def test_datetime_synced_with_exif_and_iptc(self):
# Create an image with metadata.
file_descriptor, file_path = tempfile.mkstemp(suffix='.jpg')
os.close(file_descriptor)
Image.new('RGB', (1, 1)).save(file_path, 'JPEG')
metadata = pyexiv2.Image(file_path)
metadata.readMetadata()
value = datetime.datetime.now()
time_keys = ('Exif.Photo.DateTimeOriginal',
'Iptc.Application2.DateCreated',
'Iptc.Application2.TimeCreated',)
metadata['Exif.Photo.DateTimeOriginal'] = value
try:
metadata['Iptc.Application2.DateCreated'] = value.date()
except TypeError:
pass
try:
metadata['Iptc.Application2.TimeCreated'] = value.time()
except TypeError:
pass
metadata.writeMetadata()
# Test synchronization status.
self.assertTrue(
datetime_synced_with_exif_and_iptc(value, metadata, *time_keys))
one_second = datetime.timedelta(seconds=1)
value = value + one_second
self.assertFalse(
datetime_synced_with_exif_and_iptc(value, metadata, *time_keys))
value = metadata['Exif.Photo.DateTimeOriginal']
metadata['Exif.Photo.DateTimeOriginal'] = value + one_second
metadata.writeMetadata()
self.assertFalse(
datetime_synced_with_exif_and_iptc(value, metadata, *time_keys))
_del_img_key(metadata, 'Exif.Photo.DateTimeOriginal')
metadata.writeMetadata()
self.assertTrue(
datetime_synced_with_exif_and_iptc(value, metadata, *time_keys))
_del_img_key(metadata, 'Iptc.Application2.DateCreated')
_del_img_key(metadata, 'Iptc.Application2.TimeCreated')
metadata['Exif.Photo.DateTimeOriginal'] = value
metadata.writeMetadata()
self.assertTrue(
datetime_synced_with_exif_and_iptc(value, metadata, *time_keys))
value = None
_del_img_key(metadata, 'Exif.Photo.DateTimeOriginal')
metadata.writeMetadata()
self.assertTrue(
datetime_synced_with_exif_and_iptc(value, metadata, *time_keys))
# Clean up.
os.remove(file_path)
def test_read_value_from_exif_and_iptc(self):
# Create an image.
file_descriptor, file_path = tempfile.mkstemp(suffix='.jpg')
os.close(file_descriptor)
Image.new('RGB', (1, 1)).save(file_path, 'JPEG')
metadata = pyexiv2.Image(file_path)
metadata.readMetadata()
keys = ('Exif.Image.ImageDescription', 'Iptc.Application2.Caption')
exif_val = 'Test file with Exif description tag'
iptc_val = 'Test file with IPTC description tag'
# Read metadata from image after conflicting Exif and IPTC
# have been added to the image. Exif should be preferred.
metadata['Exif.Image.ImageDescription'] = exif_val
metadata['Iptc.Application2.Caption'] = iptc_val
metadata.writeMetadata()
metadata = pyexiv2.Image(file_path)
metadata.readMetadata()
self.assertEqual(read_value_from_exif_and_iptc(metadata, *keys),
exif_val)
# Read metadata value when image contains only Exif.
_del_img_key(metadata, 'Iptc.Application2.Caption')
metadata.writeMetadata()
self.assertEqual(read_value_from_exif_and_iptc(metadata, *keys),
exif_val)
# Read metadata value when image contains only IPTC.
_del_img_key(metadata, 'Exif.Image.ImageDescription')
metadata['Iptc.Application2.Caption'] = iptc_val
metadata.writeMetadata()
metadata = pyexiv2.Image(file_path)
metadata.readMetadata()
self.assertEqual(read_value_from_exif_and_iptc(metadata, *keys),
iptc_val)
# Attempt to read nonexistent metadata.
_del_img_key(metadata, 'Iptc.Application2.Caption')
metadata.writeMetadata()
self.assertEqual(read_value_from_exif_and_iptc(metadata, *keys), None)
# Clean up.
os.remove(file_path)
def test_del_img_key(self):
# Create an image.
file_descriptor, file_path = tempfile.mkstemp(suffix='.jpg')
os.close(file_descriptor)
Image.new('RGB', (1, 1)).save(file_path, 'JPEG')
metadata = pyexiv2.Image(file_path)
metadata.readMetadata()
# Add and delete Exif metadata.
value = 'Test file with description'
metadata['Exif.Image.ImageDescription'] = value
metadata.writeMetadata()
self.assertEqual(metadata['Exif.Image.ImageDescription'],
'Test file with description')
_del_img_key(metadata, 'Exif.Image.ImageDescription')
metadata.writeMetadata()
self.assertFalse('Exif.Image.ImageDescription' in metadata.exifKeys())
