Correct cni retrieval process from resource name

Due to some minor issues, network resource name wasn't being
parsed properly, thus failing removing ovn networks when
deleting VNF instance.

Issue-ID: MULTICLOUD-708

Signed-off-by: Konrad Bańka <k.banka@samsung.com>
Change-Id: I14d8eb6b82d0ee74b266272fd8a842b45e6c2b40

2 files changed, 20 insertions, 9 deletions

diff --git a/src/k8splugin/plugins/network/plugin.go b/src/k8splugin/plugins/network/plugin.go
index ca5aa959..84a5fe51 100644
--- a/src/k8splugin/plugins/network/plugin.go
+++ b/src/k8splugin/plugins/network/plugin.go
@@ -31,14 +31,16 @@ var ExportedVariable networkPlugin
 type networkPlugin struct {
 }
 
-func extractData(data string) (cniType, networkName string) {
+func extractData(data string) (cniType, networkName string, err error) {
 	re := regexp.MustCompile("_")
 	split := re.Split(data, -1)
-	if len(split) != 3 {
+	if len(split) != 2 {
+		err = pkgerrors.New("Couldn't split resource '" + data +
+			"' into CNI type and Network name")
 		return
 	}
-	cniType = split[1]
-	networkName = split[2]
+	cniType = split[0]
+	networkName = split[1]
 	return
 }
 
@@ -82,7 +84,11 @@ func (p networkPlugin) List(gvk schema.GroupVersionKind, namespace string,
 
 // Delete an existing Network
 func (p networkPlugin) Delete(resource helm.KubernetesResource, namespace string, client plugin.KubernetesConnector) error {
-	cniType, networkName := extractData(resource.Name)
+	cniType, networkName, err := extractData(resource.Name)
+	if err != nil {
+		return pkgerrors.Wrap(err, "Error extracting CNI type from resource")
+	}
+
 	typePlugin, ok := utils.LoadedPlugins[cniType+"-network"]
 	if !ok {
 		return pkgerrors.New("No plugin for resource " + cniType + " found")
diff --git a/src/k8splugin/plugins/network/plugin_test.go b/src/k8splugin/plugins/network/plugin_test.go
index 586bccb8..33cae1c7 100644
--- a/src/k8splugin/plugins/network/plugin_test.go
+++ b/src/k8splugin/plugins/network/plugin_test.go
@@ -130,18 +130,23 @@ func TestDeleteNetwork(t *testing.T) {
 	}{
 		{
 			label:         "Fail to load non-existing plugin",
-			input:         "test",
-			expectedError: "No plugin for resource",
+			input:         "non-existing-cni_test",
+			expectedError: "No plugin for resource non-existing-cni",
 		},
 		{
-			label:         "Fail to delete a network",
+			label:         "Fail to extract cni from network name",
 			input:         "1_ovn4nfvk8s_test",
+			expectedError: "Error extracting CNI type from resource: Couldn't split resource '1_ovn4nfvk8s_test' into CNI type and Network name",
+		},
+		{
+			label:         "Fail to delete a network",
+			input:         "ovn4nfvk8s_test",
 			mockError:     "Internal error",
 			expectedError: "Error during the deletion for ovn4nfvk8s plugin: Internal error",
 		},
 		{
 			label: "Successfully delete a ovn4nfv network",
-			input: "1_ovn4nfvk8s_test",
+			input: "ovn4nfvk8s_test",
 		},
 	}