airshipctl/pkg/util/env_test.go
Ruslan Aliev 3c53dcabdf Add util functions to set/unset env variables
Proposed util functions can set variable amount of env vars at once,
covered with unit tests and handles possible errors in more convenient
way.

Change-Id: Ibd31f528fba1b10be49d1e8cc5e5f29c6b3d902a
Signed-off-by: Ruslan Aliev <raliev@mirantis.com>
2021-04-22 11:13:49 -05:00

117 lines
2.5 KiB
Go
Executable File

/*
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
https://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 util_test
import (
"bytes"
"os"
"testing"
"github.com/stretchr/testify/require"
"opendev.org/airship/airshipctl/pkg/log"
"opendev.org/airship/airshipctl/pkg/util"
)
func TestSetenv(t *testing.T) {
tests := []struct {
name string
input []util.EnvVar
expectedOut string
}{
{
name: "success one env",
input: []util.EnvVar{{
Key: "AIRSHIPCTL_TEST_KEY",
Value: "AIRSHIPCTL_TEST_VALUE",
}},
expectedOut: "",
},
{
name: "success multiple envs",
input: []util.EnvVar{{
Key: "AIRSHIPCTL_TEST_KEY_1",
Value: "AIRSHIPCTL_TEST_VALUE_1",
}, {
Key: "AIRSHIPCTL_TEST_KEY_2",
Value: "AIRSHIPCTL_TEST_VALUE_2"}},
expectedOut: "",
},
{
name: "fail to set",
input: []util.EnvVar{{
Key: "invalid_key\x00",
}},
expectedOut: "unable to set 'invalid_key\x00' env variable, reason 'setenv: invalid argument'",
},
}
buf := &bytes.Buffer{}
log.Init(false, buf)
for _, tt := range tests {
tt := tt
t.Run(tt.name, func(t *testing.T) {
buf.Reset()
util.Setenv(tt.input...)
require.Contains(t, buf.String(), tt.expectedOut)
if tt.expectedOut == "" {
for _, key := range tt.input {
require.Equal(t, key.Value, os.Getenv(key.Key))
}
}
})
}
}
func TestUnsetenv(t *testing.T) {
tests := []struct {
name string
input []util.EnvVar
expectedOut string
}{
{
name: "success one env",
input: []util.EnvVar{{
Key: "AIRSHIPCTL_TEST_KEY",
}},
expectedOut: "",
},
{
name: "success multiple envs",
input: []util.EnvVar{{
Key: "AIRSHIPCTL_TEST_KEY_1",
}, {
Key: "AIRSHIPCTL_TEST_KEY_2"}},
expectedOut: "",
},
}
buf := &bytes.Buffer{}
log.Init(false, buf)
for _, tt := range tests {
tt := tt
t.Run(tt.name, func(t *testing.T) {
buf.Reset()
util.Unsetenv(tt.input...)
require.Contains(t, buf.String(), tt.expectedOut)
if tt.expectedOut == "" {
for _, key := range tt.input {
require.Equal(t, "", os.Getenv(key.Key))
}
}
})
}
}