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ruby--ruby/test/ruby/test_require.rb
Jeremy Evans 79a4484a07 Do not load file with same realpath twice when requiring
This fixes issues with paths being loaded twice in certain cases
when symlinks are used.

It took me multiple attempts to get this working.  My original
attempt tried to convert paths to realpaths before adding them
to $LOADED_FEATURES.  Unfortunately, this doesn't work well
with the loaded feature index, which is based off load paths
and not realpaths. While I was able to get require working, I'm
fairly sure the loaded feature index was not being used as
expected, which would have significant performance implications.
Additionally, I was never able to get that approach working with
autoload when autoloading a non-realpath file. It also broke
some specs.

This takes a more conservative approach. Directly before loading the
file, if the file with the same realpath has been required, the
loading of the file is skipped. The realpaths are stored as
fstrings in a hidden hash.

When rebuilding the loaded feature index, the hash of realpaths
is also rebuilt.  I'm guessing this makes rebuilding process
slower, but I don think that is a hot path. In general, modifying
loaded features is only done when reloading, and that tends to be
in non-production environments.

Change test_require_with_loaded_features_pop test to use 30 threads
and 300 iterations, instead of 4 threads and 1000 iterations.
I saw only sporadic failures with 4/1000, but consistent failures
30/300 threads. These failures were due to the fact that the
concurrent deletions from $LOADED_FEATURES in other threads can
result in rb_ary_entry returning nil when rebuilding the loaded
features index.

To avoid concurrency issues when rebuilding the loaded features
index, the building of the index itself is left alone, and
afterwards, a separate loop is done on a copy of the loaded feature
snapshot in order to rebuild the realpaths hash.

Fixes [Bug #17885]
2021-10-02 05:51:29 -09:00

930 lines
24 KiB
Ruby

# frozen_string_literal: false
require 'test/unit'
require 'tempfile'
require 'tmpdir'
class TestRequire < Test::Unit::TestCase
def test_load_error_path
filename = "should_not_exist"
error = assert_raise(LoadError) do
require filename
end
assert_equal filename, error.path
end
def test_require_invalid_shared_object
Tempfile.create(["test_ruby_test_require", ".so"]) {|t|
t.puts "dummy"
t.close
assert_separately([], "#{<<~"begin;"}\n#{<<~"end;"}")
begin;
$:.replace([IO::NULL])
assert_raise(LoadError) do
require \"#{ t.path }\"
end
end;
}
end
def test_require_too_long_filename
assert_separately(["RUBYOPT"=>nil], "#{<<~"begin;"}\n#{<<~"end;"}")
begin;
$:.replace([IO::NULL])
assert_raise(LoadError) do
require '#{ "foo/" * 10000 }foo'
end
end;
begin
assert_in_out_err(["-S", "-w", "foo/" * 1024 + "foo"], "") do |r, e|
assert_equal([], r)
assert_operator(2, :<=, e.size)
assert_match(/warning: openpath: pathname too long \(ignored\)/, e.first)
assert_match(/\(LoadError\)/, e.last)
