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ruby--ruby/test/ruby/test_io.rb

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# coding: US-ASCII
# frozen_string_literal: false
require 'test/unit'
require 'tmpdir'
require "fcntl"
require 'io/nonblock'
require 'pathname'
require 'socket'
require 'stringio'
require 'timeout'
require 'tempfile'
require 'weakref'
class TestIO < Test::Unit::TestCase
module Feature
def have_close_on_exec?
$stdin.close_on_exec?
true
rescue NotImplementedError
false
end
def have_nonblock?
IO.method_defined?("nonblock=")
end
end
include Feature
extend Feature
def pipe(wp, rp)
re, we = nil, nil
r, w = IO.pipe
rt = Thread.new do
begin
rp.call(r)
rescue Exception
r.close
re = $!
end
end
wt = Thread.new do
begin
wp.call(w)
rescue Exception
w.close
we = $!
end
end
flunk("timeout") unless wt.join(10) && rt.join(10)
ensure
w&.close
r&.close
(wt.kill; wt.join) if wt
(rt.kill; rt.join) if rt
raise we if we
raise re if re
end
def with_pipe
r, w = IO.pipe
begin
yield r, w
ensure
r.close
w.close
end
end
def with_read_pipe(content)
pipe(proc do |w|
w << content
w.close
end, proc do |r|
yield r
end)
end
def mkcdtmpdir
Dir.mktmpdir {|d|
Dir.chdir(d) {
yield
}
}
end
def trapping_usr2
@usr2_rcvd = 0
r, w = IO.pipe
trap(:USR2) do
w.write([@usr2_rcvd += 1].pack('L'))
end
yield r
ensure
trap(:USR2, "DEFAULT")
w&.close
r&.close
end
def test_pipe
r, w = IO.pipe
assert_instance_of(IO, r)
assert_instance_of(IO, w)
[
Thread.start{
w.print "abc"
w.close
},
Thread.start{
assert_equal("abc", r.read)
r.close
}
].each{|thr| thr.join}
end
def test_binmode_pipe
EnvUtil.with_default_internal(Encoding::UTF_8) do
EnvUtil.with_default_external(Encoding::UTF_8) do
begin
reader0, writer0 = IO.pipe
reader0.binmode
writer0.binmode
reader1, writer1 = IO.pipe
reader2, writer2 = IO.pipe(binmode: true)
assert_predicate writer0, :binmode?
assert_predicate writer2, :binmode?
assert_equal writer0.binmode?, writer2.binmode?
assert_equal writer0.external_encoding, writer2.external_encoding
assert_equal writer0.internal_encoding, writer2.internal_encoding
assert_predicate reader0, :binmode?
assert_predicate reader2, :binmode?
assert_equal reader0.binmode?, reader2.binmode?
assert_equal reader0.external_encoding, reader2.external_encoding
assert_equal reader0.internal_encoding, reader2.internal_encoding
reader3, writer3 = IO.pipe("UTF-8:UTF-8", binmode: true)
assert_predicate writer3, :binmode?
assert_equal writer1.external_encoding, writer3.external_encoding
assert_equal writer1.internal_encoding, writer3.internal_encoding
assert_predicate reader3, :binmode?
assert_equal reader1.external_encoding, reader3.external_encoding
assert_equal reader1.internal_encoding, reader3.internal_encoding
reader4, writer4 = IO.pipe("UTF-8:UTF-8", binmode: true)
assert_predicate writer4, :binmode?
assert_equal writer1.external_encoding, writer4.external_encoding
assert_equal writer1.internal_encoding, writer4.internal_encoding
assert_predicate reader4, :binmode?
assert_equal reader1.external_encoding, reader4.external_encoding
assert_equal reader1.internal_encoding, reader4.internal_encoding
reader5, writer5 = IO.pipe("UTF-8", "UTF-8", binmode: true)
assert_predicate writer5, :binmode?
assert_equal writer1.external_encoding, writer5.external_encoding
assert_equal writer1.internal_encoding, writer5.internal_encoding
assert_predicate reader5, :binmode?
assert_equal reader1.external_encoding, reader5.external_encoding
assert_equal reader1.internal_encoding, reader5.internal_encoding
ensure
[
reader0, writer0,
reader1, writer1,
reader2, writer2,
reader3, writer3,
reader4, writer4,
reader5, writer5,
].compact.map(&:close)
end
end
end
end
def test_pipe_block
x = nil
ret = IO.pipe {|r, w|
x = [r,w]
assert_instance_of(IO, r)
assert_instance_of(IO, w)
[
Thread.start do
w.print "abc"
w.close
end,
Thread.start do
assert_equal("abc", r.read)
end
].each{|thr| thr.join}
assert_not_predicate(r, :closed?)
assert_predicate(w, :closed?)
:foooo
}
assert_equal(:foooo, ret)
assert_predicate(x[0], :closed?)
assert_predicate(x[1], :closed?)
end
def test_pipe_block_close
4.times {|i|
x = nil
IO.pipe {|r, w|
x = [r,w]
r.close if (i&1) == 0
w.close if (i&2) == 0
}
assert_predicate(x[0], :closed?)
assert_predicate(x[1], :closed?)
}
end
def test_gets_rs
rs = ":"
pipe(proc do |w|
w.print "aaa:bbb"
w.close
end, proc do |r|
assert_equal "aaa:", r.gets(rs)
assert_equal "bbb", r.gets(rs)
assert_nil r.gets(rs)
r.close
end)
end
def test_gets_default_rs
pipe(proc do |w|
w.print "aaa\nbbb\n"
w.close
end, proc do |r|
assert_equal "aaa\n", r.gets
assert_equal "bbb\n", r.gets
assert_nil r.gets
r.close
end)
end
def test_gets_rs_nil
pipe(proc do |w|
w.print "a\n\nb\n\n"
w.close
end, proc do |r|
assert_equal "a\n\nb\n\n", r.gets(nil)
assert_nil r.gets("")
r.close
end)
end
def test_gets_rs_377
pipe(proc do |w|
w.print "\377xyz"
w.close
end, proc do |r|
r.binmode
assert_equal("\377", r.gets("\377"), "[ruby-dev:24460]")
r.close
end)
end
def test_gets_paragraph
pipe(proc do |w|
w.print "a\n\nb\n\n"
w.close
end, proc do |r|
assert_equal "a\n\n", r.gets(""), "[ruby-core:03771]"
assert_equal "b\n\n", r.gets("")
assert_nil r.gets("")
r.close
end)
end
def test_gets_chomp_rs
rs = ":"
pipe(proc do |w|
w.print "aaa:bbb"
w.close
end, proc do |r|
assert_equal "aaa", r.gets(rs, chomp: true)
assert_equal "bbb", r.gets(rs, chomp: true)
assert_nil r.gets(rs, chomp: true)
r.close
end)
end
def test_gets_chomp_default_rs
pipe(proc do |w|
w.print "aaa\r\nbbb\nccc"
w.close
end, proc do |r|
assert_equal "aaa", r.gets(chomp: true)
assert_equal "bbb", r.gets(chomp: true)
assert_equal "ccc", r.gets(chomp: true)
assert_nil r.gets
r.close
end)
(0..3).each do |i|
pipe(proc do |w|
w.write("a" * ((4096 << i) - 4), "\r\n" "a\r\n")
w.close
end,
proc do |r|
r.gets
assert_equal "a", r.gets(chomp: true)
assert_nil r.gets
r.close
end)
end
end
def test_gets_chomp_rs_nil
pipe(proc do |w|
w.print "a\n\nb\n\n"
w.close
end, proc do |r|
assert_equal "a\n\nb\n", r.gets(nil, chomp: true)
assert_nil r.gets("")
r.close
end)
end
def test_gets_chomp_paragraph
pipe(proc do |w|
w.print "a\n\nb\n\n"
w.close
end, proc do |r|
assert_equal "a", r.gets("", chomp: true)
assert_equal "b", r.gets("", chomp: true)
assert_nil r.gets("", chomp: true)
r.close
end)
end
def test_gets_limit_extra_arg
pipe(proc do |w|
w << "0123456789\n0123456789"
w.close
end, proc do |r|
assert_equal("0123456789\n0", r.gets(nil, 12))
assert_raise(TypeError) { r.gets(3,nil) }
end)
end
# This test cause SEGV.
def test_ungetc
pipe(proc do |w|
w.close
end, proc do |r|
s = "a" * 1000
assert_raise(IOError, "[ruby-dev:31650]") { 200.times { r.ungetc s } }
end)
end
def test_ungetbyte
make_tempfile {|t|
t.open
t.binmode
t.ungetbyte(0x41)
assert_equal(-1, t.pos)
assert_equal(0x41, t.getbyte)
t.rewind
assert_equal(0, t.pos)
t.ungetbyte("qux")
assert_equal(-3, t.pos)
assert_equal("quxfoo\n", t.gets)
assert_equal(4, t.pos)
t.set_encoding("utf-8")
t.ungetbyte(0x89)
t.ungetbyte(0x8e)
t.ungetbyte("\xe7")
t.ungetbyte("\xe7\xb4\x85")
assert_equal(-2, t.pos)
assert_equal("\u7d05\u7389bar\n", t.gets)
}
end
def test_each_byte
pipe(proc do |w|
w << "abc def"
w.close
end, proc do |r|
r.each_byte {|byte| break if byte == 32 }
assert_equal("def", r.read, "[ruby-dev:31659]")
end)
end
def test_each_byte_with_seek
make_tempfile {|t|
bug5119 = '[ruby-core:38609]'
i = 0
open(t.path) do |f|
f.each_byte {i = f.pos}
end
assert_equal(12, i, bug5119)
}
end
def test_each_codepoint
make_tempfile {|t|
bug2959 = '[ruby-core:28650]'
a = ""
File.open(t, 'rt') {|f|
f.each_codepoint {|c| a << c}
}
assert_equal("foo\nbar\nbaz\n", a, bug2959)
}
end
def test_codepoints
make_tempfile {|t|
bug2959 = '[ruby-core:28650]'
a = ""
File.open(t, 'rt') {|f|
assert_warn(/deprecated/) {
f.codepoints {|c| a << c}
}
}
assert_equal("foo\nbar\nbaz\n", a, bug2959)
}
end
def test_rubydev33072
t = make_tempfile
path = t.path
t.close!
assert_raise(Errno::ENOENT, "[ruby-dev:33072]") do
File.read(path, nil, nil, {})
end
end
def with_srccontent(content = "baz")
src = "src"
mkcdtmpdir {
File.open(src, "w") {|f| f << content }
yield src, content
}
end
def test_copy_stream_small
with_srccontent("foobar") {|src, content|
ret = IO.copy_stream(src, "dst")
assert_equal(content.bytesize, ret)
assert_equal(content, File.read("dst"))
}
end
def test_copy_stream_append
with_srccontent("foobar") {|src, content|
File.open('dst', 'ab') do |dst|
ret = IO.copy_stream(src, dst)
assert_equal(content.bytesize, ret)
assert_equal(content, File.read("dst"))
