mozilla-central/docshell/test/navigation/browser_test_shentry_wireframe.js (file symbol)

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/* Any copyright is dedicated to the Public Domain.
"use strict";
const PAGE_1 = BUILDER + encodeURIComponent(`<html><body>Page 1</body></html>`);
const PAGE_2 = BUILDER + encodeURIComponent(`<html><body>Page 2</body></html>`);
add_setup(async function () {
await SpecialPowers.pushPrefEnv({
set: [["browser.history.collectWireframes", true]],
});
});
/**
* Test that capturing wireframes on nsISHEntriy's in the parent process
* happens at the right times.
*/
add_task(async function () {
await BrowserTestUtils.withNewTab(PAGE_1, async browser => {
let sh = browser.browsingContext.sessionHistory;
Assert.equal(
sh.count,
1,
"Got the right SessionHistory entry count after initial tab load."
);
Assert.ok(
!sh.getEntryAtIndex(0).wireframe,
"No wireframe for the loaded entry after initial tab load."
);
let loaded = BrowserTestUtils.browserLoaded(browser, false, PAGE_2);
BrowserTestUtils.startLoadingURIString(browser, PAGE_2);
await loaded;
Assert.equal(
sh.count,
2,
"Got the right SessionHistory entry count after loading page 2."
);
Assert.ok(
sh.getEntryAtIndex(0).wireframe,
"A wireframe was captured for the first entry after loading page 2."
);
Assert.ok(
!sh.getEntryAtIndex(1).wireframe,
"No wireframe for the loaded entry after loading page 2."
);
// Now go back
loaded = BrowserTestUtils.waitForContentEvent(browser, "pageshow");
browser.goBack();
await loaded;
Assert.ok(
sh.getEntryAtIndex(1).wireframe,
"A wireframe was captured for the second entry after going back."
);
Assert.ok(
!sh.getEntryAtIndex(0).wireframe,
"No wireframe for the loaded entry after going back."
);
// Now forward again
loaded = BrowserTestUtils.waitForContentEvent(browser, "pageshow");
browser.goForward();
await loaded;
Assert.equal(
sh.count,
2,
"Got the right SessionHistory entry count after going forward again."
);
Assert.ok(
sh.getEntryAtIndex(0).wireframe,
"A wireframe was captured for the first entry after going forward again."
);
Assert.ok(
!sh.getEntryAtIndex(1).wireframe,
"No wireframe for the loaded entry after going forward again."
);
// And using pushState
await SpecialPowers.spawn(browser, [], async () => {
content.history.pushState({}, "", "nothing-1.html");
content.history.pushState({}, "", "nothing-2.html");
});
Assert.equal(
sh.count,
4,
"Got the right SessionHistory entry count after using pushState."
);
Assert.ok(
sh.getEntryAtIndex(0).wireframe,
"A wireframe was captured for the first entry after using pushState."
);
Assert.ok(
sh.getEntryAtIndex(1).wireframe,
"A wireframe was captured for the second entry after using pushState."
);
Assert.ok(
sh.getEntryAtIndex(2).wireframe,
"A wireframe was captured for the third entry after using pushState."
);
Assert.ok(
!sh.getEntryAtIndex(3).wireframe,
"No wireframe for the loaded entry after using pushState."
);
// Now check that wireframes can be written to in case we're restoring
// an nsISHEntry from serialization.
let wireframe = sh.getEntryAtIndex(2).wireframe;
sh.getEntryAtIndex(2).wireframe = null;
Assert.equal(
sh.getEntryAtIndex(2).wireframe,
null,
"Successfully cleared wireframe."
);
sh.getEntryAtIndex(3).wireframe = wireframe;
Assert.deepEqual(
sh.getEntryAtIndex(3).wireframe,
wireframe,
"Successfully wrote a wireframe to an nsISHEntry."
);
});
});