diff --git a/heroesofddd_rails_application/test/lib/heroes/creature_recruitment/read/dwelling_read_model_application_test.rb b/heroesofddd_rails_application/test/lib/heroes/creature_recruitment/read/dwelling_read_model_application_test.rb
index 222faaa..96fb5a4 100644
--- a/heroesofddd_rails_application/test/lib/heroes/creature_recruitment/read/dwelling_read_model_application_test.rb
+++ b/heroesofddd_rails_application/test/lib/heroes/creature_recruitment/read/dwelling_read_model_application_test.rb
@@ -29,7 +29,7 @@ def test_create_on_dwelling_built
                                                       creature_id: @creature_id,
                                                       available_creatures: 0,
                                                       cost_per_troop: @cost_per_troop)
-        assert_equal expected_state, state
+        assert_read_models_equal expected_state, state
       end
 
       def test_update_on_available_creatures_changed
@@ -46,7 +46,7 @@ def test_update_on_available_creatures_changed
                                                       creature_id: @creature_id,
                                                       available_creatures: 99,
                                                       cost_per_troop: @cost_per_troop)
-        assert_equal expected_state, state
+        assert_read_models_equal expected_state, state
       end
 
       def test_update_on_creature_recruited
@@ -64,7 +64,7 @@ def test_update_on_creature_recruited
                                                       creature_id: @creature_id,
                                                       available_creatures: 98,
                                                       cost_per_troop: @cost_per_troop)
-        assert_equal expected_state, state
+        assert_read_models_equal expected_state, state
       end
 
       def default_app_context
diff --git a/heroesofddd_rails_application/test/test_helper.rb b/heroesofddd_rails_application/test/test_helper.rb
index 6951018..459a08d 100644
--- a/heroesofddd_rails_application/test/test_helper.rb
+++ b/heroesofddd_rails_application/test/test_helper.rb
@@ -64,4 +64,10 @@ def assert_event_with_data(stream_stored_events, stored_event, data)
     end
     assert matching_event, "Expected to find a #{stored_event} event with data #{data}, but none was found."
   end
+
+  def assert_read_models_equal(expected_state, current_state)
+    excluded_attributes = %w[id created_at updated_at lock_version]
+    assert_equal expected_state.attributes.except(*excluded_attributes),
+                 current_state.attributes.except(*excluded_attributes)
+  end
 end