This is a testharness.js-based test.
[FAIL] execCommand('selectAll') should select all content in the document even if the document body ends with editable content
  assert_false: Selection should not be collapsed after calling document.execCommand("selectAll") expected false got true
[FAIL] execCommand('selectAll') should select all content in the document when selection is in <input>
  assert_false: Selection should not be collapsed after calling document.execCommand("selectAll") expected false got true
[FAIL] execCommand('selectAll') should select all content in the document when selection is in <textarea>
  assert_false: Selection should not be collapsed after calling document.execCommand("selectAll") expected false got true
Harness: the test ran to completion.