ruby/spec/rubyspec/core/process/setpgrp_spec.rb
eregon 95e8c48dd3 Add in-tree mspec and ruby/spec
* For easier modifications of ruby/spec by MRI developers.
* .gitignore: track changes under spec.
* spec/mspec, spec/rubyspec: add in-tree mspec and ruby/spec.
  These files can therefore be updated like any other file in MRI.
  Instructions are provided in spec/README.
  [Feature #13156] [ruby-core:79246]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58595 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2017-05-07 12:04:49 +00:00

37 lines
1 KiB
Ruby

require File.expand_path('../../../spec_helper', __FILE__)
# TODO: put these in the right files.
describe "Process.setpgrp and Process.getpgrp" do
platform_is_not :windows do
it "sets and gets the process group ID of the calling process" do
# there are two synchronization points here:
# One for the child to let the parent know that it has finished
# setting its process group;
# and another for the parent to let the child know that it's ok to die.
read1, write1 = IO.pipe
read2, write2 = IO.pipe
pid = Process.fork do
read1.close
write2.close
Process.setpgrp
write1 << Process.getpgrp
write1.close
read2.read(1)
read2.close
Process.exit!
end
write1.close
read2.close
pgid = read1.read # wait for child to change process groups
read1.close
begin
Process.getpgid(pid).should == pgid.to_i
ensure
write2 << "!"
write2.close
Process.wait pid
end
end
end
end