istio.io/istio@v0.0.0-20240520182934-d79c90f27776/istioctl/pkg/injector/injector-list_test.go (about)

     1  // Copyright Istio Authors
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package injector
    16  
    17  import (
    18  	"context"
    19  	"fmt"
    20  	"testing"
    21  
    22  	corev1 "k8s.io/api/core/v1"
    23  	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
    24  	"k8s.io/apimachinery/pkg/runtime"
    25  
    26  	"istio.io/api/annotation"
    27  	"istio.io/api/label"
    28  	"istio.io/istio/pkg/config/constants"
    29  	"istio.io/istio/pkg/kube"
    30  	"istio.io/istio/pkg/test/util/assert"
    31  	"istio.io/istio/pkg/util/sets"
    32  )
    33  
    34  func Test_extractRevisionFromPod(t *testing.T) {
    35  	cases := []struct {
    36  		name             string
    37  		pod              *corev1.Pod
    38  		expectedRevision string
    39  	}{
    40  		{
    41  			name:             "no rev",
    42  			pod:              &corev1.Pod{},
    43  			expectedRevision: "",
    44  		},
    45  		{
    46  			name: "has rev annotation",
    47  			pod: &corev1.Pod{
    48  				ObjectMeta: metav1.ObjectMeta{
    49  					Annotations: map[string]string{
    50  						annotation.SidecarStatus.Name: `{"revision": "test-anno"}`,
    51  					},
    52  				},
    53  			},
    54  			expectedRevision: "test-anno",
    55  		},
    56  		{
    57  			name: "has both rev label and annotation, use label",
    58  			pod: &corev1.Pod{
    59  				ObjectMeta: metav1.ObjectMeta{
    60  					Labels: map[string]string{
    61  						label.IoIstioRev.Name: "test-label", // don't care about the label
    62  					},
    63  					Annotations: map[string]string{
    64  						annotation.SidecarStatus.Name: `{"revision":"test-anno"}`,
    65  					},
    66  				},
    67  			},
    68  			expectedRevision: "test-anno",
    69  		},
    70  	}
    71  	for i, c := range cases {
    72  		t.Run(fmt.Sprintf("case %d %s", i, c.name), func(t *testing.T) {
    73  			assert.Equal(t, c.expectedRevision, extractRevisionFromPod(c.pod))
    74  		})
    75  	}
    76  }
    77  
    78  func Test_getNamespaces(t *testing.T) {
    79  	createNamespace := func(name string, labels map[string]string) *corev1.Namespace {
    80  		return &corev1.Namespace{
    81  			ObjectMeta: metav1.ObjectMeta{
    82  				Name:   name,
    83  				Labels: labels,
    84  			},
    85  		}
    86  	}
    87  	nss := []runtime.Object{
    88  		createNamespace("default", nil),
    89  		createNamespace("kube-system", nil),
    90  		createNamespace("istio-system", nil),
    91  		createNamespace("ambient", map[string]string{
    92  			constants.DataplaneModeLabel: constants.DataplaneModeAmbient,
    93  		}),
    94  		createNamespace("no-ambient", map[string]string{
    95  			constants.DataplaneModeLabel: constants.DataplaneModeAmbient,
    96  			"istio-injection":            "enabled",
    97  		}),
    98  	}
    99  
   100  	client := kube.NewFakeClient(nss...)
   101  	expected := sets.New[string]("default", "no-ambient")
   102  	actual, err := getNamespaces(context.TODO(), client, "istio-system")
   103  	assert.NoError(t, err)
   104  	for _, ns := range actual {
   105  		assert.Equal(t, true, expected.Contains(ns.Name))
   106  	}
   107  }