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-rw-r--r--test/ruby/test_eval.rb655
1 files changed, 655 insertions, 0 deletions
diff --git a/test/ruby/test_eval.rb b/test/ruby/test_eval.rb
new file mode 100644
index 0000000000..d2145bec5d
--- /dev/null
+++ b/test/ruby/test_eval.rb
@@ -0,0 +1,655 @@
+# frozen_string_literal: false
+require 'test/unit'
+
+class TestEval < Test::Unit::TestCase
+
+ @ivar = 12
+ @@cvar = 13
+ $gvar__eval = 14
+ Const = 15
+
+ def ruby(*args)
+ args = ['-e', '$>.write($<.read)'] if args.empty?
+ ruby = EnvUtil.rubybin
+ f = IO.popen([ruby] + args, 'r+')
+ yield(f)
+ ensure
+ f.close unless !f || f.closed?
+ end
+
+ def test_eval_basic
+ assert_equal nil, eval("nil")
+ assert_equal true, eval("true")
+ assert_equal false, eval("false")
+ assert_equal self, eval("self")
+ assert_equal 1, eval("1")
+ assert_equal :sym, eval(":sym")
+
+ assert_equal 11, eval("11")
+ @ivar = 12
+ assert_equal 12, eval("@ivar")
+ assert_equal 13, eval("@@cvar")
+ assert_equal 14, eval("$gvar__eval")
+ assert_equal 15, eval("Const")
+
+ assert_equal 16, eval("7 + 9")
+ assert_equal 17, eval("17.to_i")
+ assert_equal "18", eval(%q("18"))
+ assert_equal "19", eval(%q("1#{9}"))
+
+ 1.times {
+ assert_equal 12, eval("@ivar")
+ assert_equal 13, eval("@@cvar")
+ assert_equal 14, eval("$gvar__eval")
+ assert_equal 15, eval("Const")
+ }
+ end
+
+ def test_eval_binding_basic
+ assert_equal nil, eval("nil", binding())
+ assert_equal true, eval("true", binding())
+ assert_equal false, eval("false", binding())
+ assert_equal self, eval("self", binding())
+ assert_equal 1, eval("1", binding())
+ assert_equal :sym, eval(":sym", binding())
+
+ assert_equal 11, eval("11", binding())
+ @ivar = 12
+ assert_equal 12, eval("@ivar", binding())
+ assert_equal 13, eval("@@cvar", binding())
+ assert_equal 14, eval("$gvar__eval", binding())
+ assert_equal 15, eval("Const", binding())
+
+ assert_equal 16, eval("7 + 9", binding())
+ assert_equal 17, eval("17.to_i", binding())
+ assert_equal "18", eval(%q("18"), binding())
+ assert_equal "19", eval(%q("1#{9}"), binding())
+
+ 1.times {
+ assert_equal 12, eval("@ivar")
+ assert_equal 13, eval("@@cvar")
+ assert_equal 14, eval("$gvar__eval")
+ assert_equal 15, eval("Const")
+ }
+ end
+
+ def test_module_eval_string_basic
+ c = self.class
+ assert_equal nil, c.module_eval("nil")
+ assert_equal true, c.module_eval("true")
+ assert_equal false, c.module_eval("false")
+ assert_equal c, c.module_eval("self")
+ assert_equal :sym, c.module_eval(":sym")
+ assert_equal 11, c.module_eval("11")
+ @ivar = 12
+ assert_equal 12, c.module_eval("@ivar")
+ assert_equal 13, c.module_eval("@@cvar")
+ assert_equal 14, c.module_eval("$gvar__eval")
+ assert_equal 15, c.module_eval("Const")
+ assert_equal 16, c.module_eval("7 + 9")
+ assert_equal 17, c.module_eval("17.to_i")
+ assert_equal "18", c.module_eval(%q("18"))
