Check status field value after patch (#22)

exercises/07_threads/10_patch/tests/check.rs

@@ -26,5 +26,6 @@ fn works() {
     client.update(patch).unwrap();
 
     let ticket = client.get(ticket_id).unwrap().unwrap();
-    assert_eq!(ticket_id, ticket.id);
+    assert_eq!(ticket.id, ticket_id);
+    assert_eq!(ticket.status, Status::InProgress);
 }