Add ID Generator interface for generating valid IDs for Volume and Node

hack/_embedded/embedded_test.go

@@ -30,6 +30,7 @@ var _ = Describe("MyCSIDriver", func() {
 			StagingPath:               os.TempDir() + "/csi-staging",
 			Address:                   "/tmp/e2e-csi-sanity.sock",
 			TestNodeVolumeAttachLimit: true,
+			IDGen:                     &sanity.DefaultIDGenerator{},
 		}
 
 		BeforeEach(func() {})

pkg/sanity/controller.go

@@ -825,7 +825,7 @@ var _ = DescribeSanity("Controller Service [Controller Server]", func(sc *Sanity
 			volReq.VolumeContentSource = &csi.VolumeContentSource{
 				Type: &csi.VolumeContentSource_Volume{
 					Volume: &csi.VolumeContentSource_VolumeSource{
-						VolumeId: "non-existing-volume-id",
+						VolumeId: sc.Config.IDGen.GenerateUniqueValidVolumeID(),
 					},
 				},
 			}
@@ -864,7 +864,7 @@ var _ = DescribeSanity("Controller Service [Controller Server]", func(sc *Sanity
 			_, err := c.DeleteVolume(
 				context.Background(),
 				&csi.DeleteVolumeRequest{
-					VolumeId: "reallyfakevolumeid",
+					VolumeId: sc.Config.IDGen.GenerateInvalidVolumeID(),
 					Secrets:  sc.Secrets.DeleteVolumeSecret,
 				},
 			)
@@ -1061,7 +1061,7 @@ var _ = DescribeSanity("Controller Service [Controller Server]", func(sc *Sanity
 			_, err := c.ValidateVolumeCapabilities(
 				context.Background(),
 				&csi.ValidateVolumeCapabilitiesRequest{
-					VolumeId: "some-vol-id",
+					VolumeId: sc.Config.IDGen.GenerateUniqueValidVolumeID(),
 					VolumeCapabilities: []*csi.VolumeCapability{
 						{
 							AccessType: &csi.VolumeCapability_Mount{
@@ -1110,7 +1110,7 @@ var _ = DescribeSanity("Controller Service [Controller Server]", func(sc *Sanity
 			_, err := c.ControllerPublishVolume(
 				context.Background(),
 				&csi.ControllerPublishVolumeRequest{
-					VolumeId: "id",
+					VolumeId: sc.Config.IDGen.GenerateUniqueValidVolumeID(),
 					Secrets:  sc.Secrets.ControllerPublishVolumeSecret,
 				},
 			)
@@ -1126,8 +1126,8 @@ var _ = DescribeSanity("Controller Service [Controller Server]", func(sc *Sanity
 			_, err := c.ControllerPublishVolume(
 				context.Background(),
 				&csi.ControllerPublishVolumeRequest{
-					VolumeId: "id",
-					NodeId:   "fakenode",
+					VolumeId: sc.Config.IDGen.GenerateUniqueValidVolumeID(),
+					NodeId:   sc.Config.IDGen.GenerateUniqueValidNodeID(),
 					Secrets:  sc.Secrets.ControllerPublishVolumeSecret,
 				},
 			)
@@ -1287,8 +1287,8 @@ var _ = DescribeSanity("Controller Service [Controller Server]", func(sc *Sanity
 			conpubvol, err := c.ControllerPublishVolume(
 				context.Background(),
 				&csi.ControllerPublishVolumeRequest{
-					VolumeId: "some-vol-id",
-					NodeId:   "some-node-id",
+					VolumeId: sc.Config.IDGen.GenerateUniqueValidVolumeID(),
+					NodeId:   sc.Config.IDGen.GenerateUniqueValidNodeID(),
 					VolumeCapability: &csi.VolumeCapability{
 						AccessType: &csi.VolumeCapability_Mount{
 							Mount: &csi.VolumeCapability_MountVolume{},
@@ -1346,7 +1346,7 @@ var _ = DescribeSanity("Controller Service [Controller Server]", func(sc *Sanity
 				context.Background(),
 				&csi.ControllerPublishVolumeRequest{
 					VolumeId: vol.GetVolume().GetVolumeId(),
-					NodeId:   "some-fake-node-id",
+					NodeId:   sc.Config.IDGen.GenerateUniqueValidNodeID(),
 					VolumeCapability: &csi.VolumeCapability{
 						AccessType: &csi.VolumeCapability_Mount{
 							Mount: &csi.VolumeCapability_MountVolume{},
@@ -1711,7 +1711,7 @@ var _ = DescribeSanity("ListSnapshots [Controller Server]", func(sc *SanityConte
 
 		snapshots, err := c.ListSnapshots(
 			context.Background(),
-			&csi.ListSnapshotsRequest{SourceVolumeId: "none-exist-volume-id"})
+			&csi.ListSnapshotsRequest{SourceVolumeId: sc.Config.IDGen.GenerateUniqueValidVolumeID()})
 		Expect(err).NotTo(HaveOccurred())
 		Expect(snapshots).NotTo(BeNil())
 		Expect(snapshots.GetEntries()).To(BeEmpty())

