mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
602 lines
17 KiB
Ruby
602 lines
17 KiB
Ruby
# frozen_string_literal: false
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require 'test/unit'
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class TestSymbol < Test::Unit::TestCase
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# [ruby-core:3573]
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def assert_eval_inspected(sym, valid = true)
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n = sym.inspect
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if valid
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bug5136 = '[ruby-dev:44314]'
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assert_not_match(/\A:"/, n, bug5136)
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end
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assert_nothing_raised(SyntaxError) {assert_equal(sym, eval(n))}
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end
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def test_intern
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assert_equal(':""', ''.intern.inspect)
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assert_equal(':$foo', '$foo'.intern.inspect)
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assert_equal(':"!foo"', '!foo'.intern.inspect)
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assert_equal(':"foo=="', "foo==".intern.inspect)
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end
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def test_all_symbols
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x = Symbol.all_symbols
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assert_kind_of(Array, x)
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assert_empty(x.reject {|s| s.is_a?(Symbol) })
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end
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def test_inspect_invalid
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# 2) Symbol#inspect sometimes returns invalid symbol representations:
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assert_eval_inspected(:"!")
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assert_eval_inspected(:"=", false)
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assert_eval_inspected(:"0", false)
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assert_eval_inspected(:"$1")
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assert_eval_inspected(:"@1", false)
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assert_eval_inspected(:"@@1", false)
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assert_eval_inspected(:"@", false)
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assert_eval_inspected(:"@@", false)
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end
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def assert_inspect_evaled(n)
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assert_nothing_raised(SyntaxError) {assert_equal(n, eval(n).inspect)}
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end
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def test_inspect_suboptimal
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# 3) Symbol#inspect sometimes returns suboptimal symbol representations:
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assert_inspect_evaled(':foo')
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assert_inspect_evaled(':foo!')
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assert_inspect_evaled(':bar?')
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assert_inspect_evaled(":<<")
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assert_inspect_evaled(':>>')
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assert_inspect_evaled(':<=')
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assert_inspect_evaled(':>=')
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assert_inspect_evaled(':=~')
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assert_inspect_evaled(':==')
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assert_inspect_evaled(':===')
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assert_raise(SyntaxError) {eval ':='}
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assert_inspect_evaled(':*')
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assert_inspect_evaled(':**')
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assert_raise(SyntaxError) {eval ':***'}
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assert_inspect_evaled(':+')
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assert_inspect_evaled(':-')
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assert_inspect_evaled(':+@')
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assert_inspect_evaled(':-@')
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assert_inspect_evaled(':|')
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assert_inspect_evaled(':^')
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assert_inspect_evaled(':&')
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assert_inspect_evaled(':/')
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assert_inspect_evaled(':%')
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assert_inspect_evaled(':~')
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assert_inspect_evaled(':`')
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assert_inspect_evaled(':[]')
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assert_inspect_evaled(':[]=')
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assert_raise(SyntaxError) {eval ':||'}
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assert_raise(SyntaxError) {eval ':&&'}
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assert_raise(SyntaxError) {eval ':['}
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end
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def test_inspect_dollar
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# 4) :$- always treats next character literally:
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assert_raise(SyntaxError) {eval ':$-'}
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assert_raise(SyntaxError) {eval ":$-\n"}
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assert_raise(SyntaxError) {eval ":$- "}
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assert_raise(SyntaxError) {eval ":$-#"}
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assert_raise(SyntaxError) {eval ':$-('}
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end
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def test_inspect_number
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# 5) Inconsistency between :$0 and :$1? The first one is valid, but the
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# latter isn't.
