/
env_test.go
89 lines (71 loc) · 2.73 KB
/
env_test.go
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/******************************************************************************
*
* Copyright 2022 SAP SE
*
* 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
*
* http://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.
*
******************************************************************************/
// This needs to be in a separate package to allow importing go-bits/assert
// without causing an import loop.
package osext_test
import (
"fmt"
"os"
"testing"
"github.com/sapcc/go-bits/assert"
"github.com/sapcc/go-bits/osext"
)
const KEY = "GOBITS_OSENV_FOO"
const VAL = "this is an example value"
const DEFAULT = "some default value"
func TestGetenv(t *testing.T) {
// test with string value
t.Setenv(KEY, VAL)
str, err := osext.NeedGetenv(KEY)
assert.DeepEqual(t, "result from NeedGetenv", str, VAL)
assert.DeepEqual(t, "error from NeedGetenv", err, nil)
str = osext.GetenvOrDefault(KEY, DEFAULT)
assert.DeepEqual(t, "result from GetenvOrDefault", str, VAL)
ok := osext.GetenvBool(KEY)
assert.DeepEqual(t, "result from GetenvBool", ok, false) // not a valid boolean literal -> false
// test with empty value
t.Setenv(KEY, "")
_, err = osext.NeedGetenv(KEY)
assert.DeepEqual(t, "error from NeedGetenv", err, osext.MissingEnvError{Key: KEY})
str = osext.GetenvOrDefault(KEY, DEFAULT)
assert.DeepEqual(t, "result from GetenvOrDefault", str, DEFAULT)
ok = osext.GetenvBool(KEY)
assert.DeepEqual(t, "result from GetenvBool", ok, false)
// test with null value
os.Unsetenv(KEY)
_, err = osext.NeedGetenv(KEY)
assert.DeepEqual(t, "error from NeedGetenv", err, osext.MissingEnvError{Key: KEY})
str = osext.GetenvOrDefault(KEY, DEFAULT)
assert.DeepEqual(t, "result from GetenvOrDefault", str, DEFAULT)
ok = osext.GetenvBool(KEY)
assert.DeepEqual(t, "result from GetenvBool", ok, false)
// test GetenvBool with explicitly true-ish values
for _, value := range []string{"t", "True", "1"} {
os.Setenv(KEY, value)
ok = osext.GetenvBool(KEY)
msg := fmt.Sprintf("result from GetenvBool for %q", value)
assert.DeepEqual(t, msg, ok, true)
}
// test GetenvBool with explicitly false-ish values
for _, value := range []string{"f", "False", "0"} {
os.Setenv(KEY, value)
ok = osext.GetenvBool(KEY)
msg := fmt.Sprintf("result from GetenvBool for %q", value)
assert.DeepEqual(t, msg, ok, false)
}
}