Set up declarative test

test/filters_test.rb

@@ -2,33 +2,19 @@
 require 'test_helper'
 
 class FiltersTest < MiniTest::Unit::TestCase
-
   def render(text, options = {}, &block)
     scope  = options.delete(:scope)  || Object.new
     locals = options.delete(:locals) || {}
     Haml::Engine.new(text, options).to_html(scope, locals, &block)
   end
 
-  TESTS = {
-    :sass         => ["sass/plugin", /width: 100;/, ":sass\n  p\n    width: 100"],
-    :scss         => ["sass/plugin", /width: 100;/, ":scss\n  $width: 100;\n  p {\n    width: $width;\n  }"],
-    :less         => ["less", /width: 100;/, ":less\n  @width: 100;\n  p {\n    width: @width;\n  }"],
-    :coffeescript => ["coffee_script", /var foo;/, ":coffeescript\n foo = 'bar'"],
-    :maruku       => ["maruku", /h1/, ":maruku\n  # foo"],
-  }
-
-  TESTS.each do |key, value|
-    library, pattern, haml = value
-
-    define_method("test_#{key}_filter") do
-      begin
-        Haml::Util.silence_warnings do
-          require library
-        end
-        assert_match(pattern, render(haml))
-      rescue LoadError
-        warn "Could not load #{key} filter's dependencies"
-      end
+  test "modules including Haml::Filters::Base are registered as filters" do
+    begin
+      refute Haml::Filters.defined.has_key? "bar"
+      Module.new {def self.name; "Foo::Bar"; end; include Haml::Filters::Base}
+      assert Haml::Filters.defined.has_key? "bar"
+    ensure
+      Haml::Filters.defined.delete "bar"
     end
   end
 end

test/test_helper.rb

@@ -25,10 +25,19 @@ require 'fileutils'
 require 'haml'
 require 'haml/template'
 
-Haml::Template.options[:ugly] = false
+Haml::Template.options[:ugly]   = false
 Haml::Template.options[:format] = :xhtml
 
+module Declarative
+  def test(name, &block)
+    define_method("test #{name}", &block)
+  end
+end
+
 class MiniTest::Unit::TestCase
+
+  extend Declarative
+
   def assert_warning(message)
     the_real_stderr, $stderr = $stderr, StringIO.new
     yield