end
}
end
def test_copy_stream_smaller
with_srccontent {|src, content|
# overwrite by smaller file.
dst = "dst"
File.open(dst, "w") {|f| f << "foobar"}
ret = IO.copy_stream(src, dst)
assert_equal(content.bytesize, ret)
assert_equal(content, File.read(dst))
ret = IO.copy_stream(src, dst, 2)
assert_equal(2, ret)
assert_equal(content[0,2], File.read(dst))
ret = IO.copy_stream(src, dst, 0)
assert_equal(0, ret)
assert_equal("", File.read(dst))
ret = IO.copy_stream(src, dst, nil, 1)
assert_equal(content.bytesize-1, ret)
assert_equal(content[1..-1], File.read(dst))
}
end
def test_copy_stream_noent
with_srccontent {|src, content|
assert_raise(Errno::ENOENT) {
IO.copy_stream("nodir/foo", "dst")
}
assert_raise(Errno::ENOENT) {
IO.copy_stream(src, "nodir/bar")
}
}
end
def test_copy_stream_pipe
with_srccontent {|src, content|
pipe(proc do |w|
ret = IO.copy_stream(src, w)
assert_equal(content.bytesize, ret)
w.close
end, proc do |r|
assert_equal(content, r.read)
end)
}
end
def test_copy_stream_write_pipe
with_srccontent {|src, content|
with_pipe {|r, w|
w.close
assert_raise(IOError) { IO.copy_stream(src, w) }
}
}
end
def with_pipecontent
mkcdtmpdir {
yield "abc"
}
end
def test_copy_stream_pipe_to_file
with_pipecontent {|pipe_content|
dst = "dst"
with_read_pipe(pipe_content) {|r|
ret = IO.copy_stream(r, dst)
assert_equal(pipe_content.bytesize, ret)
assert_equal(pipe_content, File.read(dst))
}
}
end
def test_copy_stream_read_pipe
with_pipecontent {|pipe_content|
with_read_pipe(pipe_content) {|r1|
assert_equal("a", r1.getc)
pipe(proc do |w2|
w2.sync = false
w2 << "def"
ret = IO.copy_stream(r1, w2)
assert_equal(2, ret)
w2.close
end, proc do |r2|
assert_equal("defbc", r2.read)
end)
}
with_read_pipe(pipe_content) {|r1|
assert_equal("a", r1.getc)
pipe(proc do |w2|
w2.sync = false
w2 << "def"
ret = IO.copy_stream(r1, w2, 1)
assert_equal(1, ret)
w2.close
end, proc do |r2|
assert_equal("defb", r2.read)
end)
}
with_read_pipe(pipe_content) {|r1|
assert_equal("a", r1.getc)
pipe(proc do |w2|
ret = IO.copy_stream(r1, w2)
assert_equal(2, ret)
w2.close
end, proc do |r2|
assert_equal("bc", r2.read)
end)
}
with_read_pipe(pipe_content) {|r1|
assert_equal("a", r1.getc)
pipe(proc do |w2|
ret = IO.copy_stream(r1, w2, 1)
assert_equal(1, ret)
w2.close
end, proc do |r2|
assert_equal("b", r2.read)
end)
}
with_read_pipe(pipe_content) {|r1|
assert_equal("a", r1.getc)
pipe(proc do |w2|
ret = IO.copy_stream(r1, w2, 0)
assert_equal(0, ret)
w2.close
end, proc do |r2|
assert_equal("", r2.read)
end)
}
pipe(proc do |w1|
w1 << "abc"
w1 << "def"
w1.close
end, proc do |r1|
assert_equal("a", r1.getc)
pipe(proc do |w2|
ret = IO.copy_stream(r1, w2)
assert_equal(5, ret)
w2.close
end, proc do |r2|
assert_equal("bcdef", r2.read)
end)
end)
}
end
def test_copy_stream_file_to_pipe
with_srccontent {|src, content|
pipe(proc do |w|
ret = IO.copy_stream(src, w, 1, 1)
assert_equal(1, ret)
w.close
end, proc do |r|
assert_equal(content[1,1], r.read)
end)
}
end
if have_nonblock?
def test_copy_stream_no_busy_wait
skip "MJIT has busy wait on GC. This sometimes fails with --jit." if RubyVM::MJIT.enabled?
skip "multiple threads already active" if Thread.list.size > 1
msg = 'r58534 [ruby-core:80969] [Backport #13533]'
IO.pipe do |r,w|
r.nonblock = true
assert_cpu_usage_low(msg, stop: ->{w.close}) do
IO.copy_stream(r, IO::NULL)
end
end
end
def test_copy_stream_pipe_nonblock
mkcdtmpdir {
with_read_pipe("abc") {|r1|
assert_equal("a", r1.getc)
with_pipe {|r2, w2|
begin
w2.nonblock = true
rescue Errno::EBADF
skip "nonblocking IO for pipe is not implemented"
end
s = w2.syswrite("a" * 100000)
t = Thread.new { sleep 0.1; r2.read }
ret = IO.copy_stream(r1, w2)
w2.close
assert_equal(2, ret)
assert_equal("a" * s + "bc", t.value)
}
}
}
end
end
def with_bigcontent
yield "abc" * 123456
end
def with_bigsrc
mkcdtmpdir {
with_bigcontent {|bigcontent|
bigsrc = "bigsrc"
File.open("bigsrc", "w") {|f| f << bigcontent }
yield bigsrc, bigcontent
}
}
end
def test_copy_stream_bigcontent
with_bigsrc {|bigsrc, bigcontent|
ret = IO.copy_stream(bigsrc, "bigdst")
assert_equal(bigcontent.bytesize, ret)
assert_equal(bigcontent, File.read("bigdst"))
}
end
def test_copy_stream_bigcontent_chop
with_bigsrc {|bigsrc, bigcontent|
ret = IO.copy_stream(bigsrc, "bigdst", nil, 100)
assert_equal(bigcontent.bytesize-100, ret)
assert_equal(bigcontent[100..-1], File.read("bigdst"))
}
end
def test_copy_stream_bigcontent_mid
with_bigsrc {|bigsrc, bigcontent|
ret = IO.copy_stream(bigsrc, "bigdst", 30000, 100)
assert_equal(30000, ret)
assert_equal(bigcontent[100, 30000], File.read("bigdst"))
}
end
def test_copy_stream_bigcontent_fpos
with_bigsrc {|bigsrc, bigcontent|
File.open(bigsrc) {|f|
begin
assert_equal(0, f.pos)
ret = IO.copy_stream(f, "bigdst", nil, 10)
assert_equal(bigcontent.bytesize-10, ret)
assert_equal(bigcontent[10..-1], File.read("bigdst"))
assert_equal(0, f.pos)
ret = IO.copy_stream(f, "bigdst", 40, 30)
assert_equal(40, ret)
assert_equal(bigcontent[30, 40], File.read("bigdst"))
assert_equal(0, f.pos)
rescue NotImplementedError
#skip "pread(2) is not implemented."
end
}
}
end
def test_copy_stream_closed_pipe
with_srccontent {|src,|
with_pipe {|r, w|
w.close
assert_raise(IOError) { IO.copy_stream(src, w) }
}
}
end
def with_megacontent
yield "abc" * 1234567
end
def with_megasrc
mkcdtmpdir {
with_megacontent {|megacontent|
megasrc = "megasrc"
File.open(megasrc, "w") {|f| f << megacontent }
yield megasrc, megacontent
}
}
end
if have_nonblock?
def test_copy_stream_megacontent_nonblock
with_megacontent {|megacontent|
with_pipe {|r1, w1|
with_pipe {|r2, w2|
begin
r1.nonblock = true
w2.nonblock = true
rescue Errno::EBADF
skip "nonblocking IO for pipe is not implemented"
end
t1 = Thread.new { w1 << megacontent; w1.close }
t2 = Thread.new { r2.read }
t3 = Thread.new {
ret = IO.copy_stream(r1, w2)
assert_equal(megacontent.bytesize, ret)
w2.close
}
_, t2_value, _ = assert_join_threads([t1, t2, t3])
assert_equal(megacontent, t2_value)
}
}
}
end
end
def test_copy_stream_megacontent_pipe_to_file
with_megasrc {|megasrc, megacontent|
with_pipe {|r1, w1|
with_pipe {|r2, w2|
t1 = Thread.new { w1 << megacontent; w1.close }
t2 = Thread.new { r2.read }
t3 = Thread.new {
ret = IO.copy_stream(r1, w2)
assert_equal(megacontent.bytesize, ret)
w2.close
}
_, t2_value, _ = assert_join_threads([t1, t2, t3])
assert_equal(megacontent, t2_value)
}
}
}
end
def test_copy_stream_megacontent_file_to_pipe
with_megasrc {|megasrc, megacontent|
with_pipe {|r, w|
t1 = Thread.new { r.read }
t2 = Thread.new {
ret = IO.copy_stream(megasrc, w)
assert_equal(megacontent.bytesize, ret)
w.close
}
t1_value, _ = assert_join_threads([t1, t2])
assert_equal(megacontent, t1_value)
}
}
end
def test_copy_stream_rbuf
mkcdtmpdir {
begin
pipe(proc do |w|
File.open("foo", "w") {|f| f << "abcd" }
File.open("foo") {|f|
f.read(1)
assert_equal(3, IO.copy_stream(f, w, 10, 1))
}
w.close
end, proc do |r|
assert_equal("bcd", r.read)
end)
rescue NotImplementedError
skip "pread(2) is not implemtented."
end
}
end
def with_socketpair
s1, s2 = UNIXSocket.pair
begin
yield s1, s2
ensure
s1.close unless s1.closed?
s2.close unless s2.closed?
end
end
def test_copy_stream_socket1
with_srccontent("foobar") {|src, content|
with_socketpair {|s1, s2|
ret = IO.copy_stream(src, s1)
assert_equal(content.bytesize, ret)
s1.close
assert_equal(content, s2.read)
}
}
end if defined? UNIXSocket
def test_copy_stream_socket2
with_bigsrc {|bigsrc, bigcontent|
with_socketpair {|s1, s2|
t1 = Thread.new { s2.read }
t2 = Thread.new {
ret = IO.copy_stream(bigsrc, s1)
assert_equal(bigcontent.bytesize, ret)
s1.close
}
result, _ = assert_join_threads([t1, t2])
assert_equal(bigcontent, result)
}
}
end if defined? UNIXSocket
def test_copy_stream_socket3
with_bigsrc {|bigsrc, bigcontent|
with_socketpair {|s1, s2|
t1 = Thread.new { s2.read }
t2 = Thread.new {
ret = IO.copy_stream(bigsrc, s1, 10000)
assert_equal(10000, ret)
s1.close
}
result, _ = assert_join_threads([t1, t2])
assert_equal(bigcontent[0,10000], result)
}
}
end if defined? UNIXSocket
def test_copy_stream_socket4
with_bigsrc {|bigsrc, bigcontent|
File.open(bigsrc) {|f|
assert_equal(0, f.pos)
with_socketpair {|s1, s2|
t1 = Thread.new { s2.read }
t2 = Thread.new {
ret = IO.copy_stream(f, s1, nil, 100)
assert_equal(bigcontent.bytesize-100, ret)
assert_equal(0, f.pos)
s1.close
}
result, _ = assert_join_threads([t1, t2])
assert_equal(bigcontent[100..-1], result)
}
}
}
end if defined? UNIXSocket
def test_copy_stream_socket5
with_bigsrc {|bigsrc, bigcontent|
File.open(bigsrc) {|f|
assert_equal(bigcontent[0,100], f.read(100))
assert_equal(100, f.pos)
with_socketpair {|s1, s2|
t1 = Thread.new { s2.read }
t2 = Thread.new {
ret = IO.copy_stream(f, s1)
assert_equal(bigcontent.bytesize-100, ret)
assert_equal(bigcontent.length, f.pos)
s1.close
}
result, _ = assert_join_threads([t1, t2])
assert_equal(bigcontent[100..-1], result)
}
}
}
end if defined? UNIXSocket
def test_copy_stream_socket6
mkcdtmpdir {
megacontent = "abc" * 1234567
File.open("megasrc", "w") {|f| f << megacontent }
with_socketpair {|s1, s2|
begin
s1.nonblock = true
rescue Errno::EBADF
skip "nonblocking IO for pipe is not implemented"
end
t1 = Thread.new { s2.read }
t2 = Thread.new {
ret = IO.copy_stream("megasrc", s1)
assert_equal(megacontent.bytesize, ret)
s1.close
}
result, _ = assert_join_threads([t1, t2])
assert_equal(megacontent, result)
}
}
end if defined? UNIXSocket
def test_copy_stream_socket7
GC.start
mkcdtmpdir {
megacontent = "abc" * 1234567
File.open("megasrc", "w") {|f| f << megacontent }
with_socketpair {|s1, s2|
begin
s1.nonblock = true
rescue Errno::EBADF
skip "nonblocking IO for pipe is not implemented"
end
trapping_usr2 do |rd|
nr = 30
begin
pid = fork do
s1.close
IO.select([s2])
Process.kill(:USR2, Process.ppid)
buf = String.new(capacity: 16384)
nil while s2.read(16384, buf)
end
s2.close
nr.times do
assert_equal megacontent.bytesize, IO.copy_stream("megasrc", s1)
end
assert_equal(1, rd.read(4).unpack1('L'))
ensure
s1.close
_, status = Process.waitpid2(pid) if pid
end
assert_predicate(status, :success?)
end
}
}
end if defined? UNIXSocket and IO.method_defined?("nonblock=")
def test_copy_stream_strio
src = StringIO.new("abcd")
dst = StringIO.new
ret = IO.copy_stream(src, dst)
assert_equal(4, ret)
assert_equal("abcd", dst.string)
assert_equal(4, src.pos)
end
def test_copy_stream_strio_len
src = StringIO.new("abcd")
dst = StringIO.new
ret = IO.copy_stream(src, dst, 3)
assert_equal(3, ret)
assert_equal("abc", dst.string)
assert_equal(3, src.pos)
end
def test_copy_stream_strio_off
src = StringIO.new("abcd")
with_pipe {|r, w|
assert_raise(ArgumentError) {
IO.copy_stream(src, w, 3, 1)
}
}
end
def test_copy_stream_fname_to_strio
mkcdtmpdir {
File.open("foo", "w") {|f| f << "abcd" }
src = "foo"
dst = StringIO.new
ret = IO.copy_stream(src, dst, 3)
assert_equal(3, ret)
assert_equal("abc", dst.string)
}
end
def test_copy_stream_strio_to_fname
mkcdtmpdir {
# StringIO to filename
src = StringIO.new("abcd")
ret = IO.copy_stream(src, "fooo", 3)
assert_equal(3, ret)
assert_equal("abc", File.read("fooo"))
assert_equal(3, src.pos)
}
end
def test_copy_stream_io_to_strio
mkcdtmpdir {
# IO to StringIO
File.open("bar", "w") {|f| f << "abcd" }
File.open("bar") {|src|
dst = StringIO.new
ret = IO.copy_stream(src, dst, 3)
assert_equal(3, ret)
assert_equal("abc", dst.string)
assert_equal(3, src.pos)
}
}
end
def test_copy_stream_strio_to_io
mkcdtmpdir {
# StringIO to IO
src = StringIO.new("abcd")
ret = File.open("baz", "w") {|dst|
IO.copy_stream(src, dst, 3)
}
assert_equal(3, ret)
assert_equal("abc", File.read("baz"))
assert_equal(3, src.pos)
}
end
def test_copy_stream_strio_to_tempfile
bug11015 = '[ruby-core:68676] [Bug #11015]'
# StringIO to Tempfile
src = StringIO.new("abcd")
dst = Tempfile.new("baz")
ret = IO.copy_stream(src, dst)
assert_equal(4, ret)
pos = dst.pos
dst.rewind
assert_equal("abcd", dst.read)
assert_equal(4, pos, bug11015)
ensure
dst.close!
