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# -*- coding: utf-8 -*-
# ******************************************************************************
#
# Copyright (C) 2010 Olivier Tilloy <olivier@tilloy.net>
#
# This file is part of the pyexiv2 distribution.
#
# pyexiv2 is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# pyexiv2 is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with pyexiv2; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, 5th Floor, Boston, MA 02110-1301 USA.
#
# Author: Olivier Tilloy <olivier@tilloy.net>
#
# ******************************************************************************
from pyexiv2.exif import ExifTag
from pyexiv2.utils import Rational
import unittest
import pickle
import datetime
class TestPicklingTags(unittest.TestCase):
def test_pickle_exif_tag(self):
tags = []
tags.append(ExifTag('Exif.Image.DateTime',
datetime.datetime(2010, 12, 22, 19, 21, 0)))
tags.append(ExifTag('Exif.GPSInfo.GPSDateStamp', datetime.date.today()))
tags.append(ExifTag('Exif.Image.Copyright', '(C) 2010 Santa Claus'))
tags.append(ExifTag('Exif.GPSInfo.GPSVersionID', '0'))
tags.append(ExifTag('Exif.Pentax.Temperature', '14'))
tags.append(ExifTag('Exif.Photo.UserComment', 'foo bar baz'))
tags.append(ExifTag('Exif.Image.BitsPerSample', 8))
tags.append(ExifTag('Exif.Image.TimeZoneOffset', 7))
tags.append(ExifTag('Exif.Image.ImageWidth', 7492))
tags.append(ExifTag('Exif.OlympusCs.ManometerReading', 29))
tags.append(ExifTag('Exif.Image.XResolution', Rational(7, 3)))
tags.append(ExifTag('Exif.Image.BaselineExposure', Rational(-7, 3)))
tags.append(ExifTag('Exif.Photo.ExifVersion', '0100'))
for tag in tags:
s = pickle.dumps(tag)
t = pickle.loads(s)
self.assert_(isinstance(t, ExifTag))
self.assertEqual(t.key, tag.key)
self.assertEqual(t.type, tag.type)
self.assertEqual(t.name, tag.name)
self.assertEqual(t.label, tag.label)
self.assertEqual(t.description, tag.description)
self.assertEqual(t.section_name, tag.section_name)
self.assertEqual(t.section_description, tag.section_description)
self.assertEqual(t.raw_value, tag.raw_value)
self.assertEqual(t.value, tag.value)
self.assertEqual(t.human_value, tag.human_value)
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