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Test Info:
/* Any copyright is dedicated to the Public Domain.
"use strict";
async function test() {
waitForExplicitFinish();
const { ed, win } = await setup();
ok(ed.isClean(), "default isClean");
ok(!ed.canUndo(), "default canUndo");
ok(!ed.canRedo(), "default canRedo");
ed.setText("Hello, World!");
ok(!ed.isClean(), "isClean");
ok(ed.canUndo(), "canUndo");
ok(!ed.canRedo(), "canRedo");
ed.undo();
ok(ed.isClean(), "isClean after undo");
ok(!ed.canUndo(), "canUndo after undo");
ok(ed.canRedo(), "canRedo after undo");
ed.setText("What's up?");
ed.setClean();
ok(ed.isClean(), "isClean after setClean");
ok(ed.canUndo(), "canUndo after setClean");
ok(!ed.canRedo(), "canRedo after setClean");
teardown(ed, win);
}