Added Simplecov

Gemfile

@@ -3,4 +3,8 @@ gemspec
 
 platform :mri do
   gem "ruby-prof"
+end
+
+platform :mri_19 do
+  gem "simplecov"
 end

Rakefile

@@ -24,6 +24,13 @@ Rake::TestTask.new do |t|
   t.verbose = true
 end
 
+task :set_coverage_env do
+  ENV["COVERAGE"] = "true"
+end
+
+desc "Run Simplecov (only works on 1.9)"
+task :coverage => [:set_coverage_env, :test]
+
 gemspec = File.expand_path("../haml.gemspec", __FILE__)
 if File.exist? gemspec
   Gem::PackageTask.new(eval(File.read(gemspec))) { |pkg| }

test/test_helper.rb

@@ -1,3 +1,8 @@
+if ENV["COVERAGE"]
+  require "simplecov"
+  SimpleCov.start
+end
+
 require 'rubygems'
 gem "minitest"
 require 'bundler/setup'