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require 'cases/helper'
require 'models/contact'
require 'models/automobile'
require 'active_support/core_ext/object/instance_variables'
class Contact
extend ActiveModel::Naming
include ActiveModel::Serializers::JSON
def attributes
instance_values
end unless method_defined?(:attributes)
end
class JsonSerializationTest < ActiveModel::TestCase
def setup
@contact = Contact.new
@contact.name = 'Konata Izumi'
@contact.age = 16
@contact.created_at = Time.utc(2006, 8, 1)
@contact.awesome = true
@contact.preferences = { 'shows' => 'anime' }
end
test "should include root in json" do
json = @contact.to_json
assert_match %r{^\{"contact":\{}, json
assert_match %r{"name":"Konata Izumi"}, json
assert_match %r{"age":16}, json
assert json.include?(%("created_at":#{ActiveSupport::JSON.encode(Time.utc(2006, 8, 1))}))
assert_match %r{"awesome":true}, json
assert_match %r{"preferences":\{"shows":"anime"\}}, json
end
test "should not include root in json" do
begin
Contact.include_root_in_json = false
json = @contact.to_json
assert_no_match %r{^\{"contact":\{}, json
assert_match %r{"name":"Konata Izumi"}, json
assert_match %r{"age":16}, json
assert json.include?(%("created_at":#{ActiveSupport::JSON.encode(Time.utc(2006, 8, 1))}))
assert_match %r{"awesome":true}, json
assert_match %r{"preferences":\{"shows":"anime"\}}, json
ensure
Contact.include_root_in_json = true
end
end
test "should include custom root in json" do
json = @contact.to_json(:root => 'json_contact')
assert_match %r{^\{"json_contact":\{}, json
assert_match %r{"name":"Konata Izumi"}, json
assert_match %r{"age":16}, json
assert json.include?(%("created_at":#{ActiveSupport::JSON.encode(Time.utc(2006, 8, 1))}))
assert_match %r{"awesome":true}, json
assert_match %r{"preferences":\{"shows":"anime"\}}, json
end
test "should encode all encodable attributes" do
json = @contact.to_json
assert_match %r{"name":"Konata Izumi"}, json
assert_match %r{"age":16}, json
assert json.include?(%("created_at":#{ActiveSupport::JSON.encode(Time.utc(2006, 8, 1))}))
assert_match %r{"awesome":true}, json
assert_match %r{"preferences":\{"shows":"anime"\}}, json
end
test "should allow attribute filtering with only" do
json = @contact.to_json(:only => [:name, :age])
assert_match %r{"name":"Konata Izumi"}, json
assert_match %r{"age":16}, json
assert_no_match %r{"awesome":true}, json
assert !json.include?(%("created_at":#{ActiveSupport::JSON.encode(Time.utc(2006, 8, 1))}))
assert_no_match %r{"preferences":\{"shows":"anime"\}}, json
end
test "should allow attribute filtering with except" do
json = @contact.to_json(:except => [:name, :age])
assert_no_match %r{"name":"Konata Izumi"}, json
assert_no_match %r{"age":16}, json
assert_match %r{"awesome":true}, json
assert json.include?(%("created_at":#{ActiveSupport::JSON.encode(Time.utc(2006, 8, 1))}))
assert_match %r{"preferences":\{"shows":"anime"\}}, json
end
test "methods are called on object" do
# Define methods on fixture.
def @contact.label; "Has cheezburger"; end
def @contact.favorite_quote; "Constraints are liberating"; end
# Single method.
assert_match %r{"label":"Has cheezburger"}, @contact.to_json(:only => :name, :methods => :label)
# Both methods.
methods_json = @contact.to_json(:only => :name, :methods => [:label, :favorite_quote])
assert_match %r{"label":"Has cheezburger"}, methods_json
assert_match %r{"favorite_quote":"Constraints are liberating"}, methods_json
end
test "should return OrderedHash for errors" do
car = Automobile.new
# run the validation
car.valid?
hash = ActiveSupport::OrderedHash.new
hash[:make] = "can't be blank"
hash[:model] = "is too short (minimum is 2 characters)"
assert_equal hash.to_json, car.errors.to_json
end
test "serializable_hash should not modify options passed in argument" do
options = { :except => :name }
@contact.serializable_hash(options)
assert_nil options[:only]
assert_equal :name, options[:except]
end
test "as_json should return a hash" do
json = @contact.as_json
assert_kind_of Hash, json
assert_kind_of Hash, json['contact']
%w(name age created_at awesome preferences).each do |field|
assert_equal @contact.send(field), json['contact'][field]
end
end
test "custom as_json should be honored when generating json" do
def @contact.as_json(options); { :name => name, :created_at => created_at }; end
json = @contact.to_json
assert_match %r{"name":"Konata Izumi"}, json
assert_match %r{"created_at":#{ActiveSupport::JSON.encode(Time.utc(2006, 8, 1))}}, json
assert_no_match %r{"awesome":}, json
assert_no_match %r{"preferences":}, json
end
end
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