Added fixes for test key handling.

Author: sjswerdlow

pkg/common/parameters.go

@@ -22,6 +22,9 @@ import (
 )
 
 const (
+	// Disk Params
+	ParameterAccessMode						  = "access-mode"
+
 	// Parameters for StorageClass
 	ParameterKeyType                          = "type"
 	ParameterKeyReplicationType               = "replication-type"
@@ -157,7 +160,6 @@ func (pp *ParameterProcessor) ExtractAndDefaultParameters(parameters map[string]
 		Tags:                 make(map[string]string), // Default
 		Labels:               make(map[string]string), // Default
 		ResourceTags:         make(map[string]string), // Default
-		AccessMode:           "READ_WRITE_SINGLE",     // Default
 	}
 
 	for k, v := range extraVolumeLabels {
@@ -266,6 +268,10 @@ func (pp *ParameterProcessor) ExtractAndDefaultParameters(parameters map[string]
 			if paramEnableMultiZoneProvisioning {
 				p.Labels[MultiZoneLabel] = "true"
 			}
+		case ParameterAccessMode:
+			if v != "" {
+				p.AccessMode = v
+			}
 		default:
 			return p, fmt.Errorf("parameters contains invalid option %q", k)
 		}

test/e2e/tests/single_zone_e2e_test.go

@@ -1785,7 +1785,8 @@ func deleteVolumeOrError(client *remote.CsiClient, volID string) {
 func createAndValidateUniqueZonalMultiWriterDisk(client *remote.CsiClient, project, zone string, diskType string) (string, string) {
 	// Create Disk
 	disk := typeToDisk[diskType]
-		disk.params.AccessMode = "READ_WRITE_MANY"
+
+	disk.params[common.ParameterAccessMode] = "READ_WRITE_MANY"
 
 	volName := testNamePrefix + string(uuid.NewUUID())
 	volume, err := client.CreateVolumeWithCaps(volName, disk.params, defaultMwSizeGb,