 `${t2.name}: should restore one of the innerHTML values`
          );
        }
      } else {
        assert_equals(
          editingHost.innerHTML,
          initialValue,
          `${t2.name}: should restore the initial innerHTML value`
        );
      }
      assert_true(ret, `${t2.name}: execCommand("undo") should return true`);
    }, `${t.name} - first undo`);
    test(t3 => {
      const ret = contentDocument.execCommand("redo");
      assert_equals(
        editingHost.innerHTML,
        newVal