);
test_computed_value("border-inline-end-width", "calc(10px - 0.5em)", "0px");
test_computed_value("border-inline-end-width", "thick", thickWidth);

test_computed_value("border-inline-width", "10px");
test_computed_value("border-inline-width", "10px 20px");
test_computed_value("border-inline-width", "10px 10px", "10px");
test(() => {
  box.style.borderInlineStartWidth = '10px';
  box.style.borderInlineEndWidth = '10px';

  box.style.borderInlineStartStyle = 'groove';
  box.style.borderInlineEndStyle = 'sol