From 4076666c19b431d619a5fe11c3a892426b05a3ff Mon Sep 17 00:00:00 2001
From: Adam Luikart <adam.luikart@thirteen23.com>
Date: Thu, 6 Sep 2012 14:30:47 -0500
Subject: [PATCH] Add test for asset_hashing rack-filtered items.

---
 middleman-more/features/asset_hash.feature       | 16 +++++++++++++++-
 .../fixtures/asset-hash-app/lib/middleware.rb    | 16 ++++++++++++++++
 2 files changed, 31 insertions(+), 1 deletion(-)
 create mode 100644 middleman-more/fixtures/asset-hash-app/lib/middleware.rb

diff --git a/middleman-more/features/asset_hash.feature b/middleman-more/features/asset_hash.feature
index 34d9355f..b5945ba5 100644
--- a/middleman-more/features/asset_hash.feature
+++ b/middleman-more/features/asset_hash.feature
@@ -84,4 +84,18 @@ Feature: Assets get a file hash appended to their and references to them are upd
         font-size: 18px !important
       """
     When I go to "/partials/"
-    Then I should see 'href="../stylesheets/uses_partials-e8c3d4eb.css'
\ No newline at end of file
+    Then I should see 'href="../stylesheets/uses_partials-e8c3d4eb.css'
+
+  Scenario: The asset hash should change when a Rack-based filter changes
+    Given a fixture app "asset-hash-app"
+    And a file named "config.rb" with:
+      """
+      activate :asset_hash
+      activate :relative_assets
+      activate :directory_indexes
+      require 'lib/middleware.rb'
+      use Middleware
+      """
+    Given the Server is running at "asset-hash-app"
+    When I go to "/"
+    Then I should see 'href="stylesheets/site-5770af52.css'
diff --git a/middleman-more/fixtures/asset-hash-app/lib/middleware.rb b/middleman-more/fixtures/asset-hash-app/lib/middleware.rb
new file mode 100644
index 00000000..8ee825fd
--- /dev/null
+++ b/middleman-more/fixtures/asset-hash-app/lib/middleware.rb
@@ -0,0 +1,16 @@
+class Middleware
+  def initialize(app)
+    @app = app
+  end
+
+  def call(env)
+    status, headers, response = @app.call(env)
+    body = ''
+    response.each {|part| body += part }
+    if (env["PATH_INFO"] =~ /css$/)
+      body += "\n/* Added by Rack filter */"
+      status, headers, response = Rack::Response.new(body, status, headers).finish
+    end
+    [status, headers, response]
+  end
+end