def test_kill_children():
"""Test that child processes are also killed. We don't want any zombies!."""
cmd = ExternalCommand(['bash', '-c', 'bash -c "sleep 10" & echo -n $!'])
assert cmd.run(timeout=1) is False
child_pid = int(cmd.stdout)
try:
# All processes in the group should be killed by SIGKILL,
# but `os.killpg` doesn't wait for them to die...
time.sleep(3)
os.kill(child_pid, 0)
except OSError:
# there is no process with such pid
assert True
else:
assert False
def test_env():
"""Test replacing environment."""
cmd = ExternalCommand(['bash', '-c', 'echo -n ${HOME}'])
assert cmd.run(env={'HOME': '/home/michal'}) is True
assert cmd.stdout == '/home/michal'
def test_update_env():
"""Test updating environment."""
cmd = ExternalCommand(
['bash', '-c', 'echo -n "You know nothing, ${NAME}..."'])
assert cmd.run(update_env={'NAME': 'Jon Snow'}) is True
assert cmd.stdout == 'You know nothing, Jon Snow...'