Avoid issues by declaring the constant name

spec/cucumber/core/event_spec.rb

@@ -20,18 +20,22 @@
   end
 
   describe 'a generated event' do
-    before do
-      # Needed to be set this way because of a name inflection in the method
-      Object.const_set('MyEventType', Class.new(described_class.new(:foo, :bar)))
+    let(:my_event_type) do
+      Class.new(described_class.new(:foo, :bar)) do
+        # Anonymous classes don't respond to .name. So we override it!
+        def self.name
+          'Cucumber::Core::MyEventType'
+        end
+      end
     end
 
     it 'can be converted to a hash' do
-      expect(MyEventType.new(1, 2).to_h).to eq(foo: 1, bar: 2)
+      expect(my_event_type.new(1, 2).to_h).to eq(foo: 1, bar: 2)
     end
 
     it 'has an event_id' do
-      expect(MyEventType.event_id).to eq(:my_event_type)
-      expect(MyEventType.new(1, 2).event_id).to eq(:my_event_type)
+      expect(my_event_type.event_id).to eq(:my_event_type)
+      expect(my_event_type.new(1, 2).event_id).to eq(:my_event_type)
     end
   end
 end