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130 lines
4.6 KiB
Python
130 lines
4.6 KiB
Python
from __future__ import division
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from helper import unittest, PillowTestCase
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import time
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from PIL import Image
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class TestColorLut3DCoreAPI(PillowTestCase):
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def generate_unit_table(self, channels, size):
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if isinstance(size, tuple):
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size1D, size2D, size3D = size
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else:
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size1D, size2D, size3D = (size, size, size)
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table = [
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[
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r / float(size1D-1) if size1D != 1 else 0,
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g / float(size2D-1) if size2D != 1 else 0,
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b / float(size3D-1) if size3D != 1 else 0,
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r / float(size1D-1) if size1D != 1 else 0,
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g / float(size2D-1) if size2D != 1 else 0,
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b / float(size3D-1) if size3D != 1 else 0,
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][:channels]
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for b in range(size3D)
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for g in range(size2D)
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for r in range(size1D)
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]
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return (
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channels, size1D, size2D, size3D,
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[item for sublist in table for item in sublist])
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def test_wrong_arguments(self):
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im = Image.new('RGB', (10, 10), 0)
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with self.assertRaisesRegexp(ValueError, "filter"):
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im.im.color_lut_3d('RGB', Image.CUBIC,
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*self.generate_unit_table(3, 3))
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with self.assertRaisesRegexp(ValueError, "image mode"):
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im.im.color_lut_3d('wrong', Image.LINEAR,
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*self.generate_unit_table(3, 3))
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with self.assertRaisesRegexp(ValueError, "table_channels"):
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im.im.color_lut_3d('RGB', Image.LINEAR,
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*self.generate_unit_table(6, 3))
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with self.assertRaisesRegexp(ValueError, "table_channels"):
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im.im.color_lut_3d('RGB', Image.LINEAR,
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*self.generate_unit_table(1, 3))
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with self.assertRaisesRegexp(ValueError, "table_channels"):
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im.im.color_lut_3d('RGB', Image.LINEAR,
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*self.generate_unit_table(2, 3))
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with self.assertRaisesRegexp(ValueError, "Table size"):
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im.im.color_lut_3d('RGB', Image.LINEAR,
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*self.generate_unit_table(3, (1, 3, 3)))
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with self.assertRaisesRegexp(ValueError, "Table size"):
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im.im.color_lut_3d('RGB', Image.LINEAR,
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*self.generate_unit_table(3, (66, 3, 3)))
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def test_correct_arguments(self):
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im = Image.new('RGB', (10, 10), 0)
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im.im.color_lut_3d('RGB', Image.LINEAR,
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*self.generate_unit_table(3, 3))
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im.im.color_lut_3d('CMYK', Image.LINEAR,
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*self.generate_unit_table(4, 3))
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im.im.color_lut_3d('RGB', Image.LINEAR,
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*self.generate_unit_table(3, (2, 3, 3)))
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im.im.color_lut_3d('RGB', Image.LINEAR,
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*self.generate_unit_table(3, (65, 3, 3)))
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im.im.color_lut_3d('RGB', Image.LINEAR,
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*self.generate_unit_table(3, (3, 65, 3)))
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im.im.color_lut_3d('RGB', Image.LINEAR,
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*self.generate_unit_table(3, (3, 3, 65)))
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def test_wrong_mode(self):
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with self.assertRaisesRegexp(ValueError, "wrong mode"):
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im = Image.new('L', (10, 10), 0)
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im.im.color_lut_3d('RGB', Image.LINEAR,
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*self.generate_unit_table(3, 3))
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with self.assertRaisesRegexp(ValueError, "wrong mode"):
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im = Image.new('RGB', (10, 10), 0)
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im.im.color_lut_3d('L', Image.LINEAR,
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*self.generate_unit_table(3, 3))
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with self.assertRaisesRegexp(ValueError, "wrong mode"):
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im = Image.new('L', (10, 10), 0)
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im.im.color_lut_3d('L', Image.LINEAR,
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*self.generate_unit_table(3, 3))
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with self.assertRaisesRegexp(ValueError, "wrong mode"):
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im = Image.new('RGB', (10, 10), 0)
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im.im.color_lut_3d('RGBA', Image.LINEAR,
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*self.generate_unit_table(3, 3))
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with self.assertRaisesRegexp(ValueError, "wrong mode"):
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im = Image.new('RGB', (10, 10), 0)
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im.im.color_lut_3d('RGB', Image.LINEAR,
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*self.generate_unit_table(4, 3))
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def test_correct_mode(self):
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im = Image.new('RGBA', (10, 10), 0)
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im.im.color_lut_3d('RGBA', Image.LINEAR,
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*self.generate_unit_table(3, 3))
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im = Image.new('RGBA', (10, 10), 0)
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im.im.color_lut_3d('RGBA', Image.LINEAR,
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*self.generate_unit_table(4, 3))
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im = Image.new('RGB', (10, 10), 0)
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im.im.color_lut_3d('HSV', Image.LINEAR,
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*self.generate_unit_table(3, 3))
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im = Image.new('RGB', (10, 10), 0)
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im.im.color_lut_3d('RGBA', Image.LINEAR,
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*self.generate_unit_table(4, 3))
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if __name__ == '__main__':
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unittest.main()
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