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assert_inspect_evaled(':$0')
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assert_inspect_evaled(':$1')
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end
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def test_inspect
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valid = %W{$a @a @@a < << <= <=> > >> >= =~ == === * ** + +@ - -@
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| ^ & / % ~ \` [] []= ! != !~ a a? a! a= A A? A! A=}
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valid.each do |sym|
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assert_equal(':' + sym, sym.intern.inspect)
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end
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invalid = %w{$a? $a! $a= @a? @a! @a= @@a? @@a! @@a= =}
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invalid.each do |sym|
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assert_equal(':"' + sym + '"', sym.intern.inspect)
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end
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end
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def test_to_proc
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assert_equal %w(1 2 3), (1..3).map(&:to_s)
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[
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[],
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[1],
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[1, 2],
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[1, [2, 3]],
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].each do |ary|
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ary_id = ary.object_id
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assert_equal ary_id, :object_id.to_proc.call(ary)
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ary_ids = ary.collect{|x| x.object_id }
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assert_equal ary_ids, ary.collect(&:object_id)
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end
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end
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def test_to_proc_yield
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assert_ruby_status([], "#{<<-"begin;"}\n#{<<-"end;"}", timeout: 5.0)
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begin;
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GC.stress = true
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true.tap(&:itself)
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end;
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end
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def test_to_proc_new_proc
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assert_ruby_status([], "#{<<-"begin;"}\n#{<<-"end;"}", timeout: 5.0)
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begin;
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GC.stress = true
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2.times {Proc.new(&:itself)}
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end;
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end
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def test_to_proc_no_method
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assert_separately([], "#{<<-"begin;"}\n#{<<-"end;"}", timeout: 5.0)
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begin;
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bug11566 = '[ruby-core:70980] [Bug #11566]'
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assert_raise(NoMethodError, bug11566) {Proc.new(&:foo).(1)}
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assert_raise(NoMethodError, bug11566) {:foo.to_proc.(1)}
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end;
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end
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def test_to_proc_arg
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assert_separately([], "#{<<-"begin;"}\n#{<<-"end;"}", timeout: 5.0)
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begin;
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def (obj = Object.new).proc(&b) b; end
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assert_same(:itself.to_proc, obj.proc(&:itself))
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end;
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end
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def test_to_proc_lambda?
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assert_predicate(:itself.to_proc, :lambda?)
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end
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def test_to_proc_arity
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assert_equal(-2, :itself.to_proc.arity)
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end
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def test_to_proc_call_with_symbol_proc
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first = 1
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bug11594 = "[ruby-core:71088] [Bug #11594] corrupted the first local variable"
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# symbol which does not have a Proc
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->(&blk) {}.call(&:test_to_proc_call_with_symbol_proc)
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assert_equal(1, first, bug11594)
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end
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class TestToPRocArgWithRefinements; end
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def _test_to_proc_arg_with_refinements_call(&block)
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block.call TestToPRocArgWithRefinements.new
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end
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def _test_to_proc_with_refinements_call(&block)
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block
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end
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using Module.new {
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refine TestToPRocArgWithRefinements do
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def hoge
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:hoge
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end
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end
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}
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def test_to_proc_arg_with_refinements
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assert_equal(:hoge, _test_to_proc_arg_with_refinements_call(&:hoge))
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end
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def test_to_proc_lambda_with_refinements
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assert_predicate(_test_to_proc_with_refinements_call(&:hoge), :lambda?)
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end
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def test_to_proc_arity_with_refinements
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assert_equal(-2, _test_to_proc_with_refinements_call(&:hoge).arity)
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end
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def self._test_to_proc_arg_with_refinements_call(&block)
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block.call TestToPRocArgWithRefinements.new
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end
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_test_to_proc_arg_with_refinements_call(&:hoge)
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using Module.new {
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refine TestToPRocArgWithRefinements do
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def hoge
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:hogehoge
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end
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end
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}
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def test_to_proc_arg_with_refinements_override
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assert_equal(:hogehoge, _test_to_proc_arg_with_refinements_call(&:hoge))
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end
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def test_to_proc_arg_with_refinements_undefined
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assert_raise(NoMethodError) do
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_test_to_proc_arg_with_refinements_call(&:foo)
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end
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end
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private def return_from_proc
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Proc.new { return 1 }.tap(&:call)
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end
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def test_return_from_symbol_proc
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bug12462 = '[ruby-core:75856] [Bug #12462]'
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assert_equal(1, return_from_proc, bug12462)
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end
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def test_to_proc_for_hash_each
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bug11830 = '[ruby-core:72205] [Bug #11830]'
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assert_normal_exit("#{<<-"begin;"}\n#{<<-'end;'}", bug11830)
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begin;
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{}.each(&:destroy)
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end;
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end
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def test_to_proc_iseq
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assert_separately([], "#{<<-"begin;"}\n#{<<~"end;"}", timeout: 5)
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begin;
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bug11845 = '[ruby-core:72381] [Bug #11845]'
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assert_nil(:class.to_proc.source_location, bug11845)
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assert_equal([[:req], [:rest]], :class.to_proc.parameters, bug11845)
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c = Class.new {define_method(:klass, :class.to_proc)}
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m = c.instance_method(:klass)
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assert_nil(m.source_location, bug11845)
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assert_equal([[:req], [:rest]], m.parameters, bug11845)
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end;
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end
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def test_to_proc_binding
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assert_separately([], "#{<<-"begin;"}\n#{<<~"end;"}", timeout: 5)
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begin;
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bug12137 = '[ruby-core:74100] [Bug #12137]'
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assert_raise(ArgumentError, bug12137) {
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:succ.to_proc.binding
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}
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end;
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end
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def test_to_proc_instance_exec
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bug = '[ruby-core:78839] [Bug #13074] should evaluate on the argument'
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assert_equal(2, BasicObject.new.instance_exec(1, &:succ), bug)
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assert_equal(3, BasicObject.new.instance_exec(1, 2, &:+), bug)
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end
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def test_call
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o = Object.new
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def o.foo(x, y); x + y; end
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assert_equal(3, :foo.to_proc.call(o, 1, 2))
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assert_raise(ArgumentError) { :foo.to_proc.call }
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end
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def m_block_given?
