KEP-1790: Add the acknowledgement under the Test Plan section.

Author: carlory

keps/sig-storage/1790-recover-resize-failure/README.md

@@ -273,6 +273,10 @@ The complete expansion and recovery flow of both control-plane and kubelet is do
 
 ### Test Plan
 
+[x] I/we understand the owners of the involved components may require updates to
+existing tests to make this code solid enough prior to committing the changes necessary
+to implement this enhancement.
+
 * Basic unit tests for storage strategy of PVC and quota system.
 * E2e tests using mock driver to cause failure on expansion and recovery.
 * Also verify quota usage when this happens.