end
def test_copy_stream_pathname_to_pathname
bug11199 = '[ruby-dev:49008] [Bug #11199]'
mkcdtmpdir {
File.open("src", "w") {|f| f << "ok" }
src = Pathname.new("src")
dst = Pathname.new("dst")
IO.copy_stream(src, dst)
assert_equal("ok", IO.read("dst"), bug11199)
}
end
def test_copy_stream_write_in_binmode
bug8767 = '[ruby-core:56518] [Bug #8767]'
mkcdtmpdir {
EnvUtil.with_default_internal(Encoding::UTF_8) do
# StringIO to object with to_path
bytes = "\xDE\xAD\xBE\xEF".force_encoding(Encoding::ASCII_8BIT)
src = StringIO.new(bytes)
dst = Object.new
def dst.to_path
"qux"
end
assert_nothing_raised(bug8767) {
IO.copy_stream(src, dst)
}
assert_equal(bytes, File.binread("qux"), bug8767)
assert_equal(4, src.pos, bug8767)
end
}
end
def test_copy_stream_read_in_binmode
bug8767 = '[ruby-core:56518] [Bug #8767]'
mkcdtmpdir {
EnvUtil.with_default_internal(Encoding::UTF_8) do
# StringIO to object with to_path
bytes = "\xDE\xAD\xBE\xEF".force_encoding(Encoding::ASCII_8BIT)
File.binwrite("qux", bytes)
dst = StringIO.new
src = Object.new
def src.to_path
"qux"
end
assert_nothing_raised(bug8767) {
IO.copy_stream(src, dst)
}
assert_equal(bytes, dst.string.b, bug8767)
assert_equal(4, dst.pos, bug8767)
end
}
end
class Rot13IO
def initialize(io)
@io = io
end
def readpartial(*args)
ret = @io.readpartial(*args)
ret.tr!('a-zA-Z', 'n-za-mN-ZA-M')
ret
end
def write(str)
@io.write(str.tr('a-zA-Z', 'n-za-mN-ZA-M'))
end
def to_io
@io
end
end
def test_copy_stream_io_to_rot13
mkcdtmpdir {
File.open("bar", "w") {|f| f << "vex" }
File.open("bar") {|src|
File.open("baz", "w") {|dst0|
dst = Rot13IO.new(dst0)
ret = IO.copy_stream(src, dst, 3)
assert_equal(3, ret)
}
assert_equal("irk", File.read("baz"))
}
}
end
def test_copy_stream_rot13_to_io
mkcdtmpdir {
File.open("bar", "w") {|f| f << "flap" }
File.open("bar") {|src0|
src = Rot13IO.new(src0)
File.open("baz", "w") {|dst|
ret = IO.copy_stream(src, dst, 4)
assert_equal(4, ret)
}
}
assert_equal("sync", File.read("baz"))
}
end
def test_copy_stream_rot13_to_rot13
mkcdtmpdir {
File.open("bar", "w") {|f| f << "bin" }
File.open("bar") {|src0|
src = Rot13IO.new(src0)
File.open("baz", "w") {|dst0|
dst = Rot13IO.new(dst0)
ret = IO.copy_stream(src, dst, 3)
assert_equal(3, ret)
}
}
assert_equal("bin", File.read("baz"))
}
end
def test_copy_stream_strio_flush
with_pipe {|r, w|
w.sync = false
w.write "zz"
src = StringIO.new("abcd")
IO.copy_stream(src, w)
t1 = Thread.new {
w.close
}
t2 = Thread.new { r.read }
_, result = assert_join_threads([t1, t2])
assert_equal("zzabcd", result)
}
end
def test_copy_stream_strio_rbuf
pipe(proc do |w|
w << "abcd"
w.close
end, proc do |r|
assert_equal("a", r.read(1))
sio = StringIO.new
IO.copy_stream(r, sio)
assert_equal("bcd", sio.string)
end)
end
def test_copy_stream_src_wbuf
mkcdtmpdir {
pipe(proc do |w|
File.open("foe", "w+") {|f|
f.write "abcd\n"
f.rewind
f.write "xy"
IO.copy_stream(f, w)
}
assert_equal("xycd\n", File.read("foe"))
w.close
end, proc do |r|
assert_equal("cd\n", r.read)
r.close
end)
}
end
class Bug5237
attr_reader :count
def initialize
@count = 0
end
def read(bytes, buffer)
@count += 1
buffer.replace "this is a test"
nil
end
end
def test_copy_stream_broken_src_read_eof
src = Bug5237.new
dst = StringIO.new
assert_equal 0, src.count
th = Thread.new { IO.copy_stream(src, dst) }
flunk("timeout") unless th.join(10)
assert_equal 1, src.count
end
def test_copy_stream_dst_rbuf
mkcdtmpdir {
pipe(proc do |w|
w << "xyz"
w.close
end, proc do |r|
File.open("fom", "w+b") {|f|
f.write "abcd\n"
f.rewind
assert_equal("abc", f.read(3))
f.ungetc "c"
IO.copy_stream(r, f)
}
assert_equal("abxyz", File.read("fom"))
end)
}
end
def test_copy_stream_to_duplex_io
result = IO.pipe {|a,w|
th = Thread.start {w.puts "yes"; w.close}
IO.popen([EnvUtil.rubybin, '-pe$_="#$.:#$_"'], "r+") {|b|
IO.copy_stream(a, b)
b.close_write
assert_join_threads([th])
b.read
}
}
assert_equal("1:yes\n", result)
end
def ruby(*args)
args = ['-e', '$>.write($<.read)'] if args.empty?
ruby = EnvUtil.rubybin
opts = {}
if defined?(Process::RLIMIT_NPROC)
lim = Process.getrlimit(Process::RLIMIT_NPROC)[1]
opts[:rlimit_nproc] = [lim, 2048].min
end
f = IO.popen([ruby] + args, 'r+', opts)
pid = f.pid
yield(f)
ensure
f.close unless !f || f.closed?
begin
Process.wait(pid)
rescue Errno::ECHILD, Errno::ESRCH
end
end
def test_try_convert
assert_equal(STDOUT, IO.try_convert(STDOUT))
assert_equal(nil, IO.try_convert("STDOUT"))
end
def test_ungetc2
f = false
pipe(proc do |w|
Thread.pass until f
w.write("1" * 10000)
w.close
end, proc do |r|
r.ungetc("0" * 10000)
f = true
assert_equal("0" * 10000 + "1" * 10000, r.read)
end)
end
def test_write_with_multiple_arguments
pipe(proc do |w|
w.write("foo", "bar")
w.close
end, proc do |r|
assert_equal("foobar", r.read)
end)
end
def test_write_with_multiple_arguments_and_buffer
mkcdtmpdir do
line = "x"*9+"\n"
file = "test.out"
open(file, "wb") do |w|
w.write(line)
assert_equal(11, w.write(line, "\n"))
end
open(file, "rb") do |r|
assert_equal([line, line, "\n"], r.readlines)
end
line = "x"*99+"\n"
open(file, "wb") do |w|
w.write(line*81) # 8100 bytes
assert_equal(100, w.write("a"*99, "\n"))
end
open(file, "rb") do |r|
81.times {assert_equal(line, r.gets)}
assert_equal("a"*99+"\n", r.gets)
end
end
end
def test_write_with_many_arguments
[1023, 1024].each do |n|
pipe(proc do |w|
w.write(*(["a"] * n))
w.close
end, proc do |r|
assert_equal("a" * n, r.read)
end)
end
end
def test_write_with_multiple_nonstring_arguments
assert_in_out_err([], "STDOUT.write(:foo, :bar)", ["foobar"])
end
def test_write_buffered_with_multiple_arguments
out, err, (_, status) = EnvUtil.invoke_ruby(["-e", "sleep 0.1;puts 'foo'"], "", true, true) do |_, o, e, i|
[o.read, e.read, Process.waitpid2(i)]
end
assert_predicate(status, :success?)
assert_equal("foo\n", out)
assert_empty(err)
end
def test_write_no_args
IO.pipe do |r, w|
assert_equal 0, w.write, '[ruby-core:86285] [Bug #14338]'
assert_equal :wait_readable, r.read_nonblock(1, exception: false)
end
end
def test_write_non_writable
with_pipe do |r, w|
assert_raise(IOError) do
r.write "foobarbaz"
end
end
end
def test_dup
ruby do |f|
begin
f2 = f.dup
f.puts "foo"
f2.puts "bar"
f.close_write
f2.close_write
assert_equal("foo\nbar\n", f.read)
assert_equal("", f2.read)
ensure
f2.close
end
end
end
def test_dup_many
opts = {}
opts[:rlimit_nofile] = 1024 if defined?(Process::RLIMIT_NOFILE)
assert_separately([], <<-'End', opts)
a = []
assert_raise(Errno::EMFILE, Errno::ENFILE, Errno::ENOMEM) do
loop {a << IO.pipe}
end
assert_raise(Errno::EMFILE, Errno::ENFILE, Errno::ENOMEM) do
loop {a << [a[-1][0].dup, a[-1][1].dup]}
end
End
end
def test_inspect
with_pipe do |r, w|
assert_match(/^#<IO:fd \d+>$/, r.inspect)
r.freeze
assert_match(/^#<IO:fd \d+>$/, r.inspect)
end
end
def test_readpartial
pipe(proc do |w|
w.write "foobarbaz"
w.close
end, proc do |r|
assert_raise(ArgumentError) { r.readpartial(-1) }
assert_equal("fooba", r.readpartial(5))
r.readpartial(5, s = "")
assert_equal("rbaz", s)
end)
end
def test_readpartial_lock
with_pipe do |r, w|
s = ""
t = Thread.new { r.readpartial(5, s) }
Thread.pass until t.stop?
assert_raise(RuntimeError) { s.clear }
w.write "foobarbaz"
w.close
assert_equal("fooba", t.value)
end
end
def test_readpartial_pos
mkcdtmpdir {
open("foo", "w") {|f| f << "abc" }
open("foo") {|f|
f.seek(0)
assert_equal("ab", f.readpartial(2))
assert_equal(2, f.pos)
}
}
end
def test_readpartial_with_not_empty_buffer
pipe(proc do |w|
w.write "foob"
w.close
end, proc do |r|
r.readpartial(5, s = "01234567")
assert_equal("foob", s)
end)
end
def test_readpartial_buffer_error
with_pipe do |r, w|
s = ""
t = Thread.new { r.readpartial(5, s) }
Thread.pass until t.stop?
t.kill
t.value
assert_equal("", s)
end
end if /cygwin/ !~ RUBY_PLATFORM
def test_read
pipe(proc do |w|
w.write "foobarbaz"
w.close
end, proc do |r|
assert_raise(ArgumentError) { r.read(-1) }
assert_equal("fooba", r.read(5))
r.read(nil, s = "")
assert_equal("rbaz", s)
end)
end
def test_read_lock
with_pipe do |r, w|
s = ""
t = Thread.new { r.read(5, s) }
Thread.pass until t.stop?
assert_raise(RuntimeError) { s.clear }
w.write "foobarbaz"
w.close
assert_equal("fooba", t.value)
end
end
def test_read_with_not_empty_buffer
pipe(proc do |w|
w.write "foob"
w.close
end, proc do |r|
r.read(nil, s = "01234567")
assert_equal("foob", s)
end)
end
def test_read_buffer_error
with_pipe do |r, w|
s = ""
t = Thread.new { r.read(5, s) }
Thread.pass until t.stop?
t.kill
t.value
assert_equal("", s)
end
with_pipe do |r, w|
s = "xxx"
t = Thread.new {r.read(2, s)}
Thread.pass until t.stop?
t.kill
t.value
assert_equal("xxx", s)
end
end if /cygwin/ !~ RUBY_PLATFORM
def test_write_nonblock
pipe(proc do |w|
w.write_nonblock(1)
w.close
end, proc do |r|
assert_equal("1", r.read)
end)
end
def test_read_nonblock_with_not_empty_buffer
with_pipe {|r, w|
w.write "foob"
w.close
r.read_nonblock(5, s = "01234567")
assert_equal("foob", s)
}
end
def test_write_nonblock_simple_no_exceptions
pipe(proc do |w|
w.write_nonblock('1', exception: false)
w.close
end, proc do |r|
assert_equal("1", r.read)
end)
end
def test_read_nonblock_error
with_pipe {|r, w|
begin
r.read_nonblock 4096
rescue Errno::EWOULDBLOCK
assert_kind_of(IO::WaitReadable, $!)
