1 files changed, 95 insertions, 0 deletions
diff --git a/activerecord/test/cases/serialization_test.rb b/activerecord/test/cases/serialization_test.rb
new file mode 100644
index 0000000000..3f52e80e11
--- /dev/null
+++ b/activerecord/test/cases/serialization_test.rb
@@ -0,0 +1,95 @@
+require "cases/helper"
+require 'models/contact'
+require 'models/topic'
+require 'models/book'
+
+class SerializationTest < ActiveRecord::TestCase
+  fixtures :books
+
+  FORMATS = [ :xml, :json ]
+
+  def setup
+    @contact_attributes = {
+      :name           => 'aaron stack',
+      :age            => 25,
+      :avatar         => 'binarydata',
+      :created_at     => Time.utc(2006, 8, 1),
+      :awesome        => false,
+      :preferences    => { :gem => '<strong>ruby</strong>' },
+      :alternative_id => nil,
+      :id             => nil
+    }
+  end
+
+  def test_include_root_in_json_is_false_by_default
+    assert_equal false, ActiveRecord::Base.include_root_in_json, "include_root_in_json should be false by default but was not"
+  end
+
+  def test_serialize_should_be_reversible
+    FORMATS.each do |format|
+      @serialized = Contact.new.send("to_#{format}")
+      contact = Contact.new.send("from_#{format}", @serialized)
+
+      assert_equal @contact_attributes.keys.collect(&:to_s).sort, contact.attributes.keys.collect(&:to_s).sort, "For #{format}"
+    end
+  end
+
+  def test_serialize_should_allow_attribute_only_filtering
+    FORMATS.each do |format|
+      @serialized = Contact.new(@contact_attributes).send("to_#{format}", :only => [ :age, :name ])
+      contact = Contact.new.send("from_#{format}", @serialized)
+      assert_equal @contact_attributes[:name], contact.name, "For #{format}"
+      assert_nil contact.avatar, "For #{format}"
+    end
+  end
+
+  def test_serialize_should_allow_attribute_except_filtering
+    FORMATS.each do |format|
+      @serialized = Contact.new(@contact_attributes).send("to_#{format}", :except => [ :age, :name ])
+      contact = Contact.new.send("from_#{format}", @serialized)
+      assert_nil contact.name, "For #{format}"
+      assert_nil contact.age, "For #{format}"
+      assert_equal @contact_attributes[:awesome], contact.awesome, "For #{format}"
+    end
+  end
+
+  def test_include_root_in_json_allows_inheritance
+    original_root_in_json = ActiveRecord::Base.include_root_in_json
+    ActiveRecord::Base.include_root_in_json = true
+
+    klazz = Class.new(ActiveRecord::Base)
+    klazz.table_name = 'topics'
+    assert klazz.include_root_in_json
+
+    klazz.include_root_in_json = false
+    assert ActiveRecord::Base.include_root_in_json
+    assert !klazz.include_root_in_json
+    assert !klazz.new.include_root_in_json
+  ensure
+    ActiveRecord::Base.include_root_in_json = original_root_in_json
+  end
+
+  def test_read_attribute_for_serialization_with_format_without_method_missing
+    klazz = Class.new(ActiveRecord::Base)
+    klazz.table_name = 'books'
+
+    book = klazz.new
+    assert_nil book.read_attribute_for_serialization(:format)
+  end
+
+  def test_read_attribute_for_serialization_with_format_after_init
+    klazz = Class.new(ActiveRecord::Base)
+    klazz.table_name = 'books'
+
+    book = klazz.new(format: 'paperback')
+    assert_equal 'paperback', book.read_attribute_for_serialization(:format)
+  end
+
+  def test_read_attribute_for_serialization_with_format_after_find
+    klazz = Class.new(ActiveRecord::Base)
+    klazz.table_name = 'books'
+
+    book = klazz.find(books(:awdr).id)
+    assert_equal 'paperback', book.read_attribute_for_serialization(:format)
+  end
+end