testGetStartOnUnfocusedTextarea() {
    input.value = 'White Blood Cells';
    input.focus();
    selection.setCursorPosition(input, 5);

    assertEquals(
        'getStart on input should return where we put the cursor', 5,
        selection.getStart(input));

    assertEquals(
        'getStart on unfocused textarea should succeed without error', 0,
        selection.getStart(textarea));
  }
Test to make sure there's no error when getting the range of an unselected
textarea. See bug 1274027.