util meta ut

Signed-off-by: liheng.zms <[email protected]>

Author: zmberg

Diff for: config/manager/manager.yaml

@@ -6,6 +6,13 @@ metadata:
   name: system
 ---
 apiVersion: v1
+kind: Namespace
+metadata:
+  labels:
+    control-plane: controller-manager
+  name: kruise-daemon-config
+---
+apiVersion: v1
 kind: ServiceAccount
 metadata:
   name: manager

Diff for: pkg/util/meta.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2021.
+Copyright 2022 The Kruise Authors.
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.

Diff for: pkg/util/meta_test.go

@@ -0,0 +1,39 @@
+/*
+Copyright 2022 The Kruise Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package util
+
+import (
+	"os"
+	"testing"
+)
+
+func TestMetaGetNamespace(t *testing.T) {
+	if GetKruiseNamespace() != "kruise-system" {
+		t.Fatalf("expect(kruise-system), but get(%s)", GetKruiseNamespace())
+	}
+	_ = os.Setenv("POD_NAMESPACE", "test")
+	if GetKruiseNamespace() != "test" {
+		t.Fatalf("expect(test), but get(%s)", GetKruiseNamespace())
+	}
+	if GetKruiseDaemonConfigNamespace() != "kruise-daemon-config" {
+		t.Fatalf("expect(kruise-daemon-config), but get(%s)", GetKruiseDaemonConfigNamespace())
+	}
+	_ = os.Setenv("KRUISE_DAEMON_CONFIG_NS", "test")
+	if GetKruiseDaemonConfigNamespace() != "test" {
+		t.Fatalf("expect(test), but get(%s)", GetKruiseDaemonConfigNamespace())
+	}
+}