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-rw-r--r--activemodel/test/cases/serializers/json_serialization_test.rb221
1 files changed, 221 insertions, 0 deletions
diff --git a/activemodel/test/cases/serializers/json_serialization_test.rb b/activemodel/test/cases/serializers/json_serialization_test.rb
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+++ b/activemodel/test/cases/serializers/json_serialization_test.rb
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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
+ include ActiveModel::Validations
+
+ def attributes=(hash)
+ hash.each do |k, v|
+ instance_variable_set("@#{k}", v)
+ end
+ end
+
+ remove_method :attributes if method_defined?(:attributes)
+
+ def attributes
+ instance_values
+ end
+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 (class method)" 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 root in json (option) even if the default is set to false" do
+ begin
+ Contact.include_root_in_json = false
+ json = @contact.to_json(:root => true)
+ assert_match %r{^\{"contact":\{}, json
+ ensure
+ Contact.include_root_in_json = true
+ end
+ end
+
+ test "should not include root in json (option)" do
+
+ json = @contact.to_json(:root => false)
+
+ assert_no_match %r{^\{"contact":\{}, json
+ 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
+ contact = Contact.new
+ contact.errors.add :name, "can't be blank"
+ contact.errors.add :name, "is too short (minimum is 2 characters)"
+ contact.errors.add :age, "must be 16 or over"
+
+ hash = ActiveSupport::OrderedHash.new
+ hash[:name] = ["can't be blank", "is too short (minimum is 2 characters)"]
+ hash[:age] = ["must be 16 or over"]
+ assert_equal hash.to_json, contact.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 "from_json should set the object's attributes" do
+ json = @contact.to_json
+ result = Contact.new.from_json(json)
+
+ assert_equal result.name, @contact.name
+ assert_equal result.age, @contact.age
+ assert_equal Time.parse(result.created_at), @contact.created_at
+ assert_equal result.awesome, @contact.awesome
+ assert_equal result.preferences, @contact.preferences
+ end
+
+ test "from_json should work without a root (method parameter)" do
+ json = @contact.to_json(:root => false)
+ result = Contact.new.from_json(json, false)
+
+ assert_equal result.name, @contact.name
+ assert_equal result.age, @contact.age
+ assert_equal Time.parse(result.created_at), @contact.created_at
+ assert_equal result.awesome, @contact.awesome
+ assert_equal result.preferences, @contact.preferences
+ end
+
+ test "from_json should work without a root (class attribute)" do
+ begin
+ Contact.include_root_in_json = false
+ json = @contact.to_json
+ result = Contact.new.from_json(json)
+
+ assert_equal result.name, @contact.name
+ assert_equal result.age, @contact.age
+ assert_equal Time.parse(result.created_at), @contact.created_at
+ assert_equal result.awesome, @contact.awesome
+ assert_equal result.preferences, @contact.preferences
+ ensure
+ Contact.include_root_in_json = true
+ 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
+
+ test "custom as_json options should be extendible" do
+ def @contact.as_json(options = {}); super(options.merge(:only => [:name])); end
+ json = @contact.to_json
+
+ assert_match %r{"name":"Konata Izumi"}, json
+ assert_no_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