fix: add missing test suite to kuttl (#5268)

* fix: add missing test suite to kuttl

Signed-off-by: Charles-Edouard Brétéché <charles.edouard@nirmata.com>

* fix path

Signed-off-by: Charles-Edouard Brétéché <charles.edouard@nirmata.com>

* readme

Signed-off-by: Charles-Edouard Brétéché <charles.edouard@nirmata.com>

Signed-off-by: Charles-Edouard Brétéché <charles.edouard@nirmata.com>

test/conformance/kuttl/kuttl-test.yaml

@@ -10,11 +10,12 @@ testDirs:
 # Mutate tests
 - ./test/conformance/kuttl/mutate/clusterpolicy/standard
 - ./test/conformance/kuttl/mutate/clusterpolicy/standard/existing
+- ./test/conformance/kuttl/mutate/clusterpolicy/cornercases
 # Validate tests
 - ./test/conformance/kuttl/validate/clusterpolicy/standard/audit
 - ./test/conformance/kuttl/validate/clusterpolicy/standard/enforce
 - ./test/conformance/kuttl/validate/clusterpolicy/cornercases
-  # verifyImages tests
+# Verify image tests
 - ./test/conformance/kuttl/verifyImages/clusterpolicy/standard
 # Report tests
 - ./test/conformance/kuttl/reports/admission

test/conformance/kuttl/mutate/clusterpolicy/cornercases/defaulting-namespace-labels/README.md

@@ -0,0 +1,13 @@
+## Description
+
+This tests checks that if namespace labels used in a policy are not present the resource is NOT created.
+If the expected labels are defaulted in the policy the resource creation should work fine.
+
+## Expected Behavior
+
+The first part of the test checks that the resource fails to create if namespace labels are not present.
+Then the policy is updated to use default values when namespace labels are missing, then the resource should be created without issue.
+
+## Reference Issue(s)
+
+5136