class TestImage(unittest.TestCase):
def setUp(self):
self.osr = ImageSlide(file_path('boxes.png'))
def tearDown(self):
self.osr.close()
def test_repr(self):
self.assertEqual(repr(self.osr),
'ImageSlide(%r)' % file_path('boxes.png'))
def test_metadata(self):
self.assertEqual(self.osr.level_count, 1)
self.assertEqual(self.osr.level_dimensions, ((300, 250), ))
self.assertEqual(self.osr.dimensions, (300, 250))
self.assertEqual(self.osr.level_downsamples, (1.0, ))
self.assertEqual(self.osr.get_best_level_for_downsample(0.5), 0)
self.assertEqual(self.osr.get_best_level_for_downsample(3), 0)
self.assertEqual(self.osr.properties, {})
self.assertEqual(self.osr.associated_images, {})
def test_read_region(self):
self.assertEqual(
self.osr.read_region((-10, -10), 0, (400, 400)).size, (400, 400))
def test_read_region_size_dimension_zero(self):
self.assertEqual(
self.osr.read_region((0, 0), 0, (400, 0)).size, (400, 0))
def test_read_region_bad_level(self):
self.assertRaises(OpenSlideError, lambda: self.osr.read_region(
(0, 0), 1, (100, 100)))
def test_read_region_bad_size(self):
self.assertRaises(OpenSlideError, lambda: self.osr.read_region(
(0, 0), 0, (400, -5)))
def test_thumbnail(self):
self.assertEqual(self.osr.get_thumbnail((100, 100)).size, (100, 83))
@maybe_supported
def test_set_cache(self):
self.osr.set_cache(OpenSlideCache(64 << 10))
self.assertEqual(
self.osr.read_region((0, 0), 0, (400, 400)).size, (400, 400))
def test_operations_on_closed_handle(self):
with image_open(file_path("boxes.png")) as img:
osr = ImageSlide(img)
osr.close()
self.assertRaises(AttributeError, lambda: osr.read_region((0, 0), 0, (100, 100)))
# If an Image is passed to the constructor, ImageSlide.close()
# shouldn't close it
self.assertEqual(img.getpixel((0, 0)), 3)
def test_operations_on_closed_handle(self):
with image_open(file_path('boxes.png')) as img:
osr = ImageSlide(img)
osr.close()
self.assertRaises(AttributeError, lambda: osr.read_region(
(0, 0), 0, (100, 100)))
# If an Image is passed to the constructor, ImageSlide.close()
# shouldn't close it
self.assertEqual(img.getpixel((0, 0)), 3)
class TestImage(unittest.TestCase):
def setUp(self):
self.osr = ImageSlide(file_path('boxes.png'))
def tearDown(self):
self.osr.close()
def test_repr(self):
self.assertEqual(repr(self.osr),
'ImageSlide(%r)' % file_path('boxes.png'))
def test_metadata(self):
self.assertEqual(self.osr.level_count, 1)
self.assertEqual(self.osr.level_dimensions, ((300, 250),))
self.assertEqual(self.osr.dimensions, (300, 250))
self.assertEqual(self.osr.level_downsamples, (1.0,))
self.assertEqual(self.osr.get_best_level_for_downsample(0.5), 0)
self.assertEqual(self.osr.get_best_level_for_downsample(3), 0)
self.assertEqual(self.osr.properties, {})
self.assertEqual(self.osr.associated_images, {})
def test_read_region(self):
self.assertEqual(self.osr.read_region((-10, -10), 0, (400, 400)).size,
(400, 400))
@skip_if(image_dimensions_cannot_be_zero, 'Pillow issue #2259')
def test_read_region_size_dimension_zero(self):
self.assertEqual(self.osr.read_region((0, 0), 0, (400, 0)).size,
(400, 0))
def test_read_region_bad_level(self):
self.assertRaises(OpenSlideError,
lambda: self.osr.read_region((0, 0), 1, (100, 100)))
def test_read_region_bad_size(self):
self.assertRaises(OpenSlideError,
lambda: self.osr.read_region((0, 0), 0, (400, -5)))
def test_thumbnail(self):
self.assertEqual(self.osr.get_thumbnail((100, 100)).size, (100, 83))
def test_context_manager(self):
osr = ImageSlide(file_path('boxes.png'))
with osr:
pass
self.assertRaises(AttributeError, lambda: osr.read_region((0, 0), 0,
(100, 100)))
def test_context_manager(self):
osr = ImageSlide(file_path("boxes.png"))
with osr:
pass
self.assertRaises(AttributeError, lambda: osr.read_region((0, 0), 0, (100, 100)))