<div style="${leftWhiteSpace}">abc${caretInLeft}</div>` +
        `<span style="${rightWhiteSpace}"><b>${caretInRight}def<br>ghi</b></span>`,
    expectedHTML: aAttrsInLeftBlock => {
      return [
        `<div style="${leftWhiteSpace}">abc<b ${aAttrsInLeftBlock}>def</b></div>` +
          `<span style="${rightWhiteSpace}"><b>ghi</b></span>`,
        `<div style="${leftWhiteSpace}">abc<span ${aAttrsInLeftBlock}><b>def</b></span></div>` +
          `<span style="${rightWhiteSpace}"><b>ghi</b></span>`,
     