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#!/usr/bin/env python
# -*- coding: utf-8 -*-
""" Test the nearest matching hex color lookup """
import time
from random import randint
from colored.hexadecimal import Hex
from colored import fore, back, style
from colored.library import Library
def compare_with_expected(in_hex, expected):
""" Contribution by Fredrik Klasson. """
hexad = Hex()
nearest = hexad.find(in_hex)
# Look up the matched hex value (e.g. xterm colors 10 and 46 are
# the same hex value)
match = Library.HEX_COLORS[nearest] == Library.HEX_COLORS[expected]
e_str = '%s%s##%s' % (fore(expected), back(expected), style('reset'))
n_str = '%s%s##%s' % (fore(nearest), back(nearest), style('reset'))
print("%s: %s => %s = %s" % ('pass' if match else 'FAIL', in_hex, n_str, e_str))
return match
def main():
""" Contribution by Fredrik Klasson. """
print(' Nearest Expected')
test_set = {
'1': ('#7f0000', '#800000', '#810000'),
'2': ('#007f00', '#008000', '#008100'),
'4': ('#00007f', '#000080', '#000081'),
'10': ('#00fe00', '#00ff00', '#01ff00'),
}
all_ok = True
for expected, hexes in test_set.items():
for hex_code in hexes:
okay = compare_with_expected(hex_code, expected)
all_ok = all_ok and okay
try:
T_sta = time.perf_counter()
print('-' * 78)
for y in range(0, 0xF):
r_row = ''
g_row = ''
b_row = ''
i_row = ''
for x in range(0, 0xF):
c = x + y * 0xF
hex_code = '#%02x0000' % (c,)
r_row += '%s%s#' % (fore(hex_code), back(hex_code))
hex_code = '#00%02x00' % (c,)
g_row += '%s%s#' % (fore(hex_code), back(hex_code))
hex_code = '#0000%02x' % (c,)
b_row += '%s%s#' % (fore(hex_code), back(hex_code))
hex_code = '#' + ('%02x' % (c,)) * 3
i_row += '%s%s#' % (fore(hex_code), back(hex_code))
print('%s%s %s%s %s%s %s%s' % (
r_row, style('reset'), g_row, style('reset'), b_row, style('reset'), i_row, style('reset')))
dT = time.perf_counter() - T_sta
print('Lookup time: %0.4f s => %0.4f s/lookup' % (dT, dT / (2 * 4 * 0xFF)))
print('-' * 78)
except Exception as e:
print('Whopsie, something %s-ish went wrong: %s' % (e.__class__.__name__, e))
import traceback
traceback.print_exc()
all_ok = False
# This is just for fun, almost... let's call it a
# "non-deterministic check that it doesn't throw any exceptions"
try:
T_sta = time.perf_counter()
for y in range(0, 20):
for x in range(0, 30):
rnd = randint(0, 0xffffff)
hex_code = '#%06x' % (rnd,)
hexinv = '#%06x' % (0xffffff - rnd,)
print('%s%s::' % (fore(hexinv), back(hex_code)), end='')
print(style('reset'))
dT = time.perf_counter() - T_sta
print('Lookup time: %0.4f s => %0.4f s/lookup' % (dT, dT / (2 * 30 * 20)))
except Exception as e:
print('Whopsie, something %s-ish went wrong: %s' % (e.__class__.__name__, e))
all_ok = False
return all_ok
if __name__ == "__main__":
ok = main()
exit(0 if ok else 1)
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