Add Port class functionality and tests from Artoo

src/port.coffee

@@ -10,13 +10,36 @@
 
 module.exports = class Port
   constructor: (data) ->
-    [@isTcp, @isSerial, @isPortless] = [false, false, false]
+    @isTcp = @isSerial = @isPortless = false
     @parse(data)
 
   parse: (data) ->
-    @host = "localhost"
-    @port = "4567"
-    # TODO: actual parsing of the incoming data string
+    if data is undefined
+      @port = undefined
+      @isPortless = true
+
+    # is TCP host/port?
+    else if match = /(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}):(\d{1,5})/.exec(data)
+      @port = match[2]
+      @host = match[1]
+      @isTcp = true
+
+    # is it a numeric port for localhost tcp?
+    else if /^[0-9]{1,5}$/.exec(data)
+      @port = data
+      @host = "localhost"
+      @isTcp = true
+
+    # must be a serial port
+    else
+      @port = data
+      @host = undefined
+      @isSerial = true
 
   toString: ->
-    "#{@host}:#{@port}"
+    if @isPortless
+      "none"
+    else if @isSerial
+      @port
+    else
+      "#{@host}:#{@port}"

test/src/specs/port.spec.coffee

@@ -2,11 +2,76 @@
 
 Port = source("port")
 
-describe "tcp port", ->
-  p = new Port("locahost:4567")
+describe "Port", ->
+  describe "remote TCP port", ->
+    port = new Port("192.168.0.1:8080")
 
-  it "should have a host", ->
-    p.host.should.be.equal 'localhost'
+    it "#port", ->
+      port.port.should.be.equal "8080"
 
-  it "should have a port", ->
-    p.port.should.be.equal '4567'
+    it "#isTcp", ->
+      port.isTcp.should.be.true
+
+    it "#isSerial", ->
+      port.isSerial.should.be.false
+
+    it "#isPortless", ->
+      port.isPortless.should.be.false
+
+    it "#toString", ->
+      port.toString().should.be.equal "192.168.0.1:8080"
+
+  describe "local TCP port", ->
+    port = new Port("5678")
+
+    it "#port", ->
+      port.port.should.be.equal "5678"
+
+    it "#isTcp", ->
+      port.isTcp.should.be.true
+
+    it "#isSerial", ->
+      port.isSerial.should.be.false
+
+    it "#isPortless", ->
+      port.isPortless.should.be.false
+
+    it "#toString", ->
+      port.toString().should.be.equal "localhost:5678"
+
+  describe "serial port", ->
+    port = new Port("/dev/tty.usb12345")
+
+    it "#port", ->
+      port.port.should.be.equal "/dev/tty.usb12345"
+
+    it "#isTcp", ->
+      port.isTcp.should.be.false
+
+    it "#isSerial", ->
+      port.isSerial.should.be.true
+
+    it "#isPortless", ->
+      port.isPortless.should.be.false
+
+    it "#toString", ->
+      port.toString().should.be.equal "/dev/tty.usb12345"
+
+  describe "portless", ->
+    port = new Port
+
+    it "#port", ->
+      # cannot call .should on undefined(void 0)
+      assert port.port is undefined
+
+    it "#isTcp", ->
+      port.isTcp.should.be.false
+
+    it "#isSerial", ->
+      port.isSerial.should.be.false
+
+    it "#isPortless", ->
+      port.isPortless.should.be.true
+
+    it "#toString", ->
+      port.toString().should.be.equal "none"