Fixed enum mapping validation

lib/Doctrine/ORM/Tools/SchemaValidator.php

@@ -406,6 +406,25 @@ function (array $fieldMapping) use ($class): ?string {
                             );
                         }
 
+                        if (
+                            isset($fieldMapping['enumType'])
+                            && $propertyType !== $fieldMapping['enumType']
+                            && interface_exists($propertyType)
+                            && is_a($fieldMapping['enumType'], $propertyType, true)
+                        ) {
+                            if ($metadataFieldType === (string) (new ReflectionEnum($fieldMapping['enumType']))->getBackingType()) {
+                                return null;
+                            }
+
+                            return sprintf(
+                                "The field '%s#%s' has the metadata enumType '%s' that differs from the metadata field type '%s'.",
+                                $class->name,
+                                $fieldName,
+                                $fieldMapping['enumType'],
+                                $metadataFieldType
+                            );
+                        }
+
                         if (
                             $fieldMapping['type'] === 'json'
                             && in_array($propertyType, ['string', 'int', 'float', 'bool', 'true', 'false', 'null'], true)

tests/Doctrine/Tests/ORM/Functional/Ticket/GH11037/EntityStatus.php

@@ -0,0 +1,9 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Doctrine\Tests\ORM\Functional\Ticket\GH11037;
+
+interface EntityStatus
+{
+}

tests/Doctrine/Tests/ORM/Functional/Ticket/GH11037/GH11037Test.php

@@ -42,6 +42,7 @@ public function testMetadataFieldTypeNotCoherentWithEntityPropertyType(): void
             [
                 "The field 'Doctrine\Tests\ORM\Functional\Ticket\GH11037\InvalidEntityWithTypedEnum#status1' has the property type 'Doctrine\Tests\ORM\Functional\Ticket\GH11037\StringEntityStatus' that differs from the metadata field type 'int' returned by the 'integer' DBAL type.",
                 "The field 'Doctrine\Tests\ORM\Functional\Ticket\GH11037\InvalidEntityWithTypedEnum#status2' has the property type 'Doctrine\Tests\ORM\Functional\Ticket\GH11037\IntEntityStatus' that differs from the metadata enumType 'Doctrine\Tests\ORM\Functional\Ticket\GH11037\StringEntityStatus'.",
+                "The field 'Doctrine\Tests\ORM\Functional\Ticket\GH11037\InvalidEntityWithTypedEnum#status3' has the metadata enumType 'Doctrine\Tests\ORM\Functional\Ticket\GH11037\StringEntityStatus' that differs from the metadata field type 'int'.",
             ],
             $ce
         );

tests/Doctrine/Tests/ORM/Functional/Ticket/GH11037/InvalidEntityWithTypedEnum.php

@@ -28,4 +28,9 @@ class InvalidEntityWithTypedEnum
      * @Column(type="integer", enumType=StringEntityStatus::class)
      */
     protected IntEntityStatus $status2;
+
+    /**
+     * @Column(type="integer", enumType=StringEntityStatus::class)
+     */
+    protected EntityStatus $status3;
 }

tests/Doctrine/Tests/ORM/Functional/Ticket/GH11037/StringEntityStatus.php

@@ -4,7 +4,7 @@
 
 namespace Doctrine\Tests\ORM\Functional\Ticket\GH11037;
 
-enum StringEntityStatus: string
+enum StringEntityStatus: string implements EntityStatus
 {
     case ACTIVE   = 'active';
     case INACTIVE = 'inactive';

tests/Doctrine/Tests/ORM/Functional/Ticket/GH11037/ValidEntityWithTypedEnum.php

@@ -28,4 +28,9 @@ class ValidEntityWithTypedEnum
      * @Column(type="smallint", enumType=IntEntityStatus::class)
      */
     protected IntEntityStatus $status2;
+
+    /**
+     * @Column(type="string", enumType=StringEntityStatus::class)
+     */
+    protected EntityStatus $status3;
 }