assertWideChars(2, 2, x);
x = assertReversibleAndReturnX(lineThree.line(), 3);
assertWideChars(3, 3, x);
x = assertReversibleAndReturnXAccountingForZeroWidth(lineThree.line(), 4, 1);
assertWideChars(4, 4, x);
x = assertReversibleAndReturnXAccountingForZeroWidth(lineThree.line(), 5, 0);
assertWideCharsAndZeroWidthChars(5, 4, 1, x);
}