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block_given?
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end
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def m2_block_given?(m = nil)
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if m
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[block_given?, m.call(self)]
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else
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block_given?
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end
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end
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def test_block_given_to_proc
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bug8531 = '[Bug #8531]'
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m = :m_block_given?.to_proc
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assert(!m.call(self), "#{bug8531} without block")
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assert(m.call(self) {}, "#{bug8531} with block")
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assert(!m.call(self), "#{bug8531} without block second")
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end
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def test_block_persist_between_calls
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bug8531 = '[Bug #8531]'
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m2 = :m2_block_given?.to_proc
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assert_equal([true, false], m2.call(self, m2) {}, "#{bug8531} nested with block")
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assert_equal([false, false], m2.call(self, m2), "#{bug8531} nested without block")
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end
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def test_block_curry_proc
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assert_separately([], "#{<<-"begin;"}\n#{<<-"end;"}")
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begin;
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b = proc { true }.curry
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assert(b.call, "without block")
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assert(b.call { |o| o.to_s }, "with block")
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assert(b.call(&:to_s), "with sym block")
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end;
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end
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def test_block_curry_lambda
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assert_separately([], "#{<<-"begin;"}\n#{<<-"end;"}")
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begin;
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b = lambda { true }.curry
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assert(b.call, "without block")
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assert(b.call { |o| o.to_s }, "with block")
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assert(b.call(&:to_s), "with sym block")
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end;
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end
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def test_block_method_to_proc
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assert_separately([], "#{<<-"begin;"}\n#{<<-"end;"}")
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begin;
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b = method(:tap).to_proc
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assert(b.call { |o| o.to_s }, "with block")
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assert(b.call(&:to_s), "with sym block")
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end;
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end
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def test_succ
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assert_equal(:fop, :foo.succ)
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end
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def test_cmp
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assert_equal(0, :FoO <=> :FoO)
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assert_equal(-1, :FoO <=> :fOO)
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assert_equal(1, :fOO <=> :FoO)
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assert_nil(:foo <=> "foo")
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end
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def test_casecmp
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assert_equal(0, :FoO.casecmp(:fOO))
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assert_equal(1, :FoO.casecmp(:BaR))
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assert_equal(-1, :baR.casecmp(:FoO))
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assert_nil(:foo.casecmp("foo"))
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assert_nil(:foo.casecmp(Object.new))
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end
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def test_casecmp?
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assert_equal(true, :FoO.casecmp?(:fOO))
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assert_equal(false, :FoO.casecmp?(:BaR))
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assert_equal(false, :baR.casecmp?(:FoO))
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assert_equal(true, :äöü.casecmp?(:ÄÖÜ))
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assert_nil(:foo.casecmp?("foo"))
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assert_nil(:foo.casecmp?(Object.new))
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end
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def test_length
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assert_equal(3, :FoO.length)
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assert_equal(3, :FoO.size)
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end
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def test_empty
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assert_equal(false, :FoO.empty?)
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assert_equal(true, :"".empty?)
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end
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def test_case
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assert_equal(:FOO, :FoO.upcase)
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assert_equal(:foo, :FoO.downcase)
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assert_equal(:Foo, :foo.capitalize)
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assert_equal(:fOo, :FoO.swapcase)
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end
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def test_MATCH # '=~'
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assert_equal(10, :"FeeFieFoo-Fum" =~ /Fum$/)
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assert_equal(nil, "FeeFieFoo-Fum" =~ /FUM$/)
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o = Object.new
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def o.=~(x); x + "bar"; end
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assert_equal("foobar", :"foo" =~ o)
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assert_raise(TypeError) { :"foo" =~ "foo" }
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end
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def test_match_method
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assert_equal("bar", :"foobarbaz".match(/bar/).to_s)
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o = Regexp.new('foo')
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def o.match(x, y, z); x + y + z; end
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assert_equal("foobarbaz", :"foo".match(o, "bar", "baz"))
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x = nil
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:"foo".match(o, "bar", "baz") {|y| x = y }
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assert_equal("foobarbaz", x)
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assert_raise(ArgumentError) { :"foo".match }
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end
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def test_match_p_regexp
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/backref/ =~ 'backref'
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# must match here, but not in a separate method, e.g., assert_send,
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# to check if $~ is affected or not.
