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