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d50445ff30
Similar to the recent adoption of Black. isort is a Python utility to sort imports alphabetically and automatically separate into sections. By using isort, contributors can quickly and automatically conform to the projects style without thinking. Just let the tool do it. Uses the configuration recommended by the Black to avoid conflicts of style. Rewrite TestImageQt.test_deprecated to no rely on import order.
56 lines
1.4 KiB
Python
56 lines
1.4 KiB
Python
from PIL import Image, ImageStat
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from .helper import PillowTestCase, hopper
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class TestImageStat(PillowTestCase):
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def test_sanity(self):
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im = hopper()
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st = ImageStat.Stat(im)
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st = ImageStat.Stat(im.histogram())
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st = ImageStat.Stat(im, Image.new("1", im.size, 1))
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# Check these run. Exceptions will cause failures.
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st.extrema
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st.sum
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st.mean
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st.median
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st.rms
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st.sum2
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st.var
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st.stddev
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self.assertRaises(AttributeError, lambda: st.spam)
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self.assertRaises(TypeError, ImageStat.Stat, 1)
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def test_hopper(self):
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im = hopper()
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st = ImageStat.Stat(im)
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# verify a few values
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self.assertEqual(st.extrema[0], (0, 255))
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self.assertEqual(st.median[0], 72)
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self.assertEqual(st.sum[0], 1470218)
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self.assertEqual(st.sum[1], 1311896)
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self.assertEqual(st.sum[2], 1563008)
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def test_constant(self):
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im = Image.new("L", (128, 128), 128)
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st = ImageStat.Stat(im)
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self.assertEqual(st.extrema[0], (128, 128))
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self.assertEqual(st.sum[0], 128 ** 3)
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self.assertEqual(st.sum2[0], 128 ** 4)
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self.assertEqual(st.mean[0], 128)
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self.assertEqual(st.median[0], 128)
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self.assertEqual(st.rms[0], 128)
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self.assertEqual(st.var[0], 0)
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self.assertEqual(st.stddev[0], 0)
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