end
rescue Errno::EINVAL
# too long commandline may be blocked by OS.
end
end
def test_require_nonascii
bug3758 = '[ruby-core:31915]'
["\u{221e}", "\x82\xa0".force_encoding("cp932")].each do |path|
assert_raise_with_message(LoadError, /#{path}\z/, bug3758) {require path}
end
end
def test_require_nonascii_path
bug8165 = '[ruby-core:53733] [Bug #8165]'
encoding = 'filesystem'
assert_require_nonascii_path(encoding, bug8165)
end
def test_require_nonascii_path_utf8
bug8676 = '[ruby-core:56136] [Bug #8676]'
encoding = Encoding::UTF_8
return if Encoding.find('filesystem') == encoding
assert_require_nonascii_path(encoding, bug8676)
end
def test_require_nonascii_path_shift_jis
bug8676 = '[ruby-core:56136] [Bug #8676]'
encoding = Encoding::Shift_JIS
return if Encoding.find('filesystem') == encoding
assert_require_nonascii_path(encoding, bug8676)
end
case RUBY_PLATFORM
when /cygwin/, /mswin/, /mingw/, /darwin/
def self.ospath_encoding(path)
Encoding::UTF_8
end
else
def self.ospath_encoding(path)
path.encoding
end
end
def prepare_require_path(dir, encoding)
require 'enc/trans/single_byte'
Dir.mktmpdir {|tmp|
begin
require_path = File.join(tmp, dir, 'foo.rb').encode(encoding)
rescue
skip "cannot convert path encoding to #{encoding}"
end
Dir.mkdir(File.dirname(require_path))
open(require_path, "wb") {|f| f.puts '$:.push __FILE__'}
begin
load_path = $:.dup
features = $".dup
yield require_path
ensure
$:.replace(load_path)
$".replace(features)
end
}
end
def assert_require_nonascii_path(encoding, bug)
prepare_require_path("\u3042" * 5, encoding) {|require_path|
begin
# leave paths for require encoding objects
bug = "#{bug} require #{encoding} path"
require_path = "#{require_path}"
$:.clear
assert_nothing_raised(LoadError, bug) {
assert(require(require_path), bug)
assert_equal(self.class.ospath_encoding(require_path), $:.last.encoding, '[Bug #8753]')
assert(!require(require_path), bug)
}
end
}
end
def test_require_path_home_1
env_rubypath, env_home = ENV["RUBYPATH"], ENV["HOME"]
pathname_too_long = /pathname too long \(ignored\).*\(LoadError\)/m
ENV["RUBYPATH"] = "~"
ENV["HOME"] = "/foo" * 1024
assert_in_out_err(%w(-S -w test_ruby_test_require), "", [], pathname_too_long)
ensure
env_rubypath ? ENV["RUBYPATH"] = env_rubypath : ENV.delete("RUBYPATH")
env_home ? ENV["HOME"] = env_home : ENV.delete("HOME")
end
def test_require_path_home_2
env_rubypath, env_home = ENV["RUBYPATH"], ENV["HOME"]
pathname_too_long = /pathname too long \(ignored\).*\(LoadError\)/m
ENV["RUBYPATH"] = "~" + "/foo" * 1024
ENV["HOME"] = "/foo"
assert_in_out_err(%w(-S -w test_ruby_test_require), "", [], pathname_too_long)
ensure
env_rubypath ? ENV["RUBYPATH"] = env_rubypath : ENV.delete("RUBYPATH")
env_home ? ENV["HOME"] = env_home : ENV.delete("HOME")
end
def test_require_path_home_3
env_rubypath, env_home = ENV["RUBYPATH"], ENV["HOME"]
Tempfile.create(["test_ruby_test_require", ".rb"]) {|t|
t.puts "p :ok"
t.close
ENV["RUBYPATH"] = "~"
ENV["HOME"] = t.path
assert_in_out_err(%w(-S test_ruby_test_require), "", [], /\(LoadError\)/)
ENV["HOME"], name = File.split(t.path)
assert_in_out_err(["-S", name], "", %w(:ok), [])
}
ensure
env_rubypath ? ENV["RUBYPATH"] = env_rubypath : ENV.delete("RUBYPATH")
env_home ? ENV["HOME"] = env_home : ENV.delete("HOME")
end
def test_require_with_unc
Tempfile.create(["test_ruby_test_require", ".rb"]) {|t|
t.puts "puts __FILE__"
t.close
path = File.expand_path(t.path).sub(/\A(\w):/, '//127.0.0.1/\1$')
skip "local drive #$1: is not shared" unless File.exist?(path)
args = ['--disable-gems', "-I#{File.dirname(path)}"]
assert_in_out_err(args, "#{<<~"END;"}", [path], [])
begin
require '#{File.basename(path)}'
rescue Errno::EPERM
end
END;
}
end if /mswin|mingw/ =~ RUBY_PLATFORM
def test_require_twice
Dir.mktmpdir do |tmp|
