forked from rook/rook
Eng Zer Jun
8a25b1d903
This commit replaces `os.Setenv` with `t.Setenv` in tests. The environment variable is automatically restored to its original value when the test and all its subtests complete. Reference: https://pkg.go.dev/testing#T.Setenv Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>
122 lines
3.8 KiB
Go
122 lines
3.8 KiB
Go
/*
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Copyright 2019 The Rook Authors. All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package k8sutil
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import (
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"context"
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"os"
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"testing"
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"github.com/stretchr/testify/assert"
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v1 "k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/api/errors"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/client-go/kubernetes/fake"
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)
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func TestDeleteConfigMap(t *testing.T) {
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k8s := fake.NewSimpleClientset()
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ctx := context.TODO()
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cm := &v1.ConfigMap{
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ObjectMeta: metav1.ObjectMeta{
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Name: "test-configmap",
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Namespace: "test-namespace",
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},
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Data: map[string]string{
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"test": "data",
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},
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}
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_, err := k8s.CoreV1().ConfigMaps("test-namespace").Create(ctx, cm, metav1.CreateOptions{})
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assert.NoError(t, err)
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// There is no need to test all permutations, as the `DeleteResource` function is already
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// tested. Setting Wait=true and ErrorOnTimeout=true will cause both the delete and verify
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// functions to be exercised, and it will return error if either fail with an unexpected error.
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opts := &DeleteOptions{}
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opts.Wait = true
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opts.ErrorOnTimeout = true
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err = DeleteConfigMap(ctx, k8s, "test-configmap", "test-namespace", opts)
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assert.NoError(t, err)
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_, err = k8s.CoreV1().ConfigMaps("test-namespace").Get(ctx, "test-configmap", metav1.GetOptions{})
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assert.Error(t, err)
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assert.True(t, errors.IsNotFound(err))
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}
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func TestGetOperatorSetting(t *testing.T) {
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k8s := fake.NewSimpleClientset()
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ctx := context.TODO()
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operatorSettingConfigMapName := "rook-operator-config"
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testNamespace := "test-namespace"
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cm := &v1.ConfigMap{
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ObjectMeta: metav1.ObjectMeta{
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Name: operatorSettingConfigMapName,
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Namespace: testNamespace,
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},
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Data: map[string]string{
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"NODE_AFFINITY": "storage=rook, worker",
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},
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}
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nodeAffinity := "NODE_AFFINITY"
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podAffinity := "POD_AFFINITY"
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envSettingValue := "role=storage-node"
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cmSettingValue := "storage=rook, worker"
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defaultValue := ""
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// ConfigMap is not found
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setting, err := GetOperatorSetting(ctx, k8s, operatorSettingConfigMapName, nodeAffinity, defaultValue)
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assert.NoError(t, err)
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// Env Var doesn't exist
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assert.Equal(t, defaultValue, setting)
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// Env Var exists
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t.Setenv(nodeAffinity, envSettingValue)
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setting, err = GetOperatorSetting(ctx, k8s, operatorSettingConfigMapName, nodeAffinity, defaultValue)
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assert.NoError(t, err)
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assert.Equal(t, envSettingValue, setting)
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// ConfigMap is found
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t.Setenv("POD_NAMESPACE", testNamespace)
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_, err = k8s.CoreV1().ConfigMaps(testNamespace).Create(ctx, cm, metav1.CreateOptions{})
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assert.NoError(t, err)
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// Setting exists in ConfigMap
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setting, err = GetOperatorSetting(ctx, k8s, operatorSettingConfigMapName, nodeAffinity, defaultValue)
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assert.NoError(t, err)
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// Env Var exists
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assert.Equal(t, cmSettingValue, setting)
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// Env Var doesn't exist
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err = os.Unsetenv(nodeAffinity)
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assert.NoError(t, err)
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assert.Equal(t, cmSettingValue, setting)
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// Setting doesn't exist in ConfigMap
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setting, err = GetOperatorSetting(ctx, k8s, operatorSettingConfigMapName, podAffinity, defaultValue)
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assert.NoError(t, err)
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// Env Var doesn't exist
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assert.Equal(t, defaultValue, setting)
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// Env Var exists
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t.Setenv(podAffinity, envSettingValue)
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setting, err = GetOperatorSetting(ctx, k8s, operatorSettingConfigMapName, podAffinity, defaultValue)
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assert.NoError(t, err)
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assert.Equal(t, envSettingValue, setting)
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}
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