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899e52534b
Depends on D11885 Differential Revision: https://phabricator.services.mozilla.com/D11886 --HG-- extra : moz-landing-system : lando
28 lines
1.2 KiB
JavaScript
28 lines
1.2 KiB
JavaScript
/* vim: set ft=javascript ts=2 et sw=2 tw=80: */
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/* Any copyright is dedicated to the Public Domain.
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http://creativecommons.org/publicdomain/zero/1.0/ */
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"use strict";
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// Test that StyleSheetsActor.getStyleSheets() works if an iframe does not have
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// a content document.
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add_task(async function() {
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info("Initialising the debugger server and client.");
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const target = await addTabTarget(MAIN_DOMAIN + "stylesheets-nested-iframes.html");
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const front = await target.getFront("stylesheets");
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ok(front, "The StyleSheetsFront was created.");
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const sheets = await front.getStyleSheets();
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ok(sheets, "getStyleSheets() succeeded even with documentless iframes.");
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// Bug 285395 limits the number of nested iframes to 10. There's one sheet per
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// frame so we should get 10 sheets. However, the limit might change in the
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// future so it's better not to rely on the limit. Asserting > 2 ensures that
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// the test page is actually loading nested iframes and this test is doing
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// something sensible (if we got this far, the test has served its purpose).
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ok(sheets.length > 2, sheets.length + " sheets found (expected 3 or more).");
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await target.destroy();
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});
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