def test_rotate(angle_offset):
# Run several times to ensure that adding 360 to rotation angles has no effect
clip = BitmapClip([["AAAA", "BBBB", "CCCC"], ["ABCD", "BCDE", "CDEA"]], fps=1)
clip1 = rotate(clip, 0 + angle_offset)
target1 = BitmapClip([["AAAA", "BBBB", "CCCC"], ["ABCD", "BCDE", "CDEA"]], fps=1)
assert clip1 == target1
clip2 = rotate(clip, 90 + angle_offset)
target2 = BitmapClip(
[["ABC", "ABC", "ABC", "ABC"], ["DEA", "CDE", "BCD", "ABC"]], fps=1
)
assert clip2 == target2, clip2.to_bitmap()
clip3 = rotate(clip, 180 + angle_offset)
target3 = BitmapClip([["CCCC", "BBBB", "AAAA"], ["AEDC", "EDCB", "DCBA"]], fps=1)
assert clip3 == target3
clip4 = rotate(clip, 270 + angle_offset)
target4 = BitmapClip(
[["CBA", "CBA", "CBA", "CBA"], ["CBA", "DCB", "EDC", "AED"]], fps=1
)
assert clip4 == target4
def test_rotate_nonstandard_angles(util):
# Test rotate with color clip
clip = ColorClip([600, 400], [150, 250, 100]).with_duration(1).with_fps(5)
clip = rotate(clip, 20)
clip.write_videofile(os.path.join(util.TMP_DIR, "color_rotate.webm"))