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import calendar
import datetime
from email.utils import formatdate
import pytest
from webob import datetime_utils
def test_UTC():
"""Test missing function in _UTC"""
x = datetime_utils.UTC
assert x.tzname(datetime.datetime.now()) == "UTC"
assert x.dst(datetime.datetime.now()) == datetime.timedelta(0)
assert x.utcoffset(datetime.datetime.now()) == datetime.timedelta(0)
assert repr(x) == "UTC"
# Testing datetime_utils.parse_date.
# We need to verify the following scenarios:
# * a nil submitted value
# * a submitted value that cannot be parse into a date
# * a valid RFC2822 date with and without timezone
class Uncooperative:
def __str__(self):
raise NotImplementedError
@pytest.mark.parametrize("invalid_date", [None, "Hi there", 1, "\xc3", Uncooperative()])
def test_parse_date_invalid(invalid_date):
assert datetime_utils.parse_date(invalid_date) is None
@pytest.mark.parametrize(
"valid_date, parsed_datetime",
[
(
"Mon, 20 Nov 1995 19:12:08 -0500",
datetime.datetime(1995, 11, 21, 0, 12, 8, tzinfo=datetime_utils.UTC),
),
(
"Mon, 20 Nov 1995 19:12:08",
datetime.datetime(1995, 11, 20, 19, 12, 8, tzinfo=datetime_utils.UTC),
),
],
)
def test_parse_date_valid(valid_date, parsed_datetime):
assert datetime_utils.parse_date(valid_date) == parsed_datetime
def test_serialize_date():
"""Testing datetime_utils.serialize_date
We need to verify the following scenarios:
* on py3, passing an binary date, return the same date but str
* on py2, passing an unicode date, return the same date but str
* passing a timedelta, return now plus the delta
* passing an invalid object, should raise ValueError
"""
from webob.util import text_
ret = datetime_utils.serialize_date("Mon, 20 Nov 1995 19:12:08 GMT")
assert isinstance(ret, str)
assert ret == "Mon, 20 Nov 1995 19:12:08 GMT"
ret = datetime_utils.serialize_date(text_("Mon, 20 Nov 1995 19:12:08 GMT"))
assert isinstance(ret, str)
assert ret == "Mon, 20 Nov 1995 19:12:08 GMT"
dt = formatdate(
calendar.timegm((datetime.datetime.now() + datetime.timedelta(1)).timetuple()),
usegmt=True,
)
assert dt == datetime_utils.serialize_date(datetime.timedelta(1))
with pytest.raises(ValueError):
datetime_utils.serialize_date(None)
def test_parse_date_delta():
"""Testing datetime_utils.parse_date_delta
We need to verify the following scenarios:
* passing a nil value, should return nil
* passing a value that fails the conversion to int, should call
parse_date
"""
assert datetime_utils.parse_date_delta(None) is None, (
"Passing none value," "should return None"
)
ret = datetime_utils.parse_date_delta("Mon, 20 Nov 1995 19:12:08 -0500")
assert ret == datetime.datetime(1995, 11, 21, 0, 12, 8, tzinfo=datetime_utils.UTC)
WHEN = datetime.datetime(2011, 3, 16, 10, 10, 37, tzinfo=datetime_utils.UTC)
with _NowRestorer(WHEN):
ret = datetime_utils.parse_date_delta(1)
assert ret == WHEN + datetime.timedelta(0, 1)
def test_serialize_date_delta():
"""Testing datetime_utils.serialize_date_delta
We need to verify the following scenarios:
* if we pass something that's not an int or float, it should delegate
the task to serialize_date
"""
assert datetime_utils.serialize_date_delta(1) == "1"
assert datetime_utils.serialize_date_delta(1.5) == "1"
ret = datetime_utils.serialize_date_delta("Mon, 20 Nov 1995 19:12:08 GMT")
assert type(ret) is (str)
assert ret == "Mon, 20 Nov 1995 19:12:08 GMT"
def test_timedelta_to_seconds():
val = datetime.timedelta(86400)
result = datetime_utils.timedelta_to_seconds(val)
assert result == 7464960000
class _NowRestorer:
def __init__(self, new_now):
self._new_now = new_now
self._old_now = None
def __enter__(self):
import webob.datetime_utils
self._old_now = webob.datetime_utils._now
webob.datetime_utils._now = lambda: self._new_now
def __exit__(self, exc_type, exc_value, traceback):
import webob.datetime_utils
webob.datetime_utils._now = self._old_now
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