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ruby--ruby/test/ruby/test_exception.rb
nobu 50784a0a44 Defer escaping control char in error messages
* eval_error.c (print_errinfo): defer escaping control char in
  error messages until writing to stderr, instead of quoting at
  building the message.  [ruby-core:90853] [Bug #15497]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66753 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2019-01-08 09:08:31 +00:00

1417 lines
33 KiB
Ruby

# frozen_string_literal: false
require 'test/unit'
require 'tempfile'
class TestException < Test::Unit::TestCase
def test_exception_rescued
begin
raise "this must be handled"
assert(false)
rescue
assert(true)
end
end
def test_exception_retry
bad = true
begin
raise "this must be handled no.2"
rescue
if bad
bad = false
retry
end
assert(!bad)
end
assert(true)
end
def test_exception_in_rescue
string = "this must be handled no.3"
assert_raise_with_message(RuntimeError, string) do
begin
raise "exception in rescue clause"
rescue
raise string
end
assert(false)
end
end
def test_exception_in_ensure
string = "exception in ensure clause"
assert_raise_with_message(RuntimeError, string) do
begin
raise "this must be handled no.4"
ensure
assert_instance_of(RuntimeError, $!)
assert_equal("this must be handled no.4", $!.message)
raise "exception in ensure clause"
end
assert(false)
end
end
def test_exception_ensure
bad = true
begin
begin
raise "this must be handled no.5"
ensure
bad = false
end
rescue
end
assert(!bad)
end
def test_exception_ensure_2 # just duplication?
bad = true
begin
begin
raise "this must be handled no.6"
ensure
bad = false
end
rescue
end
assert(!bad)
end
def test_errinfo_in_debug
bug9568 = EnvUtil.labeled_class("[ruby-core:61091] [Bug #9568]", RuntimeError) do
def to_s
require '\0'
rescue LoadError
self.class.to_s
end
end
err = EnvUtil.verbose_warning do
assert_raise(bug9568) do
$DEBUG, debug = true, $DEBUG
begin
raise bug9568
ensure
$DEBUG = debug
end
end
end
assert_include(err, bug9568.to_s)
end
def test_errinfo_encoding_in_debug
exc = Module.new {break class_eval("class C\u{30a8 30e9 30fc} < RuntimeError; self; end".encode(Encoding::EUC_JP))}
exc.inspect
err = EnvUtil.verbose_warning do
assert_raise(exc) do
$DEBUG, debug = true, $DEBUG
begin
raise exc
ensure
$DEBUG = debug
end
end
end
assert_include(err, exc.to_s)
end
def test_break_ensure
bad = true
while true
begin
break
ensure
bad = false
end
end
assert(!bad)
end
def test_catch_no_throw
assert_equal(:foo, catch {:foo})
end
def test_catch_throw
result = catch(:foo) {
loop do
loop do
throw :foo, true
break
end
assert(false, "should not reach here")
end
false
}
assert(result)
end
def test_catch_throw_noarg
assert_nothing_raised(UncaughtThrowError) {
result = catch {|obj|
throw obj, :ok
assert(false, "should not reach here")
}
assert_equal(:ok, result)
}
end
def test_uncaught_throw
tag = nil
e = assert_raise_with_message(UncaughtThrowError, /uncaught throw/) {
catch("foo") {|obj|
tag = obj.dup
throw tag, :ok
assert(false, "should not reach here")
}
assert(false, "should not reach here")
}
assert_not_nil(tag)
