e2e: add test for expansion of encrypted volumes

Also adds a test case to validate the default encryption type

Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>

e2e/rbd.go

@@ -597,6 +597,48 @@ var _ = Describe("RBD", func() {
 				}
 			})
 
+			By("Resize Encrypted Block PVC and check Device size", func() {
+				err := deleteResource(rbdExamplePath + "storageclass.yaml")
+				if err != nil {
+					e2elog.Failf("failed to delete storageclass with error %v", err)
+				}
+				err = createRBDStorageClass(
+					f.ClientSet,
+					f,
+					defaultSCName,
+					nil,
+					map[string]string{"encrypted": "true"},
+					deletePolicy)
+				if err != nil {
+					e2elog.Failf("failed to create storageclass with error %v", err)
+				}
+
+				// FileSystem PVC resize
+				err = resizePVCAndValidateSize(pvcPath, appPath, f)
+				if err != nil {
+					e2elog.Failf("failed to resize filesystem PVC with error %v", err)
+				}
+				// validate created backend rbd images
+				validateRBDImageCount(f, 0, defaultRBDPool)
+
+				// Block PVC resize
+				err = resizePVCAndValidateSize(rawPvcPath, rawAppPath, f)
+				if err != nil {
+					e2elog.Failf("failed to resize block PVC with error %v", err)
+				}
+				// validate created backend rbd images
+				validateRBDImageCount(f, 0, defaultRBDPool)
+
+				err = deleteResource(rbdExamplePath + "storageclass.yaml")
+				if err != nil {
+					e2elog.Failf("failed to delete storageclass with error %v", err)
+				}
+				err = createRBDStorageClass(f.ClientSet, f, defaultSCName, nil, nil, deletePolicy)
+				if err != nil {
+					e2elog.Failf("failed to create storageclass with error %v", err)
+				}
+			})
+
 			By("create a PVC and bind it to an app with encrypted RBD volume with VaultKMS", func() {
 				err := deleteResource(rbdExamplePath + "storageclass.yaml")
 				if err != nil {