diff options
Diffstat (limited to 'spec/ruby/core/mutex/try_lock_spec.rb')
-rw-r--r-- | spec/ruby/core/mutex/try_lock_spec.rb | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/spec/ruby/core/mutex/try_lock_spec.rb b/spec/ruby/core/mutex/try_lock_spec.rb new file mode 100644 index 0000000000..3e875ff9ec --- /dev/null +++ b/spec/ruby/core/mutex/try_lock_spec.rb @@ -0,0 +1,32 @@ +require File.expand_path('../../../spec_helper', __FILE__) + +describe "Mutex#try_lock" do + describe "when unlocked" do + it "returns true" do + m = Mutex.new + m.try_lock.should be_true + end + + it "locks the mutex" do + m = Mutex.new + m.try_lock + m.locked?.should be_true + end + end + + describe "when locked by the current thread" do + it "returns false" do + m = Mutex.new + m.lock + m.try_lock.should be_false + end + end + + describe "when locked by another thread" do + it "returns false" do + m = Mutex.new + m.lock + Thread.new { m.try_lock }.value.should be_false + end + end +end |