diff options
Diffstat (limited to 'spec/ruby/shared/queue/deque.rb')
-rw-r--r-- | spec/ruby/shared/queue/deque.rb | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/spec/ruby/shared/queue/deque.rb b/spec/ruby/shared/queue/deque.rb new file mode 100644 index 0000000000..3590f367ba --- /dev/null +++ b/spec/ruby/shared/queue/deque.rb @@ -0,0 +1,85 @@ +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 "removes an item from a closed queue" do + q = @object.call + q << 1 + q.close + q.send(@method).should == 1 + end + + it "returns nil for a closed empty queue" do + q = @object.call + q.close + q.send(@method).should == nil + end + + it "returns nil for an empty queue that becomes closed" do + q = @object.call + + t = Thread.new { + q.send(@method).should == nil + } + + Thread.pass until t.status == "sleep" && q.num_waiting == 1 + q.close + t.join + end + + describe "in non-blocking mode" do + it "removes an item from the queue" do + q = @object.call + q << Object.new + q.size.should == 1 + q.send(@method, true) + q.size.should == 0 + end + + it "raises a ThreadError if the queue is empty" do + q = @object.call + lambda { q.send(@method, true) }.should raise_error(ThreadError) + end + + it "removes an item from a closed queue" do + q = @object.call + q << 1 + q.close + q.send(@method, true).should == 1 + end + + it "raises a ThreadError for a closed empty queue" do + q = @object.call + q.close + lambda { q.send(@method, true) }.should raise_error(ThreadError) + end + end +end |