37 lines
677 B
Ruby
37 lines
677 B
Ruby
require_relative '../../spec_helper'
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describe "Mutex#locked?" do
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it "returns true if locked" do
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m = Mutex.new
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m.lock
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m.locked?.should be_true
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end
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it "returns false if unlocked" do
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m = Mutex.new
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m.locked?.should be_false
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end
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it "returns the status of the lock" do
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m1 = Mutex.new
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m2 = Mutex.new
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m2.lock # hold th with only m1 locked
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m1_locked = false
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th = Thread.new do
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m1.lock
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m1_locked = true
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m2.lock
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end
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Thread.pass until m1_locked
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m1.locked?.should be_true
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m2.unlock # release th
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th.join
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# A Thread releases its locks upon termination
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m1.locked?.should be_false
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end
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end
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