assert_same(tag, e.tag)
assert_equal(:ok, e.value)
end
def test_catch_throw_in_require
bug7185 = '[ruby-dev:46234]'
Tempfile.create(["dep", ".rb"]) {|t|
t.puts("throw :extdep, 42")
t.close
assert_equal(42, assert_throw(:extdep, bug7185) {require t.path}, bug7185)
}
end
def test_throw_false
bug12743 = '[ruby-core:77229] [Bug #12743]'
Thread.start {
e = assert_raise_with_message(UncaughtThrowError, /false/, bug12743) {
throw false
}
assert_same(false, e.tag, bug12743)
}.join
end
def test_else_no_exception
begin
assert(true)
rescue
assert(false)
else
assert(true)
end
end
def test_else_raised
begin
assert(true)
raise
assert(false)
rescue
assert(true)
else
assert(false)
end
end
def test_else_nested_no_exception
begin
assert(true)
begin
assert(true)
rescue
assert(false)
else
assert(true)
end
assert(true)
rescue
assert(false)
else
assert(true)
end
end
def test_else_nested_rescued
begin
assert(true)
begin
assert(true)
raise
assert(false)
rescue
assert(true)
else
assert(false)
end
assert(true)
rescue
assert(false)
else
assert(true)
end
end
def test_else_nested_unrescued
begin
assert(true)
begin
assert(true)
rescue
assert(false)
else
assert(true)
end
assert(true)
raise
assert(false)
rescue
assert(true)
else
assert(false)
end
end
def test_else_nested_rescued_reraise
begin
assert(true)
begin
assert(true)
raise
assert(false)
rescue
assert(true)
else
assert(false)
end
assert(true)
raise
assert(false)
rescue
assert(true)
else
assert(false)
end
end
def test_raise_with_wrong_number_of_arguments
assert_raise(TypeError) { raise nil }
assert_raise(TypeError) { raise 1, 1 }
assert_raise(ArgumentError) { raise 1, 1, 1, 1 }
end
def test_type_error_message_encoding
c = eval("Module.new do break class C\u{4032}; self; end; end")
o = c.new
assert_raise_with_message(TypeError, /C\u{4032}/) do
""[o]
end
c.class_eval {def to_int; self; end}
assert_raise_with_message(TypeError, /C\u{4032}/) do
""[o]
end
c.class_eval {def to_a; self; end}
assert_raise_with_message(TypeError, /C\u{4032}/) do
[*o]
end
obj = eval("class C\u{1f5ff}; self; end").new
assert_raise_with_message(TypeError, /C\u{1f5ff}/) do
Class.new {include obj}
end
end
def test_errat
assert_in_out_err([], "p $@", %w(nil), [])
assert_in_out_err([], "$@ = 1", [], /\$! not set \(ArgumentError\)$/)
assert_in_out_err([], <<-INPUT, [], /backtrace must be Array of String \(TypeError\)$/)
begin
raise
rescue
$@ = 1
end
INPUT
assert_in_out_err([], <<-INPUT, [], /^foo: unhandled exception$/)
begin
raise
rescue
$@ = 'foo'
raise
end
INPUT
assert_in_out_err([], <<-INPUT, [], /^foo: unhandled exception\s+from bar\s+from baz$/)
begin
raise
rescue
$@ = %w(foo bar baz)
raise
end
INPUT
end
def test_thread_signal_location
skip
_, stderr, _ = EnvUtil.invoke_ruby(%w"--disable-gems -d", <<-RUBY, false, true)
Thread.start do
Thread.current.report_on_exception = false
begin
Process.kill(:INT, $$)
ensure
raise "in ensure"
end
end.join
RUBY
assert_not_match(/:0/, stderr, "[ruby-dev:39116]")
end
def test_errinfo
begin
raise "foo"
assert(false)
rescue => e
assert_equal(e, $!)
1.times { assert_equal(e, $!) }
end
assert_equal(nil, $!)
