require "cases/helper" class ModelTest < ActiveModel::TestCase include ActiveModel::Lint::Tests module DefaultValue def self.included(klass) klass.class_eval { attr_accessor :hello } end def initialize(*args) @attr ||= "default value" super end end class BasicModel include DefaultValue include ActiveModel::Model attr_accessor :attr end class BasicModelWithReversedMixins include ActiveModel::Model include DefaultValue attr_accessor :attr end class SimpleModel include ActiveModel::Model attr_accessor :attr end def setup @model = BasicModel.new end def test_initialize_with_params object = BasicModel.new(attr: "value") assert_equal "value", object.attr end def test_initialize_with_params_and_mixins_reversed object = BasicModelWithReversedMixins.new(attr: "value") assert_equal "value", object.attr end def test_initialize_with_nil_or_empty_hash_params_does_not_explode assert_nothing_raised do BasicModel.new() BasicModel.new(nil) BasicModel.new({}) SimpleModel.new(attr: "value") end end def test_persisted_is_always_false object = BasicModel.new(attr: "value") assert object.persisted? == false end def test_mixin_inclusion_chain object = BasicModel.new assert_equal "default value", object.attr end def test_mixin_initializer_when_args_exist object = BasicModel.new(hello: "world") assert_equal "world", object.hello end def test_mixin_initializer_when_args_dont_exist assert_raises(ActiveModel::UnknownAttributeError) do SimpleModel.new(hello: "world") end end end