# Add and delete IPTC string metadata.
value = 'Test file with description'
metadata['Iptc.Application2.Caption'] = value
metadata.writeMetadata()
_del_img_key(metadata, 'Iptc.Application2.Caption')
metadata.writeMetadata()
self.assertFalse('Iptc.Application2.Caption' in metadata.iptcKeys())
# Add and delete IPTC date metadata.
value = datetime.date.today()
try:
metadata['Iptc.Application2.DateCreated'] = value
except TypeError:
pass
metadata.writeMetadata()
self.assertTrue(
'Iptc.Application2.DateCreated' in metadata.iptcKeys())
_del_img_key(metadata, 'Iptc.Application2.DateCreated')
metadata.writeMetadata()
self.assertFalse(
'Iptc.Application2.DateCreated' in metadata.iptcKeys())
os.remove(file_path)
def test_read_datetime_from_exif_and_iptc(self):
# Create an image.
file_descriptor, file_path = tempfile.mkstemp(suffix='.jpg')
os.close(file_descriptor)
Image.new('RGB', (1, 1)).save(file_path, 'JPEG')
metadata = pyexiv2.Image(file_path)
metadata.readMetadata()
keys = ('Exif.Photo.DateTimeOriginal',
'Iptc.Application2.DateCreated',
'Iptc.Application2.TimeCreated',)
# Note that metadata doesn't have microsecond precision.
exif_val = datetime.datetime(2007, 9, 28, 3, 0)
iptc_val = datetime.datetime(2007, 10, 10, 5, 0)
iptc_date = iptc_val.date()
iptc_time = iptc_val.time()
# Read metadata from image after conflicting Exif and IPTC
# have been added to the image. Exif should be preferred.
metadata['Exif.Photo.DateTimeOriginal'] = exif_val
try:
metadata['Iptc.Application2.DateCreated'] = iptc_date
except TypeError:
pass
try:
metadata['Iptc.Application2.TimeCreated'] = iptc_time
except TypeError:
pass
metadata.writeMetadata()
self.assertEqual(read_datetime_from_exif_and_iptc(metadata, *keys),
exif_val)
# Read metadata value when image contains only Exif.
_del_img_key(metadata, 'Iptc.Application2.DateCreated')
_del_img_key(metadata, 'Iptc.Application2.TimeCreated')
metadata.writeMetadata()
self.assertEqual(read_datetime_from_exif_and_iptc(metadata, *keys),
exif_val)
# Read metadata value when image contains only IPTC.
_del_img_key(metadata, 'Exif.Photo.DateTimeOriginal')
try:
metadata['Iptc.Application2.DateCreated'] = iptc_date
except TypeError:
pass
try:
metadata['Iptc.Application2.TimeCreated'] = iptc_time
except TypeError:
pass
metadata.writeMetadata()
self.assertEqual(read_datetime_from_exif_and_iptc(metadata, *keys),
iptc_val)
# Attempt to read nonexistent metadata.
_del_img_key(metadata, 'Iptc.Application2.DateCreated')
_del_img_key(metadata, 'Iptc.Application2.TimeCreated')
metadata.writeMetadata()
self.assertEqual(read_datetime_from_exif_and_iptc(metadata, *keys),
None)
# Attempt to read incomplete metadata containing only IPTC date.
try:
metadata['Iptc.Application2.DateCreated'] = iptc_date
except TypeError:
pass
metadata.writeMetadata()
self.assertEqual(read_datetime_from_exif_and_iptc(metadata, *keys),
None)
# Attempt to read incomplete metadata containing only IPTC time.
_del_img_key(metadata, 'Iptc.Application2.DateCreated')
try:
metadata['Iptc.Application2.TimeCreated'] = iptc_time
except TypeError:
pass
metadata.writeMetadata()
self.assertEqual(read_datetime_from_exif_and_iptc(metadata, *keys),
None)
# Clean up.
os.remove(file_path)
def test_value_synced_with_exif_and_iptc(self):
# Create an image with metadata.
file_descriptor, file_path = tempfile.mkstemp(suffix='.jpg')
os.close(file_descriptor)
Image.new('RGB', (1, 1)).save(file_path, 'JPEG')
metadata = pyexiv2.Image(file_path)
metadata.readMetadata()
test_description = 'Test file with description'
metadata['Exif.Image.ImageDescription'] = test_description
metadata['Iptc.Application2.Caption'] = test_description
metadata.writeMetadata()
metadata = pyexiv2.Image(file_path)
metadata.readMetadata()
self.assertEqual(metadata['Exif.Image.ImageDescription'],
'Test file with description')
self.assertEqual(metadata['Iptc.Application2.Caption'],
'Test file with description')
