Fix #13 - Passing notification instead of notifiable (#14)

* Pass notifiable instead of notification, update test

* Remove focus group for dev testing

Author: frankieeedeee

src/GoogleChatChannel.php

@@ -42,7 +42,7 @@ public function send($notifiable, Notification $notification)
         }
 
         /** @var \NotificationChannels\GoogleChat\GoogleChatMessage $message */
-        if (! ($message = $notification->toGoogleChat($notification)) instanceof GoogleChatMessage) {
+        if (! ($message = $notification->toGoogleChat($notifiable)) instanceof GoogleChatMessage) {
             throw CouldNotSendNotification::invalidMessage($message);
         }
 

tests/GoogleChatChannelTest.php

@@ -30,13 +30,13 @@ public function test_it_rejects_sending_when_non_google_chat_message_supplied()
         $notification = $this->createMock(TestNotification::class);
         $notification->expects($this->once())
         ->method('toGoogleChat')
-        ->withAnyParameters()
+        ->with('notifiable')
         ->willReturn('This value is invalid, as it is not an instance of Google Chat Message');
 
         $this->expectException(CouldNotSendNotification::class);
         $this->expectExceptionMessage("Expected a message instance of type NotificationChannels\GoogleChat\GoogleChatMessage - Actually received string");
 
-        $this->newChannel()->send('foo', $notification);
+        $this->newChannel()->send('notifiable', $notification);
     }
 
     public function test_it_rejects_sending_when_no_space_configured()