~osomon/pyexiv2/pyexiv2-0.3

# -*- 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.iptc import IptcTag

from pyexiv2.xmp import XmpTag

from pyexiv2.utils import make_fraction, FixedOffset

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', make_fraction(7, 3)))

        tags.append(ExifTag('Exif.Image.BaselineExposure', make_fraction(-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)

    def test_pickle_iptc_tag(self):

        tags = []

        tags.append(IptcTag('Iptc.Envelope.FileFormat', [23]))

        tags.append(IptcTag('Iptc.Application2.Subject', ['foo', 'bar', 'baz']))

        tags.append(IptcTag('Iptc.Envelope.DateSent', [datetime.date.today()]))

        tags.append(IptcTag('Iptc.Envelope.TimeSent',

                            [datetime.time(23, 37, 4, tzinfo=FixedOffset('+', 6, 0))]))

        tags.append(IptcTag('Iptc.Application2.Preview', ['01001101']))

        for tag in tags:

            s = pickle.dumps(tag)

            t = pickle.loads(s)

            self.assert_(isinstance(t, IptcTag))

            self.assertEqual(t.key, tag.key)

            self.assertEqual(t.type, tag.type)

            self.assertEqual(t.name, tag.name)

            self.assertEqual(t.title, tag.title)

            self.assertEqual(t.description, tag.description)

            self.assertEqual(t.photoshop_name, tag.photoshop_name)

            self.assertEqual(t.repeatable, tag.repeatable)

            self.assertEqual(t.record_name, tag.record_name)

            self.assertEqual(t.record_description, tag.record_description)

            self.assertEqual(t.raw_value, tag.raw_value)

            self.assertEqual(t.value, tag.value)

    def test_pickle_xmp_tag(self):

        tags = []

        tags.append(XmpTag('Xmp.dc.subject', ['foo', 'bar', 'baz']))

        tags.append(XmpTag('Xmp.xmpRights.Marked', True))

        tags.append(XmpTag('Xmp.xmp.CreateDate', datetime.date.today()))

        tags.append(XmpTag('Xmp.xmpMM.SaveID', 34))

        tags.append(XmpTag('Xmp.dc.format', ('image', 'jpeg')))

        tags.append(XmpTag('Xmp.photoshop.CaptionWriter', 'John Doe'))

        tags.append(XmpTag('Xmp.dc.source', 'bleh'))

        tags.append(XmpTag('Xmp.xmpMM.DocumentID', 'http://example.com'))

        tags.append(XmpTag('Xmp.xmp.BaseURL', 'http://example.com'))

        tags.append(XmpTag('Xmp.xmpDM.videoPixelAspectRatio', make_fraction(5, 3)))

        for tag in tags:

            s = pickle.dumps(tag)

            t = pickle.loads(s)

            self.assert_(isinstance(t, XmpTag))

            self.assertEqual(t.key, tag.key)

            self.assertEqual(t.type, tag.type)

            self.assertEqual(t.name, tag.name)

            self.assertEqual(t.title, tag.title)

            self.assertEqual(t.description, tag.description)

            self.assertEqual(t.raw_value, tag.raw_value)

            self.assertEqual(t.value, tag.value)