--- /dev/null
+require "cases/helper"
+require 'models/contact'
+require 'models/post'
+require 'models/author'
+require 'models/tagging'
+require 'models/tag'
+require 'models/comment'
+
+class JsonSerializationTest < ActiveRecord::TestCase
+ class NamespacedContact < Contact
+ column :name, :string
+ end
+
+ def setup
+ @contact = Contact.new(
+ :name => 'Konata Izumi',
+ :age => 16,
+ :avatar => 'binarydata',
+ :created_at => Time.utc(2006, 8, 1),
+ :awesome => true,
+ :preferences => { :shows => 'anime' }
+ )
+ end
+
+ def test_should_demodulize_root_in_json
+ NamespacedContact.include_root_in_json = true
+ @contact = NamespacedContact.new :name => 'whatever'
+ json = @contact.to_json
+ assert_match %r{^\{"namespaced_contact": \{}, json
+ end
+
+ def test_should_include_root_in_json
+ Contact.include_root_in_json = true
+ 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
+ ensure
+ Contact.include_root_in_json = false
+ end
+
+ def test_should_encode_all_encodable_attributes
+ 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
+
+ def test_should_allow_attribute_filtering_with_only
+ 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
+
+ def test_should_allow_attribute_filtering_with_except
+ 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
+
+ def test_methods_are_called_on_object
+ # 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
+end
+
+class DatabaseConnectedJsonEncodingTest < ActiveRecord::TestCase
+ fixtures :authors, :posts, :comments, :tags, :taggings
+
+ def setup
+ @david = authors(:david)
+ @mary = authors(:mary)
+ end
+
+ def test_includes_uses_association_name
+ json = @david.to_json(:include => :posts)
+
+ assert_match %r{"posts": \[}, json
+
+ assert_match %r{"id": 1}, json
+ assert_match %r{"name": "David"}, json
+
+ assert_match %r{"author_id": 1}, json
+ assert_match %r{"title": "Welcome to the weblog"}, json
+ assert_match %r{"body": "Such a lovely day"}, json
+
+ assert_match %r{"title": "So I was thinking"}, json
+ assert_match %r{"body": "Like I hopefully always am"}, json
+ end
+
+ def test_includes_uses_association_name_and_applies_attribute_filters
+ json = @david.to_json(:include => { :posts => { :only => :title } })
+
+ assert_match %r{"name": "David"}, json
+ assert_match %r{"posts": \[}, json
+
+ assert_match %r{"title": "Welcome to the weblog"}, json
+ assert_no_match %r{"body": "Such a lovely day"}, json
+
+ assert_match %r{"title": "So I was thinking"}, json
+ assert_no_match %r{"body": "Like I hopefully always am"}, json
+ end
+
+ def test_includes_fetches_second_level_associations
+ json = @david.to_json(:include => { :posts => { :include => { :comments => { :only => :body } } } })
+
+ assert_match %r{"name": "David"}, json
+ assert_match %r{"posts": \[}, json
+
+ assert_match %r{"comments": \[}, json
+ assert_match %r{\{"body": "Thank you again for the welcome"\}}, json
+ assert_match %r{\{"body": "Don't think too hard"\}}, json
+ assert_no_match %r{"post_id": }, json
+ end
+
+ def test_includes_fetches_nth_level_associations
+ json = @david.to_json(
+ :include => {
+ :posts => {
+ :include => {
+ :taggings => {
+ :include => {
+ :tag => { :only => :name }
+ }
+ }
+ }
+ }
+ })
+
+ assert_match %r{"name": "David"}, json
+ assert_match %r{"posts": \[}, json
+
+ assert_match %r{"taggings": \[}, json
+ assert_match %r{"tag": \{"name": "General"\}}, json
+ end
+
+ def test_should_not_call_methods_on_associations_that_dont_respond
+ def @david.favorite_quote; "Constraints are liberating"; end
+ json = @david.to_json(:include => :posts, :methods => :favorite_quote)
+
+ assert !@david.posts.first.respond_to?(:favorite_quote)
+ assert_match %r{"favorite_quote": "Constraints are liberating"}, json
+ assert_equal %r{"favorite_quote": }.match(json).size, 1
+ end
+
+ def test_should_allow_only_option_for_list_of_authors
+ authors = [@david, @mary]
+
+ assert_equal %([{"name": "David"}, {"name": "Mary"}]), authors.to_json(:only => :name)
+ end
+
+ def test_should_allow_except_option_for_list_of_authors
+ authors = [@david, @mary]
+
+ assert_equal %([{"id": 1}, {"id": 2}]), authors.to_json(:except => [:name, :author_address_id, :author_address_extra_id])
+ end
+
+ def test_should_allow_includes_for_list_of_authors
+ authors = [@david, @mary]
+ json = authors.to_json(
+ :only => :name,
+ :include => {
+ :posts => { :only => :id }
+ }
+ )
+
+ ['"name": "David"', '"posts": [', '{"id": 1}', '{"id": 2}', '{"id": 4}',
+ '{"id": 5}', '{"id": 6}', '"name": "Mary"', '"posts": [{"id": 7}]'].each do |fragment|
+ assert json.include?(fragment), json
+ end
+ end
+
+ def test_should_allow_options_for_hash_of_authors
+ authors_hash = {
+ 1 => @david,
+ 2 => @mary
+ }
+
+ assert_equal %({1: {"name": "David"}}), authors_hash.to_json(:only => [1, :name])
+ end
+end
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