mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
2881a6d412
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63178 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
517 lines
14 KiB
Ruby
517 lines
14 KiB
Ruby
# frozen_string_literal: false
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require 'test/unit'
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class TestEval < Test::Unit::TestCase
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@ivar = 12
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@@cvar = 13
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$gvar__eval = 14
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Const = 15
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def ruby(*args)
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args = ['-e', '$>.write($<.read)'] if args.empty?
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ruby = EnvUtil.rubybin
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f = IO.popen([ruby] + args, 'r+')
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yield(f)
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ensure
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f.close unless !f || f.closed?
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end
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def test_eval_basic
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assert_equal nil, eval("nil")
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assert_equal true, eval("true")
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assert_equal false, eval("false")
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assert_equal self, eval("self")
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assert_equal 1, eval("1")
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assert_equal :sym, eval(":sym")
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assert_equal 11, eval("11")
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@ivar = 12
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assert_equal 12, eval("@ivar")
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assert_equal 13, eval("@@cvar")
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assert_equal 14, eval("$gvar__eval")
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assert_equal 15, eval("Const")
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assert_equal 16, eval("7 + 9")
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assert_equal 17, eval("17.to_i")
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assert_equal "18", eval(%q("18"))
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assert_equal "19", eval(%q("1#{9}"))
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1.times {
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assert_equal 12, eval("@ivar")
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assert_equal 13, eval("@@cvar")
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assert_equal 14, eval("$gvar__eval")
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assert_equal 15, eval("Const")
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}
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end
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def test_eval_binding_basic
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assert_equal nil, eval("nil", binding())
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assert_equal true, eval("true", binding())
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assert_equal false, eval("false", binding())
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assert_equal self, eval("self", binding())
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assert_equal 1, eval("1", binding())
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assert_equal :sym, eval(":sym", binding())
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assert_equal 11, eval("11", binding())
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@ivar = 12
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assert_equal 12, eval("@ivar", binding())
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assert_equal 13, eval("@@cvar", binding())
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assert_equal 14, eval("$gvar__eval", binding())
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assert_equal 15, eval("Const", binding())
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assert_equal 16, eval("7 + 9", binding())
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assert_equal 17, eval("17.to_i", binding())
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assert_equal "18", eval(%q("18"), binding())
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assert_equal "19", eval(%q("1#{9}"), binding())
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1.times {
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assert_equal 12, eval("@ivar")
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assert_equal 13, eval("@@cvar")
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assert_equal 14, eval("$gvar__eval")
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assert_equal 15, eval("Const")
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}
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end
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def test_module_eval_string_basic
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c = self.class
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assert_equal nil, c.module_eval("nil")
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assert_equal true, c.module_eval("true")
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assert_equal false, c.module_eval("false")
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assert_equal c, c.module_eval("self")
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assert_equal :sym, c.module_eval(":sym")
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assert_equal 11, c.module_eval("11")
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@ivar = 12
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assert_equal 12, c.module_eval("@ivar")
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assert_equal 13, c.module_eval("@@cvar")
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assert_equal 14, c.module_eval("$gvar__eval")
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assert_equal 15, c.module_eval("Const")
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assert_equal 16, c.module_eval("7 + 9")
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assert_equal 17, c.module_eval("17.to_i")
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assert_equal "18", c.module_eval(%q("18"))
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assert_equal "19", c.module_eval(%q("1#{9}"))
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@ivar = 12
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1.times {
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assert_equal 12, c.module_eval("@ivar")
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assert_equal 13, c.module_eval("@@cvar")
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assert_equal 14, c.module_eval("$gvar__eval")
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assert_equal 15, c.module_eval("Const")
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}
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end
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def test_module_eval_block_basic
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c = self.class
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assert_equal nil, c.module_eval { nil }
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assert_equal true, c.module_eval { true }
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assert_equal false, c.module_eval { false }
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assert_equal c, c.module_eval { self }
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assert_equal :sym, c.module_eval { :sym }
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assert_equal 11, c.module_eval { 11 }
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@ivar = 12
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assert_equal 12, c.module_eval { @ivar }
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assert_equal 13, c.module_eval { @@cvar }
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assert_equal 14, c.module_eval { $gvar__eval }
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assert_equal 15, c.module_eval { Const }
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assert_equal 16, c.module_eval { 7 + 9 }
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assert_equal 17, c.module_eval { "17".to_i }
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assert_equal "18", c.module_eval { "18" }
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assert_equal "19", c.module_eval { "1#{9}" }
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@ivar = 12
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1.times {
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assert_equal 12, c.module_eval { @ivar }
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assert_equal 13, c.module_eval { @@cvar }
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assert_equal 14, c.module_eval { $gvar__eval }
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assert_equal 15, c.module_eval { Const }
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}
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end
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def test_module_eval_block_symbol
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assert_equal "Math", Math.module_eval(&:to_s)
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end
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def forall_TYPE
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objects = [Object.new, [], nil, true, false] # TODO: check
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objects.each do |obj|
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obj.instance_variable_set :@ivar, 12 unless obj.frozen?
