diff --git a/activerecord/test/cases/associations/belongs_to_associations_test.rb b/activerecord/test/cases/associations/belongs_to_associations_test.rb
index fb1e6e7e7071463d868cd9257aeef3fac5023f80..4d5769d173d9a29968974993349f048e1b067bf3 100644
--- a/activerecord/test/cases/associations/belongs_to_associations_test.rb
+++ b/activerecord/test/cases/associations/belongs_to_associations_test.rb
@@ -5,8 +5,6 @@
 require 'models/topic'
 require 'models/reply'
 require 'models/computer'
-require 'models/customer'
-require 'models/order'
 require 'models/post'
 require 'models/author'
 require 'models/tag'
diff --git a/activerecord/test/cases/associations/callbacks_test.rb b/activerecord/test/cases/associations/callbacks_test.rb
index 91b1af125e4bf81bf578331c6b670b95319038a6..15537d6940e5490d4e64d56ff65e875857e107d8 100644
--- a/activerecord/test/cases/associations/callbacks_test.rb
+++ b/activerecord/test/cases/associations/callbacks_test.rb
@@ -1,8 +1,6 @@
 require "cases/helper"
 require 'models/post'
-require 'models/comment'
 require 'models/author'
-require 'models/category'
 require 'models/project'
 require 'models/developer'
 
diff --git a/activerecord/test/cases/associations/cascaded_eager_loading_test.rb b/activerecord/test/cases/associations/cascaded_eager_loading_test.rb
index f5d59c9a433f8f6d3c1088941abbe1c71d423a10..b93e49613dda8934f581ed5105966daa6ed9fd68 100644
--- a/activerecord/test/cases/associations/cascaded_eager_loading_test.rb
+++ b/activerecord/test/cases/associations/cascaded_eager_loading_test.rb
@@ -2,7 +2,6 @@
 require 'models/post'
 require 'models/comment'
 require 'models/author'
-require 'models/category'
 require 'models/categorization'
 require 'models/company'
 require 'models/topic'
diff --git a/activerecord/test/cases/associations/has_and_belongs_to_many_associations_test.rb b/activerecord/test/cases/associations/has_and_belongs_to_many_associations_test.rb
index d7e9ca0bcbb70ff41180a7e8be1f77d040bbddb0..6b4a1d940899b4620211fa3771f8c34c63af6560 100644
--- a/activerecord/test/cases/associations/has_and_belongs_to_many_associations_test.rb
+++ b/activerecord/test/cases/associations/has_and_belongs_to_many_associations_test.rb
@@ -2,20 +2,14 @@
 require 'models/developer'
 require 'models/project'
 require 'models/company'
-require 'models/topic'
-require 'models/reply'
-require 'models/computer'
 require 'models/customer'
 require 'models/order'
 require 'models/categorization'
 require 'models/category'
 require 'models/post'
 require 'models/author'
-require 'models/comment'
 require 'models/tag'
 require 'models/tagging'
-require 'models/person'
-require 'models/reader'
 require 'models/parrot'
 require 'models/pirate'
 require 'models/treasure'
diff --git a/activerecord/test/cases/associations_test.rb b/activerecord/test/cases/associations_test.rb
index ff9e9a472aedec0cccaf72800583a303009a4bea..a1c794c084ce89d57abafc4745fac7d4c2d49580 100644
--- a/activerecord/test/cases/associations_test.rb
+++ b/activerecord/test/cases/associations_test.rb
@@ -2,11 +2,6 @@
 require 'models/developer'
 require 'models/project'
 require 'models/company'
-require 'models/topic'
-require 'models/reply'
-require 'models/computer'
-require 'models/customer'
-require 'models/order'
 require 'models/categorization'
 require 'models/category'
 require 'models/post'
@@ -19,12 +14,6 @@
 require 'models/parrot'
 require 'models/ship_part'
 require 'models/ship'
-require 'models/treasure'
-require 'models/price_estimate'
-require 'models/club'
-require 'models/member'
-require 'models/membership'
-require 'models/sponsor'
 
 class AssociationsTest < ActiveRecord::TestCase
   fixtures :accounts, :companies, :developers, :projects, :developers_projects,
diff --git a/activerecord/test/cases/finder_test.rb b/activerecord/test/cases/finder_test.rb
index 860d330a7feec4fdf6e30884b20856e23781331a..a107c1a4745c29126bb4fcfee65ebd0b2044d838 100644
--- a/activerecord/test/cases/finder_test.rb
+++ b/activerecord/test/cases/finder_test.rb
@@ -10,7 +10,6 @@
 require 'models/project'
 require 'models/developer'
 require 'models/customer'
-require 'models/job'
 
 class DynamicFinderMatchTest < ActiveRecord::TestCase
   def test_find_no_match
diff --git a/activerecord/test/cases/method_scoping_test.rb b/activerecord/test/cases/method_scoping_test.rb
index 4e8ce1dac103cd2792da0fcbb88cad2c457ce75f..774b50e2e47a694bb4c9c3abd3e9637f6e952c3e 100644
--- a/activerecord/test/cases/method_scoping_test.rb
+++ b/activerecord/test/cases/method_scoping_test.rb
@@ -8,7 +8,6 @@
 require 'models/developer'
 require 'models/project'
 require 'models/comment'
-require 'models/category'
 
