diff --git a/src/Illuminate/Mail/Mailable.php b/src/Illuminate/Mail/Mailable.php
index 868f06270a44..49fee04e9182 100644
--- a/src/Illuminate/Mail/Mailable.php
+++ b/src/Illuminate/Mail/Mailable.php
@@ -143,7 +143,6 @@ class Mailable implements MailableContract, Renderable
      */
     public $embeds = [];
 
-
     /**
      * The raw embedded attachments for the message.
      *
@@ -151,7 +150,6 @@ class Mailable implements MailableContract, Renderable
      */
     public $rawEmbeds = [];
 
-
     /**
      * The tags for the message.
      *
diff --git a/src/Illuminate/Notifications/Messages/MailMessage.php b/src/Illuminate/Notifications/Messages/MailMessage.php
index 58ad595fe58d..3367a127d16b 100644
--- a/src/Illuminate/Notifications/Messages/MailMessage.php
+++ b/src/Illuminate/Notifications/Messages/MailMessage.php
@@ -91,7 +91,6 @@ class MailMessage extends SimpleMessage implements Renderable
      */
     public $embeds = [];
 
-
     /**
      * The raw embedded attachments for the message.
      *
diff --git a/tests/Mail/MailMailableTest.php b/tests/Mail/MailMailableTest.php
index c9b143baab1d..980d24f8b54e 100644
--- a/tests/Mail/MailMailableTest.php
+++ b/tests/Mail/MailMailableTest.php
@@ -578,7 +578,7 @@ public function toMailAttachment()
             }
         });
 
-        $this->assertSame(__DIR__.'/foo.jpg' , $mailable->embeds[0]);
+        $this->assertSame(__DIR__.'/foo.jpg', $mailable->embeds[0]);
     }
 }
 
diff --git a/tests/Mail/MailMessageTest.php b/tests/Mail/MailMessageTest.php
index 86e79ef6849f..056f5537c1d9 100755
--- a/tests/Mail/MailMessageTest.php
+++ b/tests/Mail/MailMessageTest.php
@@ -96,9 +96,9 @@ public function testBasicAttachment()
         $attachment = $this->message->getSymfonyMessage()->getAttachments()[0];
         $headers = $attachment->getPreparedHeaders()->toArray();
         $this->assertSame('expected attachment body', $attachment->getBody());
-        $this->assertSame("Content-Type: image/png; name=bar.jpg", $headers[0]);
+        $this->assertSame('Content-Type: image/png; name=bar.jpg', $headers[0]);
         $this->assertSame('Content-Transfer-Encoding: base64', $headers[1]);
-        $this->assertSame("Content-Disposition: attachment; name=bar.jpg; filename=bar.jpg", $headers[2]);
+        $this->assertSame('Content-Disposition: attachment; name=bar.jpg; filename=bar.jpg', $headers[2]);
 
         unlink($path);
     }
@@ -110,9 +110,9 @@ public function testDataAttachment()
         $attachment = $this->message->getSymfonyMessage()->getAttachments()[0];
         $headers = $attachment->getPreparedHeaders()->toArray();
         $this->assertSame('expected attachment body', $attachment->getBody());
-        $this->assertSame("Content-Type: image/png; name=foo.jpg", $headers[0]);
+        $this->assertSame('Content-Type: image/png; name=foo.jpg', $headers[0]);
         $this->assertSame('Content-Transfer-Encoding: base64', $headers[1]);
-        $this->assertSame("Content-Disposition: attachment; name=foo.jpg; filename=foo.jpg", $headers[2]);
+        $this->assertSame('Content-Disposition: attachment; name=foo.jpg; filename=foo.jpg', $headers[2]);
     }
 
     public function testItAttachesFilesViaAttachableContractFromPath()
@@ -132,9 +132,9 @@ public function toMailAttachment()
         $attachment = $this->message->getSymfonyMessage()->getAttachments()[0];
         $headers = $attachment->getPreparedHeaders()->toArray();
         $this->assertSame('expected attachment body', $attachment->getBody());
-        $this->assertSame("Content-Type: image/png; name=bar.jpg", $headers[0]);
+        $this->assertSame('Content-Type: image/png; name=bar.jpg', $headers[0]);
         $this->assertSame('Content-Transfer-Encoding: base64', $headers[1]);
-        $this->assertSame("Content-Disposition: attachment; name=bar.jpg; filename=bar.jpg", $headers[2]);
+        $this->assertSame('Content-Disposition: attachment; name=bar.jpg; filename=bar.jpg', $headers[2]);
 
         unlink($path);
     }
@@ -153,9 +153,9 @@ public function toMailAttachment()
         $attachment = $this->message->getSymfonyMessage()->getAttachments()[0];
         $headers = $attachment->getPreparedHeaders()->toArray();
         $this->assertSame('expected attachment body', $attachment->getBody());
-        $this->assertSame("Content-Type: image/png; name=foo.jpg", $headers[0]);
+        $this->assertSame('Content-Type: image/png; name=foo.jpg', $headers[0]);
         $this->assertSame('Content-Transfer-Encoding: base64', $headers[1]);
-        $this->assertSame("Content-Disposition: attachment; name=foo.jpg; filename=foo.jpg", $headers[2]);
+        $this->assertSame('Content-Disposition: attachment; name=foo.jpg; filename=foo.jpg', $headers[2]);
     }
 
     public function testBasicEmbed()
@@ -182,9 +182,9 @@ public function testDataEmbed()
         $attachment = $this->message->getSymfonyMessage()->getAttachments()[0];
         $headers = $attachment->getPreparedHeaders()->toArray();
         $this->assertSame('expected attachment body', $attachment->getBody());
-        $this->assertSame("Content-Type: image/png; name=foo.jpg", $headers[0]);
+        $this->assertSame('Content-Type: image/png; name=foo.jpg', $headers[0]);
         $this->assertSame('Content-Transfer-Encoding: base64', $headers[1]);
-        $this->assertSame("Content-Disposition: inline; name=foo.jpg; filename=foo.jpg", $headers[2]);
+        $this->assertSame('Content-Disposition: inline; name=foo.jpg; filename=foo.jpg', $headers[2]);
     }
 
     public function testItEmbedsFilesViaAttachableContractFromPath()
diff --git a/tests/Notifications/NotificationMailMessageTest.php b/tests/Notifications/NotificationMailMessageTest.php
index 589eb98eda64..aeb7ef0da079 100644
--- a/tests/Notifications/NotificationMailMessageTest.php
+++ b/tests/Notifications/NotificationMailMessageTest.php
@@ -353,6 +353,6 @@ public function toMailAttachment()
             }
         });
 
-        $this->assertSame(__DIR__.'/foo.jpg' , $mailMessage->embeds[0]);
+        $this->assertSame(__DIR__.'/foo.jpg', $mailMessage->embeds[0]);
     }
 }