def test_return_value(self):
result = smsnormalize.normalize_datetime('2015-01-01')
assert result == '2015-01-01T00:00:00'
def test_converts_gmt_string_without_day(self):
datestring = 'Jun 22 2015 09:12:45 GMT'
result = smsnormalize.normalize_datetime(datestring)
assert result == '2015-06-22T09:12:45'
def test_return_type_is_string(self):
result = smsnormalize.normalize_datetime('2015-01-01')
assert type(result) is str
