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# frozen_string_literal: false
require 'test/unit'
class TestFrozen < Test::Unit::TestCase
def test_setting_ivar_on_frozen_obj
obj = Object.new
obj.freeze
assert_raise(FrozenError) { obj.instance_variable_set(:@a, 1) }
end
def test_setting_ivar_on_frozen_obj_with_ivars
obj = Object.new
obj.instance_variable_set(:@a, 1)
obj.freeze
assert_raise(FrozenError) { obj.instance_variable_set(:@b, 1) }
end
def test_setting_ivar_on_frozen_string
str = "str"
str.freeze
assert_raise(FrozenError) { str.instance_variable_set(:@a, 1) }
end
def test_setting_ivar_on_frozen_string_with_ivars
str = "str"
str.instance_variable_set(:@a, 1)
str.freeze
assert_raise(FrozenError) { str.instance_variable_set(:@b, 1) }
end
end
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