lutris/tests/test_lutris_wrapper.py
2021-02-15 19:36:13 -08:00

124 lines
4.3 KiB
Python

import sys
import os
import os.path
import unittest
import subprocess
if os.path.isfile('share/lutris/bin/lutris-wrapper'):
lutris_wrapper_bin = 'share/lutris/bin/lutris-wrapper'
else:
lutris_wrapper_bin = 'lutris-wrapper'
class LutrisWrapperTestCase(unittest.TestCase):
def test_excluded_initial_process(self):
"Test that an excluded process that starts a monitored process works"
env = os.environ.copy()
env['PYTHONPATH'] = ':'.join(sys.path)
# run the lutris-wrapper with a bash subshell. bash is "excluded"
wrapper_proc = subprocess.Popen(
[
sys.executable,
lutris_wrapper_bin,
'title',
'0',
'1',
'bash',
'bash',
'-c',
"echo Hello World; exec 1>&-; while sleep infinity; do true; done"
],
stdin=subprocess.DEVNULL,
stdout=subprocess.PIPE,
env=env,
)
try:
# Wait for the "Hello World" message that indicates that the process
# tree has started. This message arrives on stdout.
for line in wrapper_proc.stdout:
if line.strip() == b'Hello World':
# We found the output we're looking for.
break
else:
self.fail("stdout EOF unexpectedly")
# Wait a short while to see if lutris-wrapper will exit (it shouldn't)
try:
wrapper_proc.wait(0.5)
except subprocess.TimeoutExpired:
# as expected, the process is still alive.
pass
else:
# the test failed because the process exited for some reason.
self.fail("Process exited unexpectedly")
finally:
if wrapper_proc.returncode is None:
wrapper_proc.terminate()
wrapper_proc.wait(30)
wrapper_proc.stdout.close()
def test_cleanup_children(self):
"Test that nonresponsive child processes can be killed with 2x sigterm"
env = os.environ.copy()
env['PYTHONPATH'] = ':'.join(sys.path)
# First, we run the lutris-wrapper with a bash subshell which ignores
# SIGTERMs, emits a message to indicate readiness, and then closes
# stdout.
wrapper_proc = subprocess.Popen(
[
sys.executable,
lutris_wrapper_bin,
'title',
'0',
'0',
'bash',
'-c',
"trap '' SIGTERM; echo Hello World; exec 1>&-; while sleep infinity; do true; done"
],
stdin=subprocess.DEVNULL,
stdout=subprocess.PIPE,
env=env,
)
try:
# Wait for the "Hello World" message that indicates that the process
# tree has started. This message arrives on stdout.
for line in wrapper_proc.stdout:
if line.strip() == b'Hello World':
# We found the output we're looking for.
break
else:
self.fail("stdout EOF unexpectedly")
# Send first SIGTERM
wrapper_proc.terminate()
# Wait for confirmation that lutris-wrapper got our signal.
for line in wrapper_proc.stdout:
if line.strip() == b'--terminated processes--':
break
else:
self.fail("stdout EOF unexpectedly")
wrapper_proc.stdout.close() # don't need this anymore.
# Wait a short while to see if lutris-wrapper will exit (it shouldn't)
try:
wrapper_proc.wait(0.5)
except subprocess.TimeoutExpired:
# as expected, the process is still alive.
pass
else:
# the test failed because the process exited for some reason.
self.fail("Process exited unexpectedly")
# Send second SIGTERM
wrapper_proc.terminate()
# verify that lutris-wrapper closes.
wrapper_proc.wait(30)
finally:
if wrapper_proc.returncode is None:
wrapper_proc.kill()
wrapper_proc.wait(30)
wrapper_proc.stdout.close()