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require_relative '../../spec_helper'
describe "Process.waitall" do
before :all do
begin
Process.waitall
rescue NotImplementedError
end
end
it "returns an empty array when there are no children" do
Process.waitall.should == []
end
it "takes no arguments" do
lambda { Process.waitall(0) }.should raise_error(ArgumentError)
end
platform_is_not :windows do
it "waits for all children" do
pids = []
pids << Process.fork { Process.exit! 2 }
pids << Process.fork { Process.exit! 1 }
pids << Process.fork { Process.exit! 0 }
Process.waitall
pids.each { |pid|
lambda { Process.kill(0, pid) }.should raise_error(Errno::ESRCH)
}
end
it "returns an array of pid/status pairs" do
pids = []
pids << Process.fork { Process.exit! 2 }
pids << Process.fork { Process.exit! 1 }
pids << Process.fork { Process.exit! 0 }
a = Process.waitall
a.should be_kind_of(Array)
a.size.should == 3
pids.each { |pid|
pid_status = a.assoc(pid)
pid_status.should be_kind_of(Array)
pid_status.size.should == 2
pid_status.first.should == pid
pid_status.last.should be_kind_of(Process::Status)
}
end
end
end
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