From 6adc431a19f59a68cd487242c537ba96c82e3dc7 Mon Sep 17 00:00:00 2001
From: Gaurav Chande <gmail@gauravchande.com>
Date: Fri, 22 Apr 2016 17:16:17 -0400
Subject: [PATCH 1/2] Make tag registry enumerable

---
 lib/liquid/template.rb          | 6 ++++++
 test/unit/template_unit_test.rb | 6 ++++++
 2 files changed, 12 insertions(+)

diff --git a/lib/liquid/template.rb b/lib/liquid/template.rb
index 9b82241..40985ed 100644
--- a/lib/liquid/template.rb
+++ b/lib/liquid/template.rb
@@ -19,6 +19,8 @@ module Liquid
     @@file_system = BlankFileSystem.new
 
     class TagRegistry
+      include Enumerable
+
       def initialize
         @tags = {}
         @cache = {}
@@ -41,6 +43,10 @@ module Liquid
         @cache.delete(tag_name)
       end
 
+      def each(&block)
+        @tags.each(&block)
+      end
+
       private
 
       def lookup_class(name)
diff --git a/test/unit/template_unit_test.rb b/test/unit/template_unit_test.rb
index 42cc613..26c084a 100644
--- a/test/unit/template_unit_test.rb
+++ b/test/unit/template_unit_test.rb
@@ -67,4 +67,10 @@ class TemplateUnitTest < Minitest::Test
     Template.tags.delete('fake')
     assert_nil Template.tags['fake']
   end
+
+  def test_tags_can_be_looped_over
+    Template.register_tag('fake', FakeTag)
+    result = Template.tags.map { |name, klass| [name, klass] }
+    assert result.include?(["fake", "TemplateUnitTest::FakeTag"])
+  end
 end

From 5bb211d933911e84f8c75da5c292fcac48d9449c Mon Sep 17 00:00:00 2001
From: Gaurav Chande <gmail@gauravchande.com>
Date: Mon, 25 Apr 2016 11:50:46 -0400
Subject: [PATCH 2/2] Ensure no tag leakage since registry is global

---
 test/unit/block_unit_test.rb    | 2 ++
 test/unit/template_unit_test.rb | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/test/unit/block_unit_test.rb b/test/unit/block_unit_test.rb
index 106c4d4..6a27a7d 100644
--- a/test/unit/block_unit_test.rb
+++ b/test/unit/block_unit_test.rb
@@ -46,6 +46,8 @@ class BlockUnitTest < Minitest::Test
   def test_with_custom_tag
     Liquid::Template.register_tag("testtag", Block)
     assert Liquid::Template.parse("{% testtag %} {% endtesttag %}")
+  ensure
+    Liquid::Template.tags.delete('testtag')
   end
 
   private
diff --git a/test/unit/template_unit_test.rb b/test/unit/template_unit_test.rb
index 26c084a..6328be5 100644
--- a/test/unit/template_unit_test.rb
+++ b/test/unit/template_unit_test.rb
@@ -72,5 +72,7 @@ class TemplateUnitTest < Minitest::Test
     Template.register_tag('fake', FakeTag)
     result = Template.tags.map { |name, klass| [name, klass] }
     assert result.include?(["fake", "TemplateUnitTest::FakeTag"])
+  ensure
+    Template.tags.delete('fake')
   end
 end