rb: Implement Thrift::UNIXSocket and Thrift::UNIXServerSocket

In benchmarking it turns out these don't give any noticeable performance boost,
but as I've already written them, somebody may want them for something.


git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@669019 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/lib/rb/spec/unixsocket_spec.rb b/lib/rb/spec/unixsocket_spec.rb
new file mode 100644
index 0000000..777ef04
--- /dev/null
+++ b/lib/rb/spec/unixsocket_spec.rb
@@ -0,0 +1,60 @@
+require File.dirname(__FILE__) + '/spec_helper'
+require 'thrift/transport/unixsocket'
+require File.dirname(__FILE__) + "/socket_spec_shared"
+
+class ThriftUNIXSocketSpec < Spec::ExampleGroup
+  include Thrift
+
+  describe UNIXSocket do
+    before(:each) do
+      @path = '/tmp/thrift_spec_socket'
+      @socket = UNIXSocket.new(@path)
+      @handle = mock("Handle", :closed? => false)
+      @handle.stub!(:close)
+      ::UNIXSocket.stub!(:new).and_return(@handle)
+    end
+
+    it_should_behave_like "a socket"
+
+    it "should raise a TransportException when it cannot open a socket" do
+      ::UNIXSocket.should_receive(:new).and_raise(StandardError)
+      lambda { @socket.open }.should raise_error(Thrift::TransportException) { |e| e.type.should == Thrift::TransportException::NOT_OPEN }
+    end
+  end
+
+  describe UNIXServerSocket do
+    before(:each) do
+      @path = '/tmp/thrift_spec_socket'
+      @socket = UNIXServerSocket.new(@path)
+    end
+
+    it "should create a handle when calling listen" do
+      UNIXServer.should_receive(:new).with(@path)
+      @socket.listen
+    end
+
+    it "should create a Thrift::UNIXSocket to wrap accepted sockets" do
+      handle = mock("UNIXServer")
+      UNIXServer.should_receive(:new).with(@path).and_return(handle)
+      @socket.listen
+      sock = mock("sock")
+      handle.should_receive(:accept).and_return(sock)
+      trans = mock("UNIXSocket")
+      UNIXSocket.should_receive(:new).and_return(trans)
+      trans.should_receive(:handle=).with(sock)
+      @socket.accept.should == trans
+    end
+
+    it "should close the handle when closed" do
+      handle = mock("UNIXServer", :closed? => false)
+      UNIXServer.should_receive(:new).with(@path).and_return(handle)
+      @socket.listen
+      handle.should_receive(:close)
+      @socket.close
+    end
+
+    it "should return nil when accepting if there is no handle" do
+      @socket.accept.should be_nil
+    end
+  end
+end