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require 'test/unit'
require "securerandom"
class TestObjectId < Test::Unit::TestCase
def setup
@obj = Object.new
end
def test_dup_new_id
id = @obj.object_id
refute_equal id, @obj.dup.object_id
end
def test_dup_with_ivar_and_id
id = @obj.object_id
@obj.instance_variable_set(:@foo, 42)
copy = @obj.dup
refute_equal id, copy.object_id
assert_equal 42, copy.instance_variable_get(:@foo)
end
def test_dup_with_id_and_ivar
@obj.instance_variable_set(:@foo, 42)
id = @obj.object_id
copy = @obj.dup
refute_equal id, copy.object_id
assert_equal 42, copy.instance_variable_get(:@foo)
end
def test_dup_with_id_and_ivar_and_frozen
@obj.instance_variable_set(:@foo, 42)
@obj.freeze
id = @obj.object_id
copy = @obj.dup
refute_equal id, copy.object_id
assert_equal 42, copy.instance_variable_get(:@foo)
refute_predicate copy, :frozen?
end
def test_clone_new_id
id = @obj.object_id
refute_equal id, @obj.clone.object_id
end
def test_clone_with_ivar_and_id
id = @obj.object_id
@obj.instance_variable_set(:@foo, 42)
copy = @obj.clone
refute_equal id, copy.object_id
assert_equal 42, copy.instance_variable_get(:@foo)
end
def test_clone_with_id_and_ivar
@obj.instance_variable_set(:@foo, 42)
id = @obj.object_id
copy = @obj.clone
refute_equal id, copy.object_id
assert_equal 42, copy.instance_variable_get(:@foo)
end
def test_clone_with_id_and_ivar_and_frozen
@obj.instance_variable_set(:@foo, 42)
@obj.freeze
id = @obj.object_id
copy = @obj.clone
refute_equal id, copy.object_id
assert_equal 42, copy.instance_variable_get(:@foo)
assert_predicate copy, :frozen?
end
def test_marshal_new_id
return pass if @obj.is_a?(Module)
id = @obj.object_id
refute_equal id, Marshal.load(Marshal.dump(@obj)).object_id
end
def test_marshal_with_ivar_and_id
return pass if @obj.is_a?(Module)
id = @obj.object_id
@obj.instance_variable_set(:@foo, 42)
copy = Marshal.load(Marshal.dump(@obj))
refute_equal id, copy.object_id
assert_equal 42, copy.instance_variable_get(:@foo)
end
def test_marshal_with_id_and_ivar
return pass if @obj.is_a?(Module)
@obj.instance_variable_set(:@foo, 42)
id = @obj.object_id
copy = Marshal.load(Marshal.dump(@obj))
refute_equal id, copy.object_id
assert_equal 42, copy.instance_variable_get(:@foo)
end
def test_marshal_with_id_and_ivar_and_frozen
return pass if @obj.is_a?(Module)
@obj.instance_variable_set(:@foo, 42)
@obj.freeze
id = @obj.object_id
copy = Marshal.load(Marshal.dump(@obj))
refute_equal id, copy.object_id
assert_equal 42, copy.instance_variable_get(:@foo)
refute_predicate copy, :frozen?
end
end
class TestObjectIdClass < TestObjectId
def setup
@obj = Class.new
end
end
class TestObjectIdGeneric < TestObjectId
def setup
@obj = Array.new
end
end
class TestObjectIdTooComplex < TestObjectId
class TooComplex
end
def setup
if defined?(RubyVM::Shape::SHAPE_MAX_VARIATIONS)
assert_equal 8, RubyVM::Shape::SHAPE_MAX_VARIATIONS
end
8.times do |i|
TooComplex.new.instance_variable_set("@TestObjectIdTooComplex#{i}", 1)
end
@obj = TooComplex.new
@obj.instance_variable_set("@a#{rand(10_000)}", 1)
if defined?(RubyVM::Shape)
assert_predicate(RubyVM::Shape.of(@obj), :too_complex?)
end
end
end
class TestObjectIdTooComplexClass < TestObjectId
class TooComplex < Module
end
def setup
if defined?(RubyVM::Shape::SHAPE_MAX_VARIATIONS)
assert_equal 8, RubyVM::Shape::SHAPE_MAX_VARIATIONS
end
@obj = TooComplex.new
@obj.instance_variable_set("@___#{SecureRandom.hex}", 1)
8.times do |i|
@obj.instance_variable_set("@TestObjectIdTooComplexClass#{i}", 1)
@obj.remove_instance_variable("@TestObjectIdTooComplexClass#{i}")
end
@obj.instance_variable_set("@test", 1)
if defined?(RubyVM::Shape)
assert_predicate(RubyVM::Shape.of(@obj), :too_complex?)
end
end
end
class TestObjectIdTooComplexGeneric < TestObjectId
class TooComplex < Array
end
def setup
if defined?(RubyVM::Shape::SHAPE_MAX_VARIATIONS)
assert_equal 8, RubyVM::Shape::SHAPE_MAX_VARIATIONS
end
8.times do |i|
TooComplex.new.instance_variable_set("@TestObjectIdTooComplexGeneric#{i}", 1)
end
@obj = TooComplex.new
@obj.instance_variable_set("@a#{rand(10_000)}", 1)
@obj.instance_variable_set("@a#{rand(10_000)}", 1)
if defined?(RubyVM::Shape)
assert_predicate(RubyVM::Shape.of(@obj), :too_complex?)
end
end
end
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