diff --git a/spec/dummyapp/.annotaterb.yml b/spec/dummyapp/.annotaterb.yml
new file mode 100644
index 00000000..084a25a4
--- /dev/null
+++ b/spec/dummyapp/.annotaterb.yml
@@ -0,0 +1,3 @@
+---
+additional_file_patterns:
+  - "app/serializers/%MODEL_NAME%_*_serializer.rb"
diff --git a/spec/dummyapp/app/models/test_default.rb b/spec/dummyapp/app/models/test_default.rb
index ae6e7d75..b3e9f11f 100644
--- a/spec/dummyapp/app/models/test_default.rb
+++ b/spec/dummyapp/app/models/test_default.rb
@@ -1,4 +1,19 @@
 # frozen_string_literal: true
 
+# == Schema Information
+#
+# Table name: test_defaults
+#
+#  id         :bigint           not null, primary key
+#  boolean    :boolean          default(FALSE)
+#  date       :date             default(Tue, 04 Jul 2023)
+#  datetime   :datetime         default(Tue, 04 Jul 2023 12:34:56.000000000 UTC +00:00)
+#  decimal    :decimal(14, 2)   default(43.21)
+#  float      :float            default(12.34)
+#  integer    :integer          default(99)
+#  string     :string           default("hello world!")
+#  created_at :datetime         not null
+#  updated_at :datetime         not null
+#
 class TestDefault < ApplicationRecord
 end
diff --git a/spec/dummyapp/app/serializers/test_default_index_serializer.rb b/spec/dummyapp/app/serializers/test_default_index_serializer.rb
new file mode 100644
index 00000000..88f8454f
--- /dev/null
+++ b/spec/dummyapp/app/serializers/test_default_index_serializer.rb
@@ -0,0 +1,22 @@
+# frozen_string_literal: true
+
+# == Schema Information
+#
+# Table name: test_defaults
+#
+#  id         :bigint           not null, primary key
+#  boolean    :boolean          default(FALSE)
+#  date       :date             default(Tue, 04 Jul 2023)
+#  datetime   :datetime         default(Tue, 04 Jul 2023 12:34:56.000000000 UTC +00:00)
+#  decimal    :decimal(14, 2)   default(43.21)
+#  float      :float            default(12.34)
+#  integer    :integer          default(99)
+#  string     :string           default("hello world!")
+#  created_at :datetime         not null
+#  updated_at :datetime         not null
+#
+class TestDefaultIndexSerializer
+  def initialize(test_default)
+    @test_default = test_default
+  end
+end
diff --git a/spec/dummyapp/app/serializers/test_default_show_serializer.rb b/spec/dummyapp/app/serializers/test_default_show_serializer.rb
new file mode 100644
index 00000000..ebd99d46
--- /dev/null
+++ b/spec/dummyapp/app/serializers/test_default_show_serializer.rb
@@ -0,0 +1,22 @@
+# frozen_string_literal: true
+
+# == Schema Information
+#
+# Table name: test_defaults
+#
+#  id         :bigint           not null, primary key
+#  boolean    :boolean          default(FALSE)
+#  date       :date             default(Tue, 04 Jul 2023)
+#  datetime   :datetime         default(Tue, 04 Jul 2023 12:34:56.000000000 UTC +00:00)
+#  decimal    :decimal(14, 2)   default(43.21)
+#  float      :float            default(12.34)
+#  integer    :integer          default(99)
+#  string     :string           default("hello world!")
+#  created_at :datetime         not null
+#  updated_at :datetime         not null
+#
+class TestDefaultShowSerializer
+  def initialize(test_default)
+    @test_default = test_default
+  end
+end