Simple Check for Valid Inbound Message:

- Just checing if a message ID is set.
- TODO: Should perhaps validate that it's a server request / id is from the reqeust data.

Author: tjlytle

src/Message/InboundMessage.php

@@ -91,6 +91,11 @@ public function getMessageId()
         return $this['messageId'];
     }
 
+    public function isValid()
+    {
+        return (bool) $this->getMessageId();
+    }
+
     public function getBody()
     {
         if($this->getRequest()){

test/Message/InboundMessageTest.php

@@ -27,10 +27,22 @@ public function testConstructionWithId()
      */
     public function testCanCreateWithServerRequest($request)
     {
-        $request = $this->getServerRequest('inbound-get');
         $message = new InboundMessage($request);
     }
 
+    public function testCanCheckValid()
+    {
+        $request = $this->getServerRequest();
+        $message = new InboundMessage($request);
+        
+        $this->assertTrue($message->isValid());
+        
+        $request = $this->getServerRequest('http://example.com', 'GET', 'invalid');
+        $message = new InboundMessage($request);
+
+        $this->assertFalse($message->isValid());
+    }
+    
     /**
      * Can access expected params via getters.
      * @dataProvider getRequests