req = File.join(tmp, "very_long_file_name.rb")
File.write(req, "p :ok\n")
assert_file.exist?(req)
req[/.rb$/i] = ""
assert_in_out_err(['--disable-gems'], <<-INPUT, %w(:ok), [])
require "#{req}"
require "#{req}"
INPUT
end
end
def assert_syntax_error_backtrace
loaded_features = $LOADED_FEATURES.dup
Dir.mktmpdir do |tmp|
req = File.join(tmp, "test.rb")
File.write(req, ",\n")
e = assert_raise_with_message(SyntaxError, /unexpected/) {
yield req
}
assert_not_nil(bt = e.backtrace, "no backtrace")
assert_not_empty(bt.find_all {|b| b.start_with? __FILE__}, proc {bt.inspect})
end
$LOADED_FEATURES.replace loaded_features
end
def test_require_syntax_error
assert_syntax_error_backtrace {|req| require req}
end
def test_require_syntax_error_rescued
assert_syntax_error_backtrace do |req|
assert_raise_with_message(SyntaxError, /unexpected/) {require req}
require req
end
end
def test_load_syntax_error
assert_syntax_error_backtrace {|req| load req}
end
def test_define_class
begin
require "socket"
rescue LoadError
return
end
assert_separately([], <<-INPUT)
BasicSocket = 1
assert_raise(TypeError) do
require 'socket'
end
INPUT
assert_separately([], <<-INPUT)
class BasicSocket; end
assert_raise(TypeError) do
require 'socket'
end
INPUT
assert_separately([], <<-INPUT)
class BasicSocket < IO; end
assert_nothing_raised do
require 'socket'
end
INPUT
end
def test_define_class_under
begin
require "zlib"
rescue LoadError
return
end
assert_separately([], <<-INPUT)
module Zlib; end
Zlib::Error = 1
assert_raise(TypeError) do
require 'zlib'
end
INPUT
assert_separately([], <<-INPUT)
module Zlib; end
class Zlib::Error; end
assert_raise(TypeError) do
require 'zlib'
end
INPUT
assert_separately([], <<-INPUT)
module Zlib; end
class Zlib::Error < StandardError; end
assert_nothing_raised do
require 'zlib'
end
INPUT
end
def test_define_module
begin
require "zlib"
rescue LoadError
return
end
assert_separately([], <<-INPUT)
Zlib = 1
assert_raise(TypeError) do
require 'zlib'
end
INPUT
end
def test_define_module_under
begin
require "socket"
rescue LoadError
return
end
assert_separately([], <<-INPUT)
class BasicSocket < IO; end
class Socket < BasicSocket; end
Socket::Constants = 1
assert_raise(TypeError) do
require 'socket'
end
INPUT
end
def test_load
Tempfile.create(["test_ruby_test_require", ".rb"]) {|t|
t.puts "module Foo; end"
t.puts "at_exit { p :wrap_end }"
t.puts "at_exit { raise 'error in at_exit test' }"
t.puts "p :ok"
t.close
assert_in_out_err([], <<-INPUT, %w(:ok :end :wrap_end), /error in at_exit test/)
load(#{ t.path.dump }, true)
GC.start
p :end
INPUT
assert_raise(ArgumentError) { at_exit }
}
end
def test_require_in_wrapped_load
Dir.mktmpdir do |tmp|
File.write("#{tmp}/1.rb", "require_relative '2'\n")
File.write("#{tmp}/2.rb", "class Foo\n""end\n")
assert_separately([], "#{<<~"begin;"}\n#{<<~'end;'}")
path = ""#{tmp.dump}"/1.rb"
begin;
load path, true
assert_instance_of(Class, Foo)
end;
end
end
def test_load_scope
bug1982 = '[ruby-core:25039] [Bug #1982]'
Tempfile.create(["test_ruby_test_require", ".rb"]) {|t|
t.puts "Hello = 'hello'"
t.puts "class Foo"
t.puts " p Hello"
t.puts "end"
t.close
assert_in_out_err([], <<-INPUT, %w("hello"), [], bug1982)
load(#{ t.path.dump }, true)
INPUT
}
end
def test_load_ospath
bug = '[ruby-list:49994] path in ospath'
base = "test_load\u{3042 3044 3046 3048 304a}".encode(Encoding::Windows_31J)
path = nil
Dir.mktmpdir do |dir|
path = File.join(dir, base+".rb")
assert_raise_with_message(LoadError, /#{base}/) {
load(File.join(dir, base))
}
File.open(path, "w+b") do |t|
t.puts "warn 'ok'"
end
assert_include(path, base)
assert_warn("ok\n", bug) {
assert_nothing_raised(LoadError, bug) {
load(path)
}
}
end
end
def test_relative
load_path = $:.dup
loaded_featrures = $LOADED_FEATURES.dup
$:.delete(".")
