update bazel BUILD

pkg/util/ipset/testing/BUILD

-load("@io_bazel_rules_go//go:def.bzl", "go_library")
+load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_test")
 
 go_library(
     name = "go_default_library",
     srcs = ["fake.go"],
     importpath = "k8s.io/kubernetes/pkg/util/ipset/testing",
     visibility = ["//visibility:public"],
-    deps = ["//pkg/util/ipset:go_default_library"],
+    deps = [
+        "//pkg/util/ipset:go_default_library",
+        "//vendor/k8s.io/apimachinery/pkg/util/sets:go_default_library",
+    ],
 )
 
 filegroup(
@@ -21,3 +24,14 @@ filegroup(
     tags = ["automanaged"],
     visibility = ["//visibility:public"],
 )
+
+go_test(
+    name = "go_default_test",
+    srcs = ["fake_test.go"],
+    importpath = "k8s.io/kubernetes/pkg/util/ipset/testing",
+    library = ":go_default_library",
+    deps = [
+        "//pkg/util/ipset:go_default_library",
+        "//vendor/k8s.io/apimachinery/pkg/util/sets:go_default_library",
+    ],
+)