reformat code

src/Entities/Subscriber.php

@@ -313,7 +313,7 @@ class Subscriber extends ArrayCollection
     }
 
     /**
-     * @return ?bool
+     * @return null|bool
      * @throws BaseException
      */
     public function persist(): ?bool
@@ -350,7 +350,7 @@ class Subscriber extends ArrayCollection
 
         $addTags = array_diff($this->getTags()->toArray(), $currentTags->toArray());
         if (count($addTags)) {
-            $this->endpoint->tag( $this->getEmailAddress(), array_diff( $this->getTags()->toArray(), $currentTags->toArray() ) );
+            $this->endpoint->tag($this->getEmailAddress(), $addTags);
         }
     }
 

src/Entities/Tag.php

@@ -59,10 +59,10 @@ class Tag extends ArrayCollection
     }
 
     /**
-     * @return bool
+     * @return null|bool
      * @throws BaseException
      */
-    public function persist(): bool
+    public function persist(): ?bool
     {
         return $this->endpoint?->update(
             $this->getId(),

tests/unit/Entities/SubscriberTest.php

@@ -626,8 +626,7 @@ class SubscriberTest extends TestCase
         ?array $newTagList,
         InvokedCount $removeTagInvocation,
         InvokedCount $setTagInvocation
-    )
+    ) {
-    {
         $entityMock = $this->getMockBuilder(Subscriber::class)
             ->disableOriginalConstructor()
             ->onlyMethods(['getTags'])
@@ -646,7 +645,9 @@ class SubscriberTest extends TestCase
         $endpointMock->expects($removeTagInvocation)->method('untag')->willReturn(true);
 
         $sut = new Subscriber(['id' => 'foo', 'email' => 'mymail@mydomain.tld'], $endpointSet ? $endpointMock : null);
-        if ($newTagList) $sut->set('tags', $newTagList);
+        if ($newTagList) {
+            $sut->set('tags', $newTagList);
+        }
 
         $this->callMethod(
             $sut,