Added support to read outside error count returned from XML formatter.

lib/rspec_junit_formatter.rb

@@ -20,7 +20,7 @@ def xml_dump
     output << %{ tests="#{example_count}"}
     output << %{ skipped="#{pending_count}"}
     output << %{ failures="#{failure_count}"}
-    output << %{ errors="0"}
+    output << %{ errors="#{error_count}"}
     output << %{ time="#{escape("%.6f" % duration)}"}
     output << %{ timestamp="#{escape(started.iso8601)}"}
     output << %{ hostname="#{escape(Socket.gethostname)}"}

lib/rspec_junit_formatter/rspec2.rb

@@ -64,6 +64,10 @@ def failure_for(example)
     "#{message}\n#{backtrace.join("\n")}"
   end
 
+  def error_count
+    0
+  end
+
   def find_shared_group(example)
     group_and_parent_groups(example).find { |group| group.metadata[:shared_group_name] }
   end

lib/rspec_junit_formatter/rspec3.rb

@@ -45,6 +45,15 @@ def examples
     @examples_notification.notifications
   end
 
+  def error_count
+    # Introduced in rspec 3.6
+    if @summary_notification.respond_to?(:errors_outside_of_examples_count)
+      @summary_notification.errors_outside_of_examples_count
+    else
+      0
+    end
+  end
+
   def result_of(notification)
     notification.example.execution_result.status
   end