def _convert_to_string(self, value):
"""Convert one value to its corresponding string representation,
suitable to pass to libexiv2.
Args:
value -- the value to be converted
Return: the value converted to its corresponding string representation
Raise IptcValueError: if the conversion fails
"""
if self.type == 'Short':
if isinstance(value, int):
return str(value)
else:
raise IptcValueError(value, self.type)
elif self.type == 'String':
if isinstance(value, str):
try:
return value.encode('utf-8')
except UnicodeEncodeError:
raise IptcValueError(value, self.type)
elif isinstance(value, bytes):
return value
else:
raise IptcValueError(value, self.type)
elif self.type == 'Date':
if isinstance(value, (datetime.date, datetime.datetime)):
return DateTimeFormatter.iptc_date(value)
else:
raise IptcValueError(value, self.type)
elif self.type == 'Time':
if isinstance(value, (datetime.time, datetime.datetime)):
return DateTimeFormatter.iptc_time(value)
else:
raise IptcValueError(value, self.type)
elif self.type == 'Undefined':
if isinstance(value, str):
return value
else:
raise IptcValueError(value, self.type)
raise IptcValueError(value, self.type)
def _convert_to_string(self, value):
"""
Convert one value to its corresponding string representation, suitable
to pass to libexiv2.
:param value: the value to be converted
:return: the value converted to its corresponding string representation
:rtype: string
:raise IptcValueError: if the conversion fails
"""
if self.type == 'Short':
if isinstance(value, int):
return str(value)
else:
raise IptcValueError(value, self.type)
elif self.type == 'String':
if isinstance(value, unicode):
try:
return value.encode('utf-8')
except UnicodeEncodeError:
raise IptcValueError(value, self.type)
elif isinstance(value, str):
return value
else:
raise IptcValueError(value, self.type)
elif self.type == 'Date':
if isinstance(value, (datetime.date, datetime.datetime)):
return DateTimeFormatter.iptc_date(value)
else:
raise IptcValueError(value, self.type)
elif self.type == 'Time':
if isinstance(value, (datetime.time, datetime.datetime)):
return DateTimeFormatter.iptc_time(value)
else:
raise IptcValueError(value, self.type)
elif self.type == 'Undefined':
if isinstance(value, str):
return value
else:
raise IptcValueError(value, self.type)
raise IptcValueError(value, self.type)
def test_iptc_time(self):
# datetime
d = datetime.datetime(1899, 12, 31)
self.assertEqual(DateTimeFormatter.iptc_time(d), '00:00:00+00:00')
d = datetime.datetime(1899, 12, 31, 23)
self.assertEqual(DateTimeFormatter.iptc_time(d), '23:00:00+00:00')
d = datetime.datetime(1899, 12, 31, 23, 59)
self.assertEqual(DateTimeFormatter.iptc_time(d), '23:59:00+00:00')
d = datetime.datetime(1899, 12, 31, 23, 59, 59)
self.assertEqual(DateTimeFormatter.iptc_time(d), '23:59:59+00:00')
d = datetime.datetime(1899, 12, 31, 23, 59, 59, 999999)
self.assertEqual(DateTimeFormatter.iptc_time(d), '23:59:59+00:00')
d = datetime.datetime(1899, 12, 31, 23, 59, 59, tzinfo=FixedOffset())
self.assertEqual(DateTimeFormatter.iptc_time(d), '23:59:59+00:00')
d = datetime.datetime(1899, 12, 31, 23, 59, 59, tzinfo=FixedOffset(hours=5))