# Test synchronization status.
self.assertTrue(
value_synced_with_exif_and_iptc(test_description, metadata,
'Exif.Image.ImageDescription',
'Iptc.Application2.Caption'))
test_description = 'New, different test description'
self.assertFalse(
value_synced_with_exif_and_iptc(test_description, metadata,
'Exif.Image.ImageDescription',
'Iptc.Application2.Caption'))
test_description = metadata['Exif.Image.ImageDescription']
metadata['Exif.Image.ImageDescription'] = 'modified'
metadata.writeMetadata()
self.assertFalse(
value_synced_with_exif_and_iptc(test_description, metadata,
'Exif.Image.ImageDescription',
'Iptc.Application2.Caption'))
_del_img_key(metadata, 'Exif.Image.ImageDescription')
metadata.writeMetadata()
self.assertFalse('Exif.Image.ImageDescription' in metadata.exifKeys())
self.assertTrue(
value_synced_with_exif_and_iptc(test_description, metadata,
'Exif.Image.ImageDescription',
'Iptc.Application2.Caption'))
_del_img_key(metadata, 'Iptc.Application2.Caption')
metadata['Exif.Image.ImageDescription'] = test_description
metadata.writeMetadata()
self.assertTrue(
value_synced_with_exif_and_iptc(test_description, metadata,
'Exif.Image.ImageDescription',
'Iptc.Application2.Caption'))
_del_img_key(metadata, 'Exif.Image.ImageDescription')
metadata.writeMetadata()
self.assertFalse('Exif.Image.ImageDescription' in metadata.exifKeys())
self.assertFalse('Iptc.Application2.Caption' in metadata.iptcKeys())
empty_string = ""
self.assertTrue(
value_synced_with_exif_and_iptc(empty_string, metadata,
'Exif.Image.ImageDescription',
'Iptc.Application2.Caption'))
# Clean up.
os.remove(file_path)
def test_value_synced_with_iptc(self):
# Create an image.
file_descriptor, file_path = tempfile.mkstemp(suffix='.jpg')
os.close(file_descriptor)
Image.new('RGB', (1, 1)).save(file_path, 'JPEG')
metadata = pyexiv2.Image(file_path)
metadata.readMetadata()
# Add string metadata.
test_description = 'Test file with description'
metadata['Iptc.Application2.Caption'] = test_description
metadata.writeMetadata()
metadata = pyexiv2.Image(file_path)
metadata.readMetadata()
self.assertEqual(metadata['Iptc.Application2.Caption'],
'Test file with description')
# Test synchronization status of string metadata.
self.assertTrue(value_synced_with_iptc(test_description, metadata,
'Iptc.Application2.Caption'))
test_description = 'New, different test description'
self.assertFalse(value_synced_with_iptc(test_description, metadata,
'Iptc.Application2.Caption'))
# Add iterable metadata.
test_keywords = ['IPTC', 'test', 'keywords']
metadata['Iptc.Application2.Keywords'] = test_keywords
metadata.writeMetadata()
self.assertEqual(metadata['Iptc.Application2.Keywords'],
('IPTC', 'test', 'keywords'))
# Test synchronization status of iterable metadata.
self.assertTrue(value_synced_with_iptc(test_keywords, metadata,
'Iptc.Application2.Keywords'))
test_keywords.append('modified')
self.assertFalse(value_synced_with_iptc(test_keywords, metadata,
'Iptc.Application2.Keywords'))
# Test synchronization of nonexistent/empty iterable metadata.
_del_img_key(metadata, 'Iptc.Application2.Keywords')
metadata.writeMetadata()
self.assertFalse('Iptc.Application2.Keywords' in metadata.iptcKeys())
empty_list = []
self.assertTrue(value_synced_with_iptc(empty_list, metadata,
'Iptc.Application2.Keywords'))
none_argument = None
self.assertTrue(value_synced_with_iptc(none_argument, metadata,
'Iptc.Application2.Keywords'))
# Test synchronization of iterables that are sorted differently.
test_keywords = ['c', 'a', 'b']
metadata['Iptc.Application2.Keywords'] = test_keywords
metadata.writeMetadata()
test_keywords.sort()
self.assertEqual(test_keywords, ['a', 'b', 'c'])
self.assertTrue(value_synced_with_iptc(test_keywords, metadata,
'Iptc.Application2.Keywords'))
# Test synchronization of iterables of length one.
test_keywords = ['a']
try:
metadata['Iptc.Application2.Keywords'] = test_keywords
except TypeError:
pass
metadata.writeMetadata()
metadata = pyexiv2.Image(file_path)
metadata.readMetadata()
self.assertTrue(value_synced_with_iptc(test_keywords, metadata,
'Iptc.Application2.Keywords'))
# Test synchronization of empty/nonexistent string metadata.
empty_string = ""
_del_img_key(metadata, 'Iptc.Application2.Caption')
self.assertTrue(value_synced_with_iptc(empty_string, metadata,
'Iptc.Application2.Caption'))
# Clean up.
os.remove(file_path)