Add basic UDP connection

lib/linr.rb

@@ -1,4 +1,5 @@
 require "linr/version"
+require "linr/connection"
 
 # A simple UDP client for InfluxDB
 module Linr

lib/linr/connection.rb

@@ -0,0 +1 @@
+require "linr/connection/udp"

lib/linr/connection/udp.rb

@@ -0,0 +1,22 @@
+module Linr
+  module Connection
+    class UDP
+      # Use non-custom flags
+      SEND_FLAGS = 0
+
+      # Establishes a connection
+      # @param host [String]
+      # @param port [Fixnum]
+      def initialize(host, port)
+        @socket = UDPSocket.new
+        @socket.connect(host, port)
+      end
+
+      # Send arbitrary data ober the UDP connection
+      # @param data [String]
+      def send(data)
+        @socket.send(data, SEND_FLAGS)
+      end
+    end
+  end
+end

spec/connection/udp_spec.rb

@@ -0,0 +1,18 @@
+require "spec_helper"
+
+describe ::Linr::Connection::UDP do
+  subject      { ::Linr::Connection::UDP.new(host, port) }
+  let(:host)   { "127.0.0.1" }
+  let(:port)   { 44_000 }
+  let(:socket) { UDPSocket.new }
+
+  before do
+    socket.bind(host, port)
+  end
+
+  it "sends data as passed" do
+    payload = "measurement,foo=bar,bat=baz value=12,otherval=21 1439587925"
+    subject.send(payload)
+    socket.recvfrom(60).first.must_equal payload
+  end
+end