self.assertEqual(DateTimeFormatter.iptc_time(d), '23:59:59+05:00')
d = datetime.datetime(2011, 8, 8, 19, 3, 37)
self.assertEqual(DateTimeFormatter.iptc_time(d), '19:03:37+00:00')
# time
d = datetime.time(23)
self.assertEqual(DateTimeFormatter.iptc_time(d), '23:00:00+00:00')
d = datetime.time(23, 59)
self.assertEqual(DateTimeFormatter.iptc_time(d), '23:59:00+00:00')
d = datetime.time(23, 59, 59)
self.assertEqual(DateTimeFormatter.iptc_time(d), '23:59:59+00:00')
d = datetime.time(23, 59, 59, 999999)
self.assertEqual(DateTimeFormatter.iptc_time(d), '23:59:59+00:00')
d = datetime.time(23, 59, 59, tzinfo=FixedOffset())
self.assertEqual(DateTimeFormatter.iptc_time(d), '23:59:59+00:00')
d = datetime.time(23, 59, 59, tzinfo=FixedOffset(hours=5))
self.assertEqual(DateTimeFormatter.iptc_time(d), '23:59:59+05:00')
d = datetime.time(19, 3, 37)
self.assertEqual(DateTimeFormatter.iptc_time(d), '19:03:37+00:00')
# invalid type
self.assertRaises(TypeError, DateTimeFormatter.iptc_time, None)
self.assertRaises(TypeError, DateTimeFormatter.iptc_time, 3.14)
def test_iptc_time(self):
# datetime
d = datetime.datetime(1899, 12, 31)
self.assertEqual(DateTimeFormatter.iptc_time(d), '00:00:00+00:00')
d = datetime.datetime(1899, 12, 31, 23)
self.assertEqual(DateTimeFormatter.iptc_time(d), '23:00:00+00:00')
d = datetime.datetime(1899, 12, 31, 23, 59)
self.assertEqual(DateTimeFormatter.iptc_time(d), '23:59:00+00:00')
d = datetime.datetime(1899, 12, 31, 23, 59, 59)
self.assertEqual(DateTimeFormatter.iptc_time(d), '23:59:59+00:00')
d = datetime.datetime(1899, 12, 31, 23, 59, 59, 999999)
self.assertEqual(DateTimeFormatter.iptc_time(d), '23:59:59+00:00')
d = datetime.datetime(1899, 12, 31, 23, 59, 59, tzinfo=FixedOffset())
self.assertEqual(DateTimeFormatter.iptc_time(d), '23:59:59+00:00')
d = datetime.datetime(1899,
12,
31,
23,
59,
59,
tzinfo=FixedOffset(hours=5))
self.assertEqual(DateTimeFormatter.iptc_time(d), '23:59:59+05:00')
d = datetime.datetime(2011, 8, 8, 19, 3, 37)
self.assertEqual(DateTimeFormatter.iptc_time(d), '19:03:37+00:00')
# time
d = datetime.time(23)
self.assertEqual(DateTimeFormatter.iptc_time(d), '23:00:00+00:00')
d = datetime.time(23, 59)
self.assertEqual(DateTimeFormatter.iptc_time(d), '23:59:00+00:00')
d = datetime.time(23, 59, 59)
self.assertEqual(DateTimeFormatter.iptc_time(d), '23:59:59+00:00')
d = datetime.time(23, 59, 59, 999999)
self.assertEqual(DateTimeFormatter.iptc_time(d), '23:59:59+00:00')
d = datetime.time(23, 59, 59, tzinfo=FixedOffset())
self.assertEqual(DateTimeFormatter.iptc_time(d), '23:59:59+00:00')
d = datetime.time(23, 59, 59, tzinfo=FixedOffset(hours=5))
self.assertEqual(DateTimeFormatter.iptc_time(d), '23:59:59+05:00')
d = datetime.time(19, 3, 37)
self.assertEqual(DateTimeFormatter.iptc_time(d), '19:03:37+00:00')
# invalid type
self.assertRaises(TypeError, DateTimeFormatter.iptc_time, None)
self.assertRaises(TypeError, DateTimeFormatter.iptc_time, 3.14)
def test_iptc_time_invalid(bad_ts):
with pytest.raises(TypeError):
DateTimeFormatter.iptc_time(bad_ts)
def test_iptc_time_valid(formatted, ts):
assert DateTimeFormatter.iptc_time(ts) == formatted