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assert_equal(true, "".match?(//))
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assert_equal(true, :abc.match?(/.../))
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assert_equal(true, 'abc'.match?(/b/))
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assert_equal(true, 'abc'.match?(/b/, 1))
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assert_equal(true, 'abc'.match?(/../, 1))
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assert_equal(true, 'abc'.match?(/../, -2))
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assert_equal(false, 'abc'.match?(/../, -4))
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assert_equal(false, 'abc'.match?(/../, 4))
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assert_equal(true, ("\u3042" + '\x').match?(/../, 1))
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assert_equal(true, ''.match?(/\z/))
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assert_equal(true, 'abc'.match?(/\z/))
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assert_equal(true, 'Ruby'.match?(/R.../))
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assert_equal(false, 'Ruby'.match?(/R.../, 1))
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assert_equal(false, 'Ruby'.match?(/P.../))
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assert_equal('backref', $&)
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end
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def test_match_p_string
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/backref/ =~ 'backref'
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# must match here, but not in a separate method, e.g., assert_send,
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# to check if $~ is affected or not.
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assert_equal(true, "".match?(''))
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assert_equal(true, :abc.match?('...'))
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assert_equal(true, 'abc'.match?('b'))
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assert_equal(true, 'abc'.match?('b', 1))
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assert_equal(true, 'abc'.match?('..', 1))
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assert_equal(true, 'abc'.match?('..', -2))
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assert_equal(false, 'abc'.match?('..', -4))
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assert_equal(false, 'abc'.match?('..', 4))
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assert_equal(true, ("\u3042" + '\x').match?('..', 1))
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assert_equal(true, ''.match?('\z'))
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assert_equal(true, 'abc'.match?('\z'))
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assert_equal(true, 'Ruby'.match?('R...'))
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assert_equal(false, 'Ruby'.match?('R...', 1))
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assert_equal(false, 'Ruby'.match?('P...'))
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assert_equal('backref', $&)
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end
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def test_symbol_popped
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assert_nothing_raised { eval('a = 1; :"#{ a }"; 1') }
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end
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def test_ascii_incomat_inspect
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[Encoding::UTF_16LE, Encoding::UTF_16BE,
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Encoding::UTF_32LE, Encoding::UTF_32BE].each do |e|
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assert_equal(':"abc"', "abc".encode(e).to_sym.inspect)
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assert_equal(':"\\u3042\\u3044\\u3046"', "\u3042\u3044\u3046".encode(e).to_sym.inspect)
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end
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end
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def test_symbol_encoding
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assert_equal(Encoding::US_ASCII, "$-A".force_encoding("iso-8859-15").intern.encoding)
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assert_equal(Encoding::US_ASCII, "foobar~!".force_encoding("iso-8859-15").intern.encoding)
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assert_equal(Encoding::UTF_8, "\u{2192}".intern.encoding)
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assert_raise_with_message(EncodingError, /\\xb0/i) {"\xb0a".force_encoding("utf-8").intern}
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end
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def test_singleton_method
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assert_raise(TypeError) { a = :foo; def a.foo; end }
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end
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SymbolsForEval = [
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:foo,
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"dynsym_#{Random.rand(10000)}_#{Time.now}".to_sym
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]
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def test_instance_eval
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bug11086 = '[ruby-core:68961] [Bug #11086]'
|
|
SymbolsForEval.each do |sym|
|
|
assert_nothing_raised(TypeError, sym, bug11086) {
|
|
sym.instance_eval {}
|
|
}
|
|
assert_raise(TypeError, sym, bug11086) {
|
|
sym.instance_eval {def foo; end}
|
|
}
|
|
end
|
|
end
|
|
|
|
def test_instance_exec
|
|
bug11086 = '[ruby-core:68961] [Bug #11086]'
|
|
SymbolsForEval.each do |sym|
|
|
assert_nothing_raised(TypeError, sym, bug11086) {
|
|
sym.instance_exec {}
|
|
}
|
|
assert_raise(TypeError, sym, bug11086) {
|
|
sym.instance_exec {def foo; end}
|
|
}
|
|
end
|
|
end
|
|
|
|
def test_frozen_symbol
|
|
assert_equal(true, :foo.frozen?)
|
|
assert_equal(true, :each.frozen?)
|
|
assert_equal(true, :+.frozen?)
