diff --git a/test/form_builder/association_test.rb b/test/form_builder/association_test.rb
index 8df91e74..e62f970e 100644
--- a/test/form_builder/association_test.rb
+++ b/test/form_builder/association_test.rb
@@ -25,7 +25,7 @@ class AssociationTest < ActionView::TestCase
   test 'builder association forwards collection to simple_fields_for' do
     calls = 0
     simple_form_for @user do |f|
-      f.association :company, collection: Company.all.to_a do |c|
+      f.association :company, collection: Company.all do |c|
         calls += 1
       end
     end
diff --git a/test/support/models.rb b/test/support/models.rb
index 70c57ce9..fa8eb481 100644
--- a/test/support/models.rb
+++ b/test/support/models.rb
@@ -8,6 +8,8 @@ Column = Struct.new(:name, :type, :limit) do
 end
 
 Relation = Struct.new(:records) do
+  delegate :each, to: :records
+
   def where(conditions = nil)
     self.class.new conditions ? records.first : records
   end
@@ -16,7 +18,8 @@ Relation = Struct.new(:records) do
     self.class.new conditions ? records.last : records
   end
 
-  alias_method :to_a, :records
+  alias_method :to_a,   :records
+  alias_method :to_ary, :records
 end
 
 Picture = Struct.new(:id, :name) do