Make IptcTag._convert_to_python an instance method.

1 files changed, 235 insertions, 0 deletions

diff --git a/test/iptc.py b/test/iptc.py
new file mode 100644
index 0000000..a630c24
--- /dev/null
+++ b/test/iptc.py
@@ -0,0 +1,235 @@
+# -*- coding: utf-8 -*-
+
+# ******************************************************************************
+#
+# Copyright (C) 2009 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>
+#
+# ******************************************************************************
+
+import unittest
+from pyexiv2 import IptcTag, IptcValueError, FixedOffset
+import datetime
+
+
+class IptcTagMock(IptcTag):
+
+    def __init__(self, key, type):
+        super(IptcTagMock, self).__init__(key, '', '', '', type, [])
+
+    def _init_values(self):
+        pass
+
+
+class ImageMetadataMock(object):
+
+    tags = {}
+
+    def _set_iptc_tag_values(self, key, values):
+        self.tags[key] = values
+
+    def _delete_iptc_tag(self, key):
+        try:
+            del self.tags[key]
+        except KeyError:
+            pass
+
+
+class TestIptcTag(unittest.TestCase):
+
+    def test_convert_to_python_short(self):
+        type = 'Short'
+
+        # Valid values
+        tag = IptcTagMock('Iptc.Envelope.FileFormat', type)
+        self.assertEqual(tag._convert_to_python('23'), 23)
+        self.assertEqual(tag._convert_to_python('+5628'), 5628)
+        self.assertEqual(tag._convert_to_python('-4'), -4)
+
+        # Invalid values
+        self.failUnlessRaises(IptcValueError, tag._convert_to_python, 'abc')
+        self.failUnlessRaises(IptcValueError, tag._convert_to_python, '5,64')
+        self.failUnlessRaises(IptcValueError, tag._convert_to_python, '47.0001')
+        self.failUnlessRaises(IptcValueError, tag._convert_to_python, '1E3')
+
+    def test_convert_to_string_short(self):
+        xtype = 'Short'
+        # Valid values
+        self.assertEqual(IptcTag._convert_to_string(123, xtype), '123')
+        self.assertEqual(IptcTag._convert_to_string(-57, xtype), '-57')
+        # Invalid values
+        self.failUnlessRaises(IptcValueError, IptcTag._convert_to_string, 'invalid', xtype)
+        self.failUnlessRaises(IptcValueError, IptcTag._convert_to_string, 3.14, xtype)
+
+    def test_convert_to_python_string(self):
+        type = 'String'
+
+        # Valid values
+        tag = IptcTagMock('Iptc.Application2.Subject', type)
+        self.assertEqual(tag._convert_to_python('Some text.'), 'Some text.')
+        self.assertEqual(tag._convert_to_python('Some text with exotic chàräctérʐ.'),
+                         u'Some text with exotic chàräctérʐ.')
+
+        # Invalid values
+        self.failUnlessRaises(IptcValueError, tag._convert_to_python, None)
+
+    def test_convert_to_string_string(self):
+        xtype = 'String'
+        # Valid values
+        self.assertEqual(IptcTag._convert_to_string(u'Some text', xtype), 'Some text')
+        self.assertEqual(IptcTag._convert_to_string(u'Some text with exotic chàräctérʐ.', xtype),
+                         'Some text with exotic chàräctérʐ.')
+        self.assertEqual(IptcTag._convert_to_string('Some text with exotic chàräctérʐ.', xtype),
+                         'Some text with exotic chàräctérʐ.')
