dv-acts_as_tree-patch-1-rails3x-fix.patch

diff --git a/lib/acts_as_tree.rb b/lib/acts_as_tree.rb
index 3279d87..1395481 100644
--- a/lib/acts_as_tree.rb
+++ b/lib/acts_as_tree.rb
@@ -240,7 +240,7 @@ module ActsAsTree
     #   subchild1.leaf? # => true
     #   child1.leaf?    # => false
     def leaf?
-      children.empty?
+      children.size == 0
     end
 
     private
diff --git a/test/acts_as_tree_test.rb b/test/acts_as_tree_test.rb
index 539a82b..95b85cd 100644
--- a/test/acts_as_tree_test.rb
+++ b/test/acts_as_tree_test.rb
@@ -21,13 +21,13 @@ ActiveRecord::Base.establish_connection adapter: "sqlite3", database: ":memory:"
 # AR keeps printing annoying schema statements
 $stdout = StringIO.new
 
-def setup_db
+def setup_db(counter_cache = false)
   ActiveRecord::Base.logger
   ActiveRecord::Schema.define(version: 1) do
     create_table :mixins do |t|
       t.column :type, :string
       t.column :parent_id, :integer
-      t.column :children_count, :integer, default: 0
+      t.column :children_count, :integer, default: 0 if counter_cache
     end
   end
 end
@@ -395,7 +395,7 @@ end
 class TreeTestWithCounterCache < MiniTest::Unit::TestCase
   def setup
     teardown_db
-    setup_db
+    setup_db(true)
     @root          = TreeMixinWithCounterCache.create!
     @child1        = TreeMixinWithCounterCache.create! parent_id: @root.id
     @child1_child1 = TreeMixinWithCounterCache.create! parent_id: @child1.id