def test_proper_run(monkeypatch, counter):
"Tries a cron run with a non-trivial time pattern"
cronfile = os.tmpnam()
f = open(cronfile,"w")
f.write("*/2 0 * * * touch /tmp/foo\n") # Every alternate minute in the first hour only
f.close()
cron = minicron.Minicron(cronfile, datetime.datetime(hour =0, minute = 0, second = 0, year = 2011, month = 1, day =1), 0.01)
monkeypatch.setattr(cron, '_run_command', counter(cron._run_command))
cron.run(120) # Run for 2 hours
assert cron._run_command.invocations == 29, "The function should have run every alternate minute in the first hour (29 times) but ran %s times"%cron._run_command.invocations
f = open(cronfile,"w")
f.write("*/2 0 * * * touch /tmp/foo\n") # Every alternate minute in the first hour only
f.write("* 1 * * * touch /tmp/foo\n") # Every minute in the second hour
f.close()
cron = minicron.Minicron(cronfile, datetime.datetime(hour =0, minute = 0, second = 0, year = 2011, month = 1, day =1), 0.01)
monkeypatch.setattr(cron, '_run_command', counter(cron._run_command))
cron.run(180) # Run for 3 hours
assert cron._run_command.invocations == 89, "The function should have run every alternate minute in the first hour (29 times) and every minute in the second (60 times) i.e. totally 89 times but ran %s times"%cron._run_command.invocations
f = open(cronfile,"w")
f.write("1 1 * * * touch /tmp/foo\n") # Every alternate minute in the first hour only
f.close()
cron = minicron.Minicron(cronfile, datetime.datetime(hour =0, minute = 0, second = 0, year = 2011, month = 1, day =1), 0.01)
monkeypatch.setattr(cron, '_run_command', counter(cron._run_command))
cron.run(180) # Run for 3 hours
assert cron._run_command.invocations == 1, "The function should have run just once in the second minute of the second hour but ran %s times"%cron._run_command.invocations
def test_cronline_parser_everyfifthminute(dummy_crontabfile):
"Checks the cronline parser for executing at every fifth minute"
cron = minicron.Minicron(dummy_crontabfile, 1)
d = datetime.datetime(year = 2010, month = 8, day = 10, hour = 1, minute = 2, second = 0)
assert cron._matches_cron_expression(d, "*/5 * * * * do_something") == False, "*/5 * * * * should be executed only at every fifth minute but is executed at the second"
d = datetime.datetime(year = 2010, month = 8, day = 10, hour = 1, minute = 5, second = 0)
assert cron._matches_cron_expression(d, "*/5 * * * * do_something"), "*/5 * * * * should be executed at the fifth minute but is not"
def test_cronline_running(crontabfile):
"Checks if the cron actually executes commands"
assert not os.path.exists("/tmp/crontest") # Make sure that out test file doesn't exist
cron = minicron.Minicron(crontabfile, None, 0.1)
cron.run(1)
assert os.path.exists("/tmp/crontest"), "/tmp/crontest should have been created by the cron but its not"
os.unlink("/tmp/crontest")
def test_cronline_parser_thirdhourofeveryday(dummy_crontabfile):
"Checks the cronline parser for executing at the third hour of every day"
cron = minicron.Minicron(dummy_crontabfile, 1)
expression = "* 3 * * * do_something"
d = datetime.datetime(year = 2010, month = 8, day = 10, hour = 1, minute = 1, second = 0)
assert cron._matches_cron_expression(d, expression) == False, " %s should be executed only at the third hour but is executed at the first"%expression
d = datetime.datetime(year = 2010, month = 8, day = 10, hour = 3, minute = 1, second = 0)
assert cron._matches_cron_expression(d, expression), "%s should be executed at the third hour but is not"%expression
d = datetime.datetime(year = 2010, month = 8, day = 10, hour = 6, minute = 1, second = 0)
assert cron._matches_cron_expression(d, expression) == False, "%s should not be executed in the 6th hour but it is"%expression
def main():
opts, args = parse_options(sys.argv[1:])
if opts.debug:
level = logging.DEBUG
else:
level = logging.INFO
logging.basicConfig(
level=level,
format="[%(levelname)s] : %(filename)s:%(lineno)d : %(message)s")
cron = minicron.Minicron(
args[0], datetime.datetime.strptime(opts.starttime,
"%Y-%m-%d %H:%M:%S"),
opts.interval)
try:
cron.run()
except KeyboardInterrupt:
logging.info("User initiated shutdown")
return 0
return -1
def test_cronline_parser_everyminute(dummy_crontabfile):
"Checks the cronline parser for executing every minute/hour"
cron = minicron.Minicron(dummy_crontabfile, 1)
d = datetime.datetime.now()
assert cron._matches_cron_expression(d, "* * * * * do_something"), "* * * * * should be executed every minute/hour but isn't"
def test_ticker(dummy_crontabfile, monkeypatch, counter):
"Checks that the ticker executes once a minute"
cron = minicron.Minicron(dummy_crontabfile, None, 0.1) # Make the clock tick once in 0.1 seconds (so that the test finishes quickly)
monkeypatch.setattr(cron, '_tick', counter(cron._tick))
cron.run(3)
assert cron._tick.invocations == 3, "Ticker ran %d times (should be 3)"%cron._tick.invocations
def test_malformed_cron_line(dummy_crontabfile):
cron = minicron.Minicron(dummy_crontabfile, 1)
d = datetime.datetime.now()
py.test.raises(minicron.BadCronLine, cron._matches_cron_expression, d, "* * 5 * * do_something")
def test_nonexistentinputfile(dummy_crontabfile):
"Create a cron parser with an non existent input file"
cron = minicron.Minicron("/non/existent/file.tests", None, 0.01)
py.test.raises(IOError, cron.run)