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require 'test_helper'
module SpawnImplementationTests
def test_spawn_simple
pid = _spawn('true')
assert_process_exit_ok pid
end
def test_spawn_with_args
pid = _spawn('true', 'with', 'some stuff')
assert_process_exit_ok pid
end
def test_spawn_with_shell
pid = _spawn('true && exit 13')
assert_process_exit_status pid, 13
end
def test_spawn_with_cmdname_and_argv0_tuple
pid = _spawn(['true', 'not-true'], 'some', 'args', 'toooo')
assert_process_exit_ok pid
end
def test_spawn_with_invalid_argv
assert_raises ArgumentError do
_spawn(['echo','b','c','d'])
end
end
##
# Environ
def test_spawn_inherit_env
ENV['PSPAWN'] = 'parent'
pid = _spawn('test "$PSPAWN" = "parent"')
assert_process_exit_ok pid
ensure
ENV.delete('PSPAWN')
end
def test_spawn_clean_env
ENV['PSPAWN'] = 'parent'
pid = _spawn({'TEMP'=>'child'}, 'test -z "$PSPAWN" && test "$TEMP" = "child"', :unsetenv_others => true)
assert_process_exit_ok pid
ensure
ENV.delete('PSPAWN')
end
def test_spawn_set_env
ENV['PSPAWN'] = 'parent'
pid = _spawn({'PSPAWN'=>'child'}, 'test "$PSPAWN" = "child"')
assert_process_exit_ok pid
ensure
ENV.delete('PSPAWN')
end
def test_spawn_unset_env
ENV['PSPAWN'] = 'parent'
pid = _spawn({'PSPAWN'=>nil}, 'test -z "$PSPAWN"')
assert_process_exit_ok pid
ensure
ENV.delete('PSPAWN')
end
##
# FD => :close options
def test_sanity_of_checking_clone_with_sh
rd, wr = IO.pipe
pid = _spawn("exec 2>/dev/null 9<&#{rd.posix_fileno} || exit 1", rd => rd)
assert_process_exit_status pid, 0
ensure
[rd, wr].each { |fd| fd.close rescue nil }
end
def test_spawn_close_option_with_symbolic_standard_stream_names
pid = _spawn('true 2>/dev/null 9<&0 || exit 1', :in => :close)
assert_process_exit_status pid, 1
pid = _spawn('true 2>/dev/null 9>&1 8>&2 || exit 1',
:out => :close, :err => :close)
assert_process_exit_status pid, 1
end
def test_spawn_close_on_standard_stream_io_object
pid = _spawn('true 2>/dev/null 9<&0 || exit 1', STDIN => :close)
assert_process_exit_status pid, 1
pid = _spawn('true 2>/dev/null 9>&1 8>&2 || exit 1',
STDOUT => :close, STDOUT => :close)
assert_process_exit_status pid, 1
end
def test_spawn_close_option_with_fd_number
rd, wr = IO.pipe
pid = _spawn("true 2>/dev/null 9<&#{rd.posix_fileno} || exit 1", rd.posix_fileno => :close)
assert_process_exit_status pid, 1
assert !rd.closed?
assert !wr.closed?
ensure
[rd, wr].each { |fd| fd.close rescue nil }
end
def test_spawn_close_option_with_io_object
rd, wr = IO.pipe
pid = _spawn("true 2>/dev/null 9<&#{rd.posix_fileno} || exit 1", rd => :close)
assert_process_exit_status pid, 1
assert !rd.closed?
assert !wr.closed?
ensure
[rd, wr].each { |fd| fd.close rescue nil }
end
def test_spawn_close_invalid_fd_raises_exception
pid = _spawn("echo", "hiya", 250 => :close)
