test: add unit tests for pv/pvc metadata check

fix

Author: andyzhangx

pkg/smb/controllerserver_test.go

@@ -612,6 +612,25 @@ func TestNewSMBVolume(t *testing.T) {
 				uuid:   "pv-name",
 			},
 		},
+		{
+			desc: "subDir with pv/pvc metadata is specified",
+			name: "pv-name",
+			size: 100,
+			params: map[string]string{
+				"source":        "//smb-server.default.svc.cluster.local/share",
+				"subDir":        fmt.Sprintf("subdir-%s-%s-%s", pvcNameMetadata, pvcNamespaceMetadata, pvNameMetadata),
+				pvcNameKey:      "pvcname",
+				pvcNamespaceKey: "pvcnamespace",
+				pvNameKey:       "pvname",
+			},
+			expectVol: &smbVolume{
+				id:     "smb-server.default.svc.cluster.local/share#subdir-pvcname-pvcnamespace-pvname#pv-name",
+				source: "//smb-server.default.svc.cluster.local/share",
+				subDir: "subdir-pvcname-pvcnamespace-pvname",
+				size:   100,
+				uuid:   "pv-name",
+			},
+		},
 		{
 			desc: "subDir not specified",
 			name: "pv-name",

pkg/smb/nodeserver_test.go

@@ -63,6 +63,12 @@ func TestNodeStageVolume(t *testing.T) {
 	volContext := map[string]string{
 		sourceField: "test_source",
 	}
+	volContextWithMetadata := map[string]string{
+		sourceField:     "test_source",
+		pvcNameKey:      "pvcname",
+		pvcNamespaceKey: "pvcnamespace",
+		pvNameKey:       "pvname",
+	}
 	secrets := map[string]string{
 		usernameField: "test_username",
 		passwordField: "test_password",
@@ -167,6 +173,17 @@ func TestNodeStageVolume(t *testing.T) {
 				sourceTest),
 			expectedErr: testutil.TestError{},
 		},
+		{
+			desc: "[Success] Valid request with pv/pvc metadata",
+			req: csi.NodeStageVolumeRequest{VolumeId: "vol_1##", StagingTargetPath: sourceTest,
+				VolumeCapability: &stdVolCap,
+				VolumeContext:    volContextWithMetadata,
+				Secrets:          secrets},
+			flakyWindowsErrorMessage: fmt.Sprintf("volume(vol_1##) mount \"test_source\" on %#v failed with "+
+				"smb mapping failed with error: rpc error: code = Unknown desc = NewSmbGlobalMapping failed.",
+				sourceTest),
+			expectedErr: testutil.TestError{},
+		},
 	}
 
 	// Setup