end
}
with_pipe {|r, w|
begin
r.read_nonblock 4096, ""
rescue Errno::EWOULDBLOCK
assert_kind_of(IO::WaitReadable, $!)
end
}
end if have_nonblock?
def test_read_nonblock_invalid_exception
with_pipe {|r, w|
assert_raise(ArgumentError) {r.read_nonblock(4096, exception: 1)}
}
end if have_nonblock?
def test_read_nonblock_no_exceptions
skip '[ruby-core:90895] MJIT worker may leave fd open in a forked child' if RubyVM::MJIT.enabled? # TODO: consider acquiring GVL from MJIT worker.
with_pipe {|r, w|
assert_equal :wait_readable, r.read_nonblock(4096, exception: false)
w.puts "HI!"
assert_equal "HI!\n", r.read_nonblock(4096, exception: false)
w.close
assert_equal nil, r.read_nonblock(4096, exception: false)
}
end if have_nonblock?
def test_read_nonblock_with_buffer_no_exceptions
with_pipe {|r, w|
assert_equal :wait_readable, r.read_nonblock(4096, "", exception: false)
w.puts "HI!"
buf = "buf"
value = r.read_nonblock(4096, buf, exception: false)
assert_equal value, "HI!\n"
assert_same(buf, value)
w.close
assert_equal nil, r.read_nonblock(4096, "", exception: false)
}
end if have_nonblock?
def test_write_nonblock_error
with_pipe {|r, w|
begin
loop {
w.write_nonblock "a"*100000
}
rescue Errno::EWOULDBLOCK
assert_kind_of(IO::WaitWritable, $!)
end
}
end if have_nonblock?
def test_write_nonblock_invalid_exception
with_pipe {|r, w|
assert_raise(ArgumentError) {w.write_nonblock(4096, exception: 1)}
}
end if have_nonblock?
def test_write_nonblock_no_exceptions
with_pipe {|r, w|
loop {
ret = w.write_nonblock("a"*100000, exception: false)
if ret.is_a?(Symbol)
assert_equal :wait_writable, ret
break
end
}
}
end if have_nonblock?
def test_gets
pipe(proc do |w|
w.write "foobarbaz"
w.close
end, proc do |r|
assert_equal("", r.gets(0))
assert_equal("foobarbaz", r.gets(9))
end)
end
def test_close_read
ruby do |f|
f.close_read
f.write "foobarbaz"
assert_raise(IOError) { f.read }
assert_nothing_raised(IOError) {f.close_read}
assert_nothing_raised(IOError) {f.close}
assert_nothing_raised(IOError) {f.close_read}
end
end
def test_close_read_pipe
with_pipe do |r, w|
r.close_read
assert_raise(Errno::EPIPE) { w.write "foobarbaz" }
assert_nothing_raised(IOError) {r.close_read}
assert_nothing_raised(IOError) {r.close}
assert_nothing_raised(IOError) {r.close_read}
end
end
def test_write_epipe_nosync
assert_separately([], <<-"end;")
r, w = IO.pipe
r.close
w.sync = false
assert_raise(Errno::EPIPE) {
loop { w.write "a" }
}
end;
end
def test_close_read_non_readable
with_pipe do |r, w|
assert_raise(IOError) do
w.close_read
end
end
end
def test_close_write
ruby do |f|
f.write "foobarbaz"
f.close_write
assert_equal("foobarbaz", f.read)
assert_nothing_raised(IOError) {f.close_write}
assert_nothing_raised(IOError) {f.close}
assert_nothing_raised(IOError) {f.close_write}
end
end
def test_close_write_non_readable
with_pipe do |r, w|
assert_raise(IOError) do
r.close_write
end
end
end
def test_close_read_write_separately
bug = '[ruby-list:49598]'
(1..10).each do |i|
assert_nothing_raised(IOError, "#{bug} trying ##{i}") do
IO.popen(EnvUtil.rubybin, "r+") {|f|
th = Thread.new {f.close_write}
f.close_read
th.join
}
end
end
end
def test_pid
IO.pipe {|r, w|
assert_equal(nil, r.pid)
assert_equal(nil, w.pid)
}
begin
pipe = IO.popen(EnvUtil.rubybin, "r+")
pid1 = pipe.pid
pipe.puts "p $$"
pipe.close_write
pid2 = pipe.read.chomp.to_i
assert_equal(pid2, pid1)
assert_equal(pid2, pipe.pid)
ensure
pipe.close
end
assert_raise(IOError) { pipe.pid }
end
def test_pid_after_close_read
pid1 = pid2 = nil
IO.popen("exit ;", "r+") do |io|
pid1 = io.pid
io.close_read
pid2 = io.pid
end
assert_not_nil(pid1)
assert_equal(pid1, pid2)
end
def make_tempfile
t = Tempfile.new("test_io")
t.binmode
t.puts "foo"
t.puts "bar"
t.puts "baz"
t.close
if block_given?
begin
yield t
ensure
t.close(true)
end
else
t
end
end
def test_set_lineno
make_tempfile {|t|
assert_separately(["-", t.path], <<-SRC)
open(ARGV[0]) do |f|
assert_equal(0, $.)
f.gets; assert_equal(1, $.)
f.gets; assert_equal(2, $.)
f.lineno = 1000; assert_equal(2, $.)
f.gets; assert_equal(1001, $.)
f.gets; assert_equal(1001, $.)
f.rewind; assert_equal(1001, $.)
f.gets; assert_equal(1, $.)
f.gets; assert_equal(2, $.)
f.gets; assert_equal(3, $.)
f.gets; assert_equal(3, $.)
end
SRC
}
end
def test_set_lineno_gets
pipe(proc do |w|
w.puts "foo"
w.puts "bar"
w.puts "baz"
w.close
end, proc do |r|
r.gets; assert_equal(1, $.)
r.gets; assert_equal(2, $.)
r.lineno = 1000; assert_equal(2, $.)
r.gets; assert_equal(1001, $.)
r.gets; assert_equal(1001, $.)
end)
end
def test_set_lineno_readline
pipe(proc do |w|
w.puts "foo"
w.puts "bar"
w.puts "baz"
w.close
end, proc do |r|
r.readline; assert_equal(1, $.)
r.readline; assert_equal(2, $.)
r.lineno = 1000; assert_equal(2, $.)
r.readline; assert_equal(1001, $.)
assert_raise(EOFError) { r.readline }
end)
end
def test_each_char
pipe(proc do |w|
w.puts "foo"
w.puts "bar"
w.puts "baz"
w.close
end, proc do |r|
a = []
r.each_char {|c| a << c }
assert_equal(%w(f o o) + ["\n"] + %w(b a r) + ["\n"] + %w(b a z) + ["\n"], a)
end)
end
def test_lines
verbose, $VERBOSE = $VERBOSE, nil
pipe(proc do |w|
w.puts "foo"
w.puts "bar"
w.puts "baz"
w.close
end, proc do |r|
e = nil
assert_warn(/deprecated/) {
e = r.lines
}
assert_equal("foo\n", e.next)
assert_equal("bar\n", e.next)
assert_equal("baz\n", e.next)
assert_raise(StopIteration) { e.next }
end)
ensure
$VERBOSE = verbose
end
def test_bytes
verbose, $VERBOSE = $VERBOSE, nil
pipe(proc do |w|
w.binmode
w.puts "foo"
w.puts "bar"
w.puts "baz"
w.close
end, proc do |r|
e = nil
assert_warn(/deprecated/) {
e = r.bytes
}
(%w(f o o) + ["\n"] + %w(b a r) + ["\n"] + %w(b a z) + ["\n"]).each do |c|
assert_equal(c.ord, e.next)
end
assert_raise(StopIteration) { e.next }
end)
ensure
$VERBOSE = verbose
end
def test_chars
verbose, $VERBOSE = $VERBOSE, nil
pipe(proc do |w|
w.puts "foo"
w.puts "bar"
w.puts "baz"
w.close
end, proc do |r|
e = nil
assert_warn(/deprecated/) {
e = r.chars
}
(%w(f o o) + ["\n"] + %w(b a r) + ["\n"] + %w(b a z) + ["\n"]).each do |c|
assert_equal(c, e.next)
end
assert_raise(StopIteration) { e.next }
end)
ensure
$VERBOSE = verbose
end
def test_readbyte
pipe(proc do |w|
w.binmode
w.puts "foo"
w.puts "bar"
w.puts "baz"
w.close
end, proc do |r|
r.binmode
(%w(f o o) + ["\n"] + %w(b a r) + ["\n"] + %w(b a z) + ["\n"]).each do |c|
assert_equal(c.ord, r.readbyte)
end
assert_raise(EOFError) { r.readbyte }
end)
end
def test_readchar
pipe(proc do |w|
w.puts "foo"
w.puts "bar"
w.puts "baz"
w.close
end, proc do |r|
(%w(f o o) + ["\n"] + %w(b a r) + ["\n"] + %w(b a z) + ["\n"]).each do |c|
assert_equal(c, r.readchar)
end
assert_raise(EOFError) { r.readchar }
end)
end
def test_close_on_exec
ruby do |f|
assert_equal(true, f.close_on_exec?)
f.close_on_exec = false
assert_equal(false, f.close_on_exec?)
f.close_on_exec = true
assert_equal(true, f.close_on_exec?)
f.close_on_exec = false
assert_equal(false, f.close_on_exec?)
end
with_pipe do |r, w|
assert_equal(true, r.close_on_exec?)
r.close_on_exec = false
assert_equal(false, r.close_on_exec?)
r.close_on_exec = true
assert_equal(true, r.close_on_exec?)
r.close_on_exec = false
assert_equal(false, r.close_on_exec?)
assert_equal(true, w.close_on_exec?)
w.close_on_exec = false
assert_equal(false, w.close_on_exec?)
w.close_on_exec = true
assert_equal(true, w.close_on_exec?)
w.close_on_exec = false
assert_equal(false, w.close_on_exec?)
end
end if have_close_on_exec?