Dir.mktmpdir do |tmp|
Dir.chdir(tmp) do
Dir.mkdir('x')
File.open('x/t.rb', 'wb') {}
File.open('x/a.rb', 'wb') {|f| f.puts("require_relative('t.rb')")}
assert require('./x/t.rb')
assert !require(File.expand_path('x/t.rb'))
assert_nothing_raised(LoadError) {require('./x/a.rb')}
assert_raise(LoadError) {require('x/t.rb')}
File.unlink(*Dir.glob('x/*'))
Dir.rmdir("#{tmp}/x")
$:.replace(load_path)
load_path = nil
assert(!require('tmpdir'))
end
end
ensure
$:.replace(load_path) if load_path
$LOADED_FEATURES.replace loaded_featrures
end
def test_relative_symlink
Dir.mktmpdir {|tmp|
Dir.chdir(tmp) {
Dir.mkdir "a"
Dir.mkdir "b"
File.open("a/lib.rb", "w") {|f| f.puts 'puts "a/lib.rb"' }
File.open("b/lib.rb", "w") {|f| f.puts 'puts "b/lib.rb"' }
File.open("a/tst.rb", "w") {|f| f.puts 'require_relative "lib"' }
begin
File.symlink("../a/tst.rb", "b/tst.rb")
result = IO.popen([EnvUtil.rubybin, "b/tst.rb"], &:read)
assert_equal("a/lib.rb\n", result, "[ruby-dev:40040]")
rescue NotImplementedError, Errno::EACCES
skip "File.symlink is not implemented"
end
}
}
end
def test_relative_symlink_realpath
Dir.mktmpdir {|tmp|
Dir.chdir(tmp) {
Dir.mkdir "a"
File.open("a/a.rb", "w") {|f| f.puts 'require_relative "b"' }
File.open("a/b.rb", "w") {|f| f.puts '$t += 1' }
Dir.mkdir "b"
File.binwrite("c.rb", <<~RUBY)
$t = 0
$:.unshift(File.expand_path('../b', __FILE__))
require "b"
require "a"
print $t
RUBY
begin
File.symlink("../a/a.rb", "b/a.rb")
File.symlink("../a/b.rb", "b/b.rb")
result = IO.popen([EnvUtil.rubybin, "c.rb"], &:read)
assert_equal("1", result, "bug17885 [ruby-core:104010]")
rescue NotImplementedError, Errno::EACCES
skip "File.symlink is not implemented"
end
}
}
end
def test_frozen_loaded_features
bug3756 = '[ruby-core:31913]'
assert_in_out_err(['-e', '$LOADED_FEATURES.freeze; require "ostruct"'], "",
[], /\$LOADED_FEATURES is frozen; cannot append feature \(RuntimeError\)$/,
bug3756)
end
def test_race_exception
bug5754 = '[ruby-core:41618]'
path = nil
stderr = $stderr
verbose = $VERBOSE
Tempfile.create(%w"bug5754 .rb") {|tmp|
path = tmp.path
tmp.print "#{<<~"begin;"}\n#{<<~"end;"}"
begin;
th = Thread.current
t = th[:t]
scratch = th[:scratch]
if scratch.empty?
scratch << :pre
Thread.pass until t.stop?
