4 files changed, 38 insertions, 4 deletions
diff --git a/actionpack/lib/action_view/digestor.rb b/actionpack/lib/action_view/digestor.rb
index cfa864cdd4..899100d06c 100644
--- a/actionpack/lib/action_view/digestor.rb
+++ b/actionpack/lib/action_view/digestor.rb
@@ -15,10 +15,10 @@ module ActionView
     #   render(topics)         => render("topics/topic")
     #   render(message.topics) => render("topics/topic")
     RENDER_DEPENDENCY = /
-      render\s?                # render, followed by an optional space
-      \(?                      # start a optional parenthesis for the render call
-      (partial:)?\s?           # naming the partial, used with collection -- 1st capture
-      ([@a-z"'][@a-z_\/\."']+) # the template name itself -- 2nd capture
+      render\s*                     # render, followed by optional whitespace
+      \(?                           # start an optional parenthesis for the render call
+      (partial:|:partial\s+=>)?\s*  # naming the partial, used with collection -- 1st capture
+      ([@a-z"'][@a-z_\/\."']+)      # the template name itself -- 2nd capture
     /x
 
     cattr_accessor(:cache)  { Hash.new }
diff --git a/actionpack/test/fixtures/digestor/messages/_form.html.erb b/actionpack/test/fixtures/digestor/messages/_form.html.erb
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/actionpack/test/fixtures/digestor/messages/_form.html.erb
diff --git a/actionpack/test/fixtures/digestor/messages/edit.html.erb b/actionpack/test/fixtures/digestor/messages/edit.html.erb
new file mode 100644
index 0000000000..a9e0a88e32
--- /dev/null
+++ b/actionpack/test/fixtures/digestor/messages/edit.html.erb
@@ -0,0 +1,5 @@
+<%= render              "header" %>
+<%= render    partial:  "form" %>
+<%= render              @message %>
+<%= render ( @message.events ) %>
+<%= render    :partial =>    "comments/comment", :collection => @message.comments %>
diff --git a/actionpack/test/template/digestor_test.rb b/actionpack/test/template/digestor_test.rb
index 067ab500f5..a53e335bb3 100644
--- a/actionpack/test/template/digestor_test.rb
+++ b/actionpack/test/template/digestor_test.rb
@@ -92,6 +92,35 @@ class TemplateDigestorTest < ActionView::TestCase
     end
   end
 
+  def test_extra_whitespace_in_render_partial
+    assert_digest_difference("messages/edit") do
+      change_template("messages/_form")
+    end
+  end
+
+  def test_extra_whitespace_in_render_named_partial
+    assert_digest_difference("messages/edit") do
+      change_template("messages/_header")
+    end
+  end
+
+  def test_extra_whitespace_in_render_record
+    assert_digest_difference("messages/edit") do
+      change_template("messages/_message")
+    end
+  end
+
+  def test_extra_whitespace_in_render_with_parenthesis
+    assert_digest_difference("messages/edit") do
+      change_template("events/_event")
+    end
+  end
+
+  def test_old_style_hash_in_render_invocation
+    assert_digest_difference("messages/edit") do
+      change_template("comments/_comment")
+    end
+  end
 
   private
     def assert_logged(message)