end
def test_inspect
assert_equal("#<Exception: Exception>", Exception.new.inspect)
e = Class.new(Exception)
e.class_eval do
def to_s; ""; end
end
assert_equal(e.inspect, e.new.inspect)
end
def test_to_s
e = StandardError.new("foo")
assert_equal("foo", e.to_s)
def (s = Object.new).to_s
"bar"
end
e = StandardError.new(s)
assert_equal("bar", e.to_s)
end
def test_set_backtrace
e = Exception.new
e.set_backtrace("foo")
assert_equal(["foo"], e.backtrace)
e.set_backtrace(%w(foo bar baz))
assert_equal(%w(foo bar baz), e.backtrace)
assert_raise(TypeError) { e.set_backtrace(1) }
assert_raise(TypeError) { e.set_backtrace([1]) }
end
def test_exit_success_p
begin
exit
rescue SystemExit => e
end
assert_send([e, :success?], "success by default")
begin
exit(true)
rescue SystemExit => e
end
assert_send([e, :success?], "true means success")
begin
exit(false)
rescue SystemExit => e
end
assert_not_send([e, :success?], "false means failure")
begin
abort
rescue SystemExit => e
end
assert_not_send([e, :success?], "abort means failure")
end
def test_nomethoderror
bug3237 = '[ruby-core:29948]'
str = "\u2600"
id = :"\u2604"
msg = "undefined method `#{id}' for \"#{str}\":String"
assert_raise_with_message(NoMethodError, msg, bug3237) do
str.__send__(id)
end
end
def test_errno
assert_equal(Encoding.find("locale"), Errno::EINVAL.new.message.encoding)
end
def test_too_many_args_in_eval
bug5720 = '[ruby-core:41520]'
arg_string = (0...140000).to_a.join(", ")
assert_raise(SystemStackError, bug5720) {eval "raise(#{arg_string})"}
end
def test_systemexit_new
e0 = SystemExit.new
assert_equal(0, e0.status)
assert_equal("SystemExit", e0.message)
ei = SystemExit.new(3)
assert_equal(3, ei.status)
assert_equal("SystemExit", ei.message)
es = SystemExit.new("msg")
assert_equal(0, es.status)
assert_equal("msg", es.message)
eis = SystemExit.new(7, "msg")
assert_equal(7, eis.status)
assert_equal("msg", eis.message)
bug5728 = '[ruby-dev:44951]'
et = SystemExit.new(true)
assert_equal(true, et.success?, bug5728)
assert_equal("SystemExit", et.message, bug5728)
ef = SystemExit.new(false)
assert_equal(false, ef.success?, bug5728)
assert_equal("SystemExit", ef.message, bug5728)
ets = SystemExit.new(true, "msg")
assert_equal(true, ets.success?, bug5728)
assert_equal("msg", ets.message, bug5728)
efs = SystemExit.new(false, "msg")
assert_equal(false, efs.success?, bug5728)
assert_equal("msg", efs.message, bug5728)
end
def test_exception_in_name_error_to_str
bug5575 = '[ruby-core:41612]'
Tempfile.create(["test_exception_in_name_error_to_str", ".rb"]) do |t|
t.puts <<-EOC
begin
BasicObject.new.inspect
rescue
$!.inspect
end
EOC
t.close
assert_nothing_raised(NameError, bug5575) do
load(t.path)
end
end
end
def test_equal
bug5865 = '[ruby-core:41979]'
assert_equal(RuntimeError.new("a"), RuntimeError.new("a"), bug5865)
assert_not_equal(RuntimeError.new("a"), StandardError.new("a"), bug5865)
end
def test_exception_in_exception_equal
bug5865 = '[ruby-core:41979]'
Tempfile.create(["test_exception_in_exception_equal", ".rb"]) do |t|
t.puts <<-EOC
o = Object.new
def o.exception(arg)
end
_ = RuntimeError.new("a") == o
EOC
t.close
assert_nothing_raised(ArgumentError, bug5865) do
load(t.path)
end
end
end
Bug4438 = '[ruby-core:35364]'
def test_rescue_single_argument
assert_raise(TypeError, Bug4438) do
begin
raise
rescue 1
end
end
end
def test_rescue_splat_argument
assert_raise(TypeError, Bug4438) do
begin
raise
rescue *Array(1)
end
end
end
def test_to_s_taintness_propagation
for exc in [Exception, NameError]
m = "abcdefg"
e = exc.new(m)
e.taint
s = e.to_s
assert_equal(false, m.tainted?,
"#{exc}#to_s should not propagate taintness")
assert_equal(false, s.tainted?,
"#{exc}#to_s should not propagate taintness")
end
o = Object.new
def o.to_str
"foo"
end
o.taint
e = NameError.new(o)
s = e.to_s
assert_equal(false, s.tainted?)
