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|
require "../spec_helper"
# interpreter doesn't support threads yet (#14287)
pending_interpreted describe: Thread::Mutex do
it "synchronizes" do
a = 0
mutex = Thread::Mutex.new
threads = Array.new(10) do
Thread.new do
mutex.synchronize { a += 1 }
end
end
threads.each(&.join)
a.should eq(10)
end
it "won't lock recursively" do
mutex = Thread::Mutex.new
mutex.try_lock.should be_true
mutex.try_lock.should be_false
expect_raises(RuntimeError) { mutex.lock }
mutex.unlock
Thread.new { mutex.synchronize { } }.join
end
it "won't unlock from another thread" do
mutex = Thread::Mutex.new
mutex.lock
expect_raises(RuntimeError) do
Thread.new { mutex.unlock }.join
end
mutex.unlock
end
end
|
