| Testing upper left |
| PASS: range.startContainer == element.firstChild. |
| PASS: range.startOffset == 0. |
| Testing upper right |
| PASS: range.startContainer == element.firstChild. |
| PASS: range.startOffset == 23. |
| Testing lower left |
| PASS: range.startContainer == element.firstChild. |
| PASS: range.startOffset == 72. |
| Testing lower right |
| PASS: range.startContainer == element.firstChild. |
| PASS: range.startOffset == 95. |
| Testing somewhere in the middle |
| PASS: range.startContainer == element.firstChild. |
| PASS: range.startOffset == 36. |
| Testing negative values |
| PASS: range is null. |
| PASS: range is null. |
| PASS: range is null. |
| Testing values larger than the viewport |
| PASS: range is null. |
| PASS: range is null. |
| PASS: range is null. |
| |
