dowsing for spec ordering issues

spec-dowser.rb

# encoding: utf-8

SEED = 6514
BASE_CMD = "bundle exec rspec --fail-fast --seed #{SEED}"

all_potential_files = Dir['spec/controllers/**/*_spec.rb', 'spec/features/**/*_spec.rb']
definitely_involved = ['spec/controllers/concerns/x.rb', 'spec/features/y.rb']
potential_files = all_potential_files.to_a - definitely_involved

def attempt(files)
  cmd = ([BASE_CMD] + files).join(" ")
  puts "\e[32mTrying #{cmd}\e[0m"
  success = system(cmd)
  unless success
    puts "Failed: with \n  #{files.join("\n  ")}"
    raise "Found it!"
  end
end


# try one file at a time
(0...potential_files.length).each do |i|
  files = definitely_involved + [potential_files[i]]
  attempt(files)
end

# try adding one file at a time
(0...potential_files.length).each do |i|
  files = definitely_involved + potential_files[0..i]
  attempt(files)
end