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yield obj
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end
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end
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def test_instance_eval_string_basic
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forall_TYPE do |o|
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assert_equal nil, o.instance_eval("nil")
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assert_equal true, o.instance_eval("true")
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assert_equal false, o.instance_eval("false")
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assert_equal o, o.instance_eval("self")
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assert_equal 1, o.instance_eval("1")
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assert_equal :sym, o.instance_eval(":sym")
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assert_equal 11, o.instance_eval("11")
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assert_equal 12, o.instance_eval("@ivar") unless o.frozen?
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assert_equal 13, o.instance_eval("@@cvar")
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assert_equal 14, o.instance_eval("$gvar__eval")
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assert_equal 15, o.instance_eval("Const")
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assert_equal 16, o.instance_eval("7 + 9")
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assert_equal 17, o.instance_eval("17.to_i")
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assert_equal "18", o.instance_eval(%q("18"))
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assert_equal "19", o.instance_eval(%q("1#{9}"))
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1.times {
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assert_equal 12, o.instance_eval("@ivar") unless o.frozen?
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assert_equal 13, o.instance_eval("@@cvar")
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assert_equal 14, o.instance_eval("$gvar__eval")
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assert_equal 15, o.instance_eval("Const")
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}
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end
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end
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def test_instance_eval_block_basic
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forall_TYPE do |o|
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assert_equal nil, o.instance_eval { nil }
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assert_equal true, o.instance_eval { true }
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assert_equal false, o.instance_eval { false }
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assert_equal o, o.instance_eval { self }
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assert_equal 1, o.instance_eval { 1 }
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assert_equal :sym, o.instance_eval { :sym }
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assert_equal 11, o.instance_eval { 11 }
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assert_equal 12, o.instance_eval { @ivar } unless o.frozen?
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assert_equal 13, o.instance_eval { @@cvar }
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assert_equal 14, o.instance_eval { $gvar__eval }
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assert_equal 15, o.instance_eval { Const }
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assert_equal 16, o.instance_eval { 7 + 9 }
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assert_equal 17, o.instance_eval { 17.to_i }
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assert_equal "18", o.instance_eval { "18" }
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assert_equal "19", o.instance_eval { "1#{9}" }
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1.times {
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assert_equal 12, o.instance_eval { @ivar } unless o.frozen?