end
def m
m(&->{return 0})
42
end
def test_stackoverflow
feature6216 = '[ruby-core:43794] [Feature #6216]'
e = assert_raise(SystemStackError, feature6216) {m}
level = e.backtrace.size
assert_operator(level, :>, 10, feature6216)
feature6216 = '[ruby-core:63377] [Feature #6216]'
e = assert_raise(SystemStackError, feature6216) {raise e}
assert_equal(level, e.backtrace.size, feature6216)
end
def test_machine_stackoverflow
bug9109 = '[ruby-dev:47804] [Bug #9109]'
assert_separately(%w[--disable-gem], <<-SRC)
assert_raise(SystemStackError, #{bug9109.dump}) {
h = {a: ->{h[:a].call}}
h[:a].call
}
SRC
rescue SystemStackError
end
def test_machine_stackoverflow_by_define_method
bug9454 = '[ruby-core:60113] [Bug #9454]'
assert_separately(%w[--disable-gem], <<-SRC)
assert_raise(SystemStackError, #{bug9454.dump}) {
define_method(:foo) {self.foo}
self.foo
}
SRC
rescue SystemStackError
end
def test_machine_stackoverflow_by_trace
assert_normal_exit("#{<<-"begin;"}\n#{<<~"end;"}", timeout: 60)
begin;
require 'timeout'
require 'tracer'
class HogeError < StandardError
def to_s
message.upcase # disable tailcall optimization
end
end
Tracer.stdout = open(IO::NULL, "w")
begin
Timeout.timeout(5) do
Tracer.on
HogeError.new.to_s
end
rescue Timeout::Error
# ok. there are no SEGV or critical error
rescue SystemStackError => e
# ok.
end
end;
end
def test_cause
msg = "[Feature #8257]"
cause = nil
e = assert_raise(StandardError) {
begin
raise msg
rescue => e
cause = e.cause
raise StandardError
end
}
assert_nil(cause, msg)
cause = e.cause
assert_instance_of(RuntimeError, cause, msg)
assert_equal(msg, cause.message, msg)
end
def test_cause_reraised
msg = "[Feature #8257]"
e = assert_raise(RuntimeError) {
begin
raise msg
rescue => e
raise e
end
}
assert_not_same(e, e.cause, "#{msg}: should not be recursive")
end
def test_cause_raised_in_rescue
a = nil
e = assert_raise_with_message(RuntimeError, 'b') {
begin
raise 'a'
rescue => a
begin
raise 'b'
rescue => b
assert_same(a, b.cause)
begin
raise 'c'
rescue
raise b
end
end
end
}
assert_same(a, e.cause, 'cause should not be overwritten by reraise')
end
def test_cause_at_raised
a = nil
e = assert_raise_with_message(RuntimeError, 'b') {
begin
raise 'a'
rescue => a
b = RuntimeError.new('b')
assert_nil(b.cause)
begin
raise 'c'
rescue
raise b
end
end
}
assert_equal('c', e.cause.message, 'cause should be the exception at raised')
assert_same(a, e.cause.cause)
end
def test_cause_at_end
errs = [
/-: unexpected return\n/,
/.*undefined local variable or method `n'.*\n/,
]
assert_in_out_err([], <<-'end;', [], errs)
END{n}; END{return}
end;
end
def test_raise_with_cause
msg = "[Feature #8257]"
cause = ArgumentError.new("foobar")
e = assert_raise(RuntimeError) {raise msg, cause: cause}
assert_same(cause, e.cause)
end
def test_cause_with_no_arguments
cause = ArgumentError.new("foobar")
assert_raise_with_message(ArgumentError, /with no arguments/) do
raise cause: cause
end
end
def test_raise_with_cause_in_rescue
e = assert_raise_with_message(RuntimeError, 'b') {
begin
raise 'a'
rescue => a
begin
raise 'b'
rescue => b
assert_same(a, b.cause)
begin
raise 'c'
rescue
raise b, cause: ArgumentError.new('d')
end
end
end
}
assert_equal('d', e.cause.message, 'cause option should be honored always')
assert_nil(e.cause.cause)
end
def test_cause_thread_no_cause
bug12741 = '[ruby-core:77222] [Bug #12741]'
x = Thread.current
a = false
y = Thread.start do
Thread.pass until a
x.raise "stop"
end
begin
raise bug12741
rescue
e = assert_raise_with_message(RuntimeError, "stop") do
a = true
sleep 1
end
end
assert_nil(e.cause)
ensure
y.join
end
def test_cause_thread_with_cause
bug12741 = '[ruby-core:77222] [Bug #12741]'
x = Thread.current
q = Queue.new
y = Thread.start do
q.pop
begin
raise "caller's cause"
rescue
x.raise "stop"
end
end
begin
raise bug12741
rescue
e = assert_raise_with_message(RuntimeError, "stop") do
q.push(true)
sleep 1
end
ensure
y.join
end
assert_equal("caller's cause", e.cause.message)
end
def test_unknown_option
bug = '[ruby-core:63203] [Feature #8257] should pass unknown options'
exc = Class.new(RuntimeError) do
attr_reader :arg
def initialize(msg = nil)
@arg = msg
super(msg)
end
end
e = assert_raise(exc, bug) {raise exc, "foo" => "bar", foo: "bar"}
assert_equal({"foo" => "bar", foo: "bar"}, e.arg, bug)
e = assert_raise(exc, bug) {raise exc, "foo" => "bar", foo: "bar", cause: RuntimeError.new("zzz")}
assert_equal({"foo" => "bar", foo: "bar"}, e.arg, bug)
e = assert_raise(exc, bug) {raise exc, {}}
assert_equal({}, e.arg, bug)
end
def test_circular_cause
bug13043 = '[ruby-core:78688] [Bug #13043]'
begin
begin
raise "error 1"
ensure
orig_error = $!
