2e76ac31fd
T.Setenv ensures that the environment is returned to its prior state when the test ends. It also panics when called from a parallel test to prevent racy test interdependencies.
78 lines
1.7 KiB
Go
78 lines
1.7 KiB
Go
/*
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Copyright 2019 The Kubernetes Authors.
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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 main
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import (
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"os"
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"testing"
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)
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func TestEnv(t *testing.T) {
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testCases := []struct {
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desc string
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preHook func()
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env Getenver
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expect map[string]string
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}{
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{
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desc: "OS env",
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env: &osEnv{},
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preHook: func() {
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t.Setenv("key1", "1")
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},
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expect: map[string]string{"key1": "1"},
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}, {
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desc: "OS env falls defaults to empty",
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env: &osEnv{},
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preHook: func() {
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os.Unsetenv("key1")
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},
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expect: map[string]string{"key1": ""},
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}, {
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desc: "First choice of env respected",
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env: &defaultEnver{
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firstChoice: &explicitEnv{
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vals: map[string]string{
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"key1": "1",
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},
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},
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defaults: map[string]string{
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"key1": "default1",
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"key2": "default2",
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},
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},
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expect: map[string]string{
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"key1": "1",
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"key2": "default2",
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},
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},
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}
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for _, tc := range testCases {
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t.Run(tc.desc, func(t *testing.T) {
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for k, expectVal := range tc.expect {
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if tc.preHook != nil {
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tc.preHook()
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}
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val := tc.env.Getenv(k)
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if val != expectVal {
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t.Errorf("Expected %q but got %q", expectVal, val)
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}
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}
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})
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}
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}
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