spec/inputs/elasticsearch_spec.rb in logstash-input-elasticsearch-4.3.0 vs spec/inputs/elasticsearch_spec.rb in logstash-input-elasticsearch-4.3.1

@@ -123,10 +123,10 @@
         plugin.run([])
       end
     end
 
     context 'without slices directive' do
-      let(:config) { super().except('slices') }
+      let(:config) { super.tap { |h| h.delete('slices') } }
       it 'runs just one slice' do
         expect(plugin).to receive(:do_run_slice).with(duck_type(:<<))
         expect(Thread).to_not receive(:new)
 
         plugin.register