begin
raise "error 2"
rescue => err
raise orig_error
end
end
rescue => x
end
assert_equal(orig_error, x)
assert_equal(orig_error, err.cause)
assert_nil(orig_error.cause, bug13043)
end
def test_cause_with_frozen_exception
exc = ArgumentError.new("foo").freeze
assert_raise_with_message(ArgumentError, exc.message) {
raise exc, cause: RuntimeError.new("bar")
}
end
def test_anonymous_message
assert_in_out_err([], "raise Class.new(RuntimeError), 'foo'", [], /foo\n/)
end
PrettyObject =
Class.new(BasicObject) do
alias object_id __id__
def pretty_inspect; "`obj'"; end
alias inspect pretty_inspect
end
def test_name_error_new_default
error = NameError.new
assert_equal("NameError", error.message)
end
def test_name_error_new_message
error = NameError.new("Message")
assert_equal("Message", error.message)
end
def test_name_error_new_name
error = NameError.new("Message")
assert_nil(error.name)
error = NameError.new("Message", :foo)
assert_equal(:foo, error.name)
end
def test_name_error_new_receiver
receiver = Object.new
error = NameError.new
assert_raise(ArgumentError) {error.receiver}
assert_equal("NameError", error.message)
error = NameError.new(receiver: receiver)
assert_equal(["NameError", receiver],
[error.message, error.receiver])
error = NameError.new("Message", :foo, receiver: receiver)
assert_equal(["Message", receiver, :foo],
[error.message, error.receiver, error.name])
end
def test_nomethod_error_new_default
error = NoMethodError.new
assert_equal("NoMethodError", error.message)
end
def test_nomethod_error_new_message
error = NoMethodError.new("Message")
assert_equal("Message", error.message)
end
def test_nomethod_error_new_name
error = NoMethodError.new("Message")
assert_nil(error.name)
error = NoMethodError.new("Message", :foo)
assert_equal(:foo, error.name)
end
def test_nomethod_error_new_name_args
error = NoMethodError.new("Message", :foo)
assert_nil(error.args)
error = NoMethodError.new("Message", :foo, [1, 2])
assert_equal([:foo, [1, 2]], [error.name, error.args])
end
def test_nomethod_error_new_name_args_priv
error = NoMethodError.new("Message", :foo, [1, 2])
assert_not_predicate(error, :private_call?)
error = NoMethodError.new("Message", :foo, [1, 2], true)
assert_equal([:foo, [1, 2], true],
[error.name, error.args, error.private_call?])
end
def test_nomethod_error_new_receiver
receiver = Object.new
error = NoMethodError.new
assert_raise(ArgumentError) {error.receiver}
error = NoMethodError.new(receiver: receiver)
assert_equal(receiver, error.receiver)
error = NoMethodError.new("Message")
assert_raise(ArgumentError) {error.receiver}
error = NoMethodError.new("Message", receiver: receiver)
assert_equal(["Message", receiver],
[error.message, error.receiver])
error = NoMethodError.new("Message", :foo)
assert_raise(ArgumentError) {error.receiver}
error = NoMethodError.new("Message", :foo, receiver: receiver)
assert_equal(["Message", :foo, receiver],
[error.message, error.name, error.receiver])
error = NoMethodError.new("Message", :foo, [1, 2])
assert_raise(ArgumentError) {error.receiver}
error = NoMethodError.new("Message", :foo, [1, 2], receiver: receiver)
assert_equal(["Message", :foo, [1, 2], receiver],
[error.message, error.name, error.args, error.receiver])
error = NoMethodError.new("Message", :foo, [1, 2], true)
assert_raise(ArgumentError) {error.receiver}
error = NoMethodError.new("Message", :foo, [1, 2], true, receiver: receiver)
assert_equal([:foo, [1, 2], true, receiver],
[error.name, error.args, error.private_call?, error.receiver])
end
def test_name_error_info_const
obj = PrettyObject.new
e = assert_raise(NameError) {
obj.instance_eval("Object")
}
assert_equal(:Object, e.name)
e = assert_raise(NameError) {
BasicObject::X
}
assert_same(BasicObject, e.receiver)
assert_equal(:X, e.name)
end
def test_name_error_info_method
obj = PrettyObject.new
e = assert_raise(NameError) {
obj.instance_eval {foo}
}
assert_equal(:foo, e.name)
assert_same(obj, e.receiver)
e = assert_raise(NoMethodError) {
obj.foo(1, 2)
}
assert_equal(:foo, e.name)
assert_equal([1, 2], e.args)
assert_same(obj, e.receiver)
assert_not_predicate(e, :private_call?)
