ruby each_line reads line break too?

Yes, each_line includes line breaks. But you can strip them easily using chomp:

File.foreach('test1.rb') do |line|
  send line.chomp
end

Another way is to map strip onto each line as it is returned. To read a file line-by-line, stripping whitespace and do something with each line you can do the following:

File.open("path to file").readlines.map(&:strip).each do |line|
   (do something with line)
end