Initial commit

docs/testing.md

@@ -0,0 +1,23 @@
+# Testing
+
+Describe how tests are executed.
+
+All tests should run inside Docker containers.
+
+## Canonical test command
+
+```bash
+CHANGE_ME
+```
+
+## Test categories
+
+Describe applicable categories:
+
+- unit tests;
+- integration tests;
+- linting;
+- formatting checks;
+- Ansible syntax checks;
+- Docker/Compose validation;
+- smoke tests.