e = assert_raise(NoMethodError) {
obj.instance_eval {foo(1, 2)}
}
assert_equal(:foo, e.name)
assert_equal([1, 2], e.args)
assert_same(obj, e.receiver)
assert_predicate(e, :private_call?)
end
def test_name_error_info_local_variables
obj = PrettyObject.new
def obj.test(a, b=nil, *c, &d)
e = a
1.times {|f| g = foo; g}
e
end
e = assert_raise(NameError) {
obj.test(3)
}
assert_equal(:foo, e.name)
assert_same(obj, e.receiver)
assert_equal(%i[a b c d e f g], e.local_variables.sort)
end
def test_name_error_info_method_missing
obj = PrettyObject.new
def obj.method_missing(*)
super
end
e = assert_raise(NoMethodError) {
obj.foo(1, 2)
}
assert_equal(:foo, e.name)
assert_equal([1, 2], e.args)
assert_same(obj, e.receiver)
assert_not_predicate(e, :private_call?)
e = assert_raise(NoMethodError) {
obj.instance_eval {foo(1, 2)}
}
assert_equal(:foo, e.name)
assert_equal([1, 2], e.args)
assert_same(obj, e.receiver)
assert_predicate(e, :private_call?)
end
def test_name_error_info_parent_iseq_mark
assert_separately(['-', File.join(__dir__, 'bug-11928.rb')], <<-'end;')
-> {require ARGV[0]}.call
end;
end
def test_output_string_encoding
# "\x82\xa0" in cp932 is "\u3042" (Japanese hiragana 'a')
# change $stderr to force calling rb_io_write() instead of fwrite()
assert_in_out_err(["-Eutf-8:cp932"], '# coding: cp932
$stderr = $stdout; raise "\x82\xa0"') do |outs, errs, status|
assert_equal 1, outs.size
assert_equal 0, errs.size
err = outs.first.force_encoding('utf-8')
assert err.valid_encoding?, 'must be valid encoding'
assert_match %r/\u3042/, err
end
end
def test_multibyte_and_newline
bug10727 = '[ruby-core:67473] [Bug #10727]'
assert_in_out_err([], <<-'end;', [], /\u{306b 307b 3093 3054} \(E\)\n\u{6539 884c}/, bug10727, encoding: "UTF-8")
class E < StandardError
def initialize
super("\u{306b 307b 3093 3054}\n\u{6539 884c}")
end
end
raise E
end;
end
def assert_null_char(src, *args, **opts)
begin
eval(src)
rescue => e
end
assert_not_nil(e)
assert_include(e.message, "\0")
assert_in_out_err([], src, [], [], *args, **opts) do |_, err,|
err.each do |e|
assert_not_include(e, "\0")
end
end
e
end
def test_control_in_message
bug7574 = '[ruby-dev:46749]'
assert_null_char("#{<<~"begin;"}\n#{<<~'end;'}", bug7574)
begin;
Object.const_defined?("String\0")
end;
assert_null_char("#{<<~"begin;"}\n#{<<~'end;'}", bug7574)
begin;
Object.const_get("String\0")
end;
end
def test_encoding_in_message
name = "\u{e9}t\u{e9}"
e = EnvUtil.with_default_external("US-ASCII") do
assert_raise(NameError) do
Object.const_get(name)
end
end
assert_include(e.message, name)
end
def test_method_missing_reason_clear
bug10969 = '[ruby-core:68515] [Bug #10969]'
a = Class.new {def method_missing(*) super end}.new
assert_raise(NameError) {a.instance_eval("foo")}
assert_raise(NoMethodError, bug10969) {a.public_send("bar", true)}
end
def test_message_of_name_error
assert_raise_with_message(NameError, /\Aundefined method `foo' for module `#<Module:.*>'$/) do
Module.new do
module_function :foo
end
end
end
def capture_warning_warn
verbose = $VERBOSE
warning = []
::Warning.class_eval do
alias_method :warn2, :warn
remove_method :warn
define_method(:warn) do |str|
warning << str
end
end
$VERBOSE = true
yield
return warning
ensure
$VERBOSE = verbose
::Warning.class_eval do
remove_method :warn
alias_method :warn, :warn2
remove_method :warn2
end
end
def test_warning_warn
warning = capture_warning_warn {@a}
