repro; Automattic/mongoose#2865

Author: vkarpov15

test/functional/connection_tests.js

@@ -331,18 +331,24 @@ exports['Should correctly reconnect and finish query operation'] = {
  test.equal(null, err);
  // Signal db reconnect
  var dbReconnect = 0;
+ var dbClose = 0;
 
  db.on('reconnect', function() {
  ++dbReconnect;
  });
 
+ db.on('close', function() {
+ ++dbClose;
+ });
+
  db.serverConfig.once('reconnect', function() {
 
  // Await reconnect and re-authentication
  db.collection('test_reconnect').findOne(function(err, doc) {
  test.equal(null, err);
  test.equal(1, doc.a);
  test.equal(1, dbReconnect);
+ test.equal(1, dbClose);
 
  // Attempt disconnect again
  db.serverConfig.connections()[0].destroy();
@@ -352,6 +358,7 @@ exports['Should correctly reconnect and finish query operation'] = {
  test.equal(null, err);
  test.equal(1, doc.a);
  test.equal(2, dbReconnect);
+ test.equal(2, dbClose);
 
  db.close();
  test.done();
@@ -364,4 +371,4 @@ exports['Should correctly reconnect and finish query operation'] = {
  });
  });
  }
-}
+}