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require File.expand_path('../../../spec_helper', __FILE__)
describe "Process.setpriority" do
# Needs a valid version written for Linux
platform_is :os => :darwin do
it "sets the scheduling priority for a specified process" do
p = Process.getpriority(Process::PRIO_PROCESS, 0)
Process.setpriority(mock_int(Process::PRIO_PROCESS),
mock_int(0),
mock_int(p + 1)).should == 0
Process.getpriority(Process::PRIO_PROCESS, 0).should == (p + 1)
if Process.uid == 0
Process.setpriority(Process::PRIO_PROCESS, 0, p).should == 0
else
lambda {
Process.setpriority(Process::PRIO_PROCESS, 0, p)
}.should raise_error(Errno::EACCES)
end
end
end
# Darwin and FreeBSD don't seem to handle these at all, getting all out of
# whack with either permission errors or just the wrong value
platform_is_not :os => [:darwin, :freebsd, :windows] do
it "sets the scheduling priority for a specified process group" do
pr = Process.getpriority(Process::PRIO_PGRP, 0)
Process.setpriority(Process::PRIO_PGRP, 0, pr + 1).should == 0
Process.getpriority(Process::PRIO_PGRP, 0).should == (pr + 1)
if Process.uid == 0
Process.setpriority(Process::PRIO_PGRP, 0, pr).should == 0
else
# EACCESS is not always raised. It's a stupid OS behavior.
ok = false
begin
Process.setpriority(Process::PRIO_PGRP, 0, pr)
ok = true
rescue Errno::EACCES
ok = true
rescue Object
ok = false
end
ok.should == true
end
end
end
platform_is_not :os => :windows do
as_superuser do
it "sets the scheduling priority for a specified user" do
p = Process.getpriority(Process::PRIO_USER, 0)
Process.setpriority(Process::PRIO_USER, 0, p + 1).should == 0
Process.getpriority(Process::PRIO_USER, 0).should == (p + 1)
Process.setpriority(Process::PRIO_USER, 0, p).should == 0
end
end
end
end
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