README.md in imap-backup-1.3.0 vs README.md in imap-backup-1.4.0

@@ -184,9 +184,21 @@
 * https://github.com/thefloweringash/gmail-imap-backup
 * https://github.com/mleonhard/imapbackup
 * https://github.com/rgrove/larch - copies between IMAP servers
 * https://github.com/OfflineIMAP/offlineimap
 
+# Testing
+
+## Integration Tests
+
+Integration tests are run against a Docker image
+(antespi/docker-imap-devel:latest).
+
+Currently, the integration tests with Docker are excluded from the CI run.
+
+The image has a pre-existing user:
+`[e-mail]` with password `pass`
+
 ## Contributing
 
 1. Fork it
 2. Create your feature branch (`git checkout -b my-new-feature`)
 3. Commit your changes (`git commit -am 'Added some feature'`)