Add test for custom ID

Author: kainxspirits

tests/Unit/Jobs/PubSubJobTests.php

@@ -21,7 +21,7 @@ public function teardown()
     public function setUp()
     {
         $this->messageId = '1234';
-        $this->messageData = json_encode(['foo' => 'bar']);
+        $this->messageData = json_encode(['id' => $this->messageId, 'foo' => 'bar']);
         $this->messageEncodedData = base64_encode($this->messageData);
 
         $this->container = $this->createMock(Container::class);

tests/Unit/PubSubQueueTests.php

@@ -23,7 +23,7 @@ public function teardown()
 
     public function setUp()
     {
-        $this->result = ['message-id'];
+        $this->result = 'message-id';
 
         $this->topic = $this->createMock(Topic::class);
         $this->client = $this->createMock(PubSubClient::class);
@@ -81,7 +81,9 @@ public function testPushRaw()
         $queue->method('subscribeToTopic')
             ->willReturn($this->subscription);
 
-        $this->assertEquals($this->result, $queue->pushRaw('test'));
+        $payload = base64_encode(json_encode(['id' => $this->result]));
+
+        $this->assertEquals($this->result, $queue->pushRaw($payload));
     }
 
     public function testLater()