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require 'test/unit'
require 'tmpdir'
require 'require_relative'
require_relative 'envutil'
class TestProcess < Test::Unit::TestCase
def test_rlimit_availability
begin
Process.getrlimit(nil)
rescue NotImplementedError
assert_raise(NotImplementedError) { Process.setrlimit }
rescue TypeError
assert_raise(ArgumentError) { Process.setrlimit }
end
end
def rlimit_exist?
Process.getrlimit(nil)
rescue NotImplementedError
return false
rescue TypeError
return true
end
def test_rlimit_nofile
return unless rlimit_exist?
pid = fork {
cur_nofile, max_nofile = Process.getrlimit(Process::RLIMIT_NOFILE)
result = 1
begin
Process.setrlimit(Process::RLIMIT_NOFILE, 0, max_nofile)
rescue Errno::EINVAL
result = 0
end
if result == 1
begin
IO.pipe
rescue Errno::EMFILE
result = 0
end
end
Process.setrlimit(Process::RLIMIT_NOFILE, cur_nofile, max_nofile)
exit result
}
Process.wait pid
assert_equal(0, $?.to_i, "#{$?}")
end
def test_rlimit_name
return unless rlimit_exist?
[
:AS, "AS",
:CORE, "CORE",
:CPU, "CPU",
:DATA, "DATA",
:FSIZE, "FSIZE",
:MEMLOCK, "MEMLOCK",
:NOFILE, "NOFILE",
:NPROC, "NPROC",
:RSS, "RSS",
:STACK, "STACK",
:SBSIZE, "SBSIZE",
].each {|name|
if Process.const_defined? "RLIMIT_#{name}"
assert_nothing_raised { Process.getrlimit(name) }
else
assert_raise(ArgumentError) { Process.getrlimit(name) }
end
}
assert_raise(ArgumentError) { Process.getrlimit(:FOO) }
assert_raise(ArgumentError) { Process.getrlimit("FOO") }
end
def test_rlimit_value
return unless rlimit_exist?
assert_raise(ArgumentError) { Process.setrlimit(:CORE, :FOO) }
assert_raise(Errno::EPERM) { Process.setrlimit(:NOFILE, :INFINITY) }
assert_raise(Errno::EPERM) { Process.setrlimit(:NOFILE, "INFINITY") }
end
def with_tmpchdir
Dir.mktmpdir {|d|
Dir.chdir(d) {
yield d
}
}
end
def test_execopts_opts
assert_nothing_raised {
Process.wait Process.spawn("true", {})
}
assert_raise(ArgumentError) {
Process.wait Process.spawn("true", :foo => 100)
}
assert_raise(ArgumentError) {
Process.wait Process.spawn("true", Process => 100)
}
end
def test_execopts_pgroup
ruby = EnvUtil.rubybin
assert_nothing_raised { system("true", :pgroup=>false) }
io = IO.popen([ruby, "-e", "print Process.getpgrp"])
assert_equal(Process.getpgrp.to_s, io.read)
io.close
io = IO.popen([ruby, "-e", "print Process.getpgrp", :pgroup=>true])
assert_equal(io.pid.to_s, io.read)
io.close
assert_raise(ArgumentError) { system("true", :pgroup=>-1) }
assert_raise(Errno::EPERM) { Process.wait spawn("true", :pgroup=>1) }
io1 = IO.popen([ruby, "-e", "print Process.getpgrp", :pgroup=>true])
io2 = IO.popen([ruby, "-e", "print Process.getpgrp", :pgroup=>io1.pid])
assert_equal(io1.pid.to_s, io1.read)
assert_equal(io1.pid.to_s, io2.read)
Process.wait io1.pid
Process.wait io2.pid
io1.close
io2.close
end
def test_execopts_rlimit
return unless rlimit_exist?
