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v/vlib/os/process_test.v
Delyan Angelov f427a5241a
os,tools: add os.vtmp_dir()
Use it to consistently place all temporary files created by tests in a overridable folder specific to the user, that is easy to cleanup later.

NOTE: os.temp_dir() on macos returns `/tmp`, and using `/tmp/v` is a problem when multiple unix users are trying to access/create/write to it.
2022-11-03 10:19:51 +02:00

105 lines
2.7 KiB
V

// vtest flaky: true
// vtest retry: 3
import os
import time
const (
vexe = os.getenv('VEXE')
vroot = os.dir(vexe)
tfolder = os.join_path(os.vtmp_dir(), 'v', 'tests', 'os_process')
test_os_process = os.join_path(tfolder, 'test_os_process.exe')
test_os_process_source = os.join_path(vroot, 'cmd/tools/test_os_process.v')
)
fn testsuite_begin() {
os.rmdir_all(tfolder) or {}
os.mkdir_all(tfolder)!
if os.getenv('WINE_TEST_OS_PROCESS_EXE') != '' {
// Make it easier to run the test under wine emulation, by just
// prebuilding the executable with:
// v -os windows -o x.exe cmd/tools/test_os_process.v
// WINE_TEST_OS_PROCESS_EXE=x.exe ./v -os windows vlib/os/process_test.v
os.cp(os.getenv('WINE_TEST_OS_PROCESS_EXE'), test_os_process)!
} else {
os.system('${os.quoted_path(vexe)} -o ${os.quoted_path(test_os_process)} ${os.quoted_path(test_os_process_source)}')
}
assert os.exists(test_os_process)
}
fn testsuite_end() {
os.rmdir_all(tfolder) or {}
}
fn test_getpid() {
pid := os.getpid()
eprintln('current pid: $pid')
assert pid != 0
}
fn test_run() {
mut p := os.new_process(test_os_process)
p.set_args(['-timeout_ms', '150', '-period_ms', '50'])
p.run()
assert p.status == .running
assert p.pid > 0
assert p.pid != os.getpid()
mut i := 0
for {
if !p.is_alive() {
break
}
$if trace_process_output ? {
os.system('ps -opid= -oppid= -ouser= -onice= -of= -ovsz= -orss= -otime= -oargs= -p $p.pid')
}
time.sleep(50 * time.millisecond)
i++
}
p.wait()
assert p.code == 0
assert p.status == .exited
//
eprintln('polling iterations: $i')
assert i < 50
p.close()
}
fn test_wait() {
mut p := os.new_process(test_os_process)
assert p.status != .exited
p.wait()
assert p.status == .exited
assert p.code == 0
assert p.pid != os.getpid()
p.close()
}
fn test_slurping_output() {
mut p := os.new_process(test_os_process)
p.set_args(['-timeout_ms', '500', '-period_ms', '50'])
p.set_redirect_stdio()
assert p.status != .exited
p.wait()
assert p.status == .exited
assert p.code == 0
output := p.stdout_slurp().trim_space()
errors := p.stderr_slurp().trim_space()
p.close()
$if trace_process_output ? {
eprintln('---------------------------')
eprintln('p output: "$output"')
eprintln('p errors: "$errors"')
eprintln('---------------------------')
}
// dump(output)
assert output.contains('stdout, 1')
assert output.contains('stdout, 2')
assert output.contains('stdout, 3')
assert output.contains('stdout, 4')
//
// dump(errors)
assert errors.contains('stderr, 1')
assert errors.contains('stderr, 2')
assert errors.contains('stderr, 3')
assert errors.contains('stderr, 4')
}