1 files changed, 31 insertions, 2 deletions
diff --git a/activerecord/test/cases/associations/has_many_associations_test.rb b/activerecord/test/cases/associations/has_many_associations_test.rb
index eb94870a35..e975f4fbdd 100644
--- a/activerecord/test/cases/associations/has_many_associations_test.rb
+++ b/activerecord/test/cases/associations/has_many_associations_test.rb
@@ -203,9 +203,22 @@ class HasManyAssociationsTest < ActiveRecord::TestCase
 
     bulb = car.bulbs.create
     assert_equal 'defaulty', bulb.name
+  end
+
+  def test_build_and_create_from_association_should_respect_passed_attributes_over_default_scope
+    car = Car.create(name: 'honda')
+
+    bulb = car.bulbs.build(name: 'exotic')
+    assert_equal 'exotic', bulb.name
 
-    bulb = car.bulbs.create(:name => 'exotic')
+    bulb = car.bulbs.create(name: 'exotic')
     assert_equal 'exotic', bulb.name
+
+    bulb = car.awesome_bulbs.build(frickinawesome: false)
+    assert_equal false, bulb.frickinawesome
+
+    bulb = car.awesome_bulbs.create(frickinawesome: false)
+    assert_equal false, bulb.frickinawesome
   end
 
   def test_build_from_association_should_respect_scope
@@ -395,6 +408,16 @@ class HasManyAssociationsTest < ActiveRecord::TestCase
     end
 
     assert_no_queries do
+      bulbs.third_to_last()
+      bulbs.third_to_last({})
+    end
+
+    assert_no_queries do
+      bulbs.second_to_last()
+      bulbs.second_to_last({})
+    end
+
+    assert_no_queries do
       bulbs.last()
       bulbs.last({})
     end
@@ -2258,7 +2281,7 @@ class HasManyAssociationsTest < ActiveRecord::TestCase
     assert_equal [], authors(:david).posts_with_signature.map(&:title)
   end
 
-  test 'associations autosaves when object is already persited' do
+  test 'associations autosaves when object is already persisted' do
     bulb = Bulb.create!
     tyre = Tyre.create!
 
@@ -2335,6 +2358,12 @@ class HasManyAssociationsTest < ActiveRecord::TestCase
     assert_equal [first_bulb, second_bulb], car.bulbs
   end
 
+  test 'double insertion of new object to association when same association used in the after create callback of a new object' do
+    car = Car.create!
+    car.bulbs << TrickyBulb.new
+    assert_equal 1, car.bulbs.size
+  end
+
   def test_association_force_reload_with_only_true_is_deprecated
     company = Company.find(1)