require 'cases/helper' class ModelTest < ActiveModel::TestCase include ActiveModel::Lint::Tests class BasicModel 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 object.attr, "value" end def test_initialize_with_nil_or_empty_hash_params_does_not_explode assert_nothing_raised do BasicModel.new() BasicModel.new nil BasicModel.new({}) end end def test_persisted_is_always_false object = BasicModel.new(attr: "value") assert object.persisted? == false end end