psssix/golang-app
psssix/golang-app
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feat refactor config for default application

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This commit is contained in:
П$iх 2022-08-06 23:40:55 +03:00
parent cda5d0cff2
commit d87aed14f4
2 changed files with 41 additions and 45 deletions
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9
config/Config.go
View File

@ -15,10 +15,12 @@ type Config struct {
}
}
var cfg Config
var once sync.Once
var (
cfg Config //nolint:gochecknoglobals // singleton globals
once sync.Once //nolint:gochecknoglobals // singleton globals
)
// panic
// GetConfig can panic
func GetConfig() Config {
once.Do(func() {
err := cleanenv.ReadEnv(&cfg)
@ -26,5 +28,6 @@ func GetConfig() Config {
panic(err)
}
})
return cfg
}

77
config/Config_test.go
View File

@ -2,50 +2,47 @@ package config
import (
"github.com/stretchr/testify/assert"
"os"
"strconv"
"sync"
"testing"
)
func TestGetConfig(t *testing.T) {
telegramToken := ":: telegram telegram token ::"
telegramOwner := 1234567890
pathDictionaries := `docs/dictionaries`
const (
telegramToken = ":: telegram telegram token ::" //nolint:gosec // it is not real credentials
telegramOwner = 1234567890
pathDictionaries = `docs/dictionaries`
)
initTelegramBotEnvironment(telegramToken, telegramOwner, pathDictionaries)
defer cleanTelegramBotEnvironment()
func TestGetConfig(t *testing.T) { //nolint:paralleltest // because this test mock globals
initTelegramBotEnvironment(t, telegramToken, telegramOwner, pathDictionaries)
defer resetConfig(t)
var config Config
assert.NotPanics(t, func() { config = GetConfig() })
assert.NotEmpty(t, config)
assert.IsType(t, Config{}, config)
assert.NotNil(t, config)
assert.Equal(t, telegramToken, config.API.Token)
assert.Equal(t, telegramOwner, config.API.Owner)
assert.Equal(t, pathDictionaries, config.Paths.Docs)
}
func TestGetConfigTwice(t *testing.T) {
initTelegramBotEnvironment(":: telegram telegram token ::", 1234567890, `docs/dictionaries`)
defer cleanTelegramBotEnvironment()
func TestGetConfigTwice(t *testing.T) { //nolint:paralleltest // because this test mock globals
initTelegramBotEnvironment(t, telegramToken, telegramOwner, pathDictionaries)
defer resetConfig(t)
config1 := GetConfig()
config2 := GetConfig()
assert.NotEmpty(t, config1)
assert.NotEmpty(t, config2)
assert.NotNil(t, config1)
assert.NotNil(t, config2)
assert.Equal(t, config1, config2)
assert.NotSame(t, config1, config2)
}
func TestGetConfigAndSingletonIsImmutable(t *testing.T) {
telegramToken := ":: telegram telegram token ::"
telegramOwner := 1234567890
pathDictionaries := `docs/dictionaries`
initTelegramBotEnvironment(telegramToken, telegramOwner, pathDictionaries)
defer cleanTelegramBotEnvironment()
func TestGetConfigAndSingletonIsImmutable(t *testing.T) { //nolint:paralleltest // because this test mock globals
initTelegramBotEnvironment(t, telegramToken, telegramOwner, pathDictionaries)
defer resetConfig(t)
config1 := GetConfig()
@ -63,13 +60,12 @@ func TestGetConfigAndSingletonIsImmutable(t *testing.T) {
assert.Equal(t, pathDictionaries, config2.Paths.Docs)
}
func TestGetConfigWithOnlyRequiredEnvironment(t *testing.T) {
telegramToken := ":: telegram telegram token ::"
telegramOwner := 1234567890
func TestGetConfigWithOnlyRequiredEnvironment(t *testing.T) { //nolint:paralleltest // because this test mock globals
t.Setenv("TOKEN", telegramToken)
t.Setenv("OWNER", strconv.Itoa(telegramOwner))
_ = os.Setenv("TOKEN", telegramToken)
_ = os.Setenv("OWNER", strconv.Itoa(telegramOwner))
defer cleanTelegramBotEnvironment()
resetConfig(t)
defer resetConfig(t)
config := GetConfig()
@ -80,27 +76,24 @@ func TestGetConfigWithOnlyRequiredEnvironment(t *testing.T) {
assert.Equal(t, `docs`, config.Paths.Docs)
}
func TestGetConfigWithEmptyEnvironment(t *testing.T) {
cleanTelegramBotEnvironment()
func TestGetConfigWithEmptyEnvironment(t *testing.T) { //nolint:paralleltest // because this test mock globals
resetConfig(t)
defer resetConfig(t)
assert.Panics(t, func() { GetConfig() })
}
func initTelegramBotEnvironment(telegramToken string, telegramOwner int, pathDictionaries string) {
resetConfig()
_ = os.Setenv("TOKEN", telegramToken)
_ = os.Setenv("OWNER", strconv.Itoa(telegramOwner))
_ = os.Setenv("DOCS_PATH", pathDictionaries)
func initTelegramBotEnvironment(t *testing.T, telegramToken string, telegramOwner int, pathDictionaries string) {
t.Helper()
t.Setenv("TOKEN", telegramToken)
t.Setenv("OWNER", strconv.Itoa(telegramOwner))
t.Setenv("DOCS_PATH", pathDictionaries)
resetConfig(t)
}
func cleanTelegramBotEnvironment() {
_ = os.Unsetenv("TOKEN")
_ = os.Unsetenv("OWNER")
_ = os.Unsetenv("DOCS_PATH")
resetConfig()
}
func resetConfig(t *testing.T) {
t.Helper()
func resetConfig() {
cfg = Config{}
once = sync.Once{}
}
}