3 files changed, 40 insertions, 5 deletions
diff --git a/actionpack/test/dispatch/callbacks_test.rb b/actionpack/test/dispatch/callbacks_test.rb
index 5becb621de..eed2eca2ab 100644
--- a/actionpack/test/dispatch/callbacks_test.rb
+++ b/actionpack/test/dispatch/callbacks_test.rb
@@ -29,14 +29,16 @@ class DispatcherTest < ActiveSupport::TestCase
     assert_equal 4, Foo.b
   end
 
-  def test_to_prepare_deprecation
-    prepared = false
-    assert_deprecated do
-      ActionDispatch::Callbacks.to_prepare { prepared = true }
-    end
+  def test_to_prepare_and_cleanup_delegation
+    prepared = cleaned = false
+    ActionDispatch::Callbacks.to_prepare { prepared = true }
+    ActionDispatch::Callbacks.to_prepare { cleaned = true }
 
     ActionDispatch::Reloader.prepare!
     assert prepared
+
+    ActionDispatch::Reloader.cleanup!
+    assert cleaned
   end
 
   private
diff --git a/actionpack/test/dispatch/reloader_test.rb b/actionpack/test/dispatch/reloader_test.rb
index 995b19030c..eaabc1feb3 100644
--- a/actionpack/test/dispatch/reloader_test.rb
+++ b/actionpack/test/dispatch/reloader_test.rb
@@ -116,6 +116,20 @@ class ReloaderTest < Test::Unit::TestCase
     assert cleaned
   end
 
+  def test_cleanup_callbacks_are_called_on_exceptions
+    cleaned = false
+    Reloader.to_cleanup { cleaned  = true }
+
+    begin
+      call_and_return_body do
+        raise "error"
+      end
+    rescue
+    end
+
+    assert cleaned
+  end
+
   private
     def call_and_return_body(&block)
       @reloader ||= Reloader.new(block || proc {[200, {}, 'response']})
diff --git a/actionpack/test/template/asset_tag_helper_test.rb b/actionpack/test/template/asset_tag_helper_test.rb
index 39ecafd072..4b4e13e1a7 100644
--- a/actionpack/test/template/asset_tag_helper_test.rb
+++ b/actionpack/test/template/asset_tag_helper_test.rb
@@ -54,6 +54,9 @@ class AssetTagHelperTest < ActionView::TestCase
   def teardown
     config.perform_caching = false
     ENV.delete('RAILS_ASSET_ID')
+
+    JavascriptIncludeTag.expansions.clear
+    StylesheetIncludeTag.expansions.clear
   end
 
   AutoDiscoveryToTag = {
@@ -268,6 +271,14 @@ class AssetTagHelperTest < ActionView::TestCase
     assert_dom_equal  %(<script src="/javascripts/controls.js" type="text/javascript"></script>\n<script src="/javascripts/prototype.js" type="text/javascript"></script>\n<script src="/javascripts/effects.js" type="text/javascript"></script>\n<script src="/javascripts/dragdrop.js" type="text/javascript"></script>\n<script src="/javascripts/controls.js" type="text/javascript"></script>\n<script src="/javascripts/rails.js" type="text/javascript"></script>\n<script src="/javascripts/bank.js" type="text/javascript"></script>\n<script src="/javascripts/robber.js" type="text/javascript"></script>\n<script src="/javascripts/effects.js" type="text/javascript"></script>\n<script src="/javascripts/application.js" type="text/javascript"></script>), javascript_include_tag('controls',:defaults, :robbery, 'effects')
   end
 
+  def test_registering_javascript_expansions_merges_with_existing_expansions
+    ENV["RAILS_ASSET_ID"] = ""
+    ActionView::Helpers::AssetTagHelper::register_javascript_expansion :can_merge => ['bank']
+    ActionView::Helpers::AssetTagHelper::register_javascript_expansion :can_merge => ['robber']
+    ActionView::Helpers::AssetTagHelper::register_javascript_expansion :can_merge => ['bank']
+    assert_dom_equal  %(<script src="/javascripts/bank.js" type="text/javascript"></script>\n<script src="/javascripts/robber.js" type="text/javascript"></script>), javascript_include_tag(:can_merge)
+  end
+
   def test_custom_javascript_expansions_with_undefined_symbol
     ActionView::Helpers::AssetTagHelper::register_javascript_expansion :monkey => nil
     assert_raise(ArgumentError) { javascript_include_tag('first', :monkey, 'last') }
@@ -327,6 +338,14 @@ class AssetTagHelperTest < ActionView::TestCase
     assert_raise(ArgumentError) { stylesheet_link_tag('first', :monkey, 'last') }
   end
 
+  def test_registering_stylesheet_expansions_merges_with_existing_expansions
+    ENV["RAILS_ASSET_ID"] = ""
+    ActionView::Helpers::AssetTagHelper::register_stylesheet_expansion :can_merge => ['bank']
+    ActionView::Helpers::AssetTagHelper::register_stylesheet_expansion :can_merge => ['robber']
+    ActionView::Helpers::AssetTagHelper::register_stylesheet_expansion :can_merge => ['bank']
+    assert_dom_equal  %(<link href="/stylesheets/bank.css" media="screen" rel="stylesheet" type="text/css" />\n<link href="/stylesheets/robber.css" media="screen" rel="stylesheet" type="text/css" />), stylesheet_link_tag(:can_merge)
+  end
+
   def test_image_path
     ImagePathToTag.each { |method, tag| assert_dom_equal(tag, eval(method)) }
   end