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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
| commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
| tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /docshell/test/navigation/browser_test_bfcache_eviction.js | |
| parent | Initial commit. (diff) | |
| download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip | |
Adding upstream version 115.7.0esr.upstream/115.7.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'docshell/test/navigation/browser_test_bfcache_eviction.js')
| -rw-r--r-- | docshell/test/navigation/browser_test_bfcache_eviction.js | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/docshell/test/navigation/browser_test_bfcache_eviction.js b/docshell/test/navigation/browser_test_bfcache_eviction.js new file mode 100644 index 0000000000..32772fe42c --- /dev/null +++ b/docshell/test/navigation/browser_test_bfcache_eviction.js @@ -0,0 +1,102 @@ +add_task(async function () { + // We don't want the number of total viewers to be calculated by the available size + // for this test case. Instead, fix the number of viewers. + await SpecialPowers.pushPrefEnv({ + set: [ + ["browser.sessionhistory.max_total_viewers", 3], + ["docshell.shistory.testing.bfevict", true], + // If Fission is disabled, the pref is no-op. + ["fission.bfcacheInParent", true], + ], + }); + + // 1. Open a tab + var testPage = + "data:text/html,<html id='html1'><body id='body1'>First tab ever opened</body></html>"; + await BrowserTestUtils.withNewTab( + { gBrowser, url: testPage }, + async function (browser) { + let testDone = {}; + if (!SpecialPowers.Services.appinfo.sessionHistoryInParent) { + // 2. Add a promise that will be resolved when the 'content viewer evicted' event goes off + testDone.promise = SpecialPowers.spawn(browser, [], async function () { + return new Promise(resolve => { + let webNavigation = content.docShell.QueryInterface( + Ci.nsIWebNavigation + ); + let { legacySHistory } = webNavigation.sessionHistory; + // 3. Register a session history listener to listen for a 'content viewer evicted' event. + let historyListener = { + OnContentViewerEvicted() { + ok( + true, + "History listener got called after a content viewer was evicted" + ); + legacySHistory.removeSHistoryListener(historyListener); + // 6. Resolve the promise when we got our 'content viewer evicted' event + resolve(); + }, + QueryInterface: ChromeUtils.generateQI([ + "nsISHistoryListener", + "nsISupportsWeakReference", + ]), + }; + legacySHistory.addSHistoryListener(historyListener); + // Keep the weak shistory listener alive + content._testListener = historyListener; + }); + }); + } else { + // 2. Add a promise that will be resolved when the 'content viewer evicted' event goes off + testDone.promise = new Promise(resolve => { + testDone.resolve = resolve; + }); + let shistory = browser.browsingContext.sessionHistory; + // 3. Register a session history listener to listen for a 'content viewer evicted' event. + let historyListener = { + OnContentViewerEvicted() { + ok( + true, + "History listener got called after a content viewer was evicted" + ); + shistory.removeSHistoryListener(historyListener); + delete window._testListener; + // 6. Resolve the promise when we got our 'content viewer evicted' event + testDone.resolve(); + }, + QueryInterface: ChromeUtils.generateQI([ + "nsISHistoryListener", + "nsISupportsWeakReference", + ]), + }; + shistory.addSHistoryListener(historyListener); + // Keep the weak shistory listener alive + window._testListener = historyListener; + } + + // 4. Open a second tab + testPage = `data:text/html,<html id='html1'><body id='body1'>I am a second tab!</body></html>`; + let tab2 = await BrowserTestUtils.openNewForegroundTab( + gBrowser, + testPage + ); + + // 5. Navigate the first tab to 4 different pages. + // We should get 1 content viewer evicted because it will be outside of the range. + // If we have the following pages in our session history: P1 P2 P3 P4 P5 + // and we are currently at P5, then P1 is outside of the range + // (it is more than 3 entries away from current entry) and thus will be evicted. + for (var i = 0; i < 4; i++) { + testPage = `data:text/html,<html id='html1'><body id='body1'>${i}</body></html>`; + let pagePromise = BrowserTestUtils.browserLoaded(browser); + BrowserTestUtils.loadURIString(browser, testPage); + await pagePromise; + } + // 7. Wait for 'content viewer evicted' event to go off + await testDone.promise; + + // 8. Close the second tab + BrowserTestUtils.removeTab(tab2); + } + ); +}); |