Remove unnecessary exception.

Author: felixarntz

src/Messages/DTO/MessagePart.php

@@ -298,11 +298,6 @@ public function toArray(): array
     public static function fromArray(array $array): self
     {
         if (isset($array[self::KEY_CHANNEL])) {
-            if (!MessagePartChannelEnum::isValidValue($array[self::KEY_CHANNEL])) {
-                throw new InvalidArgumentException(
-                    sprintf('Invalid channel value: %s', $array[self::KEY_CHANNEL])
-                );
-            }
             $channel = MessagePartChannelEnum::from($array[self::KEY_CHANNEL]);
         } else {
             $channel = null;

tests/unit/Messages/DTO/MessagePartTest.php

@@ -427,7 +427,9 @@ public function testCreateWithDifferentChannels(): void
     public function testFromArrayWithInvalidChannel(): void
     {
         $this->expectException(InvalidArgumentException::class);
-        $this->expectExceptionMessage('Invalid channel value: invalid_channel');
+        $this->expectExceptionMessage(
+            'invalid_channel is not a valid backing value for enum ' . MessagePartChannelEnum::class
+        );
 
         $json = [
             MessagePart::KEY_CHANNEL => 'invalid_channel',