k8s.io/kubernetes@v1.31.0-alpha.0.0.20240520171757-56147500dadc/cmd/kubeadm/app/util/env_test.go (about)

     1  /*
     2  Copyright 2023 The Kubernetes Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package util
    18  
    19  import (
    20  	"testing"
    21  
    22  	"github.com/stretchr/testify/assert"
    23  
    24  	v1 "k8s.io/api/core/v1"
    25  
    26  	kubeadmapi "k8s.io/kubernetes/cmd/kubeadm/app/apis/kubeadm"
    27  )
    28  
    29  func TestMergeKubeadmEnvVars(t *testing.T) {
    30  	baseEnv := []kubeadmapi.EnvVar{}
    31  	extraEnv := []kubeadmapi.EnvVar{}
    32  	MergeKubeadmEnvVars(append(baseEnv, extraEnv...))
    33  	var tests = []struct {
    34  		name      string
    35  		proxyEnv  []kubeadmapi.EnvVar
    36  		extraEnv  []kubeadmapi.EnvVar
    37  		mergedEnv []v1.EnvVar
    38  	}{
    39  		{
    40  			name: "normal case without duplicated env",
    41  			proxyEnv: []kubeadmapi.EnvVar{
    42  				{
    43  					EnvVar: v1.EnvVar{Name: "Foo1", Value: "Bar1"},
    44  				},
    45  				{
    46  					EnvVar: v1.EnvVar{Name: "Foo2", Value: "Bar2"},
    47  				},
    48  			},
    49  			extraEnv: []kubeadmapi.EnvVar{
    50  				{
    51  					EnvVar: v1.EnvVar{Name: "Foo3", Value: "Bar3"},
    52  				},
    53  			},
    54  			mergedEnv: []v1.EnvVar{
    55  				{Name: "Foo1", Value: "Bar1"},
    56  				{Name: "Foo2", Value: "Bar2"},
    57  				{Name: "Foo3", Value: "Bar3"},
    58  			},
    59  		},
    60  		{
    61  			name: "extraEnv env take precedence over the proxyEnv",
    62  			proxyEnv: []kubeadmapi.EnvVar{
    63  				{
    64  					EnvVar: v1.EnvVar{Name: "Foo1", Value: "Bar1"},
    65  				},
    66  				{
    67  					EnvVar: v1.EnvVar{Name: "Foo2", Value: "Bar2"},
    68  				},
    69  			},
    70  			extraEnv: []kubeadmapi.EnvVar{
    71  				{
    72  					EnvVar: v1.EnvVar{Name: "Foo2", Value: "Bar3"},
    73  				},
    74  			},
    75  			mergedEnv: []v1.EnvVar{
    76  				{Name: "Foo1", Value: "Bar1"},
    77  				{Name: "Foo2", Value: "Bar3"},
    78  			},
    79  		},
    80  	}
    81  
    82  	for _, test := range tests {
    83  		t.Run(test.name, func(t *testing.T) {
    84  			envs := MergeKubeadmEnvVars(test.proxyEnv, test.extraEnv)
    85  			if !assert.ElementsMatch(t, envs, test.mergedEnv) {
    86  				t.Errorf("expected env: %v, got: %v", test.mergedEnv, envs)
    87  			}
    88  		})
    89  	}
    90  }