Allow setting the host and port on a Statsd::Batch object

lib/statsd.rb

@@ -43,7 +43,11 @@ class Batch < Statsd
 
     extend Forwardable
     def_delegators :@statsd,
-      :namespace, :namespace=, :host, :port, :prefix, :postfix
+      :namespace, :namespace=,
+      :host, :host=,
+      :port, :port=,
+      :prefix,
+      :postfix
 
     attr_accessor :batch_size
 

spec/statsd_spec.rb

@@ -321,6 +321,24 @@ class Statsd::SomeClass; end
       @socket.recv.must_equal %w[foobar:1|c]
     end
 
+    it "should support setting namespace for the underlying instance" do
+      batch = Statsd::Batch.new(@statsd)
+      batch.namespace = 'ns'
+      @statsd.namespace.must_equal 'ns'
+    end
+
+    it "should support setting host for the underlying instance" do
+      batch = Statsd::Batch.new(@statsd)
+      batch.host = '1.2.3.4'
+      @statsd.host.must_equal '1.2.3.4'
+    end
+
+    it "should support setting port for the underlying instance" do
+      batch = Statsd::Batch.new(@statsd)
+      batch.port = 42
+      @statsd.port.must_equal 42
+    end
+
   end
 
   describe "thread safety" do