applies new string literal convention in activemodel/test

The current code base is not uniform. After some discussion,
we have chosen to go with double quotes by default.

1 files changed, 4 insertions, 4 deletions

diff --git a/activemodel/test/cases/validations/format_validation_test.rb b/activemodel/test/cases/validations/format_validation_test.rb
index ea4c2ee7df..5c4a1863cd 100644
--- a/activemodel/test/cases/validations/format_validation_test.rb
+++ b/activemodel/test/cases/validations/format_validation_test.rb
@@ -1,7 +1,7 @@
-require 'cases/helper'
+require "cases/helper"
 
-require 'models/topic'
-require 'models/person'
+require "models/topic"
+require "models/person"
 
 class PresenceValidationTest < ActiveModel::TestCase
 
@@ -63,7 +63,7 @@ class PresenceValidationTest < ActiveModel::TestCase
 
   def test_validate_format_with_formatted_message
     Topic.validates_format_of(:title, with: /\AValid Title\z/, message: "can't be %{value}")
-    t = Topic.new(title: 'Invalid title')
+    t = Topic.new(title: "Invalid title")
     assert t.invalid?
     assert_equal ["can't be Invalid title"], t.errors[:title]
   end