applies new string literal convention in activerecord/test

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

1 files changed, 7 insertions, 7 deletions

diff --git a/activerecord/test/cases/transaction_isolation_test.rb b/activerecord/test/cases/transaction_isolation_test.rb
index 2f7d208ed2..f177f0644a 100644
--- a/activerecord/test/cases/transaction_isolation_test.rb
+++ b/activerecord/test/cases/transaction_isolation_test.rb
@@ -1,4 +1,4 @@
-require 'cases/helper'
+require "cases/helper"
 
 unless ActiveRecord::Base.connection.supports_transaction_isolation?
   class TransactionIsolationUnsupportedTest < ActiveRecord::TestCase
@@ -20,11 +20,11 @@ if ActiveRecord::Base.connection.supports_transaction_isolation?
     self.use_transactional_tests = false
 
     class Tag < ActiveRecord::Base
-      self.table_name = 'tags'
+      self.table_name = "tags"
     end
 
     class Tag2 < ActiveRecord::Base
-      self.table_name = 'tags'
+      self.table_name = "tags"
     end
 
     setup do
@@ -63,18 +63,18 @@ if ActiveRecord::Base.connection.supports_transaction_isolation?
     # We are testing that a nonrepeatable read does not happen
     if ActiveRecord::Base.connection.transaction_isolation_levels.include?(:repeatable_read)
       test "repeatable read" do
-        tag = Tag.create(name: 'jon')
+        tag = Tag.create(name: "jon")
 
         Tag.transaction(isolation: :repeatable_read) do
           tag.reload
-          Tag2.find(tag.id).update(name: 'emily')
+          Tag2.find(tag.id).update(name: "emily")
 
           tag.reload
-          assert_equal 'jon', tag.name
+          assert_equal "jon", tag.name
         end
 
         tag.reload
-        assert_equal 'emily', tag.name
+        assert_equal "emily", tag.name
       end
     end