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assert_equal 13, o.instance_eval { @@cvar }
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assert_equal 14, o.instance_eval { $gvar__eval }
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assert_equal 15, o.instance_eval { Const }
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}
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end
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end
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def test_instance_eval_block_self
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# instance_eval(&block)'s self must not be sticky (jruby/jruby#2060)
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pr = proc { self }
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assert_equal self, pr.call
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o = Object.new
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assert_equal o, o.instance_eval(&pr)
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assert_equal self, pr.call
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end
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def test_instance_eval_block_symbol
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forall_TYPE do |o|
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assert_equal o.to_s, o.instance_eval(&:to_s)
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end
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end
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def test_instance_eval_cvar
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[Object.new, [], 7, :sym, true, false, nil].each do |obj|
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assert_equal(13, obj.instance_eval("@@cvar"))
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assert_equal(13, obj.instance_eval{@@cvar})
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# assert_raise(NameError){obj.instance_eval("@@cvar")}
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# assert_raise(NameError){obj.instance_eval{@@cvar}}
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end
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end
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def test_instance_eval_method
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bug2788 = '[ruby-core:28324]'
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[Object.new, [], nil, true, false].each do |o|
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assert_nothing_raised(TypeError, "#{bug2788} (#{o.inspect})") do
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o.instance_eval {
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def defd_using_instance_eval() :ok end
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}
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end
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assert_equal(:ok, o.defd_using_instance_eval)
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class << o
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remove_method :defd_using_instance_eval
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end
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end
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end
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def test_instance_eval_on_argf_singleton_class
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bug8188 = '[ruby-core:53839] [Bug #8188]'
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assert_warning('', bug8188) do
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ARGF.singleton_class.instance_eval{}
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end
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end
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class Foo
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Bar = 2
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end
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def test_instance_eval_const
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bar = nil
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assert_nothing_raised(NameError) do
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bar = Foo.new.instance_eval("Bar")
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end
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assert_equal(2, bar)
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end
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#
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# From ruby/test/ruby/test_eval.rb
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#
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def make_test_binding
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local1 = local1 = "local1"
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lambda {
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local2 = local2 = "local2"
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return binding
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}.call
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end
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def test_eval_orig
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assert_nil(eval(""))
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bad=false
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eval 'while false; bad = true; print "foo\n" end'
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assert(!bad)
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assert(eval('Object'))
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assert(eval('true'))
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assert(!eval('nil'))
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assert(!eval('false'))
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$foo = 'assert(true)'
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begin
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eval $foo
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rescue
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assert(false)
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end
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assert_equal('assert(true)', eval("$foo"))
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assert_equal(true, eval("true"))
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i = i = 5
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assert(eval("i == 5"))
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assert_equal(5, eval("i"))
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assert(eval("defined? i"))
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x = make_test_binding
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assert_equal("local1", eval("local1", x)) # normal local var
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assert_equal("local2", eval("local2", x)) # nested local var
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bad = true
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begin
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p eval("local1")
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rescue NameError # must raise error
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bad = false
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end
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assert(!bad)
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# !! use class_eval to avoid nested definition
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x = self.class.class_eval %q(
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module EvTest
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EVTEST1 = 25
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evtest2 = 125
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evtest2 = evtest2
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binding
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end
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)
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assert_equal(25, eval("EVTEST1", x)) # constant in module
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assert_equal(125, eval("evtest2", x)) # local var in module
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bad = true
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begin
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eval("EVTEST1")
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rescue NameError # must raise error
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bad = false
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end
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assert(!bad)
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x = binding
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eval "i = 1", x
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assert_equal(1, eval("i", x))
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x = proc{binding}.call
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eval "i = 22", x
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assert_equal(22, eval("i", x))
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t = []
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x = proc{binding}.call
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eval "(0..9).each{|i5| t[i5] = proc{i5*2}}", x
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assert_equal(8, t[4].call)
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x = proc{binding}.call
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eval "for i6 in 1..1; j6=i6; end", x
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assert(eval("defined? i6", x))
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assert(eval("defined? j6", x))
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proc {
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p = binding
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eval "foo11 = 1", p
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foo22 = 5
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proc{foo11=22;foo11}.call
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proc{foo22=55}.call
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# assert_equal(eval("foo11"), eval("foo11", p))
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# assert_equal(1, eval("foo11"))
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assert_equal(eval("foo22"), eval("foo22", p))
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assert_equal(55, eval("foo22"))
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}.call
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end
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def test_nil_instance_eval_cvar
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def nil.test_binding