def test_pos
make_tempfile {|t|
open(t.path, IO::RDWR|IO::CREAT|IO::TRUNC, 0600) do |f|
f.write "Hello"
assert_equal(5, f.pos)
end
open(t.path, IO::RDWR|IO::CREAT|IO::TRUNC, 0600) do |f|
f.sync = true
f.read
f.write "Hello"
assert_equal(5, f.pos)
end
}
end
def test_pos_with_getc
_bug6179 = '[ruby-core:43497]'
make_tempfile {|t|
["", "t", "b"].each do |mode|
open(t.path, "w#{mode}") do |f|
f.write "0123456789\n"
end
open(t.path, "r#{mode}") do |f|
assert_equal 0, f.pos, "mode=r#{mode}"
assert_equal '0', f.getc, "mode=r#{mode}"
assert_equal 1, f.pos, "mode=r#{mode}"
assert_equal '1', f.getc, "mode=r#{mode}"
assert_equal 2, f.pos, "mode=r#{mode}"
assert_equal '2', f.getc, "mode=r#{mode}"
assert_equal 3, f.pos, "mode=r#{mode}"
assert_equal '3', f.getc, "mode=r#{mode}"
assert_equal 4, f.pos, "mode=r#{mode}"
assert_equal '4', f.getc, "mode=r#{mode}"
end
end
}
end
def can_seek_data(f)
if /linux/ =~ RUBY_PLATFORM
require "-test-/file"
# lseek(2)
case Bug::File::Fs.fsname(f.path)
when "btrfs"
return true if (Etc.uname[:release].split('.').map(&:to_i) <=> [3,1]) >= 0
when "ocfs"
return true if (Etc.uname[:release].split('.').map(&:to_i) <=> [3,2]) >= 0
when "xfs"
return true if (Etc.uname[:release].split('.').map(&:to_i) <=> [3,5]) >= 0
when "ext4"
return true if (Etc.uname[:release].split('.').map(&:to_i) <=> [3,8]) >= 0
when "tmpfs"
return true if (Etc.uname[:release].split('.').map(&:to_i) <=> [3,8]) >= 0
end
end
false
end
def test_seek
make_tempfile {|t|
open(t.path) { |f|
f.seek(9)
assert_equal("az\n", f.read)
}
open(t.path) { |f|
f.seek(9, IO::SEEK_SET)
assert_equal("az\n", f.read)
}
open(t.path) { |f|
f.seek(-4, IO::SEEK_END)
assert_equal("baz\n", f.read)
}
open(t.path) { |f|
assert_equal("foo\n", f.gets)
f.seek(2, IO::SEEK_CUR)
assert_equal("r\nbaz\n", f.read)
}
if defined?(IO::SEEK_DATA)
open(t.path) { |f|
break unless can_seek_data(f)
assert_equal("foo\n", f.gets)
f.seek(0, IO::SEEK_DATA)
assert_equal("foo\nbar\nbaz\n", f.read)
}
open(t.path, 'r+') { |f|
break unless can_seek_data(f)
f.seek(100*1024, IO::SEEK_SET)
f.print("zot\n")
f.seek(50*1024, IO::SEEK_DATA)
assert_operator(f.pos, :>=, 50*1024)
assert_match(/\A\0*zot\n\z/, f.read)
}
end
if defined?(IO::SEEK_HOLE)
open(t.path) { |f|
break unless can_seek_data(f)
assert_equal("foo\n", f.gets)
f.seek(0, IO::SEEK_HOLE)
assert_operator(f.pos, :>, 20)
f.seek(100*1024, IO::SEEK_HOLE)
assert_equal("", f.read)
}
end
}
end
def test_seek_symwhence
make_tempfile {|t|
open(t.path) { |f|
f.seek(9, :SET)
assert_equal("az\n", f.read)
}
open(t.path) { |f|
f.seek(-4, :END)
assert_equal("baz\n", f.read)
}
open(t.path) { |f|
assert_equal("foo\n", f.gets)
f.seek(2, :CUR)
assert_equal("r\nbaz\n", f.read)
}
if defined?(IO::SEEK_DATA)
open(t.path) { |f|
break unless can_seek_data(f)
assert_equal("foo\n", f.gets)
f.seek(0, :DATA)
assert_equal("foo\nbar\nbaz\n", f.read)
}
open(t.path, 'r+') { |f|
break unless can_seek_data(f)
f.seek(100*1024, :SET)
f.print("zot\n")
f.seek(50*1024, :DATA)
assert_operator(f.pos, :>=, 50*1024)
assert_match(/\A\0*zot\n\z/, f.read)
}
end
if defined?(IO::SEEK_HOLE)
open(t.path) { |f|
break unless can_seek_data(f)
assert_equal("foo\n", f.gets)
f.seek(0, :HOLE)
assert_operator(f.pos, :>, 20)
f.seek(100*1024, :HOLE)
assert_equal("", f.read)
}
end
}
end
def test_sysseek
make_tempfile {|t|
open(t.path) do |f|
f.sysseek(-4, IO::SEEK_END)
assert_equal("baz\n", f.read)
end
open(t.path) do |f|
a = [f.getc, f.getc, f.getc]
a.reverse_each {|c| f.ungetc c }
assert_raise(IOError) { f.sysseek(1) }
end
}
end
def test_syswrite
make_tempfile {|t|
open(t.path, "w") do |f|
o = Object.new
def o.to_s; "FOO\n"; end
f.syswrite(o)
end
assert_equal("FOO\n", File.read(t.path))
}
end
def test_sysread
make_tempfile {|t|
open(t.path) do |f|
a = [f.getc, f.getc, f.getc]
a.reverse_each {|c| f.ungetc c }
assert_raise(IOError) { f.sysread(1) }
end
}
end
def test_sysread_with_not_empty_buffer
pipe(proc do |w|
w.write "foob"
w.close
end, proc do |r|
r.sysread( 5, s = "01234567" )
assert_equal( "foob", s )
end)
end
def test_flag
make_tempfile {|t|
assert_raise(ArgumentError) do
open(t.path, "z") { }
end
assert_raise(ArgumentError) do
open(t.path, "rr") { }
end
assert_raise(ArgumentError) do
open(t.path, "rbt") { }
end
}
end
def test_sysopen
make_tempfile {|t|
fd = IO.sysopen(t.path)
assert_kind_of(Integer, fd)
f = IO.for_fd(fd)
assert_equal("foo\nbar\nbaz\n", f.read)
f.close
fd = IO.sysopen(t.path, "w", 0666)
assert_kind_of(Integer, fd)
if defined?(Fcntl::F_GETFL)
f = IO.for_fd(fd)
else
f = IO.for_fd(fd, 0666)
end
f.write("FOO\n")
f.close
fd = IO.sysopen(t.path, "r")
assert_kind_of(Integer, fd)
f = IO.for_fd(fd)
assert_equal("FOO\n", f.read)
f.close
}
end
def try_fdopen(fd, autoclose = true, level = 50)
if level > 0
begin
1.times {return try_fdopen(fd, autoclose, level - 1)}
ensure
GC.start
end
else
WeakRef.new(IO.for_fd(fd, autoclose: autoclose))
end
end
def test_autoclose
feature2250 = '[ruby-core:26222]'
pre = 'ft2250'
Dir.mktmpdir {|d|
t = open("#{d}/#{pre}", "w")
f = IO.for_fd(t.fileno)
assert_equal(true, f.autoclose?)
f.autoclose = false
assert_equal(false, f.autoclose?)
f.close
assert_nothing_raised(Errno::EBADF, feature2250) {t.close}
t = open("#{d}/#{pre}", "w")
f = IO.for_fd(t.fileno, autoclose: false)
assert_equal(false, f.autoclose?)
f.autoclose = true
assert_equal(true, f.autoclose?)
f.close
assert_raise(Errno::EBADF, feature2250) {t.close}
}
end
def test_autoclose_true_closed_by_finalizer
# http://ci.rvm.jp/results/trunk-mjit@silicon-docker/1465760
# http://ci.rvm.jp/results/trunk-mjit@silicon-docker/1469765
skip 'this randomly fails with MJIT' if RubyVM::MJIT.enabled?
feature2250 = '[ruby-core:26222]'
pre = 'ft2250'
t = Tempfile.new(pre)
w = try_fdopen(t.fileno)
begin
w.close
begin
t.close
rescue Errno::EBADF
end
skip "expect IO object was GC'ed but not recycled yet"
rescue WeakRef::RefError
assert_raise(Errno::EBADF, feature2250) {t.close}
end
ensure
t&.close!
end
def test_autoclose_false_closed_by_finalizer
feature2250 = '[ruby-core:26222]'
pre = 'ft2250'
t = Tempfile.new(pre)
w = try_fdopen(t.fileno, false)
begin
w.close
t.close
skip "expect IO object was GC'ed but not recycled yet"
rescue WeakRef::RefError
assert_nothing_raised(Errno::EBADF, feature2250) {t.close}
end
ensure
t.close!
end
def test_open_redirect
o = Object.new
def o.to_open; self; end
assert_equal(o, open(o))
o2 = nil
open(o) do |f|
o2 = f
end
assert_equal(o, o2)
end
def test_open_pipe
open("|" + EnvUtil.rubybin, "r+") do |f|
f.puts "puts 'foo'"
f.close_write
assert_equal("foo\n", f.read)
end
end
def test_read_command
assert_equal("foo\n", IO.read("|echo foo"))
assert_raise(Errno::ENOENT, Errno::EINVAL) do
File.read("|#{EnvUtil.rubybin} -e puts")
end
assert_raise(Errno::ENOENT, Errno::EINVAL) do
File.binread("|#{EnvUtil.rubybin} -e puts")
end
assert_raise(Errno::ENOENT, Errno::EINVAL) do
Class.new(IO).read("|#{EnvUtil.rubybin} -e puts")
end
assert_raise(Errno::ENOENT, Errno::EINVAL) do
Class.new(IO).binread("|#{EnvUtil.rubybin} -e puts")
end
assert_raise(Errno::ESPIPE) do
IO.read("|echo foo", 1, 1)
end
end
def test_reopen
make_tempfile {|t|
open(__FILE__) do |f|
f.gets
assert_nothing_raised {
f.reopen(t.path)
assert_equal("foo\n", f.gets)
}
end
open(__FILE__) do |f|
f.gets
f2 = open(t.path)
begin
f2.gets
assert_nothing_raised {
f.reopen(f2)
assert_equal("bar\n", f.gets, '[ruby-core:24240]')
}
ensure
f2.close
end
end
open(__FILE__) do |f|
f2 = open(t.path)
begin
f.reopen(f2)
assert_equal("foo\n", f.gets)
assert_equal("bar\n", f.gets)
f.reopen(f2)
assert_equal("baz\n", f.gets, '[ruby-dev:39479]')
ensure
f2.close
end
end
}
end
def test_reopen_inherit
mkcdtmpdir {
system(EnvUtil.rubybin, '-e', <<-"End")
f = open("out", "w")
STDOUT.reopen(f)
STDERR.reopen(f)
system(#{EnvUtil.rubybin.dump}, '-e', 'STDOUT.print "out"')
system(#{EnvUtil.rubybin.dump}, '-e', 'STDERR.print "err"')
End
assert_equal("outerr", File.read("out"))
}
end
def test_reopen_stdio
mkcdtmpdir {
fname = 'bug11319'
File.write(fname, 'hello')
system(EnvUtil.rubybin, '-e', "STDOUT.reopen('#{fname}', 'w+')")
assert_equal('', File.read(fname))
}
end
def test_reopen_mode
feature7067 = '[ruby-core:47694]'
make_tempfile {|t|
open(__FILE__) do |f|
assert_nothing_raised {
f.reopen(t.path, "r")
assert_equal("foo\n", f.gets)
}
end
open(__FILE__) do |f|
assert_nothing_raised(feature7067) {
f.reopen(t.path, File::RDONLY)
assert_equal("foo\n", f.gets)
}
end
}
end
def test_reopen_opt
feature7103 = '[ruby-core:47806]'
make_tempfile {|t|
open(__FILE__) do |f|
assert_nothing_raised(feature7103) {
f.reopen(t.path, "r", binmode: true)
}
assert_equal("foo\n", f.gets)
end
open(__FILE__) do |f|
assert_nothing_raised(feature7103) {
f.reopen(t.path, autoclose: false)
}
assert_equal("foo\n", f.gets)
end
}
end
def make_tempfile_for_encoding
t = make_tempfile
open(t.path, "rb+:utf-8") {|f| f.puts "\u7d05\u7389bar\n"}
if block_given?
yield t
else
t
end
ensure
t&.close(true) if block_given?
