1 files changed, 31 insertions, 0 deletions
diff --git a/activerecord/test/cases/associations/has_many_associations_test.rb b/activerecord/test/cases/associations/has_many_associations_test.rb
index e90edbb213..b9c7ec6377 100644
--- a/activerecord/test/cases/associations/has_many_associations_test.rb
+++ b/activerecord/test/cases/associations/has_many_associations_test.rb
@@ -425,6 +425,37 @@ class HasManyAssociationsTest < ActiveRecord::TestCase
     assert_equal 2, first_topic.replies.to_ary.size
   end
 
+  def test_build_via_block
+    company = companies(:first_firm)
+    new_client = assert_no_queries { company.clients_of_firm.build {|client| client.name = "Another Client" } }
+    assert !company.clients_of_firm.loaded?
+
+    assert_equal "Another Client", new_client.name
+    assert new_client.new_record?
+    assert_equal new_client, company.clients_of_firm.last
+    company.name += '-changed'
+    assert_queries(2) { assert company.save }
+    assert !new_client.new_record?
+    assert_equal 2, company.clients_of_firm(true).size
+  end
+
+  def test_build_many_via_block
+    company = companies(:first_firm)
+    new_clients = assert_no_queries do
+      company.clients_of_firm.build([{"name" => "Another Client"}, {"name" => "Another Client II"}]) do |client|
+        client.name = "changed"
+      end
+    end
+
+    assert_equal 2, new_clients.size
+    assert_equal "changed", new_clients.first.name
+    assert_equal "changed", new_clients.last.name
+
+    company.name += '-changed'
+    assert_queries(3) { assert company.save }
+    assert_equal 3, company.clients_of_firm(true).size
+  end
+
   def test_create_without_loading_association
     first_firm  = companies(:first_firm)
     Firm.column_names