auth.go

@@ -4,11 +4,7 @@
 
 package mail
 
-import (
+import "errors"
-	"errors"
-	"fmt"
-	"strings"
-)
 
 // SMTPAuthType is a type wrapper for a string type. It represents the type of SMTP authentication
 // mechanism to be used.
@@ -138,33 +134,3 @@ var (
 	// authentication type.
 	ErrSCRAMSHA256PLUSAuthNotSupported = errors.New("server does not support SMTP AUTH type: SCRAM-SHA-256-PLUS")
 )
-
-// UnmarshalString satisfies the fig.StringUnmarshaler interface for the SMTPAuthType type
-// https://pkg.go.dev/github.com/kkyr/fig#StringUnmarshaler
-func (sa *SMTPAuthType) UnmarshalString(value string) error {
-	switch strings.ToLower(value) {
-	case "cram-md5", "crammd5", "cram":
-		*sa = SMTPAuthCramMD5
-	case "custom":
-		*sa = SMTPAuthCustom
-	case "login":
-		*sa = SMTPAuthLogin
-	case "none", "noauth", "no":
-		*sa = SMTPAuthNoAuth
-	case "plain":
-		*sa = SMTPAuthPlain
-	case "scram-sha-1", "scram-sha1", "scramsha1":
-		*sa = SMTPAuthSCRAMSHA1
-	case "scram-sha-1-plus", "scram-sha1-plus", "scramsha1plus":
-		*sa = SMTPAuthSCRAMSHA1PLUS
-	case "scram-sha-256", "scram-sha256", "scramsha256":
-		*sa = SMTPAuthSCRAMSHA256
-	case "scram-sha-256-plus", "scram-sha256-plus", "scramsha256plus":
-		*sa = SMTPAuthSCRAMSHA256PLUS
-	case "xoauth2", "oauth2":
-		*sa = SMTPAuthXOAUTH2
-	default:
-		return fmt.Errorf("unsupported SMTP auth type: %s", value)
-	}
-	return nil
-}

auth_test.go

@@ -1,57 +0,0 @@
-// SPDX-FileCopyrightText: 2024 The go-mail Authors
-//
-// SPDX-License-Identifier: MIT
-
-package mail
-
-import "testing"
-
-func TestSMTPAuthType_UnmarshalString(t *testing.T) {
-	tests := []struct {
-		name       string
-		authString string
-		expected   SMTPAuthType
-	}{
-		{"CRAM-MD5: cram-md5", "cram-md5", SMTPAuthCramMD5},
-		{"CRAM-MD5: crammd5", "crammd5", SMTPAuthCramMD5},
-		{"CRAM-MD5: cram", "cram", SMTPAuthCramMD5},
-		{"CUSTOM", "custom", SMTPAuthCustom},
-		{"LOGIN", "login", SMTPAuthLogin},
-		{"NONE: none", "none", SMTPAuthNoAuth},
-		{"NONE: noauth", "noauth", SMTPAuthNoAuth},
-		{"NONE: no", "no", SMTPAuthNoAuth},
-		{"PLAIN", "plain", SMTPAuthPlain},
-		{"SCRAM-SHA-1: scram-sha-1", "scram-sha-1", SMTPAuthSCRAMSHA1},
-		{"SCRAM-SHA-1: scram-sha1", "scram-sha1", SMTPAuthSCRAMSHA1},
-		{"SCRAM-SHA-1: scramsha1", "scramsha1", SMTPAuthSCRAMSHA1},
-		{"SCRAM-SHA-1-PLUS: scram-sha-1-plus", "scram-sha-1-plus", SMTPAuthSCRAMSHA1PLUS},
-		{"SCRAM-SHA-1-PLUS: scram-sha1-plus", "scram-sha1-plus", SMTPAuthSCRAMSHA1PLUS},
-		{"SCRAM-SHA-1-PLUS: scramsha1plus", "scramsha1plus", SMTPAuthSCRAMSHA1PLUS},
-		{"SCRAM-SHA-256: scram-sha-256", "scram-sha-256", SMTPAuthSCRAMSHA256},
-		{"SCRAM-SHA-256: scram-sha256", "scram-sha256", SMTPAuthSCRAMSHA256},
-		{"SCRAM-SHA-256: scramsha256", "scramsha256", SMTPAuthSCRAMSHA256},
-		{"SCRAM-SHA-256-PLUS: scram-sha-256-plus", "scram-sha-256-plus", SMTPAuthSCRAMSHA256PLUS},
-		{"SCRAM-SHA-256-PLUS: scram-sha256-plus", "scram-sha256-plus", SMTPAuthSCRAMSHA256PLUS},
-		{"SCRAM-SHA-256-PLUS: scramsha256plus", "scramsha256plus", SMTPAuthSCRAMSHA256PLUS},
-		{"XOAUTH2: xoauth2", "xoauth2", SMTPAuthXOAUTH2},
-		{"XOAUTH2: oauth2", "oauth2", SMTPAuthXOAUTH2},
-	}
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			var authType SMTPAuthType
-			if err := authType.UnmarshalString(tt.authString); err != nil {
-				t.Errorf("UnmarshalString() for type %s failed: %s", tt.authString, err)
-			}
-			if authType != tt.expected {
-				t.Errorf("UnmarshalString() for type %s failed: expected %s, got %s",
-					tt.authString, tt.expected, authType)
-			}
-		})
-	}
-	t.Run("should fail", func(t *testing.T) {
-		var authType SMTPAuthType
-		if err := authType.UnmarshalString("invalid"); err == nil {
-			t.Error("UnmarshalString() should have failed")
-		}
-	})
-}