failures_during_run_formatter.rb

# http://gist.github.com/gists/593755 (fork of http://gist.github.com/485785)
require 'spec/runner/formatter/progress_bar_formatter'
class FailuresDuringRunFormatter < Spec::Runner::Formatter::ProgressBarFormatter
  def example_failed(example, counter, failure)
    super # show the 'F' in progress
    dump_failure(counter, failure)
  end
end

class Spec::Runner::Reporter
  def dump
    # No error messages after run as we print the errors as they occur
    
    # Newline and summary
    puts
    formatters.each do |f|
      f.dump_summary(duration, @example_count, @failures.length, @pending_count)
      f.close
    end
    @failures.length
  end
end