symfony
diff --git a/‎src/Symfony/Component/HttpKernel/Controller/ArgumentResolver/DateTimeValueResolver.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/HttpKernel/Controller/ArgumentResolver/DateTimeValueResolver.php
+2-2Lines changed: 2 additions & 2 deletions b/‎src/Symfony/Component/HttpKernel/Controller/ArgumentResolver/DateTimeValueResolver.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/HttpKernel/Controller/ArgumentResolver/DateTimeValueResolver.php
+2-2Lines changed: 2 additions & 2 deletions
diff --git a/‎src/Symfony/Component/HttpKernel/Tests/Controller/ArgumentResolver/DateTimeValueResolverTest.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/HttpKernel/Tests/Controller/ArgumentResolver/DateTimeValueResolverTest.php
+19-6Lines changed: 19 additions & 6 deletions b/‎src/Symfony/Component/HttpKernel/Tests/Controller/ArgumentResolver/DateTimeValueResolverTest.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/HttpKernel/Tests/Controller/ArgumentResolver/DateTimeValueResolverTest.php
+19-6Lines changed: 19 additions & 6 deletions
@@ -39,9 +39,10 @@ public function supports(Request $request, ArgumentMetadata $argument): bool
     public function resolve(Request $request, ArgumentMetadata $argument): iterable
     {
         $value = $request->attributes->get($argument->getName());
+        $class = \DateTimeInterface::class === $argument->getType() ? \DateTimeImmutable::class : $argument->getType();
 
         if ($value instanceof \DateTimeInterface) {
-            yield $value;
+            yield $value instanceof $class ? $value : $class::createFromInterface($value);
 
             return;
         }
@@ -52,7 +53,6 @@ public function resolve(Request $request, ArgumentMetadata $argument): iterable
             return;
         }
 
-        $class = \DateTimeInterface::class === $argument->getType() ? \DateTimeImmutable::class : $argument->getType();
         $format = null;
 
         if ($attributes = $argument->getAttributes(MapDateTime::class, ArgumentMetadata::IS_INSTANCEOF)) {
 
@@ -20,7 +20,7 @@
 
 class DateTimeValueResolverTest extends TestCase
 {
-    private $defaultTimezone;
+    private readonly string $defaultTimezone;
 
     protected function setUp(): void
     {
@@ -32,13 +32,20 @@ protected function tearDown(): void
         date_default_timezone_set($this->defaultTimezone);
     }
 
-    public function getTimeZones()
+    public static function getTimeZones()
     {
         yield ['UTC'];
         yield ['Etc/GMT+9'];
         yield ['Etc/GMT-14'];
     }
 
+    public static function getClasses()
+    {
+        yield [\DateTimeInterface::class];
+        yield [\DateTime::class];
+        yield [FooDateTime::class];
+    }
+
     public function testSupports()
     {
         $resolver = new DateTimeValueResolver();
@@ -133,19 +140,25 @@ public function testNow(string $timezone)
         $this->assertSame($timezone, $results[0]->getTimezone()->getName(), 'Default timezone');
     }
 
-    public function testPreviouslyConvertedAttribute()
+    /**
+     * @param class-string<\DateTimeInterface> $class
+     *
+     * @dataProvider getClasses
+     */
+    public function testPreviouslyConvertedAttribute(string $class)
     {
         $resolver = new DateTimeValueResolver();
 
-        $argument = new ArgumentMetadata('dummy', \DateTime::class, false, false, null, true);
+        $argument = new ArgumentMetadata('dummy', $class, false, false, null, true);
         $request = self::requestWithAttributes(['dummy' => $datetime = new \DateTime()]);
 
         /** @var \Generator $results */
         $results = $resolver->resolve($request, $argument);
         $results = iterator_to_array($results);
 
         $this->assertCount(1, $results);
-        $this->assertSame($datetime, $results[0]);
+        $this->assertEquals($datetime, $results[0], 'The value is the same, but the class can be modified.');
+        $this->assertInstanceOf($class, $results[0]);
     }
 
     public function testCustomClass()
@@ -209,7 +222,7 @@ public function testWithFormat(string $timezone)
         $this->assertEquals('2016-09-08 12:34:56', $results[0]->format('Y-m-d H:i:s'));
     }
 
-    public function provideInvalidDates()
+    public static function provideInvalidDates()
     {
         return [
             'invalid date' => [
Original file line number	Diff line number	Diff line change
`@@ -39,9 +39,10 @@ public function supports(Request $request, ArgumentMetadata $argument): bool`
`39`	`39`	`public function resolve(Request $request, ArgumentMetadata $argument): iterable`
`40`	`40`	`{`
`41`	`41`	`$value = $request->attributes->get($argument->getName());`
	`42`	`+ $class = \DateTimeInterface::class === $argument->getType() ? \DateTimeImmutable::class : $argument->getType();`
`42`	`43`
`43`	`44`	`if ($value instanceof \DateTimeInterface) {`
`44`		`- yield $value;`
	`45`	`+ yield $value instanceof $class ? $value : $class::createFromInterface($value);`
`45`	`46`
`46`	`47`	`return;`
`47`	`48`	`}`
`@@ -52,7 +53,6 @@ public function resolve(Request $request, ArgumentMetadata $argument): iterable`
`52`	`53`	`return;`
`53`	`54`	`}`
`54`	`55`
`55`		`- $class = \DateTimeInterface::class === $argument->getType() ? \DateTimeImmutable::class : $argument->getType();`
`56`	`56`	`$format = null;`
`57`	`57`
`58`	`58`	`if ($attributes = $argument->getAttributes(MapDateTime::class, ArgumentMetadata::IS_INSTANCEOF)) {`