func Test_ItParsesValuesFromEnvironmentalVariables(t *testing.T) {
os.Setenv("CONFIGR_T1", "1")
os.Setenv("CONFIGR_T2_T21", "2")
os.Setenv("CONFIGR_T2_T22_T221", "true")
config := configr.New()
config.AddSource(sources.NewEnvVars("configr"))
config.RequireKey("t1", "")
config.RequireKey("t2.t21", "")
config.RequireKey("t2.t22.t221", "")
config.RegisterKey("t3", "", 3)
assert.NoError(t, config.Parse())
t1, err := config.String("t1")
assert.NoError(t, err)
t2t21, err := config.Float64("t2.t21")
assert.NoError(t, err)
t2t22t221, err := config.Bool("t2.t22.t221")
assert.NoError(t, err)
t3, err := config.Int("t3")
assert.NoError(t, err)
assert.Equal(t, "1", t1)
assert.Equal(t, float64(2), t2t21)
assert.Equal(t, true, t2t22t221)
assert.Equal(t, 3, t3)
}
func main() {
configr.AddSource(sources.NewEnvVars("configr"))
if err := configr.Parse(); err != nil {
fmt.Println(err)
os.Exit(1)
}
fromAddress, err := configr.String(EmailFromAddressKey)
if err != nil {
fmt.Println(err)
os.Exit(1)
}
emailSubject, err := configr.String(EmailSubjectKey)
if err != nil {
fmt.Println(err)
os.Exit(1)
}
retryOnFail, err := configr.Bool(EmailRetryOnFailKey)
if err != nil {
fmt.Println(err)
os.Exit(1)
}
maxRetries, err := configr.Int(EmailMaxRetriesKey)
if err != nil {
fmt.Println(err)
os.Exit(1)
}
email := Email{
FromAddress: fromAddress,
Subject: emailSubject,
MaxRetries: maxRetries,
RetryOnFail: retryOnFail,
}
fmt.Printf("Values:\n\t%#v\n\n", email)
}