end
def test_reopen_encoding
make_tempfile_for_encoding {|t|
open(__FILE__) {|f|
f.reopen(t.path, "r:utf-8")
s = f.gets
assert_equal(Encoding::UTF_8, s.encoding)
assert_equal("\u7d05\u7389bar\n", s)
}
open(__FILE__) {|f|
f.reopen(t.path, "r:UTF-8:EUC-JP")
s = f.gets
assert_equal(Encoding::EUC_JP, s.encoding)
assert_equal("\xB9\xC8\xB6\xCCbar\n".force_encoding(Encoding::EUC_JP), s)
}
}
end
def test_reopen_opt_encoding
feature7103 = '[ruby-core:47806]'
make_tempfile_for_encoding {|t|
open(__FILE__) {|f|
assert_nothing_raised(feature7103) {f.reopen(t.path, encoding: "ASCII-8BIT")}
s = f.gets
assert_equal(Encoding::ASCII_8BIT, s.encoding)
assert_equal("\xe7\xb4\x85\xe7\x8e\x89bar\n", s)
}
open(__FILE__) {|f|
assert_nothing_raised(feature7103) {f.reopen(t.path, encoding: "UTF-8:EUC-JP")}
s = f.gets
assert_equal(Encoding::EUC_JP, s.encoding)
assert_equal("\xB9\xC8\xB6\xCCbar\n".force_encoding(Encoding::EUC_JP), s)
}
}
end
bug11320 = '[ruby-core:69780] [Bug #11320]'
["UTF-8", "EUC-JP", "Shift_JIS"].each do |enc|
define_method("test_reopen_nonascii(#{enc})") do
mkcdtmpdir do
fname = "\u{30eb 30d3 30fc}".encode(enc)
File.write(fname, '')
assert_file.exist?(fname)
stdin = $stdin.dup
begin
assert_nothing_raised(Errno::ENOENT, "#{bug11320}: #{enc}") {
$stdin.reopen(fname, 'r')
}
ensure
$stdin.reopen(stdin)
stdin.close
end
end
end
end
def test_foreach
a = []
IO.foreach("|" + EnvUtil.rubybin + " -e 'puts :foo; puts :bar; puts :baz'") {|x| a << x }
assert_equal(["foo\n", "bar\n", "baz\n"], a)
a = []
IO.foreach("|" + EnvUtil.rubybin + " -e 'puts :zot'", :open_args => ["r"]) {|x| a << x }
assert_equal(["zot\n"], a)
make_tempfile {|t|
a = []
IO.foreach(t.path) {|x| a << x }
assert_equal(["foo\n", "bar\n", "baz\n"], a)
a = []
IO.foreach(t.path, {:mode => "r" }) {|x| a << x }
assert_equal(["foo\n", "bar\n", "baz\n"], a)
a = []
IO.foreach(t.path, {:open_args => [] }) {|x| a << x }
assert_equal(["foo\n", "bar\n", "baz\n"], a)
a = []
IO.foreach(t.path, {:open_args => ["r"] }) {|x| a << x }
assert_equal(["foo\n", "bar\n", "baz\n"], a)
a = []
IO.foreach(t.path, "b") {|x| a << x }
assert_equal(["foo\nb", "ar\nb", "az\n"], a)
a = []
IO.foreach(t.path, 3) {|x| a << x }
assert_equal(["foo", "\n", "bar", "\n", "baz", "\n"], a)
a = []
IO.foreach(t.path, "b", 3) {|x| a << x }
assert_equal(["foo", "\nb", "ar\n", "b", "az\n"], a)
bug = '[ruby-dev:31525]'
assert_raise(ArgumentError, bug) {IO.foreach}
a = nil
assert_nothing_raised(ArgumentError, bug) {a = IO.foreach(t.path).to_a}
assert_equal(["foo\n", "bar\n", "baz\n"], a, bug)
bug6054 = '[ruby-dev:45267]'
assert_raise_with_message(IOError, /not opened for reading/, bug6054) do
IO.foreach(t.path, mode:"w").next
end
}
end
def test_s_readlines
make_tempfile {|t|
assert_equal(["foo\n", "bar\n", "baz\n"], IO.readlines(t.path))
assert_equal(["foo\nb", "ar\nb", "az\n"], IO.readlines(t.path, "b"))
assert_equal(["fo", "o\n", "ba", "r\n", "ba", "z\n"], IO.readlines(t.path, 2))
assert_equal(["fo", "o\n", "b", "ar", "\nb", "az", "\n"], IO.readlines(t.path, "b", 2))
}
end
def test_printf
pipe(proc do |w|
printf(w, "foo %s baz\n", "bar")
w.close_write
end, proc do |r|
assert_equal("foo bar baz\n", r.read)
end)
end
def test_print
make_tempfile {|t|
assert_in_out_err(["-", t.path],
"print while $<.gets",
%w(foo bar baz), [])
}
end
def test_print_separators
EnvUtil.suppress_warning {$, = ':'}
$\ = "\n"
pipe(proc do |w|
w.print('a')
w.print('a','b','c')
w.close
end, proc do |r|
assert_equal("a\n", r.gets)
assert_equal("a:b:c\n", r.gets)
assert_nil r.gets
r.close
end)
ensure
$, = nil
$\ = nil
end
def test_putc
pipe(proc do |w|
w.putc "A"
w.putc "BC"
w.putc 68
w.close_write
end, proc do |r|
assert_equal("ABD", r.read)
end)
assert_in_out_err([], "putc 65", %w(A), [])
end
def test_puts_recursive_array
a = ["foo"]
a << a
pipe(proc do |w|
w.puts a
w.close
end, proc do |r|
assert_equal("foo\n[...]\n", r.read)
end)
end
def test_puts_parallel
skip "not portable"
pipe(proc do |w|
threads = []
100.times do
threads << Thread.new { w.puts "hey" }
end
threads.each(&:join)
w.close
end, proc do |r|
assert_equal("hey\n" * 100, r.read)
end)
end
def test_puts_old_write
capture = String.new
def capture.write(str)
self << str
end
capture.clear
assert_warning(/[.#]write is outdated/) do
stdout, $stdout = $stdout, capture
puts "hey"
ensure
$stdout = stdout
end
assert_equal("hey\n", capture)
end
def test_display
pipe(proc do |w|
"foo".display(w)
w.close
end, proc do |r|
assert_equal("foo", r.read)
end)
assert_in_out_err([], "'foo'.display", %w(foo), [])
end
def test_set_stdout
assert_raise(TypeError) { $> = Object.new }
assert_in_out_err([], "$> = $stderr\nputs 'foo'", [], %w(foo))
assert_separately(%w[-Eutf-8], "#{<<~"begin;"}\n#{<<~"end;"}")
begin;
alias $\u{6a19 6e96 51fa 529b} $stdout
x = eval("class X\u{307b 3052}; self; end".encode("euc-jp"))
assert_raise_with_message(TypeError, /\\$\u{6a19 6e96 51fa 529b} must.*, X\u{307b 3052} given/) do
$\u{6a19 6e96 51fa 529b} = x.new
end
end;
end
def test_initialize
return unless defined?(Fcntl::F_GETFL)
make_tempfile {|t|
fd = IO.sysopen(t.path, "w")
assert_kind_of(Integer, fd)
%w[r r+ w+ a+].each do |mode|
assert_raise(Errno::EINVAL, "#{mode} [ruby-dev:38571]") {IO.new(fd, mode)}
end
f = IO.new(fd, "w")
f.write("FOO\n")
f.close
assert_equal("FOO\n", File.read(t.path))
}
end
def test_reinitialize
make_tempfile {|t|
f = open(t.path)
begin
assert_raise(RuntimeError) do
f.instance_eval { initialize }
end
ensure
f.close
end
}
end
def test_new_with_block
assert_in_out_err([], "r, w = IO.pipe; r.autoclose=false; IO.new(r.fileno) {}.close", [], /^.+$/)
n = "IO\u{5165 51fa 529b}"
c = eval("class #{n} < IO; self; end")
IO.pipe do |r, w|
assert_warning(/#{n}/) {
r.autoclose=false
io = c.new(r.fileno) {}
io.close
}
end
end
def test_readline2
assert_in_out_err(["-e", <<-SRC], "foo\nbar\nbaz\n", %w(foo bar baz end), [])
puts readline
puts readline
puts readline
begin
puts readline
rescue EOFError
puts "end"
end
SRC
end
def test_readlines
assert_in_out_err(["-e", "p readlines"], "foo\nbar\nbaz\n",
["[\"foo\\n\", \"bar\\n\", \"baz\\n\"]"], [])
end
def test_s_read
make_tempfile {|t|
assert_equal("foo\nbar\nbaz\n", File.read(t.path))
assert_equal("foo\nba", File.read(t.path, 6))
assert_equal("bar\n", File.read(t.path, 4, 4))
}
end
def test_uninitialized
assert_raise(IOError) { IO.allocate.print "" }
end
def test_nofollow
# O_NOFOLLOW is not standard.
mkcdtmpdir {
open("file", "w") {|f| f << "content" }
begin
File.symlink("file", "slnk")
rescue NotImplementedError
return
end
assert_raise(Errno::EMLINK, Errno::ELOOP) {
open("slnk", File::RDONLY|File::NOFOLLOW) {}
}
assert_raise(Errno::EMLINK, Errno::ELOOP) {
File.foreach("slnk", :open_args=>[File::RDONLY|File::NOFOLLOW]) {}
}
}
end if /freebsd|linux/ =~ RUBY_PLATFORM and defined? File::NOFOLLOW
def test_tainted
make_tempfile {|t|
assert_predicate(File.read(t.path, 4), :tainted?, '[ruby-dev:38826]')
assert_predicate(File.open(t.path) {|f| f.read(4)}, :tainted?, '[ruby-dev:38826]')
}
end
def test_binmode_after_closed
make_tempfile {|t|
assert_raise(IOError) {t.binmode}
}
end
def test_DATA_binmode
assert_separately([], <<-SRC)
assert_not_predicate(DATA, :binmode?)
__END__
SRC
end
def test_threaded_flush
bug3585 = '[ruby-core:31348]'
src = "#{<<~"begin;"}\n#{<<~'end;'}"
begin;
t = Thread.new { sleep 3 }
Thread.new {sleep 1; t.kill; p 'hi!'}
t.join
end;
10.times.map do
Thread.start do
assert_in_out_err([], src, timeout: 20) {|stdout, stderr|
assert_no_match(/hi.*hi/, stderr.join, bug3585)
}
end
end.each {|th| th.join}
end
def test_flush_in_finalizer1
bug3910 = '[ruby-dev:42341]'
tmp = Tempfile.open("bug3910") {|t|
path = t.path
t.close
fds = []
assert_nothing_raised(TypeError, bug3910) do
500.times {
f = File.open(path, "w")
f.instance_variable_set(:@test_flush_in_finalizer1, true)
fds << f.fileno
f.print "hoge"
}
end
t
}
ensure
ObjectSpace.each_object(File) {|f|
if f.instance_variables.include?(:@test_flush_in_finalizer1)
f.close
end
}
tmp.close!
end
def test_flush_in_finalizer2
bug3910 = '[ruby-dev:42341]'
Tempfile.open("bug3910") {|t|
path = t.path
t.close
begin
1.times do
io = open(path,"w")
io.instance_variable_set(:@test_flush_in_finalizer2, true)
io.print "hoge"
end
assert_nothing_raised(TypeError, bug3910) do
GC.start
end
ensure
ObjectSpace.each_object(File) {|f|
if f.instance_variables.include?(:@test_flush_in_finalizer2)
f.close
end
}
end
t.close!
}
end
def test_readlines_limit_0
bug4024 = '[ruby-dev:42538]'
make_tempfile {|t|
open(t.path, "r") do |io|
assert_raise(ArgumentError, bug4024) do
io.readlines(0)
end
end
}
end
def test_each_line_limit_0
bug4024 = '[ruby-dev:42538]'
make_tempfile {|t|
open(t.path, "r") do |io|
assert_raise(ArgumentError, bug4024) do
io.each_line(0).next
end
end
}
end
def os_and_fs(path)
uname = Etc.uname
os = "#{uname[:sysname]} #{uname[:release]}"
fs = nil
if uname[:sysname] == 'Linux'
# [ruby-dev:45703] Old Linux's fadvise() doesn't work on tmpfs.
mount = `mount`
mountpoints = []
mount.scan(/ on (\S+) type (\S+) /) {
mountpoints << [$1, $2]
}
mountpoints.sort_by {|mountpoint, fstype| mountpoint.length }.reverse_each {|mountpoint, fstype|
if path == mountpoint
fs = fstype
break
end
mountpoint += "/" if %r{/\z} !~ mountpoint
if path.start_with?(mountpoint)
fs = fstype
break
end
}
end
if fs
"#{fs} on #{os}"
else
os
end
end
def test_advise
make_tempfile {|tf|
assert_raise(ArgumentError, "no arguments") { tf.advise }
%w{normal random sequential willneed dontneed noreuse}.map(&:to_sym).each do |adv|
[[0,0], [0, 20], [400, 2]].each do |offset, len|
open(tf.path) do |t|
ret = assert_nothing_raised(lambda { os_and_fs(tf.path) }) {
begin
t.advise(adv, offset, len)
rescue Errno::EINVAL => e
if /linux/ =~ RUBY_PLATFORM && (Etc.uname[:release].split('.').map(&:to_i) <=> [3,6]) < 0
next # [ruby-core:65355] tmpfs is not supported
else
raise e
end
end
}
assert_nil(ret)
assert_raise(ArgumentError, "superfluous arguments") do
t.advise(adv, offset, len, offset)
end
assert_raise(TypeError, "wrong type for first argument") do
t.advise(adv.to_s, offset, len)
end
assert_raise(TypeError, "wrong type for last argument") do
t.advise(adv, offset, Array(len))
end
assert_raise(RangeError, "last argument too big") do
t.advise(adv, offset, 9999e99)
end
end
assert_raise(IOError, "closed file") do
make_tempfile {|tf2|
tf2.advise(adv.to_sym, offset, len)
}
end
end
end
}
end
def test_invalid_advise
feature4204 = '[ruby-dev:42887]'
make_tempfile {|tf|
%W{Normal rand glark will_need zzzzzzzzzzzz \u2609}.map(&:to_sym).each do |adv|
[[0,0], [0, 20], [400, 2]].each do |offset, len|
open(tf.path) do |t|
assert_raise_with_message(NotImplementedError, /#{Regexp.quote(adv.inspect)}/, feature4204) { t.advise(adv, offset, len) }
end
end
end
}
end
def test_fcntl_lock_linux
pad = 0
Tempfile.create(self.class.name) do |f|
r, w = IO.pipe
pid = fork do
r.close
lock = [Fcntl::F_WRLCK, IO::SEEK_SET, pad, 12, 34, 0].pack("s!s!i!L!L!i!")
f.fcntl Fcntl::F_SETLKW, lock
w.syswrite "."
sleep
end
w.close
assert_equal ".", r.read(1)
r.close
pad = 0
getlock = [Fcntl::F_WRLCK, 0, pad, 0, 0, 0].pack("s!s!i!L!L!i!")
f.fcntl Fcntl::F_GETLK, getlock
ptype, whence, pad, start, len, lockpid = getlock.unpack("s!s!i!L!L!i!")
assert_equal(ptype, Fcntl::F_WRLCK)
assert_equal(whence, IO::SEEK_SET)
assert_equal(start, 12)
assert_equal(len, 34)
assert_equal(pid, lockpid)
Process.kill :TERM, pid
Process.waitpid2(pid)
end
end if /x86_64-linux/ =~ RUBY_PLATFORM and # A binary form of struct flock depend on platform
[nil].pack("p").bytesize == 8 # unless x32 platform.
def test_fcntl_lock_freebsd
start = 12
len = 34
sysid = 0
Tempfile.create(self.class.name) do |f|
r, w = IO.pipe
pid = fork do
r.close
lock = [start, len, 0, Fcntl::F_WRLCK, IO::SEEK_SET, sysid].pack("qqis!s!i!")
f.fcntl Fcntl::F_SETLKW, lock
w.syswrite "."
sleep
end
w.close
assert_equal ".", r.read(1)
r.close
getlock = [0, 0, 0, Fcntl::F_WRLCK, 0, 0].pack("qqis!s!i!")
f.fcntl Fcntl::F_GETLK, getlock
start, len, lockpid, ptype, whence, sysid = getlock.unpack("qqis!s!i!")
assert_equal(ptype, Fcntl::F_WRLCK)
assert_equal(whence, IO::SEEK_SET)
assert_equal(start, 12)
assert_equal(len, 34)
assert_equal(pid, lockpid)
Process.kill :TERM, pid
Process.waitpid2(pid)
end
end if /freebsd/ =~ RUBY_PLATFORM # A binary form of struct flock depend on platform
def test_fcntl_dupfd
Tempfile.create(self.class.name) do |f|
fd = f.fcntl(Fcntl::F_DUPFD, 63)
begin
assert_operator(fd, :>=, 63)
ensure
IO.for_fd(fd).close
end
end
end
def test_cross_thread_close_fd
with_pipe do |r,w|
read_thread = Thread.new do
begin
r.read(1)
rescue => e
e
end
end
sleep(0.1) until read_thread.stop?
r.close
read_thread.join
assert_kind_of(IOError, read_thread.value)
end
end
def test_cross_thread_close_stdio
assert_separately([], <<-'end;')
IO.pipe do |r,w|
$stdin.reopen(r)
r.close
read_thread = Thread.new do
begin
$stdin.read(1)
rescue IOError => e
e
end
end
sleep(0.1) until read_thread.stop?
