igits calc(2 + 2)` is `digits 4`');

test(function () {
  assert_equals(getComputedValueFor('valid_digits_calc_4_minus_2'), 'digits 2');
}, 'Computed value for `text-combine-upright: digits calc(4 - 2)` is `digits 2`');

test(function () {
  assert_equals(getComputedValueFor('valid_digits_calc_6_minus_3'), 'digits 3');
}, 'Computed value for `text-combine-upright: digits calc(6 - 3)` is `digits 3`');

test(function () {
  assert_equals(getComputedValueFor('valid_digits_calc_7_minus_1_minus_2'), 'digits 4');