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require File.expand_path('../../../spec_helper', __FILE__)
describe "Process.setsid" do
with_feature :fork do
it "establishes this process as a new session and process group leader" do
read, write = IO.pipe
read2, write2 = IO.pipe
pid = Process.fork {
begin
read.close
write2.close
pgid = Process.setsid
write << pgid
write.close
read2.gets
rescue Exception => e
write << e << e.backtrace
end
Process.exit!
}
write.close
read2.close
pgid_child = Integer(read.gets)
read.close
platform_is_not :aix, :openbsd do
# AIX does not allow Process.getsid(pid)
# if pid is in a different session.
pgid = Process.getsid(pid)
pgid_child.should == pgid
end
write2.close
Process.wait pid
pgid_child.should_not == Process.getsid
end
end
end
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