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binding
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end
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bb = eval("nil.instance_eval \"binding\"", nil.test_binding)
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assert_raise(NameError, "[ruby-dev:24103]") { eval("@@a", bb) }
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class << nil
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remove_method :test_binding
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end
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end
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def test_fixnum_instance_eval_cvar
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assert_raise(NameError, "[ruby-dev:24213]") { 1.instance_eval "@@a" }
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end
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def test_cvar_scope_with_instance_eval
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# TODO: check
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Integer.class_eval "@@test_cvar_scope_with_instance_eval = 1" # depends on [ruby-dev:24229]
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@@test_cvar_scope_with_instance_eval = 4
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assert_equal(4, 1.instance_eval("@@test_cvar_scope_with_instance_eval"), "[ruby-dev:24223]")
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Integer.__send__(:remove_class_variable, :@@test_cvar_scope_with_instance_eval)
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end
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def test_eval_and_define_method
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assert_nothing_raised("[ruby-dev:24228]") {
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def temporally_method_for_test_eval_and_define_method(&block)
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lambda {
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class << Object.new; self end.send(:define_method, :zzz, &block)
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}
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end
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v = eval("temporally_method_for_test_eval_and_define_method {}")
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{}[0] = {}
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v.call
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}
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end
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def test_define_method_block
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cc = Class.new do
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define_method(:foo) {|&block|
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block.call if block
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}
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end
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c = cc.new
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x = "ng"
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c.foo() {x = "ok"}
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assert_equal("ok", x)
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end
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def test_define_method_toplevel
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feature6609 = '[ruby-core:45715]'
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main = eval("self", TOPLEVEL_BINDING)
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assert_nothing_raised(NoMethodError, feature6609) do
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main.instance_eval do
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define_method("feature6609_block") {feature6609}
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end
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end
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assert_equal(feature6609, feature6609_block)
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assert_nothing_raised(NoMethodError, feature6609) do
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main.instance_eval do
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define_method("feature6609_method", Object.instance_method(:feature6609_block))
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end
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end
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assert_equal(feature6609, feature6609_method)
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end
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def test_eval_using_integer_as_binding
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assert_raise(TypeError) { eval("", 1) }
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end
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def test_eval_raise
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assert_raise(RuntimeError) { eval("raise ''") }
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end
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def test_eval_with_toplevel_binding # [ruby-dev:37142]
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ruby("-e", "x = 0; eval('p x', TOPLEVEL_BINDING)") do |f|
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f.close_write
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assert_equal("0", f.read.chomp)
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end
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end
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def test_eval_ascii_incompatible
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assert_raise(ArgumentError) {eval("__ENCODING__".encode("utf-16be"))}
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assert_raise(ArgumentError) {eval("__ENCODING__".encode("utf-16le"))}
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assert_raise(ArgumentError) {eval("__ENCODING__".encode("utf-32be"))}
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assert_raise(ArgumentError) {eval("__ENCODING__".encode("utf-32le"))}
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end
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def test_instance_eval_method_proc
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bug3860 = Class.new do
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def initialize(a);
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@a=a
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end
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def get(*args)
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@a
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end
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end
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foo = bug3860.new 1
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foo_pr = foo.method(:get).to_proc
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result = foo.instance_eval(&foo_pr)
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assert_equal(1, result, 'Bug #3786, Bug #3860, [ruby-core:32501]')
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end
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def test_file_encoding
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fname = "\u{3042}".encode("euc-jp")
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assert_equal(fname, eval("__FILE__", nil, fname, 1))
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end
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def test_eval_location_fstring
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o = Object.new
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o.instance_eval "def foo() end", "generated code"
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o.instance_eval "def bar() end", "generated code"
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a, b = o.method(:foo).source_location[0],
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o.method(:bar).source_location[0]
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assert_same a, b
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end
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def test_eval_location_binding
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assert_warning(/__FILE__ in eval/) do
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assert_equal(__FILE__, eval("__FILE__", binding))
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end
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end
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def test_fstring_instance_eval
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bug = "[ruby-core:78116] [Bug #12930]".freeze
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assert_same bug, (bug.instance_eval {self})
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assert_raise(FrozenError) {
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bug.instance_eval {@ivar = true}
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}
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end
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def test_gced_binding_block
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assert_normal_exit %q{
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def m
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binding
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end
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GC.stress = true
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b = nil
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tap do
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b = m {}
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end
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0.times.to_a
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b.eval('yield')
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}, '[Bug #10368]'
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end
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def orphan_proc
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proc {eval("return :ng")}
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end
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def orphan_lambda
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lambda {eval("return :ok")}
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end
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def test_return_in_eval_proc
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x = orphan_proc
|
|
assert_raise(LocalJumpError) {x.call}
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|
end
|
|
|
|
def test_return_in_eval_lambda
|
|
x = orphan_lambda
|
|
assert_equal(:ok, x.call)
|
|
end
|
|
end
|