Add errors_outside_of_examples_count to json output (#2448)

We run rspec in several workers and summarize their results
using JSON output, so it is useful if the JSON includes
errors_outside_of_examples_count information.

Author: abicky

lib/rspec/core/formatters/json_formatter.rb

@@ -26,7 +26,8 @@ def dump_summary(summary)
             :duration => summary.duration,
             :example_count => summary.example_count,
             :failure_count => summary.failure_count,
-            :pending_count => summary.pending_count
+            :pending_count => summary.pending_count,
+            :errors_outside_of_examples_count => summary.errors_outside_of_examples_count
           }
           @output_hash[:summary_line] = summary.totals_line
         end

spec/rspec/core/formatters/json_formatter_spec.rb

@@ -85,6 +85,7 @@
         :example_count => 3,
         :failure_count => 1,
         :pending_count => 1,
+        :errors_outside_of_examples_count => 0,
       },
       :summary_line => "3 examples, 1 failure, 1 pending"
     }
@@ -139,13 +140,13 @@
 
   describe "#dump_summary" do
     it "adds summary info to the output hash" do
-      send_notification :dump_summary, summary_notification(1.0, examples(10), examples(3), examples(4), 0)
+      send_notification :dump_summary, summary_notification(1.0, examples(10), examples(3), examples(4), 0, 1)
       expect(formatter.output_hash[:summary]).to include(
         :duration => 1.0, :example_count => 10, :failure_count => 3,
-        :pending_count => 4
+        :pending_count => 4, :errors_outside_of_examples_count => 1
       )
       summary_line = formatter.output_hash[:summary_line]
-      expect(summary_line).to eq "10 examples, 3 failures, 4 pending"
+      expect(summary_line).to eq "10 examples, 3 failures, 4 pending, 1 error occurred outside of examples"
     end
   end