ensure nil is returned

Andrej Jančič · Andrej Jančič · commit 9a9c126df393 · 2017-07-31T15:00:59.000+02:00
diff --git a/spec/creatubbles/base_collection_spec.rb b/spec/creatubbles/base_collection_spec.rb
@@ -10,5 +10,8 @@
 
     expect{client.test_objects.find('non-existing-object-id', nil_404:true)}.
       not_to raise_error
+
+    expect(client.test_objects.find('non-existing-object-id', nil_404:true)).
+      to be_nil
   end
 end
