
  var e = new Error('Connection Reset');
  e.code = 'ECONNRESET';
  con.stream.emit('error', e);
});

test('connection does not emit ECONNRESET errors during disconnect', function() {
  var con = new Connection({stream: new MemoryStream()});
  con.connect();
  var e = new Error('Connection Reset');
  e.code = 'ECONNRESET';
  con.end();
  con.stream.emit('error', e);
});