Track failed examples.

Author: ioquatix

spec/spec_helper.rb

@@ -13,3 +13,8 @@
 Slack.configure do |config|
   config.token = ENV['SLACK_API_TOKEN']
 end
+
+RSpec.configure do |config|
+  # Enable flags like --only-failures and --next-failure
+  config.example_status_persistence_file_path = ".rspec_status"
+end