Convert haml-spec into rspec

Rakefile

@@ -20,7 +20,7 @@ end
 namespace :haml do
   desc 'Run Haml Spec'
   task :spec do
-    system('cd haml-spec && rake spec')
+    system('bundle exec rspec --pattern spec/haml-spec/**{,/\*/\*\*\}/\*_spec.rb')
   end
 end
 

haml-spec/ruby_haml_test.rb

@@ -1,4 +1,4 @@
-$:.unshift File.expand_path('../../../lib', __FILE__)
+$:.unshift File.expand_path('../../lib', __FILE__)
 
 require "rubygems"
 require "minitest/autorun"

spec/haml-spec/Rakefile

@@ -0,0 +1,41 @@
+$:.unshift File.expand_path('../../../lib', __FILE__)
+
+require 'json'
+
+desc 'Convert tests.json into rspec tests'
+task :convert do
+  tests = []
+
+  contexts = JSON.parse(File.read(File.expand_path('../../../haml-spec/tests.json', __FILE__)))
+  contexts.each do |context|
+    context[1].each_with_index do |(name, test), index|
+      tests << {
+        name: "#{name} (#{context[0]})",
+        html: test['html'],
+        haml: test['haml'],
+        locals: test['locals'],
+        config: test['config'],
+      }
+    end
+  end
+
+  spec = "describe 'haml-spec' do\n"
+  spec += tests.map { |test|
+    options = Hash[(test[:config] || {}).map {|x, y| [x.to_sym, y]}]
+
+    spec =  "  specify %q{#{test[:name]}} do\n"
+    spec += "    html             = %q{#{test[:html]}}\n"
+    spec += "    haml             = %q{#{test[:haml]}}\n"
+    spec += "    locals           = Hash[#{test[:locals] || {}}.map {|x, y| [x.to_sym, y]}]\n"
+    spec += "    options          = #{options}\n"
+    spec += "    options[:format] = '#{options[:format]}'\n" if options.key?(:format)
+    spec += "    engine           = Hamlit::Template.new(options) { haml }\n"
+    spec += "    result           = engine.render(Object.new, locals)\n"
+    spec += "    expect(result.strip).to eq(html)\n"
+    spec += "  end\n"
+  }.join("\n")
+  spec += "end\n"
+  File.write('ruby_haml_spec.rb', spec)
+end
+
+task default: :convert