raise RuntimeError
else
scratch << :post
end
end;
tmp.close
class << (output = "")
alias write concat
end
$stderr = output
start = false
scratch = []
t1_res = nil
t2_res = nil
t1 = Thread.new do
Thread.pass until start
begin
Kernel.send(:require, path)
rescue RuntimeError
end
t1_res = require(path)
end
t2 = Thread.new do
Thread.pass until scratch[0]
t2_res = Kernel.send(:require, path)
end
t1[:scratch] = t2[:scratch] = scratch
t1[:t] = t2
t2[:t] = t1
$VERBOSE = true
start = true
assert_nothing_raised(ThreadError, bug5754) {t1.join}
assert_nothing_raised(ThreadError, bug5754) {t2.join}
$VERBOSE = false
assert_equal(true, (t1_res ^ t2_res), bug5754 + " t1:#{t1_res} t2:#{t2_res}")
assert_equal([:pre, :post], scratch, bug5754)
assert_match(/circular require/, output)
assert_match(/in #{__method__}'$/o, output)
}
ensure
$VERBOSE = verbose
$stderr = stderr
$".delete(path)
end
def test_loaded_features_encoding
bug6377 = '[ruby-core:44750]'
loadpath = $:.dup
features = $".dup
$".clear
$:.clear
Dir.mktmpdir {|tmp|
$: << tmp
open(File.join(tmp, "foo.rb"), "w") {}
require "foo"
assert_send([Encoding, :compatible?, tmp, $"[0]], bug6377)
}
ensure
$:.replace(loadpath)
$".replace(features)
end
def test_default_loaded_features_encoding
Dir.mktmpdir {|tmp|
Dir.mkdir("#{tmp}/1")
Dir.mkdir("#{tmp}/2")
File.write("#{tmp}/1/bug18191-1.rb", "")
File.write("#{tmp}/2/bug18191-2.rb", "")
assert_separately(%W[-Eutf-8 -I#{tmp}/1 -], "#{<<~"begin;"}\n#{<<~'end;'}")
tmp = #{tmp.dump}"/2"
begin;
$:.unshift(tmp)
require "bug18191-1"
require "bug18191-2"
encs = [Encoding::US_ASCII, Encoding.find("filesystem")]
message = -> {
require "pp"
{filesystem: encs[1], **$".group_by(&:encoding)}.pretty_inspect
}
assert($".all? {|n| encs.include?(n.encoding)}, message)
end;
}
end
def test_require_changed_current_dir
bug7158 = '[ruby-core:47970]'
Dir.mktmpdir {|tmp|
Dir.chdir(tmp) {
Dir.mkdir("a")
Dir.mkdir("b")
open(File.join("a", "foo.rb"), "w") {}
open(File.join("b", "bar.rb"), "w") {|f|
f.puts "p :ok"
}
assert_in_out_err([], "#{<<~"begin;"}\n#{<<~"end;"}", %w(:ok), [], bug7158)
begin;
$:.replace([IO::NULL])
$: << "."
Dir.chdir("a")
require "foo"
Dir.chdir("../b")
p :ng unless require "bar"
Dir.chdir("..")
p :ng if require "b/bar"
end;
}
}
end
def test_require_not_modified_load_path
bug7158 = '[ruby-core:47970]'
Dir.mktmpdir {|tmp|
Dir.chdir(tmp) {
open("foo.rb", "w") {}
assert_in_out_err([], "#{<<~"begin;"}\n#{<<~"end;"}", %w(:ok), [], bug7158)
begin;
$:.replace([IO::NULL])
a = Object.new
def a.to_str
"#{tmp}"
end
$: << a
require "foo"
last_path = $:.pop
p :ok if last_path == a && last_path.class == Object
end;
}
}
end
def test_require_changed_home
bug7158 = '[ruby-core:47970]'
Dir.mktmpdir {|tmp|
Dir.chdir(tmp) {
open("foo.rb", "w") {}
Dir.mkdir("a")
open(File.join("a", "bar.rb"), "w") {}
assert_in_out_err([], "#{<<~"begin;"}\n#{<<~"end;"}", %w(:ok), [], bug7158)
begin;
$:.replace([IO::NULL])
$: << '~'
ENV['HOME'] = "#{tmp}"
require "foo"
ENV['HOME'] = "#{tmp}/a"
p :ok if require "bar"
end;
}
}
end
def test_require_to_path_redefined_in_load_path
bug7158 = '[ruby-core:47970]'
Dir.mktmpdir {|tmp|
Dir.chdir(tmp) {
open("foo.rb", "w") {}
