diff options
Diffstat (limited to 'activemodel/test/cases/serializers/json_serialization_test.rb')
| -rw-r--r-- | activemodel/test/cases/serializers/json_serialization_test.rb | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/activemodel/test/cases/serializers/json_serialization_test.rb b/activemodel/test/cases/serializers/json_serialization_test.rb new file mode 100644 index 0000000000..84efc8de0d --- /dev/null +++ b/activemodel/test/cases/serializers/json_serialization_test.rb @@ -0,0 +1,204 @@ +# frozen_string_literal: true + +require "cases/helper" +require "models/contact" +require "active_support/core_ext/object/instance_variables" + +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 not include root in json (class method)" do + json = @contact.to_json + + assert_no_match %r{^\{"contact":\{}, json + assert_match %r{"name":"Konata Izumi"}, json + assert_match %r{"age":16}, json + assert_includes json, %("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 include root in json if include_root_in_json is true" do + original_include_root_in_json = Contact.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_includes json, %("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 = original_include_root_in_json + end + + test "should include root in json (option) even if the default is set to false" do + json = @contact.to_json(root: true) + + assert_match %r{^\{"contact":\{}, json + 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_includes json, %("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_includes json, %("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_not_includes json, %("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_includes json, %("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 Hash 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 = {} + 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 serialize timestamps" do + assert_equal "2006-08-01T00:00:00.000Z", @contact.as_json["created_at"] + end + + test "as_json should return a hash if include_root_in_json is true" do + original_include_root_in_json = Contact.include_root_in_json + Contact.include_root_in_json = true + 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).as_json, json["contact"][field] + end + ensure + Contact.include_root_in_json = original_include_root_in_json + end + + test "from_json should work without a root (class attribute)" 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 + 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 with a root (method parameter)" do + json = @contact.to_json(root: :true) + result = Contact.new.from_json(json, true) + + 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 "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 extensible" 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 + + test "Class.model_name should be json encodable" do + assert_match %r{"Contact"}, Contact.model_name.to_json + end +end |