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# frozen_string_literal: true
require File.expand_path('../../test_helper', __FILE__)
require 'mocha/inspect'
require 'mocha/ruby_version'
require 'mocha/ignoring_warning'
require 'method_definer'
class ObjectInspectTest < Mocha::TestCase
include MethodDefiner
include Mocha::IgnoringWarning
def test_should_return_default_string_representation_of_object_not_including_instance_variables
object = Object.new
class << object
attr_accessor :attribute
end
object.attribute = 'instance_variable'
assert_match string_representation(id: object.__id__, klass: object.class), object.mocha_inspect
assert_no_match(/instance_variable/, object.mocha_inspect)
end
def test_should_return_customized_string_representation_of_object
object = Object.new
class << object
define_method(:inspect) { 'custom_inspect' }
end
assert_equal 'custom_inspect', object.mocha_inspect
end
def test_should_use_underscored_id_instead_of_object_id_or_id_so_that_they_can_be_stubbed
object = Object.new
ignoring_warning(/warning: redefining 'object_id' may cause serious problems/, if_: Mocha::RUBY_V34_PLUS) do
replace_instance_method(object, :object_id) do
flunk 'should not call `Object#object_id`'
end
end
define_instance_method(object, :id) do
flunk 'should not call `Object#id`'
end
assert_equal string_representation(id: object.__id__, klass: object.class), object.mocha_inspect
end
def test_should_not_call_object_instance_format_method
object = Object.new
class << object
def format(*)
'internal_format'
end
end
assert_no_match(/internal_format/, object.mocha_inspect)
end
private
def string_representation(id:, klass:)
address = id * 2
address += 0x100000000 if address < 0
"#<#{klass}:0x#{Kernel.format('%<address>x', address: address)}>"
end
end
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