pkg/sanity/node.go

@@ -187,7 +187,7 @@ var _ = DescribeSanity("Node Service", func(sc *SanityContext) {
 			_, err := c.NodePublishVolume(
 				context.Background(),
 				&csi.NodePublishVolumeRequest{
-					VolumeId: "id",
+					VolumeId: sc.Config.IDGen.GenerateUniqueValidVolumeID(),
 					Secrets:  sc.Secrets.NodePublishVolumeSecret,
 				},
 			)
@@ -202,7 +202,7 @@ var _ = DescribeSanity("Node Service", func(sc *SanityContext) {
 			_, err := c.NodePublishVolume(
 				context.Background(),
 				&csi.NodePublishVolumeRequest{
-					VolumeId:   "id",
+					VolumeId:   sc.Config.IDGen.GenerateUniqueValidVolumeID(),
 					TargetPath: sc.TargetPath + "/target",
 					Secrets:    sc.Secrets.NodePublishVolumeSecret,
 				},
@@ -233,7 +233,7 @@ var _ = DescribeSanity("Node Service", func(sc *SanityContext) {
 			_, err := c.NodeUnpublishVolume(
 				context.Background(),
 				&csi.NodeUnpublishVolumeRequest{
-					VolumeId: "id",
+					VolumeId: sc.Config.IDGen.GenerateUniqueValidVolumeID(),
 				})
 			Expect(err).To(HaveOccurred())
 
@@ -286,7 +286,7 @@ var _ = DescribeSanity("Node Service", func(sc *SanityContext) {
 			_, err := c.NodeStageVolume(
 				context.Background(),
 				&csi.NodeStageVolumeRequest{
-					VolumeId: "id",
+					VolumeId: sc.Config.IDGen.GenerateUniqueValidVolumeID(),
 					VolumeCapability: &csi.VolumeCapability{
 						AccessType: &csi.VolumeCapability_Mount{
 							Mount: &csi.VolumeCapability_MountVolume{},
@@ -395,7 +395,7 @@ var _ = DescribeSanity("Node Service", func(sc *SanityContext) {
 			_, err := c.NodeUnstageVolume(
 				context.Background(),
 				&csi.NodeUnstageVolumeRequest{
-					VolumeId: "id",
+					VolumeId: sc.Config.IDGen.GenerateUniqueValidVolumeID(),
 				})
 			Expect(err).To(HaveOccurred())
 
@@ -430,7 +430,7 @@ var _ = DescribeSanity("Node Service", func(sc *SanityContext) {
 			_, err := c.NodeGetVolumeStats(
 				context.Background(),
 				&csi.NodeGetVolumeStatsRequest{
-					VolumeId: "id",
+					VolumeId: sc.Config.IDGen.GenerateUniqueValidVolumeID(),
 				},
 			)
 			Expect(err).To(HaveOccurred())
@@ -444,7 +444,7 @@ var _ = DescribeSanity("Node Service", func(sc *SanityContext) {
 			_, err := c.NodeGetVolumeStats(
 				context.Background(),
 				&csi.NodeGetVolumeStatsRequest{
-					VolumeId:   "id",
+					VolumeId:   sc.Config.IDGen.GenerateUniqueValidVolumeID(),
 					VolumePath: "some/path",
 				},
 			)

pkg/sanity/sanity.go

@@ -120,6 +120,11 @@ type Config struct {
 	RemoveStagingPathCmd string
 	// Timeout for the executed commands for path removal.
 	RemovePathCmdTimeout int
+
+	// IDGen is an optional interface for callers to provide a generator for
+	// valid Volume and Node IDs. Defaults to DefaultIDGenerator which generates
+	// generic string IDs
+	IDGen IDGenerator
 }
 
 // SanityContext holds the variables that each test can depend on. It
@@ -153,6 +158,10 @@ func Test(t *testing.T, reqConfig *Config) {
 		}
 	}
 
+	if reqConfig.IDGen == nil {
+		reqConfig.IDGen = &DefaultIDGenerator{}
+	}
+
 	sc := &SanityContext{
 		Config: reqConfig,
 	}

pkg/sanity/util.go

@@ -0,0 +1,66 @@
+/*
+Copyright 2019 Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package sanity
+
+import (
+	"fmt"
+
+	"github.com/google/uuid"
+)
+
+// IDGenerator generates valid and invalid Volume and Node IDs to be used in
+// tests
+type IDGenerator interface {
+	// GenerateUniqueValidVolumeID must generate a unique Volume ID that the CSI
+	// Driver considers in valid form
+	GenerateUniqueValidVolumeID() string
+
+	// GenerateInvalidVolumeID must output a Volume ID that the CSI Driver MAY
+	// consider invalid. Some drivers may not have requirements on IDs in which
+	// case this method should output any non-empty ID
+	GenerateInvalidVolumeID() string
+
+	// GenerateUniqueValidNodeID must generate a unique Node ID that the CSI
+	// Driver considers in valid form
+	GenerateUniqueValidNodeID() string
+
+	// GenerateInvalidNodeID must output a Node ID that the CSI Driver MAY
+	// consider invalid. Some drivers may not have requirements on IDs in which
+	// case this method should output any non-empty ID
+	GenerateInvalidNodeID() string
+}
+
+var _ IDGenerator = &DefaultIDGenerator{}
+
+type DefaultIDGenerator struct {
+}
+
+func (d DefaultIDGenerator) GenerateUniqueValidVolumeID() string {
+	return fmt.Sprintf("fake-vol-id-%s", uuid.New().String()[:10])
+}
+
+func (d DefaultIDGenerator) GenerateInvalidVolumeID() string {
+	return "fake-vol-id"
+}
+
+func (d DefaultIDGenerator) GenerateUniqueValidNodeID() string {
+	return fmt.Sprintf("fake-node-id-%s", uuid.New().String()[:10])
+}
+
+func (d DefaultIDGenerator) GenerateInvalidNodeID() string {
+	return "fake-node-id"
+}