assert_match(/instance variable @a not initialized/, warning[0])
assert_equal(["a\nz\n"], capture_warning_warn {warn "a\n", "z"})
assert_equal([], capture_warning_warn {warn})
assert_equal(["\n"], capture_warning_warn {warn ""})
end
def test_kernel_warn_uplevel
warning = capture_warning_warn {warn("test warning", uplevel: 0)}
assert_equal("#{__FILE__}:#{__LINE__-1}: warning: test warning\n", warning[0])
def (obj = Object.new).w(n) warn("test warning", uplevel: n) end
warning = capture_warning_warn {obj.w(0)}
assert_equal("#{__FILE__}:#{__LINE__-2}: warning: test warning\n", warning[0])
warning = capture_warning_warn {obj.w(1)}
assert_equal("#{__FILE__}:#{__LINE__-1}: warning: test warning\n", warning[0])
assert_raise(ArgumentError) {warn("test warning", uplevel: -1)}
assert_in_out_err(["-e", "warn 'ok', uplevel: 1"], '', [], /warning:/)
end
def test_warning_warn_invalid_argument
assert_raise(TypeError) do
::Warning.warn nil
end
assert_raise(TypeError) do
::Warning.warn 1
end
assert_raise(Encoding::CompatibilityError) do
::Warning.warn "\x00a\x00b\x00c".force_encoding("utf-16be")
end
end
def test_warning_warn_circular_require_backtrace
warning = nil
path = nil
Tempfile.create(%w[circular .rb]) do |t|
path = File.realpath(t.path)
basename = File.basename(path)
t.puts "require '#{basename}'"
t.close
$LOAD_PATH.push(File.dirname(t))
warning = capture_warning_warn {require basename}
ensure
$LOAD_PATH.pop
$LOADED_FEATURES.delete(t)
end
assert_equal(1, warning.size)
assert_match(/circular require/, warning.first)
assert_match(/^\tfrom #{Regexp.escape(path)}:1:/, warning.first)
end
def test_warning_warn_super
assert_in_out_err(%[-W0], "#{<<~"{#"}\n#{<<~'};'}", [], /instance variable @a not initialized/)
{#
module Warning
def warn(message)
super
end
end
$VERBOSE = true
@a
};
end
def test_undefined_backtrace
assert_separately([], "#{<<-"begin;"}\n#{<<-"end;"}")
begin;
class Exception
undef backtrace
end
assert_raise(RuntimeError) {
raise RuntimeError, "hello"
}
end;
end
def test_redefined_backtrace
assert_separately([], "#{<<-"begin;"}\n#{<<-"end;"}")
begin;
$exc = nil
class Exception
undef backtrace
def backtrace
$exc = self
end
end
e = assert_raise(RuntimeError) {
raise RuntimeError, "hello"
}
assert_same(e, $exc)
end;
end
def test_blocking_backtrace
assert_separately([], "#{<<~"begin;"}\n#{<<~'end;'}")
begin;
class Bug < RuntimeError
def backtrace
IO.readlines(IO::NULL)
end
end
bug = Bug.new '[ruby-core:85939] [Bug #14577]'
n = 10000
i = 0
n.times do
begin
raise bug
rescue Bug
i += 1
end
end
assert_equal(n, i)
end;
end
def test_wrong_backtrace
assert_separately([], "#{<<-"begin;"}\n#{<<-"end;"}")
begin;
class Exception
undef backtrace
def backtrace(a)
end
end
assert_raise(RuntimeError) {
raise RuntimeError, "hello"
}
end;
error_class = Class.new(StandardError) do
def backtrace; :backtrace; end
end
begin
raise error_class
rescue error_class => e
assert_raise(TypeError) {$@}
assert_raise(TypeError) {e.full_message}
end
end
def test_backtrace_in_eval
bug = '[ruby-core:84434] [Bug #14229]'
assert_in_out_err(['-e', 'eval("raise")'], "", [], /^\(eval\):1:/, bug)
end
def test_full_message
message = RuntimeError.new("testerror").full_message
assert_operator(message, :end_with?, "\n")
test_method = "def foo; raise 'testerror'; end"
out1, err1, status1 = EnvUtil.invoke_ruby(['-e', "#{test_method}; begin; foo; rescue => e; puts e.full_message; end"], '', true, true)
assert_predicate(status1, :success?)