assert_raise(ArgumentError) { system("true", :rlimit_foo=>0) }
assert_raise(ArgumentError) { system("true", :rlimit_NOFILE=>0) }
assert_raise(ArgumentError) { system("true", :rlimit_nofile=>[]) }
assert_raise(ArgumentError) { system("true", :rlimit_nofile=>[1,2,3]) }
max = Process.getrlimit(:CORE).last
n = max
IO.popen([EnvUtil.rubybin, "-e",
"p Process.getrlimit(:CORE)", :rlimit_core=>n]) {|io|
assert_equal("[#{n}, #{n}]\n", io.read)
}
n = 0
IO.popen([EnvUtil.rubybin, "-e",
"p Process.getrlimit(:CORE)", :rlimit_core=>n]) {|io|
assert_equal("[#{n}, #{n}]\n", io.read)
}
n = max
IO.popen([EnvUtil.rubybin, "-e",
"p Process.getrlimit(:CORE)", :rlimit_core=>[n]]) {|io|
assert_equal("[#{n}, #{n}]", io.read.chomp)
}
m, n = 0, max
IO.popen([EnvUtil.rubybin, "-e",
"p Process.getrlimit(:CORE)", :rlimit_core=>[m,n]]) {|io|
assert_equal("[#{m}, #{n}]", io.read.chomp)
}
m, n = 0, 0
IO.popen([EnvUtil.rubybin, "-e",
"p Process.getrlimit(:CORE)", :rlimit_core=>[m,n]]) {|io|
assert_equal("[#{m}, #{n}]", io.read.chomp)
}
n = max
IO.popen([EnvUtil.rubybin, "-e",
"p Process.getrlimit(:CORE), Process.getrlimit(:CPU)",
:rlimit_core=>n, :rlimit_cpu=>3600]) {|io|
assert_equal("[#{n}, #{n}]\n[3600, 3600]", io.read.chomp)
}
end
def test_execopts_env
assert_raise(ArgumentError) {
system({"F=O"=>"BAR"}, "env")
}
h = {}
ENV.each {|k,v| h[k] = nil unless k == "PATH" }
IO.popen([h, "env"]) {|io|
assert_equal(1, io.readlines.length)
}
IO.popen([{"FOO"=>"BAR"}, "env"]) {|io|
assert_match(/FOO=BAR/, io.read)
}
with_tmpchdir {|d|
system({"fofo"=>"haha"}, "env", STDOUT=>"out")
assert_match(/fofo=haha/, File.read("out").chomp)
}
end
def test_execopts_unsetenv_others
IO.popen(["/usr/bin/env", :unsetenv_others=>true]) {|io|
assert_equal("", io.read)
}
IO.popen([{"A"=>"B"}, "/usr/bin/env", :unsetenv_others=>true]) {|io|
assert_equal("A=B\n", io.read)
}
end
def test_execopts_chdir
with_tmpchdir {|d|
Process.wait Process.spawn("pwd > dir", :chdir => d)
assert_equal(d, File.read("#{d}/dir").chomp)
assert_raise(Errno::ENOENT) {
Process.wait Process.spawn("true", :chdir => "d/notexist")
}
}
end
def test_execopts_umask
with_tmpchdir {|d|
n = "#{d}/mask"
Process.wait Process.spawn("sh -c umask > #{n}", :umask => 0)
assert_equal("0000", File.read(n).chomp)
Process.wait Process.spawn("sh -c umask > #{n}", :umask => 0777)
assert_equal("0777", File.read(n).chomp)
}
end
def with_pipe
begin
r, w = IO.pipe
yield r, w
ensure
r.close unless r.closed?
w.close unless w.closed?
end
end
def with_pipes(n)
ary = []
begin
n.times {
ary << IO.pipe
}
yield ary
ensure
ary.each {|r, w|
r.close unless r.closed?
w.close unless w.closed?
}
end
end
def test_execopts_redirect
with_tmpchdir {|d|
Process.wait Process.spawn("echo a", STDOUT=>["out", File::WRONLY|File::CREAT|File::TRUNC, 0644])
assert_equal("a", File.read("out").chomp)
Process.wait Process.spawn("echo 0", STDOUT=>["out", File::WRONLY|File::CREAT|File::APPEND, 0644])
assert_equal("a\n0\n", File.read("out"))
Process.wait Process.spawn("sort", STDIN=>["out", File::RDONLY, 0644],
STDOUT=>["out2", File::WRONLY|File::CREAT|File::TRUNC, 0644])
assert_equal("0\na\n", File.read("out2"))
Process.wait Process.spawn("echo b", [STDOUT, STDERR]=>["out", File::WRONLY|File::CREAT|File::TRUNC, 0644])
assert_equal("b", File.read("out").chomp)
Process.wait Process.spawn("echo a", STDOUT=>:close, STDERR=>["out", File::WRONLY|File::CREAT|File::TRUNC, 0644])
#p File.read("out")
assert(!File.read("out").empty?) # error message such as "echo: write error: Bad file descriptor\n".