$stdin.close
assert_kind_of(IOError, read_thread.value)
end
end;
end
def test_single_exception_on_close
a = []
t = []
10.times do
r, w = IO.pipe
a << [r, w]
t << Thread.new do
while r.gets
end rescue IOError
Thread.current.pending_interrupt?
end
end
a.each do |r, w|
w.write(-"\n")
w.close
r.close
end
t.each do |th|
assert_equal false, th.value, '[ruby-core:81581] [Bug #13632]'
end
end
def test_open_mode
feature4742 = "[ruby-core:36338]"
bug6055 = '[ruby-dev:45268]'
mkcdtmpdir do
assert_not_nil(f = File.open('symbolic', 'w'))
f.close
assert_not_nil(f = File.open('numeric', File::WRONLY|File::TRUNC|File::CREAT))
f.close
assert_not_nil(f = File.open('hash-symbolic', :mode => 'w'))
f.close
assert_not_nil(f = File.open('hash-numeric', :mode => File::WRONLY|File::TRUNC|File::CREAT), feature4742)
f.close
assert_nothing_raised(bug6055) {f = File.open('hash-symbolic', binmode: true)}
f.close
end
end
def test_s_write
mkcdtmpdir do
path = "test_s_write"
File.write(path, "foo\nbar\nbaz")
assert_equal("foo\nbar\nbaz", File.read(path))
File.write(path, "FOO", 0)
assert_equal("FOO\nbar\nbaz", File.read(path))
File.write(path, "BAR")
assert_equal("BAR", File.read(path))
File.write(path, "\u{3042}", mode: "w", encoding: "EUC-JP")
assert_equal("\u{3042}".encode("EUC-JP"), File.read(path, encoding: "EUC-JP"))
File.delete path
assert_equal(6, File.write(path, 'string', 2))
File.delete path
assert_raise(Errno::EINVAL) { File.write('nonexisting','string', -2) }
assert_equal(6, File.write(path, 'string'))
assert_equal(3, File.write(path, 'sub', 1))
assert_equal("ssubng", File.read(path))
File.delete path
assert_equal(3, File.write(path, "foo", encoding: "UTF-8"))
File.delete path
assert_equal(3, File.write(path, "foo", 0, encoding: "UTF-8"))
assert_equal("foo", File.read(path))
assert_equal(1, File.write(path, "f", 1, encoding: "UTF-8"))
assert_equal("ffo", File.read(path))
File.delete path
assert_equal(1, File.write(path, "f", 1, encoding: "UTF-8"))
assert_equal("\00f", File.read(path))
assert_equal(1, File.write(path, "f", 0, encoding: "UTF-8"))
assert_equal("ff", File.read(path))
assert_raise(TypeError) {
File.write(path, "foo", Object.new => Object.new)
}
end
end
def test_s_binread_does_not_leak_with_invalid_offset
assert_raise(Errno::EINVAL) { IO.binread(__FILE__, 0, -1) }
end
def test_s_binwrite
mkcdtmpdir do
path = "test_s_binwrite"
File.binwrite(path, "foo\nbar\nbaz")
assert_equal("foo\nbar\nbaz", File.read(path))
File.binwrite(path, "FOO", 0)
assert_equal("FOO\nbar\nbaz", File.read(path))
File.binwrite(path, "BAR")
assert_equal("BAR", File.read(path))
File.binwrite(path, "\u{3042}")
assert_equal("\u{3042}".force_encoding("ASCII-8BIT"), File.binread(path))
File.delete path
assert_equal(6, File.binwrite(path, 'string', 2))
File.delete path
assert_equal(6, File.binwrite(path, 'string'))
assert_equal(3, File.binwrite(path, 'sub', 1))
assert_equal("ssubng", File.binread(path))
assert_equal(6, File.size(path))
assert_raise(Errno::EINVAL) { File.binwrite('nonexisting', 'string', -2) }
assert_nothing_raised(TypeError) { File.binwrite(path, "string", mode: "w", encoding: "EUC-JP") }
end
end
def test_race_between_read
Tempfile.create("test") {|file|
begin
path = file.path
file.close
write_file = File.open(path, "wt")
read_file = File.open(path, "rt")
threads = []
10.times do |i|
threads << Thread.new {write_file.print(i)}
threads << Thread.new {read_file.read}
end
assert_join_threads(threads)
assert(true, "[ruby-core:37197]")
ensure
read_file.close
write_file.close
end
}
end
def test_warn
assert_warning "warning\n" do
warn "warning"
end
assert_warning '' do
warn
end
assert_warning "[Feature #5029]\n[ruby-core:38070]\n" do
warn "[Feature #5029]", "[ruby-core:38070]"
end
end
def test_cloexec
return unless defined? Fcntl::FD_CLOEXEC
open(__FILE__) {|f|
assert_predicate(f, :close_on_exec?)
g = f.dup
begin
assert_predicate(g, :close_on_exec?)
f.reopen(g)
assert_predicate(f, :close_on_exec?)
ensure
g.close
end
g = IO.new(f.fcntl(Fcntl::F_DUPFD))
begin
assert_predicate(g, :close_on_exec?)
ensure
g.close
end
}
IO.pipe {|r,w|
assert_predicate(r, :close_on_exec?)
assert_predicate(w, :close_on_exec?)
}
end
def test_ioctl_linux
# Alpha, mips, sparc and ppc have an another ioctl request number scheme.
# So, hardcoded 0x80045200 may fail.
assert_nothing_raised do
File.open('/dev/urandom'){|f1|
entropy_count = ""
# RNDGETENTCNT(0x80045200) mean "get entropy count".
f1.ioctl(0x80045200, entropy_count)
}
end
buf = ''
assert_nothing_raised do
fionread = 0x541B
File.open(__FILE__){|f1|
f1.ioctl(fionread, buf)
}
end
assert_equal(File.size(__FILE__), buf.unpack('i!')[0])
end if /^(?:i.?86|x86_64)-linux/ =~ RUBY_PLATFORM
def test_ioctl_linux2
return unless STDIN.tty? # stdin is not a terminal
begin
f = File.open('/dev/tty')
rescue Errno::ENOENT, Errno::ENXIO => e
skip e.message
else
tiocgwinsz=0x5413
winsize=""
assert_nothing_raised {
f.ioctl(tiocgwinsz, winsize)
}
ensure
f&.close
end
end if /^(?:i.?86|x86_64)-linux/ =~ RUBY_PLATFORM
def test_setpos
mkcdtmpdir {
File.open("tmp.txt", "wb") {|f|
f.puts "a"
f.puts "bc"
f.puts "def"
}
pos1 = pos2 = pos3 = nil
File.open("tmp.txt", "rb") {|f|
assert_equal("a\n", f.gets)
pos1 = f.pos
assert_equal("bc\n", f.gets)
pos2 = f.pos
assert_equal("def\n", f.gets)
pos3 = f.pos
assert_equal(nil, f.gets)
}
File.open("tmp.txt", "rb") {|f|
f.pos = pos1
assert_equal("bc\n", f.gets)
assert_equal("def\n", f.gets)
assert_equal(nil, f.gets)
}
File.open("tmp.txt", "rb") {|f|
f.pos = pos2
assert_equal("def\n", f.gets)
assert_equal(nil, f.gets)
}
File.open("tmp.txt", "rb") {|f|
f.pos = pos3
assert_equal(nil, f.gets)
}
File.open("tmp.txt", "rb") {|f|
f.pos = File.size("tmp.txt")
s = "not empty string "
assert_equal("", f.read(0,s))
}
}
end
def test_std_fileno
assert_equal(0, STDIN.fileno)
assert_equal(1, STDOUT.fileno)
assert_equal(2, STDERR.fileno)
assert_equal(0, $stdin.fileno)
assert_equal(1, $stdout.fileno)
assert_equal(2, $stderr.fileno)
end
def test_frozen_fileno
bug9865 = '[ruby-dev:48241] [Bug #9865]'
with_pipe do |r,w|
fd = r.fileno
assert_equal(fd, r.freeze.fileno, bug9865)
end
end
def test_frozen_autoclose
with_pipe do |r,w|
assert_equal(true, r.freeze.autoclose?)
end
end
def test_sysread_locktmp
bug6099 = '[ruby-dev:45297]'
buf = " " * 100
data = "a" * 100
with_pipe do |r,w|
th = Thread.new {r.sysread(100, buf)}
Thread.pass until th.stop?
buf.replace("")
assert_empty(buf, bug6099)
w.write(data)
Thread.pass while th.alive?
th.join
end
assert_equal(data, buf, bug6099)
end
def test_readpartial_locktmp
bug6099 = '[ruby-dev:45297]'
buf = " " * 100
data = "a" * 100
th = nil
with_pipe do |r,w|
r.nonblock = true
th = Thread.new {r.readpartial(100, buf)}
Thread.pass until th.stop?
assert_equal 100, buf.bytesize
msg = /can't modify string; temporarily locked/
assert_raise_with_message(RuntimeError, msg) do
buf.replace("")
end
assert_predicate(th, :alive?)
w.write(data)
th.join
end
assert_equal(data, buf, bug6099)
end
def test_advise_pipe
# we don't know if other platforms have a real posix_fadvise()
with_pipe do |r,w|
# Linux 2.6.15 and earlier returned EINVAL instead of ESPIPE
assert_raise(Errno::ESPIPE, Errno::EINVAL) {
r.advise(:willneed) or skip "fadvise(2) is not implemented"
}
assert_raise(Errno::ESPIPE, Errno::EINVAL) {
w.advise(:willneed) or skip "fadvise(2) is not implemented"
}
end
end if /linux/ =~ RUBY_PLATFORM
def assert_buffer_not_raise_shared_string_error
bug6764 = '[ruby-core:46586]'
bug9847 = '[ruby-core:62643] [Bug #9847]'
size = 28
data = [*"a".."z", *"A".."Z"].shuffle.join("")
t = Tempfile.new("test_io")
t.write(data)
t.close
w = []
assert_nothing_raised(RuntimeError, bug6764) do
buf = ''
File.open(t.path, "r") do |r|
while yield(r, size, buf)
w << buf.dup
end
end
end
assert_equal(data, w.join(""), bug9847)
ensure
t.close!
