Pillow/Tests/test_image_getdata.py

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from PIL import Image
from .helper import PillowTestCase, hopper
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class TestImageGetData(PillowTestCase):
def test_sanity(self):
data = hopper().getdata()
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len(data)
list(data)
self.assertEqual(data[0], (20, 20, 70))
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def test_roundtrip(self):
def getdata(mode):
im = hopper(mode).resize((32, 30), Image.NEAREST)
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data = im.getdata()
return data[0], len(data), len(list(data))
self.assertEqual(getdata("1"), (0, 960, 960))
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self.assertEqual(getdata("L"), (17, 960, 960))
self.assertEqual(getdata("I"), (17, 960, 960))
self.assertEqual(getdata("F"), (17.0, 960, 960))
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self.assertEqual(getdata("RGB"), ((11, 13, 52), 960, 960))
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self.assertEqual(getdata("RGBA"), ((11, 13, 52, 255), 960, 960))
self.assertEqual(getdata("CMYK"), ((244, 242, 203, 0), 960, 960))
self.assertEqual(getdata("YCbCr"), ((16, 147, 123), 960, 960))