diff --git a/activerecord/test/cases/associations/has_many_associations_test.rb b/activerecord/test/cases/associations/has_many_associations_test.rb
index 367f87031c..231aad990d 100644
--- a/activerecord/test/cases/associations/has_many_associations_test.rb
+++ b/activerecord/test/cases/associations/has_many_associations_test.rb
@@ -1144,7 +1144,8 @@ class HasManyAssociationsTest < ActiveRecord::TestCase
   end
 
   def test_restrict
-    # ActiveRecord::Base.dependent_restrict_raises = true, by default
+    option_before = ActiveRecord::Base.dependent_restrict_raises
+    ActiveRecord::Base.dependent_restrict_raises = true
 
     firm = RestrictedFirm.create!(:name => 'restrict')
     firm.companies.create(:name => 'child')
@@ -1153,13 +1154,13 @@ class HasManyAssociationsTest < ActiveRecord::TestCase
     assert_raise(ActiveRecord::DeleteRestrictionError) { firm.destroy }
     assert RestrictedFirm.exists?(:name => 'restrict')
     assert firm.companies.exists?(:name => 'child')
+  ensure
+    ActiveRecord::Base.dependent_restrict_raises = option_before
   end
 
   def test_restrict_when_dependent_restrict_raises_config_set_to_false
-    # ActiveRecord::Base.dependent_restrict_raises = true, by default
-
+    option_before = ActiveRecord::Base.dependent_restrict_raises
     ActiveRecord::Base.dependent_restrict_raises = false
-    # add an error on the model instead of raising ActiveRecord::DeleteRestrictionError
 
     firm = RestrictedFirm.create!(:name => 'restrict')
     firm.companies.create(:name => 'child')
@@ -1174,7 +1175,7 @@ class HasManyAssociationsTest < ActiveRecord::TestCase
     assert RestrictedFirm.exists?(:name => 'restrict')
     assert firm.companies.exists?(:name => 'child')
   ensure
-    ActiveRecord::Base.dependent_restrict_raises = true
+    ActiveRecord::Base.dependent_restrict_raises = option_before
   end
 
   def test_included_in_collection
@@ -1680,9 +1681,14 @@ class HasManyAssociationsTest < ActiveRecord::TestCase
   end
 
   def test_building_has_many_association_with_restrict_dependency
+    option_before = ActiveRecord::Base.dependent_restrict_raises
+    ActiveRecord::Base.dependent_restrict_raises = true
+
     klass = Class.new(ActiveRecord::Base)
-    
-    assert_deprecated     { klass.has_many :companies, :dependent => :restrict }  
+
+    assert_deprecated     { klass.has_many :companies, :dependent => :restrict }
     assert_not_deprecated { klass.has_many :companies }
+  ensure
+    ActiveRecord::Base.dependent_restrict_raises = option_before
   end
 end
diff --git a/activerecord/test/cases/associations/has_one_associations_test.rb b/activerecord/test/cases/associations/has_one_associations_test.rb
index 7c6736fb95..37be6a279d 100644
--- a/activerecord/test/cases/associations/has_one_associations_test.rb
+++ b/activerecord/test/cases/associations/has_one_associations_test.rb
@@ -157,7 +157,8 @@ class HasOneAssociationsTest < ActiveRecord::TestCase
   end
 
   def test_dependence_with_restrict
-    # ActiveRecord::Base.dependent_restrict_raises = true, by default
+    option_before = ActiveRecord::Base.dependent_restrict_raises
+    ActiveRecord::Base.dependent_restrict_raises = true
 
     firm = RestrictedFirm.create!(:name => 'restrict')
     firm.create_account(:credit_limit => 10)
@@ -167,13 +168,13 @@ class HasOneAssociationsTest < ActiveRecord::TestCase
     assert_raise(ActiveRecord::DeleteRestrictionError) { firm.destroy }
     assert RestrictedFirm.exists?(:name => 'restrict')
     assert firm.account.present?
+  ensure
+    ActiveRecord::Base.dependent_restrict_raises = option_before
   end
 
   def test_dependence_with_restrict_with_dependent_restrict_raises_config_set_to_false
-    # ActiveRecord::Base.dependent_restrict_raises = true, by default
-
+    option_before = ActiveRecord::Base.dependent_restrict_raises
     ActiveRecord::Base.dependent_restrict_raises = false
-    # adds an error on the model instead of raising ActiveRecord::DeleteRestrictionError
 
     firm = RestrictedFirm.create!(:name => 'restrict')
     firm.create_account(:credit_limit => 10)
@@ -187,7 +188,7 @@ class HasOneAssociationsTest < ActiveRecord::TestCase
     assert RestrictedFirm.exists?(:name => 'restrict')
     assert firm.account.present?
   ensure
-    ActiveRecord::Base.dependent_restrict_raises = true
+    ActiveRecord::Base.dependent_restrict_raises = option_before
   end
 
   def test_successful_build_association
@@ -484,9 +485,14 @@ class HasOneAssociationsTest < ActiveRecord::TestCase
   end
 
   def test_building_has_one_association_with_dependent_restrict
+    option_before = ActiveRecord::Base.dependent_restrict_raises
+    ActiveRecord::Base.dependent_restrict_raises = true
+
     klass = Class.new(ActiveRecord::Base)
-    
+
     assert_deprecated     { klass.has_one :account, :dependent => :restrict }
     assert_not_deprecated { klass.has_one :account }
+  ensure
+    ActiveRecord::Base.dependent_restrict_raises = option_before
   end
 end
diff --git a/activerecord/test/cases/helper.rb b/activerecord/test/cases/helper.rb
index b4598ab32a..359cabd016 100644
--- a/activerecord/test/cases/helper.rb
+++ b/activerecord/test/cases/helper.rb
@@ -22,6 +22,9 @@ ActiveSupport::Deprecation.debug = true
 # Enable Identity Map only when ENV['IM'] is set to "true"
 ActiveRecord::IdentityMap.enabled = (ENV['IM'] == "true")
 
+# Avoid deprecation warning setting dependent_restric_raises to false. The default is true
+ActiveRecord::Base.dependent_restrict_raises = false
+
 # Connect to the database
 ARTest.connect