Write comprehensive unit tests for all PKI API types, validation rules, and configuration logic.Test coverage needed:*API validation tests: Valid configurations accepted* Invalid algorithm rejected* Invalid keySize rejected* Invalid curve rejected* Mutual exclusivity enforced (keySize vs curve)* Required fields enforced* List uniqueness enforced (category, certificateName)Type tests:* DeepCopy works correctly* JSON marshaling/unmarshaling* Default values applied correctlyEdge cases:* Empty spec behavior* Minimal valid config* Maximal config with all fields* Unicode in certificateName (should fail)Test organization:* Location: openshift/api/config/v1alpha1/_test.go Use table-driven tests for validation* Test both valid and invalid inputs* Clear test names describing scenario*Acceptance:** Unit tests written for all validation rules* Test coverage >80% for PKI types* All tests passing* Tests run in CI