assert_in_out_err([{"RUBYOPT"=>nil}, '--disable-gems'], "#{<<~"begin;"}\n#{<<~"end;"}", %w(:ok), [], bug7158)
begin;
$:.replace([IO::NULL])
a = Object.new
def a.to_path
"bar"
end
$: << a
begin
require "foo"
p [:ng, $LOAD_PATH, ENV['RUBYLIB']]
rescue LoadError => e
raise unless e.path == "foo"
end
def a.to_path
"#{tmp}"
end
p :ok if require "foo"
end;
}
}
end
def test_require_to_str_redefined_in_load_path
bug7158 = '[ruby-core:47970]'
Dir.mktmpdir {|tmp|
Dir.chdir(tmp) {
open("foo.rb", "w") {}
assert_in_out_err([{"RUBYOPT"=>nil}, '--disable-gems'], "#{<<~"begin;"}\n#{<<~"end;"}", %w(:ok), [], bug7158)
begin;
$:.replace([IO::NULL])
a = Object.new
def a.to_str
"foo"
end
$: << a
begin
require "foo"
p [:ng, $LOAD_PATH, ENV['RUBYLIB']]
rescue LoadError => e
raise unless e.path == "foo"
end
def a.to_str
"#{tmp}"
end
p :ok if require "foo"
end;
}
}
end
def assert_require_with_shared_array_modified(add, del)
bug7383 = '[ruby-core:49518]'
Dir.mktmpdir {|tmp|
Dir.chdir(tmp) {
open("foo.rb", "w") {}
Dir.mkdir("a")
open(File.join("a", "bar.rb"), "w") {}
assert_in_out_err(['--disable-gems'], "#{<<~"begin;"}\n#{<<~"end;"}", %w(:ok), [], bug7383)
begin;
$:.replace([IO::NULL])
$:.#{add} "#{tmp}"
$:.#{add} "#{tmp}/a"
require "foo"
$:.#{del}
# Expanded load path cache should be rebuilt.
begin
require "bar"
rescue LoadError => e
if e.path == "bar"
p :ok
else
raise
end
end
end;
}
}
end
def test_require_with_array_pop
assert_require_with_shared_array_modified("push", "pop")
end
def test_require_with_array_shift
assert_require_with_shared_array_modified("unshift", "shift")
end
def test_require_local_var_on_toplevel
bug7536 = '[ruby-core:50701]'
Dir.mktmpdir {|tmp|
Dir.chdir(tmp) {
open("bar.rb", "w") {|f| f.puts 'TOPLEVEL_BINDING.eval("lib = 2")' }
assert_in_out_err(%w[-r./bar.rb], "#{<<~"begin;"}\n#{<<~"end;"}", %w([:lib] 2), [], bug7536)
begin;
puts TOPLEVEL_BINDING.eval("local_variables").inspect
puts TOPLEVEL_BINDING.eval("lib").inspect
end;
}
}
end
def test_require_with_loaded_features_pop
bug7530 = '[ruby-core:50645]'
Tempfile.create(%w'bug-7530- .rb') {|script|
script.close
assert_in_out_err([{"RUBYOPT" => nil}, "-", script.path], "#{<<~"begin;"}\n#{<<~"end;"}", %w(:ok), [], bug7530, timeout: 60)
begin;
PATH = ARGV.shift
THREADS = 30
ITERATIONS_PER_THREAD = 300
THREADS.times.map {
Thread.new do
ITERATIONS_PER_THREAD.times do
require PATH
$".delete_if {|p| Regexp.new(PATH) =~ p}
end
end
}.each(&:join)
p :ok
end;
}
end
def test_loading_fifo_threading_raise
Tempfile.create(%w'fifo .rb') {|f|
f.close
File.unlink(f.path)
File.mkfifo(f.path)
assert_separately(["-", f.path], "#{<<~"begin;"}\n#{<<~"end;"}", timeout: 3)
begin;
th = Thread.current
Thread.start {begin sleep(0.001) end until th.stop?; th.raise(IOError)}
assert_raise(IOError) do
load(ARGV[0])
end
end;
}
end if File.respond_to?(:mkfifo)
def test_loading_fifo_threading_success
Tempfile.create(%w'fifo .rb') {|f|
f.close
File.unlink(f.path)
File.mkfifo(f.path)
assert_separately(["-", f.path], "#{<<~"begin;"}\n#{<<~"end;"}", timeout: 3)
begin;
path = ARGV[0]
th = Thread.current
$ok = false
Thread.start {
begin
sleep(0.001)
end until th.stop?
