def test_plte_colors():
fn = _make_tmp_png_filename()
res = cli.main([
'--quiet-zone=green', '--finder-dark=purple', '--finder-light=yellow',
'--output={0}'.format(fn), 'test'
])
with open(fn, 'rb') as f:
data = io.BytesIO(f.read())
os.unlink(fn)
assert 0 == res
reader = PNGReader(file=data)
reader.preamble()
assert not reader.greyscale
palette = reader.palette()
assert 5 == len(palette)
assert (0, 0, 0) in palette
assert (255, 255, 255) in palette
assert colors._color_to_rgb('green') in palette
assert colors._color_to_rgb('purple') in palette
assert colors._color_to_rgb('yellow') in palette
def test_plte_colors():
qr = segno.make_qr('test')
buff = io.BytesIO()
dark = (0, 0, 139)
light = (255, 255, 255)
qr.save(buff,
kind='png',
dark=dark,
light=light,
quiet_zone='green',
finder_dark='purple',
finder_light='yellow')
buff.seek(0)
reader = PNGReader(file=buff)
reader.preamble()
assert not reader.greyscale
palette = reader.palette()
assert 5 == len(palette)
assert dark in palette
assert light in palette
assert colors._color_to_rgb('green') in palette
assert colors._color_to_rgb('purple') in palette
assert colors._color_to_rgb('yellow') in palette
def test_rgba_vs_rgb_conflict():
with pytest.raises(ValueError):
colors._color_to_rgb('#949494E8')
def test_illegal5():
with pytest.raises(ValueError):
colors._color_to_rgb((256, 0, 0))
def test_illegal4():
with pytest.raises(ValueError):
colors._color_to_rgb((0, 0, 256))
def test_illegal3():
with pytest.raises(ValueError):
colors._color_to_rgb((300, 300, 300))
def test_illegal2():
with pytest.raises(ValueError):
colors._color_to_rgb((1, 2, 3, 256))
def test_valid_hexcodes_rgb(name, expected):
rgb = colors._color_to_rgb(name)
assert 3 == len(rgb)
assert expected == rgb
def test_illegal():
with pytest.raises(ValueError):
colors._color_to_rgb('unknown')
