Add tests for include tag with partial variables

features/include_tag.feature

@@ -66,3 +66,14 @@ Feature: Include tags
     When I run jekyll build
     Then the _site directory should exist
     And I should see "one included" in "_site/index.html"
+
+  Scenario: Include a file with partial variables
+    Given I have an _includes directory
+    And I have an "_includes/one.html" file that contains "one included"
+    And I have a configuration file with:
+    | key          | value |
+    | include_file | one   |
+    And I have an "index.html" page that contains "{% include {{ site.include_file }}.html %}"
+    When I run jekyll build
+    Then the _site directory should exist
+    And I should see "one included" in "_site/index.html"

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

@@ -5,6 +5,7 @@ include1: include.html
 include2: include
 include3: INCLUDE
 include4: params
+include5: clude
 ---
 
 Liquid tests
@@ -19,3 +20,6 @@ Whitespace tests
 
 Parameters test
 - 7 {% include {{ page.include4 | append: '.html' }} var1='foo' var2='bar' %}
+
+Partial variable test
+- 8 {% include in{{ page.include5 }}.html %}

test/test_tags.rb

@@ -504,6 +504,10 @@ CONTENT
         assert_match '<li>var1 = foo</li>', @content
         assert_match '<li>var2 = bar</li>', @content
       end
+
+      should "include file as partial variable" do
+        assert_match %r{8 included}, @content
+      end
     end
   end
 end