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v/vlib/os/process_test.v
2020-11-16 17:32:50 +01:00

64 lines
1.1 KiB
V

import os
import time
fn test_getpid() {
pid := os.getpid()
eprintln('current pid: $pid')
assert pid != 0
}
fn test_run() {
if os.user_os() == 'windows' {
return
}
//
mut p := os.new_process('/bin/sleep')
p.set_args(['0.2'])
p.run()
assert p.status == .running
assert p.pid > 0
assert p.pid != os.getpid()
mut i := 0
for {
if !p.is_alive() {
break
}
os.system('ps -opid= -oppid= -ouser= -onice= -of= -ovsz= -orss= -otime= -oargs= -p $p.pid')
time.sleep_ms(50)
i++
}
p.wait()
assert p.code == 0
assert p.status == .exited
//
eprintln('polling iterations: $i')
assert i > 1
assert i < 20
}
fn test_wait() {
if os.user_os() == 'windows' {
return
}
mut p := os.new_process('/bin/date')
p.wait()
assert p.pid != os.getpid()
assert p.code == 0
assert p.status == .exited
}
fn test_slurping_output() {
if os.user_os() == 'windows' {
return
}
mut p := os.new_process('/bin/date')
p.set_redirect_stdio()
p.wait()
assert p.code == 0
assert p.status == .exited
output := p.stdout_slurp().trim_space()
errors := p.stderr_slurp().trim_space()
eprintln('p output: "$output"')
eprintln('p errors: "$errors"')
}