Migrate "Testing"

docs/general-guidelines/testing.md

@@ -1 +1,59 @@
 # Testing
+
+## Automated testing
+
+- General
+   - Unit testing
+   - Integration testing (at (sub)service or application level)
+   - UI testing
+      - Types / purposes
+         - Functionality, workflow
+         - Browser compatibility
+            - Guidelines for desired/required support
+      - & CI
+         - Use dedicated platform for this (Sauce Labs)
+         - [https://docs.travis-ci.com/user/gui-and-headless-browsers/](https://docs.travis-ci.com/user/gui-and-headless-browsers/)
+         - When to run? Takes relatively long, so not needed on every push but
+         e.g. on a regular schedule and tags
+      - Technology
+         - Selenium
+         - Puppeteer (Node, Chromium only)
+   - Test coverage
+- What to test where (and when)?
+   - Application
+      - Unit tests for class and methods
+   - Docker
+      - Create minimal ‘mock’ context + configuration in compose project
+      - Test HTTP responses
+         - If no HTTP interface?
+            - “Mix in” HTTP interface (see e.g. [Postgres image](https://gitlab.com/CLARIN-ERIC/docker-postgres/-/tree/1.3.0/test))
+   - Compose
+      - Final integration
+         - Provide test configuration, clean state
+         - Bring everything up (using control script)
+         - Verify that everything is up
+         - Verify that everything goes down properly
+      - Test backup and restore (with mock data)
+      - Other custom control commands
+      - All overlays
+
+### Acceptance testing
+
+- Testing -> Staging -> Production process
+   - Alpha testing
+      - Involve other developers
+   - Beta testing
+      - Who does it? What is the procedure??
+      - At least one week of beta testing, scheduled tasks (backups,
+      synchronisations, data ingest, indexation, cleanups...) should be able to
+      run at least twice
+      - Guideline: find representative(s) of target audience to “try it out” and
+      give feedback
+         - Ideally more and less experienced/informed users
+         - Test both new features and existing features (to find regressions)
+         - Announce on eric-tech; centre news; ... test channel on slack
+      - Guideline: Define minimal test plan and have someone else walk through it
+      - Guideline: include easy feedback mechanism (e.g. mopinion)
+         - can stay in production but should not be intrusive
+         - Should minimally have a simple free text report option
+         - Optionally **also** a guided feedback form