+ assert_equal "19", c.module_eval(%q("1#{9}"))
+
+ @ivar = 12
+ 1.times {
+ assert_equal 12, c.module_eval("@ivar")
+ assert_equal 13, c.module_eval("@@cvar")
+ assert_equal 14, c.module_eval("$gvar__eval")
+ assert_equal 15, c.module_eval("Const")
+ }
+ end
+
+ def test_module_eval_block_basic
+ c = self.class
+ assert_equal nil, c.module_eval { nil }
+ assert_equal true, c.module_eval { true }
+ assert_equal false, c.module_eval { false }
+ assert_equal c, c.module_eval { self }
+ assert_equal :sym, c.module_eval { :sym }
+ assert_equal 11, c.module_eval { 11 }
+ @ivar = 12
+ assert_equal 12, c.module_eval { @ivar }
+ assert_equal 13, c.module_eval { @@cvar }
+ assert_equal 14, c.module_eval { $gvar__eval }
+ assert_equal 15, c.module_eval { Const }
+ assert_equal 16, c.module_eval { 7 + 9 }
+ assert_equal 17, c.module_eval { "17".to_i }
+ assert_equal "18", c.module_eval { "18" }
+ assert_equal "19", c.module_eval { "1#{9}" }
+
+ @ivar = 12
+ 1.times {
+ assert_equal 12, c.module_eval { @ivar }
+ assert_equal 13, c.module_eval { @@cvar }
+ assert_equal 14, c.module_eval { $gvar__eval }
+ assert_equal 15, c.module_eval { Const }
+ }
+ end
+
+ def test_module_eval_block_symbol
+ assert_equal "Math", Math.module_eval(&:to_s)
+ end
+
+ def forall_TYPE
+ objects = [Object.new, [], nil, true, false] # TODO: check
+ objects.each do |obj|
+ obj.instance_variable_set :@ivar, 12 unless obj.frozen?
+ yield obj
+ end
+ end
+
+ def test_instance_eval_string_basic
+ forall_TYPE do |o|
+ assert_equal nil, o.instance_eval("nil")
+ assert_equal true, o.instance_eval("true")
+ assert_equal false, o.instance_eval("false")
+ assert_equal o, o.instance_eval("self")
+ assert_equal 1, o.instance_eval("1")
+ assert_equal :sym, o.instance_eval(":sym")
+
+ assert_equal 11, o.instance_eval("11")
+ assert_equal 12, o.instance_eval("@ivar") unless o.frozen?
+ assert_equal 13, o.instance_eval("@@cvar")
+ assert_equal 14, o.instance_eval("$gvar__eval")
+ assert_equal 15, o.instance_eval("Const")
+ assert_equal 16, o.instance_eval("7 + 9")
+ assert_equal 17, o.instance_eval("17.to_i")
+ assert_equal "18", o.instance_eval(%q("18"))
+ assert_equal "19", o.instance_eval(%q("1#{9}"))
+
+ 1.times {
+ assert_equal 12, o.instance_eval("@ivar") unless o.frozen?
+ assert_equal 13, o.instance_eval("@@cvar")
+ assert_equal 14, o.instance_eval("$gvar__eval")
+ assert_equal 15, o.instance_eval("Const")
+ }
+ end
+ end
+
+ def test_instance_eval_block_basic
+ forall_TYPE do |o|
+ assert_equal nil, o.instance_eval { nil }
+ assert_equal true, o.instance_eval { true }
+ assert_equal false, o.instance_eval { false }
+ assert_equal o, o.instance_eval { self }
+ assert_equal 1, o.instance_eval { 1 }
+ assert_equal :sym, o.instance_eval { :sym }
+
+ assert_equal 11, o.instance_eval { 11 }
+ assert_equal 12, o.instance_eval { @ivar } unless o.frozen?
