def it_is_disallowed():
assert_command(
('pgctl', 'start'),
'',
'''\
[pgctl] Starting: sweet
[pgctl] Started: sweet
''',
0,
)
first = Popen(('pgctl', 'restart'), stdout=PIPE, stderr=PIPE)
# slow-shutdown takes two seconds to shut down; aim for the middle:
sleep(1)
second = Popen(('pgctl', 'restart'), stdout=PIPE, stderr=PIPE)
first_stdout, first_stderr = first.communicate()
first_stdout, first_stderr = first_stdout.decode('UTF-8'), first_stderr.decode('UTF-8')
show_both(first_stdout, first_stderr)
assert norm.pgctl(first_stderr) == '''\
[pgctl] Stopping: sweet
[pgctl] ERROR: service 'sweet' failed to stop after {TIME} seconds, its status is ready (pid {PID}) {TIME} seconds
==> playground/sweet/log <==
{TIMESTAMP} sweet
{TIMESTAMP} sweet_error
[pgctl]
[pgctl] There might be useful information further up in the log; you can view it by running:
[pgctl] less +G playground/sweet/log
[pgctl] ERROR: Some services failed to stop: sweet
'''
assert first_stdout == ''
assert first.returncode == 1
second_stdout, second_stderr = second.communicate()
second_stdout, second_stderr = second_stdout.decode('UTF-8'), second_stderr.decode('UTF-8')
show_both(second_stdout, second_stderr)
assert norm.pgctl(second_stderr) == '''\
[pgctl] ERROR: another pgctl command is currently managing this service: (playground/sweet/.pgctl.lock)
{PS-HEADER}
{PS-STATS} ${PREFIX}/bin/python ${PREFIX}/bin/pgctl restart
'''
assert second_stdout == ''
assert second.returncode == 1
def it_is_disallowed():
assert_command(
('pgctl-2015', 'start'),
'',
'''\
[pgctl] Starting: sweet
[pgctl] Started: sweet
''',
0,
)
first = Popen(('pgctl-2015', 'restart'), stdout=PIPE, stderr=PIPE)
# slow-shutdown takes two seconds to shut down; aim for the middle:
sleep(1)
second = Popen(('pgctl-2015', 'restart'), stdout=PIPE, stderr=PIPE)
first_stdout, first_stderr = first.communicate()
first_stdout, first_stderr = first_stdout.decode('UTF-8'), first_stderr.decode('UTF-8')
show_both(first_stdout, first_stderr)
assert norm.pgctl(first_stderr) == '''\
[pgctl] Stopping: sweet
[pgctl] ERROR: service 'sweet' failed to stop after {TIME} seconds, its status is ready (pid {PID}) {TIME} seconds
==> playground/sweet/log <==
{TIMESTAMP} sweet
{TIMESTAMP} sweet_error
[pgctl]
[pgctl] There might be useful information further up in the log; you can view it by running:
[pgctl] less +G playground/sweet/log
[pgctl] ERROR: Some services failed to stop: sweet
'''
assert first_stdout == ''
assert first.returncode == 1
second_stdout, second_stderr = second.communicate()
second_stdout, second_stderr = second_stdout.decode('UTF-8'), second_stderr.decode('UTF-8')
show_both(second_stdout, second_stderr)
assert norm.pgctl(second_stderr) == '''\
[pgctl] ERROR: another pgctl command is currently managing this service: (playground/sweet/.pgctl.lock)
{PS-HEADER}
{PS-STATS} ${PREFIX}/bin/python ${PREFIX}/bin/pgctl-2015 restart
'''
assert second_stdout == ''
assert second.returncode == 1
def it_logs_continuously_when_run_interactively(self, in_example_dir):
check_call(('pgctl', 'start'))
# this pty simulates running in a terminal
read, write = os.openpty()
pty.normalize_newlines(read)
p = Popen(('pgctl', 'log'), stdout=write, stderr=write)
os.close(write)
import fcntl
fl = fcntl.fcntl(read, fcntl.F_GETFL)
fcntl.fcntl(read, fcntl.F_SETFL, fl | os.O_NONBLOCK)
assert p.poll() is None # it's still running
# needs to loop for several seconds because the default event loop
# in tail-f is one second.
# TODO: buf is a list, use wait_for() to append to it
limit = 3.0
wait = .1
buf = b''
while True:
try:
block = os.read(read, 1024)
print('BLOCK:', block)
except OSError as error:
print('ERROR:', error)
if error.errno == 11: # other end didn't write yet
if limit > 0:
import time
time.sleep(wait)
limit -= wait
continue
else:
break
else:
raise
buf += block
from testfixtures import StringComparison as S
buf = norm.pgctl(buf.decode('UTF-8'))
print('NORMED:')
print(buf)
assert buf == S('''(?s)\
==> playground/ohhi/logs/current <==
{TIMESTAMP} [oe].*
==> playground/sweet/logs/current <==
{TIMESTAMP} sweet
{TIMESTAMP} sweet_error
==> playground/ohhi/logs/current <==
.*{TIMESTAMP} .*$''')
assert p.poll() is None # it's still running
p.terminate()
assert p.wait() == -15
def it_logs_continuously_when_run_interactively(self, in_example_dir):
check_call(('pgctl', 'start'))
# this pty simulates running in a terminal
read, write = os.openpty()
pty.normalize_newlines(read)
p = Popen(('pgctl', 'log'), stdout=write, stderr=write)
os.close(write)
import fcntl
fl = fcntl.fcntl(read, fcntl.F_GETFL)
fcntl.fcntl(read, fcntl.F_SETFL, fl | os.O_NONBLOCK)
assert p.poll() is None # it's still running
# needs to loop for several seconds because the default event loop
# in tail-f is one second.
# TODO: buf is a list, use wait_for() to append to it
limit = 3.0
wait = .1
buf = b''
while True:
try:
block = os.read(read, 1024)
print('BLOCK:', block)
except OSError as error:
print('ERROR:', error)
if error.errno == 11: # other end didn't write yet
if limit > 0:
import time
time.sleep(wait)
limit -= wait
continue
else:
break
else:
raise
buf += block
from testfixtures import StringComparison as S
buf = norm.pgctl(buf.decode('UTF-8'))
print('NORMED:')
print(buf)
assert buf == S('''(?s)\
==> playground/ohhi/log <==
{TIMESTAMP} [oe].*
==> playground/sweet/log <==
{TIMESTAMP} sweet
{TIMESTAMP} sweet_error
==> playground/ohhi/log <==
.*{TIMESTAMP} .*$''')
assert p.poll() is None # it's still running
p.terminate()
assert p.wait() == -15