test case for `serialize` default values.

Closes #9110

4 files changed, 13 insertions, 0 deletions

diff --git a/activerecord/test/cases/serialized_attribute_test.rb b/activerecord/test/cases/serialized_attribute_test.rb
index 295c7e13fa..726338db14 100644
--- a/activerecord/test/cases/serialized_attribute_test.rb
+++ b/activerecord/test/cases/serialized_attribute_test.rb
@@ -1,6 +1,7 @@
 require 'cases/helper'
 require 'models/topic'
 require 'models/person'
+require 'models/traffic_light'
 require 'bcrypt'
 
 class SerializedAttributeTest < ActiveRecord::TestCase
@@ -234,4 +235,10 @@ class SerializedAttributeTest < ActiveRecord::TestCase
     person = person.reload
     assert_equal(insures, person.insures)
   end
+
+  def test_regression_serialized_default_on_text_column_with_null_false
+    light = TrafficLight.new
+    assert_equal [], light.state
+    assert_equal [], light.long_state
+  end
 end
diff --git a/activerecord/test/fixtures/traffic_lights.yml b/activerecord/test/fixtures/traffic_lights.yml
index 6dabd53474..81b4e47959 100644
--- a/activerecord/test/fixtures/traffic_lights.yml
+++ b/activerecord/test/fixtures/traffic_lights.yml
@@ -4,3 +4,7 @@ uk:
     - Green
     - Red
     - Orange
+  long_state:
+    - "Green, go ahead"
+    - "Red, wait"
+    - "Orange, caution light is about to switch"
\ No newline at end of file
diff --git a/activerecord/test/models/traffic_light.rb b/activerecord/test/models/traffic_light.rb
index 228f3f7bd4..a6b7edb882 100644
--- a/activerecord/test/models/traffic_light.rb
+++ b/activerecord/test/models/traffic_light.rb
@@ -1,3 +1,4 @@
 class TrafficLight < ActiveRecord::Base
   serialize :state, Array
+  serialize :long_state, Array
 end
diff --git a/activerecord/test/schema/schema.rb b/activerecord/test/schema/schema.rb
index cd9835259a..7b26fb82e6 100644
--- a/activerecord/test/schema/schema.rb
+++ b/activerecord/test/schema/schema.rb
@@ -685,6 +685,7 @@ ActiveRecord::Schema.define do
   create_table :traffic_lights, :force => true do |t|
     t.string   :location
     t.string   :state
+    t.text     :long_state, :null => false
     t.datetime :created_at
     t.datetime :updated_at
   end