it("does not move when at end of document", () => {
   const initial = lastGUI(childByClass(editor.guiRoot, "TEI")!)!;
   caretManager.setCaret(initial, 0);
   caretCheck(editor, initial, 0, "initial");
   caretManager.move("down");
   // Same position
   caretCheck(editor, initial, 0, "moved once");
 });

  it("typing text in phantom text does nothing", () => {
    const ref = childByClass(ps[2], "ref")!;
    const initial = ref.childNodes[1];

    // Make sure we're looking at the right thing.
    assert.isTrue(isElement(initial) && initial.classList.contains("_phantom"),
                  "initial is phantom");
    assert.equal(initial.textContent, "(", "initial's value");
    caretManager.setCaret(initial, 1);

    editor.type(" ");
    assert.equal(initial.textContent, "(", "initial's value after");
  });

 it("returns the first match when something matches", () => {
   assert.equal(domutil.childByClass(ul, "a"), a[0]);
 });