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Diffstat (limited to 'spec/ruby/library/monitor/new_cond_spec.rb')
-rw-r--r-- | spec/ruby/library/monitor/new_cond_spec.rb | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/spec/ruby/library/monitor/new_cond_spec.rb b/spec/ruby/library/monitor/new_cond_spec.rb new file mode 100644 index 0000000000..ec25d3f8a2 --- /dev/null +++ b/spec/ruby/library/monitor/new_cond_spec.rb @@ -0,0 +1,88 @@ +require_relative '../../spec_helper' +require 'monitor' + +describe "Monitor#new_cond" do + it "creates a MonitorMixin::ConditionVariable" do + m = Monitor.new + c = m.new_cond + c.class.should == MonitorMixin::ConditionVariable + end + + it 'returns a condition variable which can be waited on by a thread holding the monitor' do + m = Monitor.new + c = m.new_cond + + 10.times do + + wait_q = Queue.new + thread = Thread.new do + m.synchronize do + wait_q << true + c.wait + end + :done + end + + wait_q.pop + + # Synchronize can't happen until the other thread is waiting. + m.synchronize { c.signal } + + thread.join + thread.value.should == :done + end + end + + it 'returns a condition variable which can be waited on by a thread holding the monitor inside multiple synchronize blocks' do + m = Monitor.new + c = m.new_cond + + 10.times do + + wait_q = Queue.new + thread = Thread.new do + m.synchronize do + m.synchronize do + wait_q << true + c.wait + end + end + :done + end + + wait_q.pop + + #No need to wait here as we cannot synchronize until the other thread is waiting. + m.synchronize { c.signal } + + thread.join + thread.value.should == :done + end + end + + it 'returns a condition variable which can be signalled by a thread holding the monitor inside multiple synchronize blocks' do + m = Monitor.new + c = m.new_cond + + 10.times do + + wait_q = Queue.new + thread = Thread.new do + m.synchronize do + wait_q << true + c.wait + end + :done + end + + wait_q.pop + + # Synchronize can't happen until the other thread is waiting. + m.synchronize { m.synchronize { c.signal } } + + thread.join + thread.value.should == :done + end + end + +end |