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rails--rails/activemodel/test/cases/model_test.rb

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# frozen_string_literal: true
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