assert_empty(err1, "expected nothing wrote to $stdout by #full_message")
_, err2, status1 = EnvUtil.invoke_ruby(['-e', "#{test_method}; begin; foo; end"], '', true, true)
assert_equal(err2, out1)
e = RuntimeError.new("a\n")
message = assert_nothing_raised(ArgumentError, proc {e.pretty_inspect}) do
e.full_message
end
assert_operator(message, :end_with?, "\n")
message = message.gsub(/\e\[[\d;]*m/, '')
assert_not_operator(message, :end_with?, "\n\n")
e = RuntimeError.new("a\n\nb\n\nc")
message = assert_nothing_raised(ArgumentError, proc {e.pretty_inspect}) do
e.full_message
end
assert_all?(message.lines) do |m|
/\e\[\d[;\d]*m[^\e]*\n/ !~ m
end
e = RuntimeError.new("testerror")
message = e.full_message(highlight: false)
assert_not_match(/\e/, message)
bt = ["test:100", "test:99", "test:98", "test:1"]
e = assert_raise(RuntimeError) {raise RuntimeError, "testerror", bt}
bottom = "test:100: testerror (RuntimeError)\n"
top = "test:1\n"
remark = "Traceback (most recent call last):"
message = e.full_message(highlight: false, order: :top)
assert_not_match(/\e/, message)
assert_operator(message.count("\n"), :>, 2)
assert_operator(message, :start_with?, bottom)
assert_operator(message, :end_with?, top)
message = e.full_message(highlight: false, order: :bottom)
assert_not_match(/\e/, message)
assert_operator(message.count("\n"), :>, 2)
assert_operator(message, :start_with?, remark)
assert_operator(message, :end_with?, bottom)
assert_raise_with_message(ArgumentError, /:top or :bottom/) {
e.full_message(highlight: false, order: :middle)
}
message = e.full_message(highlight: true)
assert_match(/\e/, message)
message = e.full_message
if Exception.to_tty?
assert_match(/\e/, message)
message = message.gsub(/\e\[[\d;]*m/, '')
assert_operator(message, :start_with?, remark)
assert_operator(message, :end_with?, bottom)
else
assert_not_match(/\e/, message)
assert_operator(message, :start_with?, bottom)
assert_operator(message, :end_with?, top)
end
end
def test_exception_in_message
code = "#{<<~"begin;"}\n#{<<~'end;'}"
begin;
class Bug14566 < StandardError
def message; raise self.class; end
end
raise Bug14566
end;
assert_in_out_err([], code, [], /Bug14566/, success: false, timeout: 2)
end
def test_non_exception_cause
assert_raise_with_message(TypeError, /exception/) do
raise "foo", cause: 1
end;
end
def test_circular_cause_handle
assert_raise_with_message(ArgumentError, /circular cause/) do
begin
raise "error 1"
rescue => e1
raise "error 2" rescue raise e1, cause: $!
end
end;
end
def test_super_in_method_missing
assert_separately([], "#{<<~"begin;"}\n#{<<~'end;'}")
begin;
$VERBOSE = nil
class Object
def method_missing(name, *args, &block)
super
end
end
bug14670 = '[ruby-dev:50522] [Bug #14670]'
assert_raise_with_message(NoMethodError, /`foo'/, bug14670) do
Object.new.foo
end
end;
end
end