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import unittest
from color_xy import color_to_xy, xy_to_color
def color_to_xy_wrap(color: int, color_count: int, offset: float) -> (int, int):
(x, y) = color_to_xy(color, color_count, offset)
xi = int(x * 1000.0)
yi = int(y * 1000.0)
return (xi, yi)
def xy_to_color_wrap(xy: (int, int), color_count: int, offset: float) -> int:
(x, y) = xy
xf = float(x) / 1000.0
yf = float(y) / 1000.0
return xy_to_color((xf, yf), color_count, offset)
class TestColorXY(unittest.TestCase):
def test_color_to_xy_without_offset(self):
offset = 0.0
# 0 degrees
self.assertEqual(color_to_xy_wrap(0, 4, offset), (1000, 0))
# 90 degrees
self.assertEqual(color_to_xy_wrap(1, 4, offset), (0, 1000))
# 180 degrees
self.assertEqual(color_to_xy_wrap(2, 4, offset), (-1000, 0))
# 270 degrees
self.assertEqual(color_to_xy_wrap(3, 4, offset), (0, -1000))
# 45 degrees
self.assertEqual(color_to_xy_wrap(1, 8, offset), (707, 707))
def test_color_to_xy_with_offset(self):
offset = 0.5 # same as rotating by 180 degrees
# 0 degrees
self.assertEqual(color_to_xy_wrap(0, 4, offset), (-1000, 0))
# 90 degrees
self.assertEqual(color_to_xy_wrap(1, 4, offset), (0, -1000))
# 180 degrees
self.assertEqual(color_to_xy_wrap(2, 4, offset), (1000, 0))
# 270 degrees
self.assertEqual(color_to_xy_wrap(3, 4, offset), (0, 1000))
def test_xy_to_color_without_offset(self):
offset = 0.0
# 0 degrees
self.assertEqual(xy_to_color_wrap((1000, 0), 4, offset), 0)
# 90 degrees
self.assertEqual(xy_to_color_wrap((0, 1000), 4, offset), 1)
# 180 degrees
self.assertEqual(xy_to_color_wrap((-1000, 0), 4, offset), 2)
# 270 degrees
self.assertEqual(xy_to_color_wrap((0, -1000), 4, offset), 3)
# 45 degrees
self.assertEqual(xy_to_color_wrap((707, 707), 8, offset), 1)
def test_xy_to_color_with_offset(self):
offset = 0.5 # same as rotating by 180 degrees
# 0 degrees
self.assertEqual(xy_to_color_wrap((-1000, 0), 4, offset), 0)
# 90 degrees
self.assertEqual(xy_to_color_wrap((0, -1000), 4, offset), 1)
# 180 degrees
self.assertEqual(xy_to_color_wrap((1000, 0), 4, offset), 2)
# 270 degrees
self.assertEqual(xy_to_color_wrap((0, 1000), 4, offset), 3)
if __name__ == '__main__':
unittest.main()
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