Merge pull request rails#7458 from frodsan/fix_orddep_basics

fix order dependent test in AR::BasicsTest

activerecord/test/cases/base_test.rb

@@ -466,13 +466,13 @@ def test_table_name_guesses_with_inherited_prefixes_and_suffixes
   end
 
   def test_singular_table_name_guesses_for_individual_table
-    CreditCard.pluralize_table_names = false
-    CreditCard.reset_table_name
-    assert_equal "credit_card", CreditCard.table_name
+    Post.pluralize_table_names = false
+    Post.reset_table_name
+    assert_equal "post", Post.table_name
     assert_equal "categories", Category.table_name
   ensure
-    CreditCard.pluralize_table_names = true
-    CreditCard.reset_table_name
+    Post.pluralize_table_names = true
+    Post.reset_table_name
   end
 
   if current_adapter?(:MysqlAdapter) or current_adapter?(:Mysql2Adapter)