Run python test with constant time using mock
Python
import datetime
import time
import mock
# Ensure constant time.
with mock.patch.object(datetime, 'datetime', mock.Mock(wraps=datetime.datetime)) as patched:
patched.now.return_value = datetime.datetime(2020, 1, 1)
print(datetime.datetime.now())
time.sleep(3)
print(datetime.datetime.now())
Bash
$ python run_test.py
2020-01-01 00:00:00
2020-01-01 00:00:00