def test_multi_unit_operations():
xx = Unit("xx")
yy = Unit("yy")
assert str(xx(2) + yy(3)) == "calc(2xx + 3yy)"
assert str(xx(2) + yy(3) - xx(2)) == "3yy"
assert str((xx(2) + yy(3)) * 2 - yy(2)) == "calc(4xx + 4yy)"
assert str((xx(100) - yy(30)) / 3) == "calc(100xx / 3 - 10yy)"
assert str(xx(100) - yy(30) / 3) == "calc(100xx - 10yy)"
assert str(xx(100) / 3 + yy(30) - xx(120) / 4 - yy(30)) == "calc(10xx / 3)"
assert str(xx(2) + yy(3) - xx(2) - yy(9) / 3) == "0"
def test12():
# https://css-tricks.com/logic-in-media-queries/#article-header-id-8
expected = ("@media "
"only screen and (min-width: 100px), "
"not all and (min-width: 100px), "
"not print and (min-height: 100px), "
"(color), "
"(min-height: 100px) and (max-height: 1000px), "
"handheld and (orientation: landscape)")
only, screen, min, width, all, print, height, color, max, handheld, orientation, landscape = Var.many(
"only screen min width all print height color max handheld orientation landscape"
)
px = Unit("px")
m = media(
only(screen) & {min - width: 100 * px},
~all & {min - width: 100 * px},
~print & {min - height: 100 * px},
{color},
_ & {min - height: 100 * px} & {max - height: 1000 * px},
handheld & {orientation: landscape},
)
assert m == expected
minw = 100 * px
minh = 100 * px
maxh = 1000 * px
m = media(
only(screen) & {min - width: minw},
~all & {min - width: minw},
~print & {min - height: minh},
{color},
_ & {min - height: minh} & {max - height: maxh},
handheld & {orientation: landscape},
)
assert m == expected
minw = {min - width: 100 * px}
minh = {min - height: 100 * px}
maxh = {max - height: 1000 * px}
m = media(
only(screen) & minw,
~all & minw,
~print & minh,
{color},
_ & minh & maxh,
handheld & {orientation: landscape},
)
assert m == expected
def test_unit_initialization():
xx = Unit("xx")
assert str(xx(3)) == "3xx"
assert str(3 * xx) == "3xx"
assert str(xx * 3) == "3xx"
assert str(xx(-3.1)) == "-3.1xx"
assert str(-3.1 * xx) == "-3.1xx"
assert str(xx * -3.1) == "-3.1xx"
assert str(-xx(3.1)) == "-3.1xx"
assert str(-(3.1 * xx)) == "-3.1xx"
assert str(-(xx * 3.1)) == "-3.1xx"
def test_is_quantified_unit():
assert is_quantified_unit(1) is False
assert is_quantified_unit(1.1) is False
assert is_quantified_unit(Decimal(1.1)) is False
assert is_quantified_unit(Decimal("1.1")) is False
assert is_quantified_unit("1.1") is False
px, em = Unit.many("px em")
assert is_quantified_unit(px(3)) is True
assert is_quantified_unit(px(3) * 3) is True
assert is_quantified_unit(px(3) * 3 + px(2)) is True
assert is_quantified_unit(px(3) * 3 + em(2)) is False
def test_is_addition_part():
assert is_addition_part(1) is False
assert is_addition_part(1.1) is False
assert is_addition_part(Decimal(1.1)) is False
assert is_addition_part(Decimal("1.1")) is False
assert is_addition_part("1.1") is False
px, em = Unit.many("px em")
assert is_addition_part(px(3)) is True
assert is_addition_part(px(3) * 3) is True
assert is_addition_part(px(3) * 3 + px(2)) is True
assert is_addition_part(px(3) * 3 + em(2)) is True
def test_is_number():
assert is_number(1) is True
assert is_number(1.1) is True
assert is_number(Decimal(1.1)) is True
assert is_number(Decimal("1.1")) is True
assert is_number("1.1") is False
px, em = Unit.many("px em")
assert is_number(px(3)) is False
assert is_number(px(3) * 3) is False
assert is_number(px(3) * 3 + px(2)) is False
assert is_number(px(3) * 3 + em(2)) is False
def test_var_many():
aa, bb = Var.many("aa bb")
assert aa == "aa"
assert isinstance(aa, Var)
assert bb == "bb"
assert isinstance(bb, Var)
cc, dd = Var.many("cc", "dd")
assert cc == "cc"
assert isinstance(cc, Var)
assert dd == "dd"
assert isinstance(dd, Var)
ee, ff = Unit.many("ee", "ff")
assert ee == "ee"
assert isinstance(ee, Unit)
assert ff == "ff"
assert isinstance(ff, Unit)
def test_unit_operations():
xx = Unit("xx")
assert str(xx(3) + 2 * xx) == "5xx"
assert str(xx(3) + 2) == "3xx+2"
assert str(2 + xx(3)) == "2+3xx"
assert str(xx(3) - 2 * xx) == "1xx"
assert str(xx(3) - 3 * xx) == "0xx"
assert str(xx(3) - 4 * xx) == "-1xx"
assert str(xx(3) - 2) == "3xx-2"
assert str(2 - xx(3)) == "2-3xx"
assert str(xx(3) * 2 * xx) == "6xx*xx"
assert str(xx(3) * xx(2)) == "3xx*2xx"
assert str(xx(3) * 2) == "6xx"
assert str(2 * xx(3)) == "6xx"
assert str(xx(3) / 2 * xx) == "1.5xx*xx"
assert str(xx(3) / xx(2)) == "3xx/2xx"
assert str(xx(3) / 2) == "1.5xx"
assert str(2 / xx(3)) == "2/3xx"
def test9():
all, max, width = Var.many("all max width")
em = Unit("em")
assert (media(~all & {max - width: 40 *
em}) == "@media not all and (max-width: 40em)")