|
|
assert_equal(true, "foo#{Time.now.to_i}".to_sym.frozen?)
|
|
assert_equal(true, :foo.to_sym.frozen?)
|
|
end
|
|
|
|
def test_symbol_gc_1
|
|
assert_normal_exit('".".intern;GC.start(immediate_sweep:false);eval %[GC.start;".".intern]',
|
|
'',
|
|
child_env: '--disable-gems')
|
|
assert_normal_exit('".".intern;GC.start(immediate_sweep:false);eval %[GC.start;:"."]',
|
|
'',
|
|
child_env: '--disable-gems')
|
|
assert_normal_exit('".".intern;GC.start(immediate_sweep:false);eval %[GC.start;%i"."]',
|
|
'',
|
|
child_env: '--disable-gems')
|
|
assert_normal_exit('tap{".".intern};GC.start(immediate_sweep:false);' +
|
|
'eval %[syms=Symbol.all_symbols;GC.start;syms.each(&:to_sym)]',
|
|
'',
|
|
child_env: '--disable-gems')
|
|
end
|
|
|
|
def test_dynamic_attrset_id
|
|
bug10259 = '[ruby-dev:48559] [Bug #10259]'
|
|
class << (obj = Object.new)
|
|
attr_writer :unagi
|
|
end
|
|
assert_nothing_raised(NoMethodError, bug10259) {obj.send("unagi=".intern, 1)}
|
|
end
|
|
|
|
def test_symbol_fstr_memory_leak
|
|
bug10686 = '[ruby-core:67268] [Bug #10686]'
|
|
assert_no_memory_leak([], "#{<<~"begin;"}\n#{<<~'else;'}", "#{<<~'end;'}", bug10686, limit: 1.71, rss: true, timeout: 20)
|
|
begin;
|
|
n = 100_000
|
|
n.times { |i| i.to_s.to_sym }
|
|
else;
|
|
(2 * n).times { |i| (i + n).to_s.to_sym }
|
|
end;
|
|
end
|
|
|
|
def test_hash_redefinition
|
|
assert_separately([], "#{<<-"begin;"}\n#{<<-'end;'}")
|
|
begin;
|
|
bug11035 = '[ruby-core:68767] [Bug #11035]'
|
|
class Symbol
|
|
def hash
|
|
raise
|
|
end
|
|
end
|
|
|
|
h = {}
|
|
assert_nothing_raised(RuntimeError, bug11035) {
|
|
h[:foo] = 1
|
|
}
|
|
assert_nothing_raised(RuntimeError, bug11035) {
|
|
h['bar'.to_sym] = 2
|
|
}
|
|
end;
|
|
end
|
|
|
|
def test_hash_nondeterministic
|
|
ruby = EnvUtil.rubybin
|
|
assert_not_equal :foo.hash, `#{ruby} -e 'puts :foo.hash'`.to_i,
|
|
'[ruby-core:80430] [Bug #13376]'
|
|
|
|
sym = "dynsym_#{Random.rand(10000)}_#{Time.now}"
|
|
assert_not_equal sym.to_sym.hash,
|
|
`#{ruby} -e 'puts #{sym.inspect}.to_sym.hash'`.to_i
|
|
end
|
|
|
|
def test_eq_can_be_redefined
|
|
assert_in_out_err([], <<-RUBY, ["foo"], [])
|
|
class Symbol
|
|
remove_method :==
|
|
def ==(obj)
|
|
"foo"
|
|
end
|
|
end
|
|
|
|
puts :a == :a
|
|
RUBY
|
|
end
|
|
|
|
def test_start_with?
|
|
assert_equal(true, :hello.start_with?("hel"))
|
|
assert_equal(false, :hello.start_with?("el"))
|
|
assert_equal(true, :hello.start_with?("el", "he"))
|
|
|
|
bug5536 = '[ruby-core:40623]'
|
|
assert_raise(TypeError, bug5536) {:str.start_with? :not_convertible_to_string}
|
|
|
|
assert_equal(true, :hello.start_with?(/hel/))
|
|
assert_equal("hel", $&)
|
|
assert_equal(false, :hello.start_with?(/el/))
|
|
assert_nil($&)
|
|
end
|
|
|
|
def test_end_with?
|
|
assert_equal(true, :hello.end_with?("llo"))
|
|
assert_equal(false, :hello.end_with?("ll"))
|
|
assert_equal(true, :hello.end_with?("el", "lo"))
|
|
|
|
bug5536 = '[ruby-core:40623]'
|
|
assert_raise(TypeError, bug5536) {:str.end_with? :not_convertible_to_string}
|
|
end
|
|
end
|