diff options
Diffstat (limited to 'spec/ruby/core/mutex/lock_spec.rb')
-rw-r--r-- | spec/ruby/core/mutex/lock_spec.rb | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/spec/ruby/core/mutex/lock_spec.rb b/spec/ruby/core/mutex/lock_spec.rb new file mode 100644 index 0000000000..98deabe056 --- /dev/null +++ b/spec/ruby/core/mutex/lock_spec.rb @@ -0,0 +1,46 @@ +require File.expand_path('../../../spec_helper', __FILE__) + +describe "Mutex#lock" do + before :each do + ScratchPad.clear + end + + it "returns self" do + m = Mutex.new + m.lock.should == m + m.unlock + end + + it "waits if the lock is not available" do + m = Mutex.new + + m.lock + + th = Thread.new do + m.lock + ScratchPad.record :after_lock + end + + Thread.pass while th.status and th.status != "sleep" + + ScratchPad.recorded.should be_nil + m.unlock + th.join + ScratchPad.recorded.should == :after_lock + end + + # Unable to find a specific ticket but behavior change may be + # related to this ML thread. + it "raises a ThreadError when used recursively" do + m = Mutex.new + + th = Thread.new do + m.lock + m.lock + end + + lambda do + th.join + end.should raise_error(ThreadError) + end +end |