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# File 'lib/cleanser.rb', line 8
def find_polluter(files, options={})
failing = files.pop
expand_folders(files, failing)
if !files.include?(failing)
abort "Files have to include the failing file"
elsif files.size < 2
abort "Files have to be more than 2"
elsif !success?([failing], options)
abort "#{failing} fails when run on it's own"
elsif success?(files, options)
abort "tests pass locally"
else
loop do
a = remove_from(files, files.size / 2, :not => failing)
b = files - (a - [failing])
status, files = find_polluter_set([a, b], failing, options)
if status == :finished
puts "Fails when #{files.join(", ")} are run together"
return true
elsif status == :continue
next
else
abort "unable to isolate failure to 2 files"
end
end
end
end
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