Add in-tree mspec and ruby/spec

* For easier modifications of ruby/spec by MRI developers.
* .gitignore: track changes under spec.
* spec/mspec, spec/rubyspec: add in-tree mspec and ruby/spec.
  These files can therefore be updated like any other file in MRI.
  Instructions are provided in spec/README.
  [Feature #13156] [ruby-core:79246]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58595 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 37 insertions, 0 deletions

diff --git a/spec/rubyspec/library/thread/shared/queue/deque.rb b/spec/rubyspec/library/thread/shared/queue/deque.rb
new file mode 100644
index 0000000000..1b06dffa2c
--- /dev/null
+++ b/spec/rubyspec/library/thread/shared/queue/deque.rb
@@ -0,0 +1,37 @@
+describe :queue_deq, shared: true do
+  it "removes an item from the Queue" do
+    q = @object.call
+    q << Object.new
+    q.size.should == 1
+    q.send(@method)
+    q.size.should == 0
+  end
+
+  it "returns items in the order they were added" do
+    q = @object.call
+    q << 1
+    q << 2
+    q.send(@method).should == 1
+    q.send(@method).should == 2
+  end
+
+  it "blocks the thread until there are items in the queue" do
+    q = @object.call
+    v = 0
+
+    th = Thread.new do
+      q.send(@method)
+      v = 1
+    end
+
+    v.should == 0
+    q << Object.new
+    th.join
+    v.should == 1
+  end
+
+  it "raises a ThreadError if Queue is empty" do
+    q = @object.call
+    lambda { q.send(@method,true) }.should raise_error(ThreadError)
+  end
+end