Adjust test_writer_bad_message for ujson

[jelly]

The correct timestamp value of
datetime.datetime(2019, 1, 1, 1, 1,1).timestamp() is 1546300861.

Closes: #6

[ccordoba12]

Tests are failing precisely due to the change you made. What version of ujson are you trying to support with it?

[jelly]

Tests are failing precisely due to the change you made. What version of ujson are you trying to support with it?

Ah, that's curious, they fail here locally with python-ujson 4.1.0-1 on Python 3.9 which is also tested in CI

[ccordoba12]

Our tests are also using ujson 4.1.0

[craftyguy]

datetime.datetime(2019, 1, 1, 1, 1,1).timestamp() is 1546300861.

Hmm....

❯ python3 --version
Python 3.9.6
❯ python3 -c "import datetime; print(datetime.datetime(year=2019,month=1,day=1,minute=1,second=1).timestamp())"
1546329661.0

This test is also failing for me on Alpine Linux, but I get a different timestamp value than either @jelly or the expected value in the test 🤦🏽

Edit: if we're getting different values for timestamp, then it kind of seems like some timezone stuff is at play here...

[craftyguy]

ok I get @jelly's 'answer' (1546300861 ) for timestamp if I use calendar.timegm

import calendar
import datetime
d = datetime.datetime(year=2019,month=1,day=1,minute=1,second=1)
t = d.timetuple()
print(calendar.timegm(t))

Seems like the test is in fact broken.