def test_image_write_tags(self):
""" write tags to an image """
shutil.copy(TEST_PLAIN, self.tmpdir)
img = PictagImage(os.path.join(self.tmpdir, os.path.basename(TEST_PLAIN)))
#no lat/lon/dt set on the image
lat, lon = img.position_get()
self.assertEqual(lat, None)
self.assertEqual(lon, None)
#change data (but still not written to file)
img.position_set(10.0, 20.0)
lat, lon = img.position_get()
self.assertEqual(lat, 10)
self.assertEqual(lon, 20)
#open a new pictag with the same file. data is not written to file so tags should be unavailable
img2 = PictagImage(os.path.join(self.tmpdir, os.path.basename(TEST_PLAIN)))
lat, lon = img2.position_get()
self.assertEqual(lat, None)
self.assertEqual(lon, None)
#write data of img
img.save()
#load file again. data should be written now
img3 = PictagImage(os.path.join(self.tmpdir, os.path.basename(TEST_PLAIN)))
lat, lon = img3.position_get()
self.assertEqual(lat, 10)
self.assertEqual(lon, 20)
def test_image_with_tags(self):
""" read image with tags """
img = PictagImage(TEST_WITH_TAGS)
self.assertEqual(img.path_full, TEST_WITH_TAGS)
lat, lon = img.position_get()
self.assertEqual(lat, 52.918533333333336)
self.assertEqual(lon, 10.900019444444444)
self.assertEqual(img.dt, "28 April 2012, 15:25:39")
def test_image_plain(self):
""" read image without tags """
img = PictagImage(TEST_PLAIN)
self.assertEqual(img.path_full, TEST_PLAIN)
#no lat/lon/dt set on the image
lat, lon = img.position_get()
self.assertEqual(lat, None)
self.assertEqual(lon, None)
self.assertEqual(img.dt, None)