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Diffstat (limited to 'spec/ruby/library/conditionvariable/signal_spec.rb')
-rw-r--r-- | spec/ruby/library/conditionvariable/signal_spec.rb | 77 |
1 files changed, 0 insertions, 77 deletions
diff --git a/spec/ruby/library/conditionvariable/signal_spec.rb b/spec/ruby/library/conditionvariable/signal_spec.rb deleted file mode 100644 index 86383073f1..0000000000 --- a/spec/ruby/library/conditionvariable/signal_spec.rb +++ /dev/null @@ -1,77 +0,0 @@ -require_relative '../../spec_helper' -require 'thread' - -describe "ConditionVariable#signal" do - it "releases the first thread waiting in line for this resource" do - m = Mutex.new - cv = ConditionVariable.new - threads = [] - r1 = [] - r2 = [] - - # large number to attempt to cause race conditions - 100.times do |i| - threads << Thread.new(i) do |tid| - m.synchronize do - r1 << tid - cv.wait(m) - r2 << tid - end - end - end - - # wait for all threads to acquire the mutex the first time - Thread.pass until m.synchronize { r1.size == threads.size } - # wait until all threads are sleeping (ie waiting) - Thread.pass until threads.all?(&:stop?) - - r2.should be_empty - 100.times do |i| - m.synchronize do - cv.signal - end - Thread.pass until r2.size == i+1 - end - - threads.each {|t| t.join } - - # ensure that all the threads that went into the cv.wait are - # released in the same order - r2.should == r1 - end - - it "allows control to be passed between a pair of threads" do - m = Mutex.new - cv = ConditionVariable.new - repeats = 100 - in_synchronize = false - - t1 = Thread.new do - m.synchronize do - in_synchronize = true - repeats.times do - cv.wait(m) - cv.signal - end - end - end - - # Make sure t1 is waiting for a signal before launching t2. - Thread.pass until in_synchronize - Thread.pass until t1.stop? - - t2 = Thread.new do - m.synchronize do - repeats.times do - cv.signal - cv.wait(m) - end - end - end - - # Check that both threads terminated without exception - t1.join - t2.join - m.should_not.locked? - end -end |