1 files changed, 25 insertions, 0 deletions
diff --git a/spec/ruby/library/conditionvariable/wait_spec.rb b/spec/ruby/library/conditionvariable/wait_spec.rb
new file mode 100644
index 0000000000..ddf6474212
--- /dev/null
+++ b/spec/ruby/library/conditionvariable/wait_spec.rb
@@ -0,0 +1,25 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+require 'thread'
+
+describe "ConditionVariable#wait" do
+  it "returns self" do
+    m = Mutex.new
+    cv = ConditionVariable.new
+    in_synchronize = false
+
+    th = Thread.new do
+      m.synchronize do
+        in_synchronize = true
+        cv.wait(m).should == cv
+      end
+    end
+
+    # wait for m to acquire the mutex
+    Thread.pass until in_synchronize
+    # wait until th is sleeping (ie waiting)
+    Thread.pass while th.status and th.status != "sleep"
+
+    m.synchronize { cv.signal }
+    th.join
+  end
+end