ty("flex-basis");
      target.style.flexBasis = obj.value;
      assert_not_equals(target.style.flexBasis, "", "flex-basis value is accepted");

      target.style.removeProperty("width");
      if ("width_value" in obj) {
        target.style.width = obj.width_value;
        assert_not_equals(target.style.width, "", "width value is accepted");
      }

      assert_equals(target_cs.width, obj.expected, "resulting width is correct");
    }, `resolved value for width resulting from flex-basis: ${obj.value}$