+        # Invalid values
+        self.failUnlessRaises(IptcValueError, IptcTag._convert_to_string, None, xtype)
+
+    def test_convert_to_python_date(self):
+        type = 'Date'
+
+        # Valid values
+        tag = IptcTagMock('Iptc.Envelope.DateSent', type)
+        self.assertEqual(tag._convert_to_python('1999-10-13'),
+                         datetime.date(1999, 10, 13))
+
+        # Invalid values
+        self.failUnlessRaises(IptcValueError, tag._convert_to_python, 'invalid')
+        self.failUnlessRaises(IptcValueError, tag._convert_to_python, '11/10/1983')
+        self.failUnlessRaises(IptcValueError, tag._convert_to_python, '-1000')
+        self.failUnlessRaises(IptcValueError, tag._convert_to_python, '2009-02')
+        self.failUnlessRaises(IptcValueError, tag._convert_to_python, '2009-10-32')
+        self.failUnlessRaises(IptcValueError, tag._convert_to_python, '2009-02-24T22:12:54')
+
+    def test_convert_to_string_date(self):
+        xtype = 'Date'
+        # Valid values
+        self.assertEqual(IptcTag._convert_to_string(datetime.date(2009, 2, 4), xtype),
+                         '20090204')
+        self.assertEqual(IptcTag._convert_to_string(datetime.datetime(1999, 10, 13), xtype),
+                         '19991013')
+        self.assertEqual(IptcTag._convert_to_string(datetime.datetime(2009, 2, 4), xtype),
+                         '20090204')
+        self.assertEqual(IptcTag._convert_to_string(datetime.datetime(2009, 2, 4, 10, 52, 37), xtype),
+                         '20090204')
+        # Invalid values
+        self.failUnlessRaises(IptcValueError, IptcTag._convert_to_string, 'invalid', xtype)
+        self.failUnlessRaises(IptcValueError, IptcTag._convert_to_string, None, xtype)
+
+    def test_convert_to_python_time(self):
+        type = 'Time'
+
+        # Valid values
+        tag = IptcTagMock('Iptc.Envelope.TimeSent', type)
+        self.assertEqual(tag._convert_to_python('05:03:54+00:00'),
+                         datetime.time(5, 3, 54, tzinfo=FixedOffset()))
+        self.assertEqual(tag._convert_to_python('05:03:54+06:00'),
+                         datetime.time(5, 3, 54, tzinfo=FixedOffset('+', 6, 0)))
+        self.assertEqual(tag._convert_to_python('05:03:54-10:30'),
+                         datetime.time(5, 3, 54, tzinfo=FixedOffset('-', 10, 30)))
+
+        # Invalid values
+        self.failUnlessRaises(IptcValueError, tag._convert_to_python, 'invalid')
+        self.failUnlessRaises(IptcValueError, tag._convert_to_python, '23:12:42')
+        self.failUnlessRaises(IptcValueError, tag._convert_to_python, '25:12:42+00:00')
+        self.failUnlessRaises(IptcValueError, tag._convert_to_python, '21:77:42+00:00')
+        self.failUnlessRaises(IptcValueError, tag._convert_to_python, '21:12:98+00:00')
+        self.failUnlessRaises(IptcValueError, tag._convert_to_python, '081242+0000')
+
+    def test_convert_to_string_time(self):
+        xtype = 'Time'
+        # Valid values
+        self.assertEqual(IptcTag._convert_to_string(datetime.time(10, 52, 4), xtype),
+                         '105204+0000')
+        self.assertEqual(IptcTag._convert_to_string(datetime.time(10, 52, 4, 574), xtype),
+                         '105204+0000')
+        self.assertEqual(IptcTag._convert_to_string(datetime.time(10, 52, 4, tzinfo=FixedOffset()), xtype),
+                         '105204+0000')
+        self.assertEqual(IptcTag._convert_to_string(datetime.time(10, 52, 4, tzinfo=FixedOffset('+', 5, 30)), xtype),
+                         '105204+0530')
+        self.assertEqual(IptcTag._convert_to_string(datetime.time(10, 52, 4, tzinfo=FixedOffset('-', 4, 0)), xtype),
+                         '105204-0400')
