Add a FinishedTesting event

lib/cucumber/events/finished_testing.rb

@@ -0,0 +1,9 @@
+module Cucumber
+  module Events
+
+    # Event fired after aall test cases have finished executing
+    class FinishedTesting
+    end
+
+  end
+end

lib/cucumber/formatter/event_bus_report.rb

@@ -29,6 +29,7 @@ def after_test_case(test_case, result)
       end
 
       def done
+        @config.notify Events::FinishedTesting.new
       end
     end
 

spec/cucumber/formatter/event_bus_report_spec.rb

@@ -68,6 +68,15 @@ module Formatter
               expect(received_event.test_case.name).to eq "Test Scenario"
               expect(received_event.result).to be_passed
             end
+
+            it "emits a Done event when the test run is finished" do
+              received_event = nil
+              config.on_event Cucumber::Events::FinishedTesting do |event|
+                received_event = event
+              end
+              run_defined_feature
+              expect(received_event).not_to be_nil
+            end
           end
         end
       end