open(path, File::WRONLY | File::NONBLOCK) {|fifo_w|
fifo_w.print "$ok = true\n__END__\n" # ensure finishing
}
}
load(path)
assert($ok)
end;
}
end if File.respond_to?(:mkfifo)
def test_loading_fifo_fd_leak
skip if RUBY_PLATFORM =~ /android/ # https://rubyci.org/logs/rubyci.s3.amazonaws.com/android29-x86_64/ruby-master/log/20200419T124100Z.fail.html.gz
Tempfile.create(%w'fifo .rb') {|f|
f.close
File.unlink(f.path)
File.mkfifo(f.path)
assert_separately(["-", f.path], "#{<<~"begin;"}\n#{<<~"end;"}", timeout: 3)
begin;
Process.setrlimit(Process::RLIMIT_NOFILE, 50)
th = Thread.current
100.times do |i|
Thread.start {begin sleep(0.001) end until th.stop?; th.raise(IOError)}
assert_raise(IOError, "\#{i} time") do
begin
tap {tap {tap {load(ARGV[0])}}}
rescue LoadError
GC.start
retry
end
end
end
end;
}
end if File.respond_to?(:mkfifo) and defined?(Process::RLIMIT_NOFILE)
def test_throw_while_loading
Tempfile.create(%w'bug-11404 .rb') do |f|
f.puts 'sleep'
f.close
assert_separately(["-", f.path], "#{<<~"begin;"}\n#{<<~'end;'}")
begin;
path = ARGV[0]
class Error < RuntimeError
def exception(*)
begin
throw :blah
rescue UncaughtThrowError
end
self
end
end
assert_throw(:blah) do
x = Thread.current
Thread.start {
sleep 0.00001
x.raise Error.new
}
load path
end
end;
end
end
def test_symlink_load_path
Dir.mktmpdir {|tmp|
Dir.mkdir(File.join(tmp, "real"))
begin
File.symlink "real", File.join(tmp, "symlink")
rescue NotImplementedError, Errno::EACCES
skip "File.symlink is not implemented"
end
File.write(File.join(tmp, "real/test_symlink_load_path.rb"), "print __FILE__")
result = IO.popen([EnvUtil.rubybin, "-I#{tmp}/symlink", "-e", "require 'test_symlink_load_path.rb'"], &:read)
assert_operator(result, :end_with?, "/real/test_symlink_load_path.rb")
}
end
def test_provide_in_required_file
paths, loaded = $:.dup, $".dup
Dir.mktmpdir do |tmp|
provide = File.realdirpath("provide.rb", tmp)
File.write(File.join(tmp, "target.rb"), "raise __FILE__\n")
File.write(provide, '$" << '"'target.rb'\n")
$:.replace([tmp])
assert(require("provide"))
assert(!require("target"))
assert_equal($".pop, provide)
assert_equal($".pop, "target.rb")
end
ensure
$:.replace(paths)
$".replace(loaded)
end
if defined?($LOAD_PATH.resolve_feature_path)
def test_resolve_feature_path
paths, loaded = $:.dup, $".dup
Dir.mktmpdir do |tmp|
Tempfile.create(%w[feature .rb], tmp) do |file|
file.close
path = File.realpath(file.path)
dir, base = File.split(path)
$:.unshift(dir)
assert_equal([:rb, path], $LOAD_PATH.resolve_feature_path(base))
$".push(path)
assert_equal([:rb, path], $LOAD_PATH.resolve_feature_path(base))
end
end
ensure
$:.replace(paths)
$".replace(loaded)
end
def test_resolve_feature_path_with_missing_feature
assert_nil($LOAD_PATH.resolve_feature_path("superkalifragilisticoespialidoso"))
end
end
end