envs := env.List("MINIO_")
	envValues := make(map[string]string, len(envs))
	for _, envK := range envs {
		// skip certain environment variables as part
		// of the whitelist and could be configured
		// differently on each nodes, update skipEnvs()
		// map if there are such environment values
		if _, ok := skipEnvs[envK]; ok {
			continue
		}
		envValues[envK] = logger.HashString(env.Get(envK, ""))
	}

	}
}

// Tests user agent string.
func TestUserAgent(t *testing.T) {
	testCases := []struct {
		envName     string
		envValue    string
		mode        string
		expectedStr string
	}{
		{
			envName:     "",
			envValue:    "",
			mode:        globalMinioModeFS,