+        self.assertEqual(IptcTag._convert_to_string(datetime.datetime(2007, 2, 7, 10, 52, 4), xtype),
+                         '105204+0000')
+        self.assertEqual(IptcTag._convert_to_string(datetime.datetime(2007, 2, 7, 10, 52, 4, 478), xtype),
+                         '105204+0000')
+        self.assertEqual(IptcTag._convert_to_string(datetime.datetime(2007, 2, 7, 10, 52, 4, tzinfo=FixedOffset()), xtype),
+                         '105204+0000')
+        self.assertEqual(IptcTag._convert_to_string(datetime.datetime(2007, 2, 7, 10, 52, 4, tzinfo=FixedOffset('+', 5, 30)), xtype),
+                         '105204+0530')
+        self.assertEqual(IptcTag._convert_to_string(datetime.datetime(2007, 2, 7, 10, 52, 4, tzinfo=FixedOffset('-', 4, 0)), xtype),
+                         '105204-0400')
+        # Invalid values
+        self.failUnlessRaises(IptcValueError, IptcTag._convert_to_string, 'invalid', xtype)
+
+    def test_convert_to_python_undefined(self):
+        type = 'Undefined'
+
+        # Valid values
+        tag = IptcTagMock('Iptc.Envelope.CharacterSet', type)
+        self.assertEqual(tag._convert_to_python('Some binary data.'),
+                         'Some binary data.')
+        self.assertEqual(tag._convert_to_python('�lj1�eEϟ�u����ᒻ;C(�SpI]���QI�}'),
+                         '�lj1�eEϟ�u����ᒻ;C(�SpI]���QI�}')
+
+    def test_convert_to_string_undefined(self):
+        xtype = 'Undefined'
+        # Valid values
+        self.assertEqual(IptcTag._convert_to_string('Some binary data.', xtype),
+                         'Some binary data.')
+        self.assertEqual(IptcTag._convert_to_string('�lj1�eEϟ�u����ᒻ;C(�SpI]���QI�}', xtype),
+                         '�lj1�eEϟ�u����ᒻ;C(�SpI]���QI�}')
+        # Invalid values
+        self.failUnlessRaises(IptcValueError, IptcTag._convert_to_string, None, xtype)
+
+    def test_set_values_no_metadata(self):
+        tag = IptcTag('Iptc.Application2.City', 'City', 'City', 'Identifies ' \
+                      'city of object data origin according to guidelines ' \
+                      'established by the provider.', 'String', ['Seattle'])
+        old_values = tag.values
+        tag.values = ['Barcelona']
+        self.failIfEqual(tag.values, old_values)
+
+    def test_set_values_with_metadata(self):
+        tag = IptcTag('Iptc.Application2.City', 'City', 'City', 'Identifies ' \
+                      'city of object data origin according to guidelines ' \
+                      'established by the provider.', 'String', ['Seattle'])
+        tag.metadata = ImageMetadataMock()
+        old_values = tag.values
+        tag.values = ['Barcelona']
+        self.failIfEqual(tag.values, old_values)
+        self.assertEqual(tag.metadata.tags[tag.key], ['Barcelona'])
+
+    def test_del_values_no_metadata(self):
+        tag = IptcTag('Iptc.Application2.City', 'City', 'City', 'Identifies ' \
+                      'city of object data origin according to guidelines ' \
+                      'established by the provider.', 'String', ['Seattle'])
+        del tag.values
+        self.failIf(hasattr(tag, 'values'))
+
+    def test_del_values_with_metadata(self):
+        tag = IptcTag('Iptc.Application2.City', 'City', 'City', 'Identifies ' \
+                      'city of object data origin according to guidelines ' \
+                      'established by the provider.', 'String', ['Seattle'])
+        tag.metadata = ImageMetadataMock()
+        tag.metadata._set_iptc_tag_values(tag.key, tag.to_string())
+        self.assertEqual(tag.metadata.tags, {tag.key: ['Seattle']})
+        del tag.values
+        self.failIf(hasattr(tag, 'values'))
+        self.failIf(tag.metadata.tags.has_key(tag.key))