variables in include tag with filters

test/source/_includes/include.html

@@ -0,0 +1 @@
+included

test/source/_posts/2013-12-17-include-variable-filters.markdown

@@ -0,0 +1,22 @@
+---
+title: Post
+layout: post
+include1: include.html
+include2: include
+include3: INCLUDE
+include4: params
+---
+
+Liquid tests
+- 1 {% include {{ page.include1 }} %}
+- 2 {% include {{ page.include2 | append: '.html' }} %}
+- 3 {% include {{ page.include3 | downcase | append: '.html' }} %}
+- 4 {% include {{ page.include2 | append: '.html' }} %} 
+
+Whitespace tests
+- 5 {% include {{page.include1}} %}
+- 6 {% include {{   page.include1}} %}
+- 7 {% include {{  page.include3   | downcase |   append:  '.html'}} %}
+
+Parameters test
+- 8 {% include {{ page.include4 | append: '.html' }} var1='foo' var2='bar' %}

test/test_generated_site.rb

@@ -14,7 +14,7 @@ class TestGeneratedSite < Test::Unit::TestCase
     end
 
     should "ensure post count is as expected" do
-      assert_equal 36, @site.posts.size
+      assert_equal 37, @site.posts.size
     end
 
     should "insert site.posts into the index" do

test/test_tags.rb

@@ -471,5 +471,36 @@ CONTENT
       end
     end
 
+    context "include tag with variable and liquid filters" do
+      setup do
+        stub(Jekyll).configuration do
+          Jekyll::Configuration::DEFAULTS.deep_merge({'pygments' => true}).deep_merge({'source' => source_dir, 'destination' => dest_dir})
+        end
+
+        site = Site.new(Jekyll.configuration)
+        post = Post.new(site, source_dir, '', "2013-12-17-include-variable-filters.markdown")
+        layouts = { "default" => Layout.new(site, source_dir('_layouts'), "simple.html")}
+        post.render(layouts, {"site" => {"posts" => []}})
+        @content = post.content
+      end
+
+      should "include file as variable with liquid filters" do
+        assert_match %r{1 included}, @content
+        assert_match %r{2 included}, @content
+        assert_match %r{3 included}, @content
+        assert_match %r{4 included}, @content
+      end
+
+      should "include file as variable and liquid filters with arbitrary whitespace" do
+        assert_match %r{5 included}, @content
+        assert_match %r{6 included}, @content
+        assert_match %r{7 included}, @content
+      end
+
+      should "include file as variable and filters with additional parameters" do
+        assert_match '<li>var1 = foo</li>', @content
+        assert_match '<li>var2 = bar</li>', @content
+      end
+    end
   end
 end