output_sample.txt

------------------------------------------------
              Top failing specs                 
------------------------------------------------
 18 | ./spec/models/my_model_spec.rb
  4 | ./spec/models/your_failing_model_spec.rb

top_failing_specs.rb

RSpec.configure do |config|
  failed_examples = {}
  config.after(:each) do |group|
    if group.example.instance_variable_get("@exception")
      failed_examples[group.example.metadata[:file_path]] ||= 0
      failed_examples[group.example.metadata[:file_path]] = failed_examples[group.example.metadata[:file_path]] + 1
    end
  end

  config.after(:suite) do
    puts '------------------------------------------------'
    puts '              Top failing specs                 '
    puts '------------------------------------------------'
    failed_examples.sort_by {|k,v| v}.reverse.each do |k,v|
      puts "#{v.to_s.rjust(3)} | #{k}"
    end
    puts '------------------------------------------------'
  end
end