Update dependencies

pkg/k8s/main_test.go

@@ -0,0 +1,241 @@
+/*
+Copyright 2015 The Kubernetes 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 k8s
+
+import (
+	"os"
+	"testing"
+
+	apiv1 "k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	testclient "k8s.io/client-go/kubernetes/fake"
+)
+
+func TestParseNameNS(t *testing.T) {
+	tests := []struct {
+		title  string
+		input  string
+		ns     string
+		name   string
+		expErr bool
+	}{
+		{"empty string", "", "", "", true},
+		{"demo", "demo", "", "", true},
+		{"kube-system", "kube-system", "", "", true},
+		{"default/kube-system", "default/kube-system", "default", "kube-system", false},
+	}
+
+	for _, test := range tests {
+		ns, name, err := ParseNameNS(test.input)
+		if test.expErr {
+			if err == nil {
+				t.Errorf("%v: expected error but returned nil", test.title)
+			}
+			continue
+		}
+		if test.ns != ns {
+			t.Errorf("%v: expected %v but returned %v", test.title, test.ns, ns)
+		}
+		if test.name != name {
+			t.Errorf("%v: expected %v but returned %v", test.title, test.name, name)
+		}
+	}
+}
+
+func TestGetNodeIP(t *testing.T) {
+	fKNodes := []struct {
+		cs *testclient.Clientset
+		n  string
+		ea string
+	}{
+		// empty node list
+		{testclient.NewSimpleClientset(), "demo", ""},
+
+		// node not exist
+		{testclient.NewSimpleClientset(&apiv1.NodeList{Items: []apiv1.Node{{
+			ObjectMeta: metav1.ObjectMeta{
+				Name: "demo",
+			},
+			Status: apiv1.NodeStatus{
+				Addresses: []apiv1.NodeAddress{
+					{
+						Type:    apiv1.NodeInternalIP,
+						Address: "10.0.0.1",
+					},
+				},
+			},
+		}}}), "notexistnode", ""},
+
+		// node  exist
+		{testclient.NewSimpleClientset(&apiv1.NodeList{Items: []apiv1.Node{{
+			ObjectMeta: metav1.ObjectMeta{
+				Name: "demo",
+			},
+			Status: apiv1.NodeStatus{
+				Addresses: []apiv1.NodeAddress{
+					{
+						Type:    apiv1.NodeInternalIP,
+						Address: "10.0.0.1",
+					},
+				},
+			},
+		}}}), "demo", "10.0.0.1"},
+
+		// search the correct node
+		{testclient.NewSimpleClientset(&apiv1.NodeList{Items: []apiv1.Node{
+			{
+				ObjectMeta: metav1.ObjectMeta{
+					Name: "demo1",
+				},
+				Status: apiv1.NodeStatus{
+					Addresses: []apiv1.NodeAddress{
+						{
+							Type:    apiv1.NodeInternalIP,
+							Address: "10.0.0.1",
+						},
+					},
+				},
+			},
+			{
+				ObjectMeta: metav1.ObjectMeta{
+					Name: "demo2",
+				},
+				Status: apiv1.NodeStatus{
+					Addresses: []apiv1.NodeAddress{
+						{
+							Type:    apiv1.NodeInternalIP,
+							Address: "10.0.0.2",
+						},
+					},
+				},
+			},
+		}}), "demo2", "10.0.0.2"},
+
+		// get NodeExternalIP
+		{testclient.NewSimpleClientset(&apiv1.NodeList{Items: []apiv1.Node{{
+			ObjectMeta: metav1.ObjectMeta{
+				Name: "demo",
+			},
+			Status: apiv1.NodeStatus{
+				Addresses: []apiv1.NodeAddress{
+					{
+						Type:    apiv1.NodeInternalIP,
+						Address: "10.0.0.1",
+					}, {
+						Type:    apiv1.NodeExternalIP,
+						Address: "10.0.0.2",
+					},
+				},
+			},
+		}}}), "demo", "10.0.0.2"},
+
+		// get NodeInternalIP
+		{testclient.NewSimpleClientset(&apiv1.NodeList{Items: []apiv1.Node{{
+			ObjectMeta: metav1.ObjectMeta{
+				Name: "demo",
+			},
+			Status: apiv1.NodeStatus{
+				Addresses: []apiv1.NodeAddress{
+					{
+						Type:    apiv1.NodeExternalIP,
+						Address: "",
+					}, {
+						Type:    apiv1.NodeInternalIP,
+						Address: "10.0.0.2",
+					},
+				},
+			},
+		}}}), "demo", "10.0.0.2"},
+	}
+
+	for _, fk := range fKNodes {
+		address := GetNodeIP(fk.cs, fk.n)
+		if address != fk.ea {
+			t.Errorf("expected %s, but returned %s", fk.ea, address)
+		}
+	}
+}
+
+func TestGetPodDetails(t *testing.T) {
+	// POD_NAME & POD_NAMESPACE not exist
+	os.Setenv("POD_NAME", "")
+	os.Setenv("POD_NAMESPACE", "")
+	_, err1 := GetPodDetails(testclient.NewSimpleClientset())
+	if err1 == nil {
+		t.Errorf("expected an error but returned nil")
+	}
+
+	// POD_NAME not exist
+	os.Setenv("POD_NAME", "")
+	os.Setenv("POD_NAMESPACE", apiv1.NamespaceDefault)
+	_, err2 := GetPodDetails(testclient.NewSimpleClientset())
+	if err2 == nil {
+		t.Errorf("expected an error but returned nil")
+	}
+
+	// POD_NAMESPACE not exist
+	os.Setenv("POD_NAME", "testpod")
+	os.Setenv("POD_NAMESPACE", "")
+	_, err3 := GetPodDetails(testclient.NewSimpleClientset())
+	if err3 == nil {
+		t.Errorf("expected an error but returned nil")
+	}
+
+	// POD not exist
+	os.Setenv("POD_NAME", "testpod")
+	os.Setenv("POD_NAMESPACE", apiv1.NamespaceDefault)
+	_, err4 := GetPodDetails(testclient.NewSimpleClientset())
+	if err4 == nil {
+		t.Errorf("expected an error but returned nil")
+	}
+
+	// success to get PodInfo
+	fkClient := testclient.NewSimpleClientset(
+		&apiv1.PodList{Items: []apiv1.Pod{{
+			ObjectMeta: metav1.ObjectMeta{
+				Name:      "testpod",
+				Namespace: apiv1.NamespaceDefault,
+				Labels: map[string]string{
+					"first":  "first_label",
+					"second": "second_label",
+				},
+			},
+		}}},
+		&apiv1.NodeList{Items: []apiv1.Node{{
+			ObjectMeta: metav1.ObjectMeta{
+				Name: "demo",
+			},
+			Status: apiv1.NodeStatus{
+				Addresses: []apiv1.NodeAddress{
+					{
+						Type:    apiv1.NodeInternalIP,
+						Address: "10.0.0.1",
+					},
+				},
+			},
+		}}})
+
+	epi, err5 := GetPodDetails(fkClient)
+	if err5 != nil {
+		t.Errorf("expected a PodInfo but returned error")
+		return
+	}
+
+	if epi == nil {
+		t.Errorf("expected a PodInfo but returned nil")
+	}
+}