+ assert_equal 13, o.instance_eval { @@cvar }
+ assert_equal 14, o.instance_eval { $gvar__eval }
+ assert_equal 15, o.instance_eval { Const }
+ assert_equal 16, o.instance_eval { 7 + 9 }
+ assert_equal 17, o.instance_eval { 17.to_i }
+ assert_equal "18", o.instance_eval { "18" }
+ assert_equal "19", o.instance_eval { "1#{9}" }
+
+ 1.times {
+ assert_equal 12, o.instance_eval { @ivar } unless o.frozen?
+ assert_equal 13, o.instance_eval { @@cvar }
+ assert_equal 14, o.instance_eval { $gvar__eval }
+ assert_equal 15, o.instance_eval { Const }
+ }
+ end
+ end
+
+ def test_instance_eval_block_self
+ # instance_eval(&block)'s self must not be sticky (jruby/jruby#2060)
+ pr = proc { self }
+ assert_equal self, pr.call
+ o = Object.new
+ assert_equal o, o.instance_eval(&pr)
+ assert_equal self, pr.call
+ end
+
+ def test_instance_eval_block_symbol
+ forall_TYPE do |o|
+ assert_equal o.to_s, o.instance_eval(&:to_s)
+ end
+ end
+
+ def test_instance_eval_cvar
+ [Object.new, [], 7, :sym, true, false, nil].each do |obj|
+ assert_equal(13, obj.instance_eval("@@cvar"))
+ assert_equal(13, obj.instance_eval{@@cvar})
+ # assert_raise(NameError){obj.instance_eval("@@cvar")}
+ # assert_raise(NameError){obj.instance_eval{@@cvar}}
+ end
+ end
+
+ def test_instance_exec_cvar
+ [Object.new, [], 7, :sym, true, false, nil].each do |obj|
+ assert_equal(13, obj.instance_exec{@@cvar})
+ end
+ end
+
+ def test_instance_eval_method
+ bug2788 = '[ruby-core:28324]'
+ [Object.new, [], nil, true, false].each do |o|
+ assert_nothing_raised(TypeError, "#{bug2788} (#{o.inspect})") do
+ o.instance_eval {
+ def defd_using_instance_eval() :ok end
+ }
+ end
+ assert_equal(:ok, o.defd_using_instance_eval)
+ class << o
+ remove_method :defd_using_instance_eval
+ end
+ end
+ end
+
+ def test_instance_eval_on_argf_singleton_class
+ bug8188 = '[ruby-core:53839] [Bug #8188]'
+ assert_warning('', bug8188) do
+ ARGF.singleton_class.instance_eval{}
+ end
+ end
+
+ class Foo
+ Bar = 2
+ end
+
+ def test_instance_eval_const
+ bar = nil
+ assert_nothing_raised(NameError) do
+ bar = Foo.new.instance_eval("Bar")
+ end
+ assert_equal(2, bar)
+ end
+
+ def test_instance_exec_block_basic
+ forall_TYPE do |o|
+ assert_equal nil, o.instance_exec { nil }
+ assert_equal true, o.instance_exec { true }
+ assert_equal false, o.instance_exec { false }
+ assert_equal o, o.instance_exec { self }
+ assert_equal 1, o.instance_exec { 1 }
+ assert_equal :sym, o.instance_exec { :sym }
+
+ assert_equal 11, o.instance_exec { 11 }
+ assert_equal 12, o.instance_exec { @ivar } unless o.frozen?
+ assert_equal 13, o.instance_exec { @@cvar }
+ assert_equal 14, o.instance_exec { $gvar__eval }
+ assert_equal 15, o.instance_exec { Const }
+ assert_equal 16, o.instance_exec { 7 + 9 }
+ assert_equal 17, o.instance_exec { 17.to_i }
+ assert_equal "18", o.instance_exec { "18" }
+ assert_equal "19", o.instance_exec { "1#{9}" }
+
+ 1.times {
+ assert_equal 12, o.instance_exec { @ivar } unless o.frozen?
