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@@ -169,5 +169,16 @@ class HelperTest < Test::Unit::TestCase
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   def test_non_haml
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     assert_equal("false\n", render("= non_haml { is_haml? }"))
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   end
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+  
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+  class ActsLikeTag
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+    include ActionView::Helpers::TagHelper
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+    def to_s
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+      content_tag :p, 'some tag content'
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+    end
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+  end
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+
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+  def test_random_class_includes_tag_helper
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+    assert_equal "<p>some tag content</p>", ActsLikeTag.new.to_s
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+  end
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 end
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