assert_process_exit_status pid, 127
rescue Errno::EBADF
# this happens on darwin only. GNU does spawn and exits 127.
end
def test_spawn_invalid_chdir_raises_exception
pid = _spawn("echo", "hiya", :chdir => "/this/does/not/exist")
# fspawn does chdir in child, so it exits with 127
assert_process_exit_status pid, 127
rescue Errno::ENOENT
# pspawn and native spawn do chdir in parent, so they throw an exception
end
def test_spawn_closing_multiple_fds_with_array_keys
rd, wr = IO.pipe
pid = _spawn("true 2>/dev/null 9>&#{wr.posix_fileno} || exit 1", [rd, wr, :out] => :close)
assert_process_exit_status pid, 1
ensure
[rd, wr].each { |fd| fd.close rescue nil }
end
##
# FD => FD options
def test_spawn_redirect_fds_with_symbolic_names_and_io_objects
rd, wr = IO.pipe
pid = _spawn("echo", "hello world", :out => wr, rd => :close)
wr.close
output = rd.read
assert_process_exit_ok pid
assert_equal "hello world\n", output
ensure
[rd, wr].each { |fd| fd.close rescue nil }
end
def test_spawn_redirect_fds_with_fd_numbers
rd, wr = IO.pipe
pid = _spawn("echo", "hello world", 1 => wr.posix_fileno, rd.posix_fileno => :close)
wr.close
output = rd.read
assert_process_exit_ok pid
assert_equal "hello world\n", output
ensure
[rd, wr].each { |fd| fd.close rescue nil }
end
def test_spawn_redirect_invalid_fds_raises_exception
pid = _spawn("echo", "hiya", 1 => 250)
assert_process_exit_status pid, 127
rescue Errno::EBADF
# this happens on darwin only. GNU does spawn and exits 127.
end
def test_spawn_redirect_stderr_and_stdout_to_same_fd
rd, wr = IO.pipe
pid = _spawn("echo hello world 1>&2", :err => wr, :out => wr, rd => :close)
wr.close
output = rd.read
assert_process_exit_ok pid
assert_equal "hello world\n", output
ensure
[rd, wr].each { |fd| fd.close rescue nil }
end
def test_spawn_does_not_close_fd_when_redirecting
pid = _spawn("exec 2>&1", :err => :out)
assert_process_exit_ok pid
end
# Ruby 1.9 Process::spawn closes all fds by default. To keep an fd open, you
# have to pass it explicitly as fd => fd.
def test_explicitly_passing_an_fd_as_open
rd, wr = IO.pipe
pid = _spawn("exec 9>&#{wr.posix_fileno} || exit 1", wr => wr)
assert_process_exit_ok pid
ensure
[rd, wr].each { |fd| fd.close rescue nil }
end
##
# FD => file options
def test_spawn_redirect_fd_to_file_with_symbolic_name
file = File.expand_path('../test-output', __FILE__)
text = 'redirect_fd_to_file_with_symbolic_name'
pid = _spawn('echo', text, :out => file)
assert_process_exit_ok pid
assert File.exist?(file)
assert_equal "#{text}\n", File.read(file)
ensure
File.unlink(file) rescue nil
end
def test_spawn_redirect_fd_to_file_with_fd_number
file = File.expand_path('../test-output', __FILE__)
text = 'redirect_fd_to_file_with_fd_number'
pid = _spawn('echo', text, 1 => file)
assert_process_exit_ok pid
assert File.exist?(file)
assert_equal "#{text}\n", File.read(file)
ensure
File.unlink(file) rescue nil
end
def test_spawn_redirect_fd_to_file_with_io_object
file = File.expand_path('../test-output', __FILE__)
text = 'redirect_fd_to_file_with_io_object'
pid = _spawn('echo', text, STDOUT => file)
assert_process_exit_ok pid
assert File.exist?(file)
assert_equal "#{text}\n", File.read(file)
ensure
File.unlink(file) rescue nil
end
def test_spawn_redirect_fd_from_file_with_symbolic_name
file = File.expand_path('../test-input', __FILE__)
text = 'redirect_fd_from_file_with_symbolic_name'
File.open(file, 'w') { |fd| fd.write(text) }
pid = _spawn(%Q{test "$(cat)" = "#{text}"}, :in => file)
assert_process_exit_ok pid
ensure
File.unlink(file) rescue nil
end
def test_spawn_redirect_fd_from_file_with_fd_number
file = File.expand_path('../test-input', __FILE__)
text = 'redirect_fd_from_file_with_fd_number'
File.open(file, 'w') { |fd| fd.write(text) }