 class MethodScopingTest < ActiveRecord::TestCase
   fixtures :authors, :developers, :projects, :comments, :posts, :developers_projects
@@ -543,4 +542,4 @@ def test_nested_scoped_find_merges_new_and_old_style_joins
     assert_equal 1, scoped_authors.size
     assert_equal authors(:david).attributes, scoped_authors.first.attributes
   end
-end
\ No newline at end of file
+end
diff --git a/activerecord/test/cases/persistence_test.rb b/activerecord/test/cases/persistence_test.rb
index 54fe991648cef8cf7091b0c5f463ba813b53d4da..1cc3a337c37840681563898a59a9f288b650cb29 100644
--- a/activerecord/test/cases/persistence_test.rb
+++ b/activerecord/test/cases/persistence_test.rb
@@ -5,15 +5,8 @@
 require 'models/reply'
 require 'models/category'
 require 'models/company'
-require 'models/customer'
 require 'models/developer'
 require 'models/project'
-require 'models/default'
-require 'models/auto_id'
-require 'models/column_name'
-require 'models/subscriber'
-require 'models/keyboard'
-require 'models/comment'
 require 'models/minimalistic'
 require 'models/warehouse_thing'
 require 'models/parrot'
diff --git a/activerecord/test/cases/query_cache_test.rb b/activerecord/test/cases/query_cache_test.rb
index 68abca70b3ae526c9e7841490824ebe810d40f82..f0d97a00d0514864bbbfd1cc637110c1e0df442a 100644
--- a/activerecord/test/cases/query_cache_test.rb
+++ b/activerecord/test/cases/query_cache_test.rb
@@ -1,8 +1,6 @@
 require "cases/helper"
 require 'models/topic'
-require 'models/reply'
 require 'models/task'
-require 'models/course'
 require 'models/category'
 require 'models/post'
 
diff --git a/activerecord/test/cases/relations_test.rb b/activerecord/test/cases/relations_test.rb
index ffde8daa071b6f10efce094f2d4064efe449d6f0..cb252d56fe433c0cb1499a1ee334de91cf90af90 100644
--- a/activerecord/test/cases/relations_test.rb
+++ b/activerecord/test/cases/relations_test.rb
@@ -1,5 +1,4 @@
 require "cases/helper"
-require 'models/tag'
 require 'models/tagging'
 require 'models/post'
 require 'models/topic'
diff --git a/activerecord/test/cases/transaction_callbacks_test.rb b/activerecord/test/cases/transaction_callbacks_test.rb
index df123c9de8a9b8d715ec3b405e494e1d26e50504..ffc2cd638f038357f38ed60c6bb7be99e4c5d7fe 100644
--- a/activerecord/test/cases/transaction_callbacks_test.rb
+++ b/activerecord/test/cases/transaction_callbacks_test.rb
@@ -1,6 +1,5 @@
 require "cases/helper"
 require 'models/topic'
-require 'models/reply'
 
 class TransactionCallbacksTest < ActiveRecord::TestCase
   self.use_transactional_fixtures = false
diff --git a/activerecord/test/cases/validations/i18n_generate_message_validation_test.rb b/activerecord/test/cases/validations/i18n_generate_message_validation_test.rb
index 454e42ed37cde7eccdcf9bc40478c19cfa66634d..628029f8df61cfc6b77dcff085713998960b8e13 100644
--- a/activerecord/test/cases/validations/i18n_generate_message_validation_test.rb
+++ b/activerecord/test/cases/validations/i18n_generate_message_validation_test.rb
@@ -1,6 +1,5 @@
 require "cases/helper"
 require 'models/topic'
-require 'models/reply'
 
 class I18nGenerateMessageValidationTest < ActiveRecord::TestCase
   def setup
diff --git a/activerecord/test/cases/validations_test.rb b/activerecord/test/cases/validations_test.rb
index 3f1b0e333fbc8ec8f74bf8272a84dc7517c6ad92..fd771ef4be7a455c1f87a53af956061d382dfcdb 100644
--- a/activerecord/test/cases/validations_test.rb
+++ b/activerecord/test/cases/validations_test.rb
@@ -4,11 +4,6 @@
 require 'models/reply'
 require 'models/person'
 require 'models/developer'
-require 'models/warehouse_thing'
-require 'models/guid'
-require 'models/owner'
-require 'models/pet'
-require 'models/event'
 require 'models/parrot'
 require 'models/company'
 
diff --git a/activerecord/test/cases/xml_serialization_test.rb b/activerecord/test/cases/xml_serialization_test.rb
index 751946ffc54e75efc0ec76c390d0a3827295ec93..b11b340e94cc3863cb847e13232a8627ea9446ae 100644
--- a/activerecord/test/cases/xml_serialization_test.rb
+++ b/activerecord/test/cases/xml_serialization_test.rb
@@ -2,7 +2,6 @@
 require 'models/contact'
 require 'models/post'
 require 'models/author'
-require 'models/tagging'
 require 'models/comment'
 require 'models/company_in_module'