2 files changed, 6 insertions, 26 deletions
diff --git a/activerecord/test/cases/attributes_test.rb b/activerecord/test/cases/attributes_test.rb
index 4619293ac6..eeda9335ad 100644
--- a/activerecord/test/cases/attributes_test.rb
+++ b/activerecord/test/cases/attributes_test.rb
@@ -135,6 +135,12 @@ module ActiveRecord
       assert_equal 2, klass.new.counter
     end
 
+    test "user provided defaults are persisted even if unchanged" do
+      model = OverloadedType.create!
+
+      assert_equal "the overloaded default", model.reload.string_with_default
+    end
+
     if current_adapter?(:PostgreSQLAdapter)
       test "arrays types can be specified" do
         klass = Class.new(OverloadedType) do
diff --git a/activerecord/test/cases/dirty_test.rb b/activerecord/test/cases/dirty_test.rb
index 3a7cc572e6..216f228142 100644
--- a/activerecord/test/cases/dirty_test.rb
+++ b/activerecord/test/cases/dirty_test.rb
@@ -623,32 +623,6 @@ class DirtyTest < ActiveRecord::TestCase
     end
   end
 
-  test "defaults with type that implements `serialize`" do
-    type = Class.new(ActiveRecord::Type::Value) do
-      def cast(value)
-        value.to_i
-      end
-
-      def serialize(value)
-        value.to_s
-      end
-    end
-
-    model_class = Class.new(ActiveRecord::Base) do
-      self.table_name = 'numeric_data'
-      attribute :foo, type.new, default: 1
-    end
-
-    model = model_class.new
-    assert_not model.foo_changed?
-
-    model = model_class.new(foo: 1)
-    assert_not model.foo_changed?
-
-    model = model_class.new(foo: '1')
-    assert_not model.foo_changed?
-  end
-
   test "in place mutation detection" do
     pirate = Pirate.create!(catchphrase: "arrrr")
     pirate.catchphrase << " matey!"