Pillow/Tests/test_file_gimpgradient.py

Ignoring revisions in .git-blame-ignore-revs. Click here to bypass and see the normal blame view.

127 lines
2.2 KiB
Python
Raw Normal View History

from __future__ import annotations
2024-01-20 14:23:03 +03:00
from PIL import GimpGradientFile, ImagePalette
def test_linear_pos_le_middle() -> None:
2020-02-12 19:29:19 +03:00
# Arrange
middle = 0.5
pos = 0.25
2020-02-12 19:29:19 +03:00
# Act
ret = GimpGradientFile.linear(middle, pos)
2020-02-12 19:29:19 +03:00
# Assert
assert ret == 0.25
def test_linear_pos_le_small_middle() -> None:
2020-02-12 19:29:19 +03:00
# Arrange
middle = 1e-11
pos = 1e-12
2020-02-12 19:29:19 +03:00
# Act
ret = GimpGradientFile.linear(middle, pos)
2020-02-12 19:29:19 +03:00
# Assert
assert ret == 0.0
def test_linear_pos_gt_middle() -> None:
2020-02-12 19:29:19 +03:00
# Arrange
middle = 0.5
pos = 0.75
2020-02-12 19:29:19 +03:00
# Act
ret = GimpGradientFile.linear(middle, pos)
2020-02-12 19:29:19 +03:00
# Assert
assert ret == 0.75
def test_linear_pos_gt_small_middle() -> None:
2020-02-12 19:29:19 +03:00
# Arrange
middle = 1 - 1e-11
pos = 1 - 1e-12
2020-02-12 19:29:19 +03:00
# Act
ret = GimpGradientFile.linear(middle, pos)
2020-02-12 19:29:19 +03:00
# Assert
assert ret == 1.0
def test_curved() -> None:
2020-02-12 19:29:19 +03:00
# Arrange
middle = 0.5
pos = 0.75
2014-08-26 13:21:08 +04:00
2020-02-12 19:29:19 +03:00
# Act
ret = GimpGradientFile.curved(middle, pos)
2014-08-26 13:21:08 +04:00
2020-02-12 19:29:19 +03:00
# Assert
assert ret == 0.75
2014-08-26 13:21:08 +04:00
def test_sine() -> None:
2020-02-12 19:29:19 +03:00
# Arrange
middle = 0.5
pos = 0.75
2020-02-12 19:29:19 +03:00
# Act
ret = GimpGradientFile.sine(middle, pos)
2020-02-12 19:29:19 +03:00
# Assert
assert ret == 0.8535533905932737
def test_sphere_increasing() -> None:
2020-02-12 19:29:19 +03:00
# Arrange
middle = 0.5
pos = 0.75
2020-02-12 19:29:19 +03:00
# Act
ret = GimpGradientFile.sphere_increasing(middle, pos)
2019-06-13 18:53:42 +03:00
2020-02-12 19:29:19 +03:00
# Assert
assert round(abs(ret - 0.9682458365518543), 7) == 0
def test_sphere_decreasing() -> None:
2020-02-12 19:29:19 +03:00
# Arrange
middle = 0.5
pos = 0.75
2020-02-12 19:29:19 +03:00
# Act
ret = GimpGradientFile.sphere_decreasing(middle, pos)
2019-06-13 18:53:42 +03:00
2020-02-12 19:29:19 +03:00
# Assert
assert ret == 0.3385621722338523
def test_load_via_imagepalette() -> None:
2020-02-12 19:29:19 +03:00
# Arrange
test_file = "Tests/images/gimp_gradient.ggr"
# Act
palette = ImagePalette.load(test_file)
# Assert
# load returns raw palette information
assert len(palette[0]) == 1024
assert palette[1] == "RGBA"
def test_load_1_3_via_imagepalette() -> None:
2020-02-12 19:29:19 +03:00
# Arrange
# GIMP 1.3 gradient files contain a name field
test_file = "Tests/images/gimp_gradient_with_name.ggr"
# Act
palette = ImagePalette.load(test_file)
# Assert
# load returns raw palette information
assert len(palette[0]) == 1024
assert palette[1] == "RGBA"