def test_metadata_extraction(self):
from os import path
import datetime
from fractions import Fraction
try:
from tardis.tardis_portal.filters.exif import EXIFFilter
except:
raise SkipTest()
f = EXIFFilter("EXIF", "http://exif.schema")
filename = path.join(path.abspath(path.dirname(__file__)), 'test.jpg')
metadata = {
'Exif.Thumbnail.ResolutionUnit': 2,
'Exif.Photo.ColorSpace': 65535,
'Exif.Image.Orientation': 1,
'Exif.Photo.PixelYDimension': 768L,
'Exif.Image.XResolution': Fraction(72, 1),
'Exif.Photo.PixelXDimension': 978L,
'Exif.Image.ExifTag': 164L,
'Exif.Thumbnail.Compression': 6,
'Exif.Image.DateTime': datetime.datetime(2005, 7, 8, 19, 17, 44),
'Exif.Image.YResolution': Fraction(72, 1),
'Exif.Image.ResolutionUnit': 2,
'Exif.Thumbnail.YResolution': Fraction(72, 1),
'Exif.Thumbnail.XResolution': Fraction(72, 1),
'Exif.Image.Software': 'Adobe Photoshop Elements 2.0'
}
self.assertEqual(f.getExif(filename), metadata)
def test_save_metadata(self):
from os import path
try:
from tardis.tardis_portal.filters.exif import EXIFFilter
except:
raise SkipTest()
from tardis.tardis_portal import models
filename = path.join(path.abspath(path.dirname(__file__)), 'test.jpg')
exp = models.Experiment(title='test exp1',
institution_name='monash',
approved=True,
created_by=self.user,
public=False)
exp.save()
dataset = models.Dataset(description="dataset description...",
experiment=exp)
dataset.save()
df_file = models.Dataset_File(dataset=dataset,
filename='file1.txt',
url=filename,
protocol='')
df_file.save()
f = EXIFFilter("EXIF", "http://exif.schema")
metadata = f.getExif(filename)
parameters = f.getParamaters(f.getSchema(), metadata)
ps = f.saveExifMetadata(df_file, f.getSchema(), metadata)
self.assertEqual(len(ps.datafileparameter_set.all()), 14)
def test_create_schema(self):
try:
from tardis.tardis_portal.filters.exif import EXIFFilter
except:
raise SkipTest()
f = EXIFFilter("EXIF", "http://exif.schema")
self.assertEqual(str(f.getSchema()),
"Datafile schema: http://exif.schema")
def test_update_schema(self):
from os import path
try:
from tardis.tardis_portal.filters.exif import EXIFFilter
except:
raise SkipTest()
f = EXIFFilter("EXIF", "http://exif.schema")
filename = path.join(path.abspath(path.dirname(__file__)), 'test.jpg')
self.assertEqual(
len(f.getParamaters(f.getSchema(), f.getExif(filename))), 14)
def test_parameter_filters(self):
from os import path
import datetime
from fractions import Fraction
try:
from tardis.tardis_portal.filters.exif import EXIFFilter
except:
raise SkipTest()
metadata = {
'Exif.Thumbnail.ResolutionUnit': 2,
'Exif.Photo.ColorSpace': 65535,
'Exif.Image.Orientation': 1,
'Exif.Photo.PixelYDimension': 768L,
'Exif.Image.XResolution': Fraction(72, 1),
'Exif.Photo.PixelXDimension': 978L,
'Exif.Image.ExifTag': 164L,
'Exif.Thumbnail.Compression': 6,
'Exif.Image.DateTime': datetime.datetime(2005, 7, 8, 19, 17, 44),
'Exif.Image.YResolution': Fraction(72, 1),
'Exif.Image.ResolutionUnit': 2,
'Exif.Thumbnail.YResolution': Fraction(72, 1),
'Exif.Thumbnail.XResolution': Fraction(72, 1),
'Exif.Image.Software': 'Adobe Photoshop Elements 2.0'
}
f = EXIFFilter(
"EXIF",
"http://exif.schema",
tagsToFind=["Exif.Photo.ColorSpace", 'Exif.Image.Orientation'])
s = f.getSchema()
self.assertEqual(len(f.getParamaters(s, metadata)), 2)
f = EXIFFilter(
"EXIF",
"http://exif.schema",
tagsToExclude=["Exif.Photo.ColorSpace", 'Exif.Image.Orientation'])
s = f.getSchema()
self.assertEqual(len(f.getParamaters(s, metadata)), 12)
