/* vim: set ft=javascript ts=2 et sw=2 tw=80: */
/* Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
"use strict";
// Test that StyleSheetsActor.getStyleSheets() works if an iframe does not have
// a content document.
const {StyleSheetsFront} = require("devtools/shared/fronts/stylesheets");
add_task(async function () {
await addTab(MAIN_DOMAIN + "stylesheets-nested-iframes.html");
info("Initialising the debugger server and client.");
initDebuggerServer();
let client = new DebuggerClient(DebuggerServer.connectPipe());
let form = await connectDebuggerClient(client);
info("Attaching to the active tab.");
await client.attachTab(form.actor);
let front = StyleSheetsFront(client, form);
ok(front, "The StyleSheetsFront was created.");
let sheets = await front.getStyleSheets();
ok(sheets, "getStyleSheets() succeeded even with documentless iframes.");
// Bug 285395 limits the number of nested iframes to 10. There's one sheet per
// frame so we should get 10 sheets. However, the limit might change in the
// future so it's better not to rely on the limit. Asserting > 2 ensures that
// the test page is actually loading nested iframes and this test is doing
// something sensible (if we got this far, the test has served its purpose).
ok(sheets.length > 2, sheets.length + " sheets found (expected 3 or more).");
await client.close();
});