pocketpy/tests/800_color32.py

from vmath import color32, rgb, rgba, vec3i

a = color32(100, 200, 255, 120)
assert a.r == 100
assert a.g == 200
assert a.b == 255
assert a.a == 120
assert a.with_r(255).r == 255 
assert a.with_g(255).g == 255
assert a.with_b(255).b == 255
assert a.with_a(255).a == 255 and a.with_a(255).g == a.g

assert a.to_hex() == '#64c8ff78'
assert color32.from_hex('#64c8ff78') == a
assert color32.from_hex('#64c8ff') == a.with_a(255)

assert rgb(100, 200, 255) != a
assert rgba(100, 200, 255, 120 / 255) == a

b = color32(75, 150, 200, 200)
assert a == a and b == b
assert a != b

assert repr(b) == 'color32(75, 150, 200, 200)'

assert color32.from_vec3i(vec3i(100, 200, 255)) == rgb(100, 200, 255)
alpha = a.a / 255
assert a.to_vec3i() == vec3i(int(a.r * alpha), int(a.g * alpha), int(a.b * alpha))

# assert color32.alpha_blend(a, b) == color32(86, 173, 225, 162)

c = rgb(100, 200, 255)
assert c.ansi_fg('xxx') == '\x1b[38;2;100;200;255mxxx\x1b[0m'
assert c.ansi_bg('xxx') == '\x1b[48;2;100;200;255mxxx\x1b[0m'

assert color32.alpha_blend(a, None) == a