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require_relative '../../spec_helper'
# 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
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