/* Any copyright is dedicated to the Public Domain.
 http://creativecommons.org/publicdomain/zero/1.0/ */

"use strict";

// Test that the box model view continues to work after the page is reloaded

add_task(async function() {
  const tab = await addTab(URL_ROOT + "doc_boxmodel_iframe1.html");
  const browser = tab.linkedBrowser;
  const { inspector, boxmodel } = await openLayoutView();

  info("Test that the box model view works on the first page");
  await assertBoxModelView(inspector, boxmodel, browser);

  info("Reload the page");
  const onMarkupLoaded = waitForMarkupLoaded(inspector);
  await reloadBrowser();
  await onMarkupLoaded;

  info("Test that the box model view works on the reloaded page");
  await assertBoxModelView(inspector, boxmodel, browser);
});

async function assertBoxModelView(inspector, boxmodel, browser) {
  await selectNode("p", inspector);

  info("Checking that the box model view shows the right value");
  const paddingElt = boxmodel.document.querySelector(
    ".boxmodel-padding.boxmodel-top > span"
  );
  is(paddingElt.textContent, "50");

  info("Listening for box model view changes and modifying the padding");
  const onUpdated = waitForUpdate(inspector);
  await setStyle(browser, "p", "padding", "20px");
  await onUpdated;
  ok(true, "Box model view got updated");

  info("Checking that the box model view shows the right value after update");
  is(paddingElt.textContent, "20");
}
