Skip uninstall and resource cleanup when fail-fast is enabled.

Signed-off-by: Xun Jiang <xun.jiang@broadcom.com>

test/e2e/basic/namespace-mapping.go

@@ -116,7 +116,9 @@ func (n *NamespaceMapping) Verify() error {
 }
 
 func (n *NamespaceMapping) Clean() error {
-	if !n.VeleroCfg.Debug {
+	if CurrentSpecReport().Failed() && n.VeleroCfg.FailFast {
+		fmt.Println("Test case failed and fail fast is enabled. Skip resource clean up.")
+	} else {
 		if err := DeleteStorageClass(context.Background(), n.Client, KibishiiStorageClassName); err != nil {
 			return err
 		}
@@ -128,5 +130,6 @@ func (n *NamespaceMapping) Clean() error {
 
 		return n.GetTestCase().Clean()
 	}
+
 	return nil
 }