Process.wait Process.spawn("echo c", STDERR=>STDOUT, STDOUT=>["out", File::WRONLY|File::CREAT|File::TRUNC, 0644])
assert_equal("c", File.read("out").chomp)
File.open("out", "w") {|f|
Process.wait Process.spawn("echo d", f=>STDOUT, STDOUT=>f)
assert_equal("d", File.read("out").chomp)
}
Process.wait Process.spawn("echo e", STDOUT=>["out", File::WRONLY|File::CREAT|File::TRUNC, 0644],
3=>STDOUT, 4=>STDOUT, 5=>STDOUT, 6=>STDOUT, 7=>STDOUT)
assert_equal("e", File.read("out").chomp)
File.open("out", "w") {|f|
h = {STDOUT=>f, f=>STDOUT}
3.upto(30) {|i| h[i] = STDOUT if f.fileno != i }
Process.wait Process.spawn("echo f", h)
assert_equal("f", File.read("out").chomp)
}
assert_raise(ArgumentError) {
Process.wait Process.spawn("echo f", 1=>Process)
}
assert_raise(ArgumentError) {
Process.wait Process.spawn("echo f", [Process]=>1)
}
assert_raise(ArgumentError) {
Process.wait Process.spawn("echo f", [1, STDOUT]=>2)
}
assert_raise(ArgumentError) {
Process.wait Process.spawn("echo f", -1=>2)
}
Process.wait Process.spawn("echo hhh; echo ggg", STDOUT=>"out")
assert_equal("hhh\nggg\n", File.read("out"))
Process.wait Process.spawn("sort", STDIN=>"out", STDOUT=>"out2")
assert_equal("ggg\nhhh\n", File.read("out2"))
assert_raise(Errno::ENOENT) {
Process.wait Process.spawn("non-existing-command", (3..100).to_a=>["err", File::WRONLY|File::CREAT])
}
assert_equal("", File.read("err"))
system("echo bb; echo aa", STDOUT=>["out", "w"])
assert_equal("bb\naa\n", File.read("out"))
system("sort", STDIN=>["out"], STDOUT=>"out2")
assert_equal("aa\nbb\n", File.read("out2"))
with_pipe {|r1, w1|
with_pipe {|r2, w2|
pid = spawn("sort", STDIN=>r1, STDOUT=>w2, w1=>:close, r2=>:close)
r1.close
w2.close
w1.puts "c"
w1.puts "a"
w1.puts "b"
w1.close
assert_equal("a\nb\nc\n", r2.read)
}
}
with_pipes(5) {|pipes|
ios = pipes.flatten
h = {}
ios.length.times {|i| h[ios[i]] = ios[(i-1)%ios.length] }
h2 = h.invert
rios = pipes.map {|r, w| r }
wios = pipes.map {|r, w| w }
child_wfds = wios.map {|w| h2[w].fileno }
pid = spawn(EnvUtil.rubybin, "-e",
"[#{child_wfds.join(',')}].each {|fd| IO.new(fd).puts fd }", h)
pipes.each {|r, w|
assert_equal("#{h2[w].fileno}\n", r.gets)
}
Process.wait pid;
}
with_pipes(5) {|pipes|
ios = pipes.flatten
h = {}
ios.length.times {|i| h[ios[i]] = ios[(i+1)%ios.length] }
h2 = h.invert
rios = pipes.map {|r, w| r }
wios = pipes.map {|r, w| w }
child_wfds = wios.map {|w| h2[w].fileno }
pid = spawn(EnvUtil.rubybin, "-e",
"[#{child_wfds.join(',')}].each {|fd| IO.new(fd).puts fd }", h)
pipes.each {|r, w|
assert_equal("#{h2[w].fileno}\n", r.gets)
}
Process.wait pid;
}
closed_fd = nil
with_pipes(5) {|pipes|
io = pipes.last.last
closed_fd = io.fileno
}
assert_raise(Errno::EBADF) { Process.wait spawn("true", closed_fd=>closed_fd) }
with_pipe {|r, w|
w.close_on_exec = true
pid = spawn(EnvUtil.rubybin, "-e", "IO.new(#{w.fileno}).print 'a'", w=>w)
w.close
assert_equal("a", r.read)
Process.wait pid
}
system("echo funya", :out=>"out")
assert_equal("funya\n", File.read("out"))
system("echo henya 1>&2", :err=>"out")
assert_equal("henya\n", File.read("out"))
IO.popen(["cat", :in=>"out"]) {|io|
assert_equal("henya\n", io.read)
