39 lines
845 B
Ruby
39 lines
845 B
Ruby
require File.expand_path('../../../spec_helper', __FILE__)
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describe "Mutex#unlock" do
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it "raises ThreadError unless Mutex is locked" do
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mutex = Mutex.new
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lambda { mutex.unlock }.should raise_error(ThreadError)
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end
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it "raises ThreadError unless thread owns Mutex" do
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mutex = Mutex.new
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wait = Mutex.new
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wait.lock
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th = Thread.new do
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mutex.lock
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wait.lock
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end
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# avoid race on mutex.lock
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Thread.pass until mutex.locked?
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Thread.pass while th.status and th.status != "sleep"
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lambda { mutex.unlock }.should raise_error(ThreadError)
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wait.unlock
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th.join
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end
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it "raises ThreadError if previously locking thread is gone" do
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mutex = Mutex.new
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th = Thread.new do
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mutex.lock
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end
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th.join
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lambda { mutex.unlock }.should raise_error(ThreadError)
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end
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end
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