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ac112f2b5d
Fixes [Bug #16332] Constant access was changed to no longer allow top-level constant access through `nil`, but `defined?` wasn't changed at the same time to stay consistent. Use a separate defined type to distinguish between a constant referenced from the current lexical scope and one referenced from another namespace.
83 lines
2 KiB
Ruby
83 lines
2 KiB
Ruby
# -*- coding: us-ascii -*-
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# frozen_string_literal: false
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require 'test/unit'
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class TestConst < Test::Unit::TestCase
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TEST1 = 1
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TEST2 = 2
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module Const
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TEST3 = 3
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TEST4 = 4
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end
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module Const2
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TEST3 = 6
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TEST4 = 8
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end
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def test_const
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assert defined?(TEST1)
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assert_equal 1, TEST1
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assert defined?(TEST2)
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assert_equal 2, TEST2
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self.class.class_eval {
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include Const
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}
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assert defined?(TEST1)
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assert_equal 1, TEST1
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assert defined?(TEST2)
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assert_equal 2, TEST2
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assert defined?(TEST3)
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assert_equal 3, TEST3
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assert defined?(TEST4)
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assert_equal 4, TEST4
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self.class.class_eval {
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include Const2
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}
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# STDERR.print "intentionally redefines TEST3, TEST4\n" if $VERBOSE
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assert defined?(TEST1)
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assert_equal 1, TEST1
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assert defined?(TEST2)
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assert_equal 2, TEST2
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assert defined?(TEST3)
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assert_equal 6, TEST3
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assert defined?(TEST4)
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assert_equal 8, TEST4
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end
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def test_const_access_from_nil
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assert_raise(TypeError) { eval("nil::Object") }
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assert_nil eval("defined?(nil::Object)")
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assert_raise(TypeError) { eval("c = nil; c::Object") }
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assert_nil eval("c = nil; defined?(c::Object)")
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assert_raise(TypeError) { eval("sc = Class.new; sc::C = nil; sc::C::Object") }
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assert_nil eval("sc = Class.new; sc::C = nil; defined?(sc::C::Object)")
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end
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def test_redefinition
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c = Class.new
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name = "X\u{5b9a 6570}"
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c.const_set(name, 1)
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prev_line = __LINE__ - 1
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assert_warning(<<-WARNING) {c.const_set(name, 2)}
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#{__FILE__}:#{__LINE__-1}: warning: already initialized constant #{c}::#{name}
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#{__FILE__}:#{prev_line}: warning: previous definition of #{name} was here
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WARNING
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end
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def test_redefinition_memory_leak
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code = <<-PRE
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350000.times { FOO = :BAR }
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PRE
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assert_no_memory_leak(%w[-W0 -], '', code, 'redefined constant', timeout: 30)
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end
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def test_toplevel_lookup
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assert_raise(NameError, '[Feature #11547]') {TestConst::Object}
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end
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end
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