Update for modern ruby

- update test to use minitest
- update require

lib/hk_geo.rb

@@ -1,5 +1,3 @@
-require "hk_geo/version"
-
-module HkGeo
-  # Your code goes here...
-end
+require_relative "./hk_geo/version"
+require_relative "./hk_geo/converter"
+require_relative "./hk_geo/route_finder"

lib/hk_geo/converter.rb

@@ -1,4 +1,3 @@
-require 'rubygems'
 require 'mechanize'
 
 module HkGeo

lib/hk_geo/route_finder.rb

@@ -1,4 +1,3 @@
-require 'rubygems'
 require 'rest-client'
 require 'json'
 require "googlemaps_polyline/core"

test/test_hk_geo.rb

@@ -1,25 +1,17 @@
 require "rubygems"
-require "test/unit"
+require "minitest/autorun"
+
+$LOAD_PATH << "./lib"
 require "hk_geo"
 
-class TestHkGeo < Test::Unit::TestCase
+class TestHkGeo < MiniTest::Unit::TestCase
   def test_fetch    
     result = HkGeo::Converter.convert("835352.749", "815640.774")
-    assert_not_nil(result)
-    assert_equal("22.457521648", result[0])
-    assert_equal("113.976469709", result[1])
+    assert_equal("22.457521619", result[0])
+    assert_equal("113.976469702", result[1])
 
     result = HkGeo::Converter.convert("835352.749", "815640.774", HkGeo::SYSTEM_HK80, HkGeo::SYSTEM_ITRF96, HkGeo::UNIT_DM)
-    assert_not_nil(result)
-    assert_equal("22.2745130", result[0])
-    assert_equal("113.5858818", result[1])
-  end
-
-  def test_route
-    result1 = HkGeo::Converter.convert("834038.674", "816345.067")
-    result2 = HkGeo::Converter.convert("833862.7", "816441.553")
-
-    data = HkGeo::RouteFinder.route(result1.join(","), result2.join(","))
-    puts data.inspect
+    assert_equal("22.27 451297", result[0])
+    assert_equal("113.58 588182", result[1])
   end
 end