Pass the template format to the digestor

This commit passes the template format to the digestor in order to come
up with a key.  Before this commit, the digestor would depend on the
side effect of the template renderer setting the rendered_format on the
lookup context.  I would like to remove that mutation, so I've changed
this to pass the template format in to the digestor.

I've introduced a new instance variable that will be alive during a
template render.  When the template is being rendered, it pushes the
current template on to a stack, setting `@current_template` to the
template currently being rendered.  When the cache helper asks the
digestor for a key, it uses the format of the template currently on the
stack.

1 files changed, 2 insertions, 1 deletions

diff --git a/actionview/test/activerecord/relation_cache_test.rb b/actionview/test/activerecord/relation_cache_test.rb
index a6befc3ee5..6fe83dcb9a 100644
--- a/actionview/test/activerecord/relation_cache_test.rb
+++ b/actionview/test/activerecord/relation_cache_test.rb
@@ -11,13 +11,14 @@ class RelationCacheTest < ActionView::TestCase
     lookup_context = ActionView::LookupContext.new(view_paths, {}, ["test"])
     @view_renderer = ActionView::Renderer.new(lookup_context)
     @virtual_path  = "path"
+    @current_template = lookup_context.find "test/hello_world"
 
     controller.cache_store = ActiveSupport::Cache::MemoryStore.new
   end
 
   def test_cache_relation_other
     cache(Project.all) { concat("Hello World") }
-    assert_equal "Hello World", controller.cache_store.read("views/path/projects-#{Project.count}")
+    assert_equal "Hello World", controller.cache_store.read("views/test/hello_world:fa9482a68ce25bf7589b8eddad72f736/projects-#{Project.count}")
   end
 
   def view_cache_dependencies; []; end