Rakefile in haml-5.1.2 vs Rakefile in haml-5.2.0

@@ -12,27 +12,20 @@
   t.warning = true
   t.verbose = true
 end
 Rake::TestTask.new do |t|
   t.libs << 'test'
-  t.test_files = Dir['test/*_test.rb'] + Dir['test/haml-spec/*_test.rb'] - isolated_test.file_list
+  t.test_files = Dir['test/*_test.rb'] + Dir['test/haml-spec/*_test.rb'] + Dir['test/cases/*_test.rb'] - isolated_test.file_list
   t.warning = true
   t.verbose = true
 end
 
 CLEAN.replace %w(pkg doc coverage .yardoc test/haml vendor)
 
 desc "Benchmark Haml against ERB. TIMES=n sets the number of runs, default is 1000."
 task :benchmark do
   sh "ruby benchmark.rb #{ENV['TIMES']}"
 end
-
-task :set_coverage_env do
-  ENV["COVERAGE"] = "true"
-end
-
-desc "Run Simplecov"
-task :coverage => [:set_coverage_env, :test]
 
 task :submodules do
   if File.exist?(File.dirname(__FILE__) + "/.git")
     sh %{git submodule sync}
     sh %{git submodule update --init --recursive}