+ assert_equal 13, o.instance_exec { @@cvar }
+ assert_equal 14, o.instance_exec { $gvar__eval }
+ assert_equal 15, o.instance_exec { Const }
+ }
+ end
+ end
+
+ def test_instance_exec_method_definition
+ klass = Class.new
+ o = klass.new
+
+ o.instance_exec do
+ def foo
+ :foo_result
+ end
+ end
+
+ assert_respond_to o, :foo
+ refute_respond_to klass, :foo
+ refute_respond_to klass.new, :foo
+
+ assert_equal :foo_result, o.foo
+ end
+
+ def test_instance_exec_eval_method_definition
+ klass = Class.new
+ o = klass.new
+
+ o.instance_exec do
+ eval %{
+ def foo
+ :foo_result
+ end
+ }
+ end
+
+ assert_respond_to o, :foo
+ refute_respond_to klass, :foo
+ refute_respond_to klass.new, :foo
+
+ assert_equal :foo_result, o.foo
+ end
+
+ #
+ # From ruby/test/ruby/test_eval.rb
+ #
+
+ def make_test_binding
+ local1 = local1 = "local1"
+ lambda {
+ local2 = local2 = "local2"
+ return binding
+ }.call
+ end
+
+ def test_eval_orig
+ assert_nil(eval(""))
+ bad=false
+ eval 'while false; bad = true; print "foo\n" end'
+ assert(!bad)
+
+ assert(eval('Object'))
+ assert(eval('true'))
+ assert(!eval('nil'))
+ assert(!eval('false'))
+
+ $foo = 'assert(true)'
+ begin
+ eval $foo
+ rescue
+ assert(false)
+ end
+
+ assert_equal('assert(true)', eval("$foo"))
+ assert_equal(true, eval("true"))
+ i = i = 5
+ assert(eval("i == 5"))
+ assert_equal(5, eval("i"))
+ assert(eval("defined? i"))
+
+ x = make_test_binding
+ assert_equal("local1", eval("local1", x)) # normal local var
+ assert_equal("local2", eval("local2", x)) # nested local var
+ bad = true
+ begin
+ p eval("local1")
+ rescue NameError # must raise error
+ bad = false
+ end
+ assert(!bad)
+
+ # !! use class_eval to avoid nested definition
+ x = self.class.class_eval %q(
+ module EvTest
+ EVTEST1 = 25
+ evtest2 = 125
+ evtest2 = evtest2
+ binding
+ end
+ )
+ assert_equal(25, eval("EVTEST1", x)) # constant in module
+ assert_equal(125, eval("evtest2", x)) # local var in module
+ bad = true
+ begin
+ eval("EVTEST1")
+ rescue NameError # must raise error
+ bad = false
+ end
+ assert(!bad)
+
+ x = binding
+ eval "i = 1", x
+ assert_equal(1, eval("i", x))
+ x = proc{binding}.call
+ eval "i = 22", x
+ assert_equal(22, eval("i", x))
+ t = []
+ x = proc{binding}.call
+ eval "(0..9).each{|i5| t[i5] = proc{i5*2}}", x
+ assert_equal(8, t[4].call)
+ x = proc{binding}.call
+ eval "for i6 in 1..1; j6=i6; end", x
+ assert(eval("defined? i6", x))
+ assert(eval("defined? j6", x))
+
+ proc {
+ p = binding
+ eval "foo11 = 1", p
+ foo22 = 5
+ proc{foo11=22;foo11}.call
+ proc{foo22=55}.call
+ # assert_equal(eval("foo11"), eval("foo11", p))
+ # assert_equal(1, eval("foo11"))
+ assert_equal(eval("foo22"), eval("foo22", p))
+ assert_equal(55, eval("foo22"))
+ assert_equal(55, foo22)
+ }.call
+
+ self.class.class_eval do
+ remove_const :EvTest
+ end
+ end
+
+ def test_nil_instance_eval_cvar
+ def nil.test_binding
+ binding
+ end
+ bb = eval("nil.instance_eval \"binding\"", nil.test_binding)