end
def test_read_buffer_not_raise_shared_string_error
assert_buffer_not_raise_shared_string_error do |r, size, buf|
r.read(size, buf)
end
end
def test_sysread_buffer_not_raise_shared_string_error
assert_buffer_not_raise_shared_string_error do |r, size, buf|
begin
r.sysread(size, buf)
rescue EOFError
nil
end
end
end
def test_readpartial_buffer_not_raise_shared_string_error
assert_buffer_not_raise_shared_string_error do |r, size, buf|
begin
r.readpartial(size, buf)
rescue EOFError
nil
end
end
end
def test_puts_recursive_ary
bug5986 = '[ruby-core:42444]'
c = Class.new {
def to_ary
[self]
end
}
s = StringIO.new
s.puts(c.new)
assert_equal("[...]\n", s.string, bug5986)
end
def test_io_select_with_many_files
bug8080 = '[ruby-core:53349]'
assert_normal_exit %q{
require "tempfile"
# Unfortunately, ruby doesn't export FD_SETSIZE. then we assume it's 1024.
fd_setsize = 1024
# try to raise RLIM_NOFILE to >FD_SETSIZE
begin
Process.setrlimit(Process::RLIMIT_NOFILE, fd_setsize+20)
rescue Errno::EPERM
exit 0
end
tempfiles = []
(0..fd_setsize+1).map {|i|
tempfiles << Tempfile.open("test_io_select_with_many_files")
}
IO.select(tempfiles)
}, bug8080, timeout: 100
end if defined?(Process::RLIMIT_NOFILE)
def test_read_32bit_boundary
bug8431 = '[ruby-core:55098] [Bug #8431]'
make_tempfile {|t|
assert_separately(["-", bug8431, t.path], <<-"end;")
msg = ARGV.shift
f = open(ARGV[0], "rb")
f.seek(0xffff_ffff)
assert_nil(f.read(1), msg)
end;
}
end if /mswin|mingw/ =~ RUBY_PLATFORM
def test_write_32bit_boundary
bug8431 = '[ruby-core:55098] [Bug #8431]'
make_tempfile {|t|
def t.close(unlink_now = false)
# TODO: Tempfile should deal with this delay on Windows?
# NOTE: re-opening with O_TEMPORARY does not work.
path = self.path
ret = super
if unlink_now
begin
File.unlink(path)
rescue Errno::ENOENT
rescue Errno::EACCES
sleep(2)
retry
end
end
ret
end
begin
assert_separately(["-", bug8431, t.path], <<-"end;", timeout: 30)
msg = ARGV.shift
f = open(ARGV[0], "wb")
f.seek(0xffff_ffff)
begin
# this will consume very long time or fail by ENOSPC on a
# filesystem which sparse file is not supported
f.write('1')
pos = f.tell
rescue Errno::ENOSPC
skip "non-sparse file system"
rescue SystemCallError
else
assert_equal(0x1_0000_0000, pos, msg)
end
end;
rescue Timeout::Error
skip "Timeout because of slow file writing"
end
}
end if /mswin|mingw/ =~ RUBY_PLATFORM
def test_read_unlocktmp_ensure
bug8669 = '[ruby-core:56121] [Bug #8669]'
str = ""
IO.pipe {|r,|
t = Thread.new {
assert_raise(RuntimeError) {
r.read(nil, str)
}
}
sleep 0.1 until t.stop?
t.raise
sleep 0.1 while t.alive?
assert_nothing_raised(RuntimeError, bug8669) { str.clear }
t.join
}
end if /cygwin/ !~ RUBY_PLATFORM
def test_readpartial_unlocktmp_ensure
bug8669 = '[ruby-core:56121] [Bug #8669]'
str = ""
IO.pipe {|r, w|
t = Thread.new {
assert_raise(RuntimeError) {
r.readpartial(4096, str)
}
}
sleep 0.1 until t.stop?
t.raise
sleep 0.1 while t.alive?
assert_nothing_raised(RuntimeError, bug8669) { str.clear }
t.join
}
end if /cygwin/ !~ RUBY_PLATFORM
def test_readpartial_bad_args
IO.pipe do |r, w|
w.write '.'
buf = String.new
assert_raise(ArgumentError) { r.readpartial(1, buf, exception: false) }
assert_raise(TypeError) { r.readpartial(1, exception: false) }
assert_equal [[r],[],[]], IO.select([r], nil, nil, 1)
assert_equal '.', r.readpartial(1)
end
end
def test_sysread_unlocktmp_ensure
bug8669 = '[ruby-core:56121] [Bug #8669]'
str = ""
IO.pipe {|r, w|
t = Thread.new {
assert_raise(RuntimeError) {
r.sysread(4096, str)
}
}
sleep 0.1 until t.stop?
t.raise
sleep 0.1 while t.alive?
assert_nothing_raised(RuntimeError, bug8669) { str.clear }
t.join
}
end if /cygwin/ !~ RUBY_PLATFORM
def test_exception_at_close
bug10153 = '[ruby-core:64463] [Bug #10153] exception in close at the end of block'
assert_raise(Errno::EBADF, bug10153) do
IO.pipe do |r, w|
assert_nothing_raised {IO.open(w.fileno) {}}
end
end
end
def test_close_twice
open(__FILE__) {|f|
assert_equal(nil, f.close)
assert_equal(nil, f.close)
}
end
def test_close_uninitialized
io = IO.allocate
assert_raise(IOError) { io.close }
end
def test_open_fifo_does_not_block_other_threads
mkcdtmpdir {
File.mkfifo("fifo")
assert_separately([], <<-'EOS')
t1 = Thread.new {
open("fifo", "r") {|r|
r.read
}
}
t2 = Thread.new {
open("fifo", "w") {|w|
w.write "foo"
}
}
t1_value, _ = assert_join_threads([t1, t2])
assert_equal("foo", t1_value)
EOS
}
end if /mswin|mingw|bccwin|cygwin/ !~ RUBY_PLATFORM
def test_open_flag
make_tempfile do |t|
assert_raise(Errno::EEXIST){ open(t.path, File::WRONLY|File::CREAT, flags: File::EXCL){} }
assert_raise(Errno::EEXIST){ open(t.path, 'w', flags: File::EXCL){} }
assert_raise(Errno::EEXIST){ open(t.path, mode: 'w', flags: File::EXCL){} }
end
end
def test_open_flag_binary
make_tempfile do |t|
open(t.path, File::RDONLY, flags: File::BINARY) do |f|
assert_equal true, f.binmode?
end
open(t.path, 'r', flags: File::BINARY) do |f|
assert_equal true, f.binmode?
end
open(t.path, mode: 'r', flags: File::BINARY) do |f|
assert_equal true, f.binmode?
end
end
end if File::BINARY != 0
def test_exclusive_mode
make_tempfile do |t|
assert_raise(Errno::EEXIST){ open(t.path, 'wx'){} }
assert_raise(ArgumentError){ open(t.path, 'rx'){} }
assert_raise(ArgumentError){ open(t.path, 'ax'){} }
end
end
def test_race_gets_and_close
opt = { signal: :ABRT, timeout: 200 }
assert_separately([], "#{<<-"begin;"}\n#{<<-"end;"}", opt)
bug13076 = '[ruby-core:78845] [Bug #13076]'
begin;
10.times do |i|
a = []
t = []
10.times do
r,w = IO.pipe
a << [r,w]
t << Thread.new do
begin
while r.gets
end
rescue IOError
end
end
end
a.each do |r,w|
w.puts "hoge"
w.close
r.close
end
t.each do |th|
assert_same(th, th.join(2), bug13076)
end
end
end;
end
def test_race_closed_stream
assert_separately([], "#{<<-"begin;"}\n#{<<-"end;"}")
begin;
bug13158 = '[ruby-core:79262] [Bug #13158]'
closed = nil
q = Queue.new
IO.pipe do |r, w|
thread = Thread.new do
begin
q << true
assert_raise_with_message(IOError, /stream closed/) do
while r.gets
end
end
ensure
closed = r.closed?
end
end
q.pop
sleep 0.01 until thread.stop?
r.close
thread.join
assert_equal(true, closed, bug13158 + ': stream should be closed')
end
end;
end
if RUBY_ENGINE == "ruby" # implementation details
def test_foreach_rs_conversion
make_tempfile {|t|
a = []
rs = Struct.new(:count).new(0)
def rs.to_str; self.count += 1; "\n"; end
IO.foreach(t.path, rs) {|x| a << x }
assert_equal(["foo\n", "bar\n", "baz\n"], a)
assert_equal(1, rs.count)
}
end
def test_foreach_rs_invalid
make_tempfile {|t|
rs = Object.new
def rs.to_str; raise "invalid rs"; end
assert_raise(RuntimeError) do
IO.foreach(t.path, rs, mode:"w") {}
end
assert_equal(["foo\n", "bar\n", "baz\n"], IO.foreach(t.path).to_a)
}
end
def test_foreach_limit_conversion
make_tempfile {|t|
a = []
lim = Struct.new(:count).new(0)
def lim.to_int; self.count += 1; -1; end
IO.foreach(t.path, lim) {|x| a << x }
assert_equal(["foo\n", "bar\n", "baz\n"], a)
assert_equal(1, lim.count)
}
end
def test_foreach_limit_invalid
make_tempfile {|t|
lim = Object.new
def lim.to_int; raise "invalid limit"; end
assert_raise(RuntimeError) do
IO.foreach(t.path, lim, mode:"w") {}
end
assert_equal(["foo\n", "bar\n", "baz\n"], IO.foreach(t.path).to_a)
}
end
def test_readlines_rs_invalid
make_tempfile {|t|
rs = Object.new
def rs.to_str; raise "invalid rs"; end
assert_raise(RuntimeError) do
IO.readlines(t.path, rs, mode:"w")
end
assert_equal(["foo\n", "bar\n", "baz\n"], IO.readlines(t.path))
}
end
def test_readlines_limit_invalid
make_tempfile {|t|
lim = Object.new
def lim.to_int; raise "invalid limit"; end
assert_raise(RuntimeError) do
IO.readlines(t.path, lim, mode:"w")
end
assert_equal(["foo\n", "bar\n", "baz\n"], IO.readlines(t.path))
}
end
def test_closed_stream_in_rescue
assert_separately([], "#{<<-"begin;"}\n#{<<~"end;"}")
begin;
10.times do
assert_nothing_raised(RuntimeError, /frozen IOError/) do
IO.pipe do |r, w|
th = Thread.start {r.close}
r.gets
rescue IOError
# swallow pending exceptions
begin
sleep 0.001
rescue IOError
retry
end
ensure
th.kill.join
end
end
end
end;
end
def test_write_no_garbage
skip "multiple threads already active" if Thread.list.size > 1
res = {}
ObjectSpace.count_objects(res) # creates strings on first call
[ 'foo'.b, '*' * 24 ].each do |buf|
with_pipe do |r, w|
GC.disable
begin
before = ObjectSpace.count_objects(res)[:T_STRING]
n = w.write(buf)
s = w.syswrite(buf)
after = ObjectSpace.count_objects(res)[:T_STRING]
ensure
GC.enable
end
assert_equal before, after,
"no strings left over after write [ruby-core:78898] [Bug #13085]: #{ before } strings before write -> #{ after } strings after write"
assert_not_predicate buf, :frozen?, 'no inadvertent freeze'
assert_equal buf.bytesize, n, 'IO#write wrote expected size'
assert_equal s, n, 'IO#syswrite wrote expected size'
end
end
end
def test_pread
make_tempfile { |t|
open(t.path) do |f|
assert_equal("bar", f.pread(3, 4))
buf = "asdf"
assert_equal("bar", f.pread(3, 4, buf))
assert_equal("bar", buf)
assert_raise(EOFError) { f.pread(1, f.size) }
end
}
end if IO.method_defined?(:pread)
def test_pwrite
make_tempfile { |t|
open(t.path, IO::RDWR) do |f|
assert_equal(3, f.pwrite("ooo", 4))
assert_equal("ooo", f.pread(3, 4))
end
}
end if IO.method_defined?(:pread) and IO.method_defined?(:pwrite)
end
def test_select_exceptfds
if Etc.uname[:sysname] == 'SunOS' && Etc.uname[:release] == '5.11'
skip "Solaris 11 fails this"
end
TCPServer.open('localhost', 0) do |svr|
con = TCPSocket.new('localhost', svr.addr[1])
acc = svr.accept
assert_equal 5, con.send('hello', Socket::MSG_OOB)
set = IO.select(nil, nil, [acc], 30)
assert_equal([[], [], [acc]], set, 'IO#select exceptions array OK')
acc.close
con.close
end
end if Socket.const_defined?(:MSG_OOB)
def test_recycled_fd_close
dot = -'.'
IO.pipe do |sig_rd, sig_wr|
noex = Thread.new do # everything right and never see exceptions :)
until sig_rd.wait_readable(0)
IO.pipe do |r, w|
th = Thread.new { r.read(1) }
w.write(dot)
assert_same th, th.join(15), '"good" reader timeout'
assert_equal(dot, th.value)
end
end
sig_rd.read(4)
end
1000.times do |i| # stupid things and make exceptions:
IO.pipe do |r,w|
th = Thread.new do
begin
while r.gets
end
rescue IOError => e
e
end
end
Thread.pass until th.stop?
r.close
assert_same th, th.join(30), '"bad" reader timeout'
assert_match(/stream closed/, th.value.message)
end
end
sig_wr.write 'done'
assert_same noex, noex.join(20), '"good" writer timeout'
assert_equal 'done', noex.value ,'r63216'
end
end
def test_select_leak
# avoid malloc arena explosion from glibc and jemalloc:
env = {
'MALLOC_ARENA_MAX' => '1',
'MALLOC_ARENA_TEST' => '1',
'MALLOC_CONF' => 'narenas:1',
}
assert_no_memory_leak([env], <<-"end;", <<-"end;", rss: true, timeout: 60)
r, w = IO.pipe
rset = [r]
wset = [w]
exc = StandardError.new(-"select used to leak on exception")
exc.set_backtrace([])
Thread.new { IO.select(rset, wset, nil, 0) }.join
end;
th = Thread.new do
Thread.handle_interrupt(StandardError => :on_blocking) do
begin
IO.select(rset, wset)
rescue
retry
end while true
end
end
50_000.times do
Thread.pass until th.stop?
th.raise(exc)
end
th.kill
th.join
end;
end
def test_external_encoding_index
IO.pipe {|r, w|
assert_raise(TypeError) {Marshal.dump(r)}
assert_raise(TypeError) {Marshal.dump(w)}
}
end
end
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