Rename "Fixtures" class to "FixtureSet"

Rename `ActiveRecord::Fixtures` class to `ActiveRecord::FixtureSet`.  Instances of this class normally hold a collection of fixtures (records) loaded either from a single YAML file, or from a file and a folder with the same name.  This change make the class name singular and makes the class easier to distinguish from the modules like `ActiveRecord::TestFixtures`, which operates on multiple fixture sets, or `DelegatingFixtures`, `::Fixtures`, etc., and from the class `ActiveRecord::Fixture`, which corresponds to a single fixture.

1 files changed, 2 insertions, 2 deletions

diff --git a/activerecord/test/cases/adapters/mysql2/reserved_word_test.rb b/activerecord/test/cases/adapters/mysql2/reserved_word_test.rb
index 9fd07f014e..1017b0758d 100644
--- a/activerecord/test/cases/adapters/mysql2/reserved_word_test.rb
+++ b/activerecord/test/cases/adapters/mysql2/reserved_word_test.rb
@@ -136,9 +136,9 @@ class MysqlReservedWordTest < ActiveRecord::TestCase
   #the following functions were added to DRY test cases
 
   private
-  # custom fixture loader, uses Fixtures#create_fixtures and appends base_path to the current file's path
+  # custom fixture loader, uses FixtureSet#create_fixtures and appends base_path to the current file's path
   def create_test_fixtures(*fixture_names)
-    ActiveRecord::Fixtures.create_fixtures(FIXTURES_ROOT + "/reserved_words", fixture_names)
+    ActiveRecord::FixtureSet.create_fixtures(FIXTURES_ROOT + "/reserved_words", fixture_names)
   end
 
   # custom drop table, uses execute on connection to drop a table if it exists. note: escapes table_name