fix: add tests for callback url and correct codestyle

Author: stijnbernards

src/PushoverMessage.php

@@ -87,7 +87,8 @@ class PushoverMessage
     public string|null $image = null;
     /**
      * The (optional) publicly-accessible url that Pushover will use to notify your system when a user
-     * acknowledges an Emergency notification
+     * acknowledges an Emergency notification.
+     *
      * @var string|null
      */
     public string|null $callback = null;
@@ -332,9 +333,9 @@ public function emergencyPriority(int $retryTimeout, int $expireAfter): static
 
     /**
      * Set the callback url used by pushover to let your system
-     * know when a emergency notification has been acknowledged
+     * know when a emergency notification has been acknowledged.
      *
-     * @param string $url
+     * @param  string  $url
      * @return $this
      */
     public function callback(string $url): static
@@ -364,7 +365,7 @@ public function toArray(): array
             'expire' => $this->expire,
             'html' => $this->format === static::FORMAT_HTML,
             'monospace' => $this->format === static::FORMAT_MONOSPACE,
-            'callback' => $this->callback
+            'callback' => $this->callback,
         ];
     }
 

tests/PushoverMessageTest.php

@@ -190,4 +190,13 @@ public function it_can_set_the_priority_to_emergency(): void
 
         $this->assertEquals(2, $this->message->priority);
     }
+
+    public function it_can_set_the_callback_url(): void
+    {
+        $callbackUrl = 'https://www.example.com/callback';
+
+        $this->message->callback($callbackUrl);
+
+        $this->assertEquals($callbackUrl, $this->message->callback);
+    }
 }