Removed superfluous 'tracks' directory at the root of the repository.

Testing commits to github.

test/unit/preference_test.rb

@@ -0,0 +1,35 @@
+require File.dirname(__FILE__) + '/../test_helper'
+
+class PreferenceTest < Test::Rails::TestCase
+  fixtures :users, :preferences
+
+  def setup
+    assert_equal "test", ENV['RAILS_ENV']
+    assert_equal "change-me", Tracks::Config.salt
+    @admin_user = User.find(1)
+    @other_user = User.find(2)
+  end
+
+  def test_time_zone
+    assert_equal 'London', @admin_user.preference.time_zone
+    assert_equal @admin_user.preference.tz, TimeZone['London']
+  end
+  
+  def test_show_project_on_todo_done
+    assert @other_user.preference.show_project_on_todo_done
+    assert !@admin_user.preference.show_project_on_todo_done
+  end
+  
+  def test_parse_date
+    assert_equal Date.new(2007, 5, 20).to_s, @admin_user.preference.parse_date('20/5/2007').to_s
+  end
+  
+  def test_parse_date_returns_nil_if_string_is_empty
+    assert_nil @admin_user.preference.parse_date('')
+  end
+
+  def test_parse_date_returns_nil_if_string_is_nil
+    assert_nil @admin_user.preference.parse_date(nil)
+  end
+
+end