pid = _spawn(%Q{test "$(cat)" = "#{text}"}, 0 => file)
assert_process_exit_ok pid
ensure
File.unlink(file) rescue nil
end
def test_spawn_redirect_fd_from_file_with_io_object
file = File.expand_path('../test-input', __FILE__)
text = 'redirect_fd_from_file_with_io_object'
File.open(file, 'w') { |fd| fd.write(text) }
pid = _spawn(%Q{test "$(cat)" = "#{text}"}, STDIN => file)
assert_process_exit_ok pid
ensure
File.unlink(file) rescue nil
end
def test_spawn_redirect_fd_to_file_with_symbolic_name_and_flags
file = File.expand_path('../test-output', __FILE__)
text = 'redirect_fd_to_file_with_symbolic_name'
5.times do
pid = _spawn('echo', text, :out => [file, 'a'])
assert_process_exit_ok pid
end
assert File.exist?(file)
assert_equal "#{text}\n" * 5, File.read(file)
ensure
File.unlink(file) rescue nil
end
##
# :pgroup => <pgid>
def test_spawn_inherit_pgroup_from_parent_by_default
pgrp = Process.getpgrp
pid = _spawn("ruby", "-e", "exit(Process.getpgrp == #{pgrp} ? 0 : 1)")
assert_process_exit_ok pid
end
def test_spawn_inherit_pgroup_from_parent_when_nil
pgrp = Process.getpgrp
pid = _spawn("ruby", "-e", "exit(Process.getpgrp == #{pgrp} ? 0 : 1)", :pgroup => nil)
assert_process_exit_ok pid
end
def test_spawn_new_pgroup_with_true
pid = _spawn("ruby", "-e", "exit(Process.getpgrp == $$ ? 0 : 1)", :pgroup => true)
assert_process_exit_ok pid
end
def test_spawn_new_pgroup_with_zero
pid = _spawn("ruby", "-e", "exit(Process.getpgrp == $$ ? 0 : 1)", :pgroup => 0)
assert_process_exit_ok pid
end
def test_spawn_explicit_pgroup
pgrp = Process.getpgrp
pid = _spawn("ruby", "-e", "exit(Process.getpgrp == #{pgrp} ? 0 : 1)", :pgroup => pgrp)
assert_process_exit_ok pid
end
##
# Exceptions
def test_spawn_raises_exception_on_unsupported_options
exception = nil
assert_raises ArgumentError do
begin
_spawn('echo howdy', :out => '/dev/null', :oops => 'blaahh')
rescue Exception => e
exception = e
raise e
end
end
assert_match /oops/, exception.message
end
##
# Assertion Helpers
def assert_process_exit_ok(pid)
assert_process_exit_status pid, 0
end
def assert_process_exit_status(pid, status)
assert pid.to_i > 0, "pid [#{pid}] should be > 0"
chpid = ::Process.wait(pid)
assert_equal chpid, pid
assert_equal status, $?.exitstatus
end
end
class SpawnTest < Minitest::Test
include POSIX::Spawn
def test_spawn_methods_exposed_at_module_level
assert POSIX::Spawn.respond_to?(:pspawn)
assert POSIX::Spawn.respond_to?(:_pspawn)
end
##
# Options Preprocessing
def test_extract_process_spawn_arguments_with_options
assert_equal [{}, [['echo', 'echo'], 'hello', 'world'], {:err => :close}],
extract_process_spawn_arguments('echo', 'hello', 'world', :err => :close)
end
def test_extract_process_spawn_arguments_with_options_and_env
options = {:err => :close}
env = {'X' => 'Y'}
assert_equal [env, [['echo', 'echo'], 'hello world'], options],
extract_process_spawn_arguments(env, 'echo', 'hello world', options)
end
def test_extract_process_spawn_arguments_with_shell_command
assert_equal [{}, [['/bin/sh', '/bin/sh'], '-c', 'echo hello world'], {}],
extract_process_spawn_arguments('echo hello world')
end
def test_extract_process_spawn_arguments_with_special_cmdname_argv_tuple
assert_equal [{}, [['echo', 'fuuu'], 'hello world'], {}],
extract_process_spawn_arguments(['echo', 'fuuu'], 'hello world')
end
end
class PosixSpawnTest < Minitest::Test
include SpawnImplementationTests
def _spawn(*argv)
POSIX::Spawn.pspawn(*argv)
end
end
class ForkSpawnTest < Minitest::Test
include SpawnImplementationTests
def _spawn(*argv)
POSIX::Spawn.fspawn(*argv)
end
end
if ::Process::respond_to?(:spawn)
class NativeSpawnTest < Minitest::Test
include SpawnImplementationTests
def _spawn(*argv)
::Process.spawn(*argv)
end
end
end
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