diff options
Diffstat (limited to 'browser/components/newtab/test/browser/abouthomecache/browser_no_cache_on_SessionStartup_restore.js')
-rw-r--r-- | browser/components/newtab/test/browser/abouthomecache/browser_no_cache_on_SessionStartup_restore.js | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/browser/components/newtab/test/browser/abouthomecache/browser_no_cache_on_SessionStartup_restore.js b/browser/components/newtab/test/browser/abouthomecache/browser_no_cache_on_SessionStartup_restore.js new file mode 100644 index 0000000000..a312b2b44f --- /dev/null +++ b/browser/components/newtab/test/browser/abouthomecache/browser_no_cache_on_SessionStartup_restore.js @@ -0,0 +1,37 @@ +/* Any copyright is dedicated to the Public Domain. + http://creativecommons.org/publicdomain/zero/1.0/ */ + +"use strict"; + +/** + * Tests that if somehow about:newtab loads before about:home does, that we + * don't use the cache. This is because about:newtab doesn't use the cache, + * and so it'll inevitably be newer than what's in the about:home cache, + * which will put the about:home cache out of date the next time about:home + * eventually loads. + */ +add_task(async function test_no_cache_on_SessionStartup_restore() { + await withFullyLoadedAboutHome(async browser => { + await simulateRestart(browser, { skipAboutHomeLoad: true }); + + // We remove the preloaded browser to ensure that loading the next + // about:newtab occurs now, and not at preloading time. + NewTabPagePreloading.removePreloadedBrowser(window); + let tab = await BrowserTestUtils.openNewForegroundTab( + gBrowser, + "about:newtab" + ); + + let newWin = await BrowserTestUtils.openNewBrowserWindow(); + + // The cache is disqualified because about:newtab was loaded first. + // So now it's too late to use the cache. + await ensureDynamicAboutHome( + newWin.gBrowser.selectedBrowser, + AboutHomeStartupCache.CACHE_RESULT_SCALARS.LATE + ); + + await BrowserTestUtils.closeWindow(newWin); + await BrowserTestUtils.removeTab(tab); + }); +}); |