https://github.com/python/cpython/commit/54b00c055210d738f5c3fb590ab85bde80b46ac6
commit: 54b00c055210d738f5c3fb590ab85bde80b46ac6
branch: main
author: MonadChains <[email protected]>
committer: tomasr8 <[email protected]>
date: 2026-07-19T11:48:02+02:00
summary:
Improve colorsys coverage (#153982)
* improve colorsys coverage
* add subtest
files:
M Lib/test/test_colorsys.py
diff --git a/Lib/test/test_colorsys.py b/Lib/test/test_colorsys.py
index 74d76294b0b4d4..9dfaef44a6a450 100644
--- a/Lib/test/test_colorsys.py
+++ b/Lib/test/test_colorsys.py
@@ -42,6 +42,10 @@ def test_hsv_values(self):
self.assertTripleEqual(hsv, colorsys.rgb_to_hsv(*rgb))
self.assertTripleEqual(rgb, colorsys.hsv_to_rgb(*hsv))
+ # test 360 phase shift in hue
+ h, s, v = hsv
+ self.assertTripleEqual(rgb, colorsys.hsv_to_rgb(h + 1.0, s, v))
+
def test_hls_roundtrip(self):
for r in frange(0.0, 1.0, 0.2):
for g in frange(0.0, 1.0, 0.2):
@@ -89,6 +93,18 @@ def test_yiq_roundtrip(self):
colorsys.yiq_to_rgb(*colorsys.rgb_to_yiq(*rgb))
)
+ def test_yiq_to_rgb_clamping(self):
+ values = [
+ # rgb, yiq (invalid YIQ values clamped to RGB range)
+ ((1.0, 0.0, 1.0), (0.0, 0.5, 1.0)),
+ ((0.0, 1.0, 0.0), (0.25, -1.0, -1.0)),
+ ((0.0, 0.0, 1.0), (0.0, -1.0, 0.5))
+ ]
+
+ for (rgb, yiq) in values:
+ with self.subTest(rgb=rgb, yiq=yiq):
+ self.assertTripleEqual(rgb, colorsys.yiq_to_rgb(*yiq))
+
def test_yiq_values(self):
values = [
# rgb, yiq
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