make tests run on windows

lib/ap/core_ext/string.rb

@@ -12,7 +12,7 @@ class String
   #    0 => normal
 
   [ :gray, :red, :green, :yellow, :blue, :purple, :cyan, :white ].each_with_index do |color, i|
-    if STDOUT.tty? && ENV['TERM'] && ENV['TERM'] != 'dumb'
+    if STDOUT.tty? && ((ENV['TERM'] && ENV['TERM'] != 'dumb')  || ENV['ANSICON'])
       define_method color          do "\033[1;#{30+i}m#{self}\033[0m" end
       define_method :"#{color}ish" do "\033[0;#{30+i}m#{self}\033[0m" end
     else

spec/awesome_print_spec.rb

@@ -504,14 +504,15 @@ EOS
     it "inherited from File should be displayed as File" do
       class My < File; end
 
-      my = File.new('/dev/null')
+      my = File.new('nul')
       my.ai(:plain => true).should == "#{my.inspect}\n" << `ls -alF #{my.path}`.chop
     end
 
     it "inherited from Dir should be displayed as Dir" do
       class My < Dir; end
 
-      my = My.new('/tmp')
+      require 'tmpdir'
+      my = My.new(Dir.tmpdir)
       my.ai(:plain => true).should == "#{my.inspect}\n" << `ls -alF #{my.path}`.chop
     end
 

spec/logger_spec.rb

@@ -6,7 +6,7 @@ require 'ap/core_ext/logger'
 
 describe "AwesomePrint logging extensions" do
   before(:all) do
-    @logger = Logger.new('/dev/null')
+    @logger = Logger.new('nul')
   end
 
   describe "ap method" do