}
}
end
def test_execopts_exec
with_tmpchdir {|d|
pid = fork {
exec "echo aaa", STDOUT=>"foo"
}
Process.wait pid
assert_equal("aaa\n", File.read("foo"))
}
end
def test_execopts_popen
with_tmpchdir {|d|
IO.popen("echo foo") {|io| assert_equal("foo\n", io.read) }
assert_raise(Errno::ENOENT) { IO.popen(["echo bar"]) {} }
IO.popen(["echo", "baz"]) {|io| assert_equal("baz\n", io.read) }
#IO.popen(["echo", "qux", STDOUT=>STDOUT]) {|io| assert_equal("qux\n", io.read) }
IO.popen(["echo", "hoge", STDERR=>STDOUT]) {|io|
assert_equal("hoge\n", io.read)
}
#IO.popen(["echo", "fuga", STDOUT=>"out"]) {|io|
# assert_equal("", io.read)
#}
#assert_equal("fuga\n", File.read("out"))
#IO.popen(["sh", "-c", "echo a >&3", 3=>STDOUT]) {|io|
# assert_equal("a\n", io.read)
#}
IO.popen(["sh", "-c", "echo b >&9",
9=>["out2", File::WRONLY|File::CREAT|File::TRUNC]]) {|io|
assert_equal("", io.read)
}
assert_equal("b\n", File.read("out2"))
IO.popen("-") {|io|
if !io
puts "fooo"
else
assert_equal("fooo\n", io.read)
end
}
}
end
def test_fd_inheritance
with_pipe {|r, w|
system("echo ba >&#{w.fileno}")
w.close
assert_equal("ba\n", r.read)
}
with_pipe {|r, w|
Process.wait spawn("echo bi >&#{w.fileno}")
w.close
assert_equal("bi\n", r.read)
}
with_pipe {|r, w|
Process.wait fork { exec("echo bu >&#{w.fileno}") }
w.close
assert_equal("bu\n", r.read)
}
with_pipe {|r, w|
io = IO.popen("echo be 2>&1 >&#{w.fileno}")
w.close
errmsg = io.read
assert_equal("", r.read)
assert_not_equal("", errmsg)
}
with_pipe {|r, w|
io = IO.popen([EnvUtil.rubybin, "-e", "STDERR.reopen(STDOUT); IO.new(#{w.fileno}).puts('me')"])
w.close
errmsg = io.read
assert_equal("", r.read)
assert_not_equal("", errmsg)
}
with_pipe {|r, w|
errmsg = `echo bo 2>&1 >&#{w.fileno}`
w.close
assert_equal("", r.read)
assert_not_equal("", errmsg)
}
end
def test_execopts_close_others
with_tmpchdir {|d|
with_pipe {|r, w|
system("exec 2>err; echo ma >&#{w.fileno}", :close_others=>true)
w.close
assert_equal("", r.read)
assert_not_equal("", File.read("err"))
File.unlink("err")
}
with_pipe {|r, w|
Process.wait spawn("exec 2>err; echo mi >&#{w.fileno}", :close_others=>true)
w.close
assert_equal("", r.read)
assert_not_equal("", File.read("err"))
File.unlink("err")
}
with_pipe {|r, w|
Process.wait fork { exec("exec 2>err; echo mu >&#{w.fileno}", :close_others=>true) }
w.close
assert_equal("", r.read)
assert_not_equal("", File.read("err"))
File.unlink("err")
}
with_pipe {|r, w|
io = IO.popen([EnvUtil.rubybin, "-e", "STDERR.reopen(STDOUT); IO.new(#{w.fileno}).puts('me')", :close_others=>true])
w.close
errmsg = io.read
assert_equal("", r.read)
assert_not_equal("", errmsg)
}
with_pipe {|r, w|
io = IO.popen([EnvUtil.rubybin, "-e", "STDERR.reopen(STDOUT); IO.new(#{w.fileno}).puts('mo')", :close_others=>false])
w.close
errmsg = io.read
assert_equal("mo\n", r.read)
assert_equal("", errmsg)
}
with_pipe {|r, w|
io = IO.popen([EnvUtil.rubybin, "-e", "STDERR.reopen(STDOUT); IO.new(#{w.fileno}).puts('mo')", :close_others=>nil])
w.close
errmsg = io.read
assert_equal("mo\n", r.read)
assert_equal("", errmsg)
}
}
end
def test_system
str = "echo fofo"
assert_nil(system([str, str]))
end
end
|