fune/docshell/test/browser/browser_browsingContext-02.js

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

"use strict";

add_task(async function() {
  await BrowserTestUtils.withNewTab(
    { gBrowser, url: "about:blank" },
    async function(browser) {
      const BASE1 = getRootDirectory(gTestPath).replace(
        "chrome://mochitests/content",
        "http://example.com"
      );
      const BASE2 = getRootDirectory(gTestPath).replace(
        "chrome://mochitests/content",
        "http://test1.example.com"
      );
      const URL = BASE1 + "onload_message.html";
      let sixth = BrowserTestUtils.waitForNewTab(
        gBrowser,
        URL + "#sixth",
        true,
        true
      );
      let seventh = BrowserTestUtils.waitForNewTab(
        gBrowser,
        URL + "#seventh",
        true,
        true
      );
      await ContentTask.spawn(
        browser,
        { base1: BASE1, base2: BASE2 },
        async function({ base1, base2 }) {
          let top = content.window;
          top.name = "top";
          top.location.href += "#top";

          let contexts = {
            top: top.location.href,
            first: base1 + "dummy_page.html#first",
            third: base2 + "dummy_page.html#third",
            second: base1 + "dummy_page.html#second",
            fourth: base2 + "dummy_page.html#fourth",
            fifth: base1 + "dummy_page.html#fifth",
            sixth: base1 + "onload_message.html#sixth",
            seventh: base1 + "onload_message.html#seventh",
          };

          function addFrame(target, name) {
            let doc = (target.contentWindow || target).document;
            let frame = doc.createElement("iframe");
            let p = new Promise(
              resolve => (frame.onload = () => resolve(frame))
            );
            doc.body.appendChild(frame);
            frame.name = name;
            frame.src = contexts[name];
            return p;
          }

          function addWindow(target, name, { options, resolve }) {
            var win = target.contentWindow.open(contexts[name], name, options);

            if (resolve) {
              return new Promise(resolve =>
                target.contentWindow.addEventListener("message", () =>
                  resolve(win)
                )
              );
            }
            return Promise.resolve({ name });
          }

          // We're going to create a tree that looks like the
          // following.
          //
          //           top          sixth    seventh
          //          /   \
          //         /     \        /
          //      first  second
          //      /   \           /
          //     /     \
          //  third  fourth - - -
          //          /
          //         /
          //      fifth
          //
          // The idea is to have one top level non-auxiliary browsing
          // context, five nested, one top level auxiliary with an
          // opener, and one top level without an opener. Given that
          // set of related and one unrelated browsing contexts we
          // wish to confirm that targeting is able to find
          // appropriate browsing contexts.

          function bc(frame) {
            return (frame.contentWindow || frame).docShell.browsingContext;
          }

          function reachable(start, targets) {
            for (let target of targets) {
              is(
                bc(start).findWithName(target.name),
                bc(target),
                [bc(start).name, "can reach", target.name].join(" ")
              );
            }
          }

          function unreachable(start, target) {
            is(
              bc(start).findWithName(target.name),
              null,
              [bc(start).name, "can't reach", target.name].join(" ")
            );
          }

          let first = await addFrame(top, "first");
          info("first");
          let second = await addFrame(top, "second");
          info("second");
          let third = await addFrame(first, "third");
          info("third");
          let fourth = await addFrame(first, "fourth");
          info("fourth");
          let fifth = await addFrame(fourth, "fifth");
          info("fifth");
          let sixth = await addWindow(fourth, "sixth", { resolve: true });
          info("sixth");
          let seventh = await addWindow(fourth, "seventh", {
            options: ["noopener"],
          });
          info("seventh");

          let frames = [top, first, second, third, fourth, fifth, sixth];
          for (let start of frames) {
            reachable(start, frames);
            unreachable(start, seventh);
          }
        }
      );

      for (let tab of await Promise.all([sixth, seventh])) {
        BrowserTestUtils.removeTab(tab);
      }
    }
  );
});