Adding unit tests to methods of netsh

pkg/util/netsh/BUILD

@@ -3,6 +3,7 @@ package(default_visibility = ["//visibility:public"])
 load(
     "@io_bazel_rules_go//go:def.bzl",
     "go_library",
+    "go_test",
 )
 
 go_library(
@@ -33,3 +34,16 @@ filegroup(
     ],
     tags = ["automanaged"],
 )
+
+go_test(
+    name = "go_default_test",
+    srcs = ["netsh_test.go"],
+    importpath = "k8s.io/kubernetes/pkg/util/netsh",
+    library = ":go_default_library",
+    deps = [
+        "//vendor/github.com/pkg/errors:go_default_library",
+        "//vendor/github.com/stretchr/testify/assert:go_default_library",
+        "//vendor/k8s.io/utils/exec:go_default_library",
+        "//vendor/k8s.io/utils/exec/testing:go_default_library",
+    ],
+)