+ assert_raise(NameError, "[ruby-dev:24103]") { eval("@@a", bb) }
+ class << nil
+ remove_method :test_binding
+ end
+ end
+
+ def test_fixnum_instance_eval_cvar
+ assert_raise(NameError, "[ruby-dev:24213]") { 1.instance_eval "@@a" }
+ end
+
+ def test_cvar_scope_with_instance_eval
+ # TODO: check
+ Integer.class_eval "@@test_cvar_scope_with_instance_eval = 1" # depends on [ruby-dev:24229]
+ @@test_cvar_scope_with_instance_eval = 4
+ assert_equal(4, 1.instance_eval("@@test_cvar_scope_with_instance_eval"), "[ruby-dev:24223]")
+ Integer.__send__(:remove_class_variable, :@@test_cvar_scope_with_instance_eval)
+ end
+
+ def test_eval_and_define_method
+ assert_nothing_raised("[ruby-dev:24228]") {
+ def temporally_method_for_test_eval_and_define_method(&block)
+ lambda {
+ class << Object.new; self end.send(:define_method, :zzz, &block)
+ }
+ end
+ v = eval("temporally_method_for_test_eval_and_define_method {}")
+ {}[0] = {}
+ v.call
+ }
+ end
+
+ def test_define_method_block
+ cc = Class.new do
+ define_method(:foo) {|&block|
+ block.call if block
+ }
+ end
+
+ c = cc.new
+ x = "ng"
+ c.foo() {x = "ok"}
+ assert_equal("ok", x)
+ end
+
+ def test_define_method_toplevel
+ feature6609 = '[ruby-core:45715]'
+ main = eval("self", TOPLEVEL_BINDING)
+ assert_nothing_raised(NoMethodError, feature6609) do
+ main.instance_eval do
+ define_method("feature6609_block") {feature6609}
+ end
+ end
+ assert_equal(feature6609, feature6609_block)
+
+ assert_nothing_raised(NoMethodError, feature6609) do
+ main.instance_eval do
+ define_method("feature6609_method", Object.instance_method(:feature6609_block))
+ end
+ end
+ assert_equal(feature6609, feature6609_method)
+ ensure
+ Object.undef_method(:feature6609_block) rescue nil
+ Object.undef_method(:feature6609_method) rescue nil
+ end
+
+ def test_eval_using_integer_as_binding
+ assert_raise(TypeError) { eval("", 1) }
+ end
+
+ def test_eval_raise
+ assert_raise(RuntimeError) { eval("raise ''") }
+ end
+
+ def test_eval_with_toplevel_binding # [ruby-dev:37142]
+ ruby("-e", "x = 0; eval('p x', TOPLEVEL_BINDING)") do |f|
+ f.close_write
+ assert_equal("0", f.read.chomp)
+ end
+ end
+
+ def test_eval_ascii_incompatible
+ assert_raise(ArgumentError) {eval("__ENCODING__".encode("utf-16be"))}
+ assert_raise(ArgumentError) {eval("__ENCODING__".encode("utf-16le"))}
+ assert_raise(ArgumentError) {eval("__ENCODING__".encode("utf-32be"))}
+ assert_raise(ArgumentError) {eval("__ENCODING__".encode("utf-32le"))}
+ end
+
+ def test_instance_eval_method_proc
+ bug3860 = Class.new do
+ def initialize(a);
+ @a=a
+ end
+ def get(*args)
+ @a
+ end
+ end
+ foo = bug3860.new 1
+ foo_pr = foo.method(:get).to_proc
+ result = foo.instance_eval(&foo_pr)
+ assert_equal(1, result, 'Bug #3786, Bug #3860, [ruby-core:32501]')
+ end
+
+ def test_file_encoding
+ fname = "\u{3042}".encode("euc-jp")
+ assert_equal(fname, eval("__FILE__", nil, fname, 1))
+ end
+
+ def test_eval_invalid_block_exit_bug_20597
+ assert_raise(SyntaxError){eval("break if false")}
+ assert_raise(SyntaxError){eval("next if false")}
+ assert_raise(SyntaxError){eval("redo if false")}
+ end
+
+ def test_eval_location_fstring
+ o = Object.new
+ o.instance_eval "def foo() end", "generated code"
+ o.instance_eval "def bar() end", "generated code"
+
+ a, b = o.method(:foo).source_location[0],
+ o.method(:bar).source_location[0]
+
+ assert_same a, b
+ end
+
+ def test_eval_location_binding
+ assert_equal(["(eval at #{__FILE__}:#{__LINE__})", 1], eval("[__FILE__, __LINE__]", nil))
+ assert_equal(["(eval at #{__FILE__}:#{__LINE__})", 1], eval("[__FILE__, __LINE__]", binding))
+ assert_equal(['foo', 1], eval("[__FILE__, __LINE__]", nil, 'foo'))
+ assert_equal(['foo', 1], eval("[__FILE__, __LINE__]", binding, 'foo'))
+ assert_equal(['foo', 2], eval("[__FILE__, __LINE__]", nil, 'foo', 2))
+ assert_equal(['foo', 2], eval("[__FILE__, __LINE__]", binding, 'foo', 2))
+ end
+
+ def test_fstring_instance_eval
+ bug = "[ruby-core:78116] [Bug #12930]".freeze
+ assert_same bug, (bug.instance_eval {self})
+ assert_raise(FrozenError) {
+ bug.instance_eval {@ivar = true}
+ }
+ end
+
+ def test_gced_binding_block
+ assert_normal_exit %q{
+ def m
+ binding
+ end
+ GC.stress = true
+ b = nil
+ tap do
+ b = m {}
+ end
+ 0.times.to_a
+ b.eval('yield')
+ }, '[Bug #10368]'
+ end
+
+ def test_gced_eval_location
+ Dir.mktmpdir do |d|
+ File.write("#{d}/2.rb", "")
+ File.write("#{d}/1.rb", "require_relative '2'\n""__FILE__\n")
+ file = "1.rb"
+ path = File.expand_path(file, d)
+ assert_equal(path, eval(File.read(path), nil, File.expand_path(file, d)))
+ assert_equal(path, eval(File.read(path), nil, File.expand_path(file, d)))
+ end
+ end
+
+ def orphan_proc
+ proc {eval("return :ng")}
+ end
+
+ def orphan_lambda
+ lambda {eval("return :ok")}
+ end
+
+ def test_return_in_eval_proc
+ x = orphan_proc
+ assert_raise(LocalJumpError) {x.call}
+ end
+
+ def test_return_in_eval_lambda
+ x = orphan_lambda
+ assert_equal(:ok, x.call)
+ end
+
+ def test_syntax_error_no_memory_leak
+ assert_no_memory_leak([], "#{<<~'begin;'}", "#{<<~'end;'}", rss: true)
+ begin;
+ 100_000.times do
+ eval("/[/=~s")
+ rescue SyntaxError
+ else
+ raise "Expected SyntaxError to be raised"
+ end
+ end;
+
+ assert_no_memory_leak([], "#{<<~'begin;'}", "#{<<~'end;'}", rss: true)
+ begin;
+ a = 1
+
+ 100_000.times do
+ eval("if a in [0, 0] | [0, a]; end")
+ rescue SyntaxError
+ else
+ raise "Expected SyntaxError to be raised"
+ end
+ end;
+ end
+
+ def test_outer_local_variable_under_gc_compact_stress
+ omit "compaction is not supported on this platform" unless GC.respond_to?(:compact)
+ omit "compaction is not supported on s390x" if /s390x/ =~ RUBY_PLATFORM
+
+ assert_separately([], <<~RUBY)
+ o = Object.new
+ def o.m = 1
+
+ GC.verify_compaction_references(expand_heap: true, toward: :empty)
+
+ EnvUtil.under_gc_compact_stress do
+ assert_equal(1, eval("o.m"))
+ end
+ RUBY
+ end
+end
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