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Test Info: Errors
- This test gets skipped with pattern: os == 'linux' && (debug || asan || tsan)
- This test failed 4 times in the preceding 30 days. quicksearch this test
- Manifest: docshell/test/browser/browser.toml
/* Any copyright is dedicated to the Public Domain.
/**
*
* When LoadEntry() is called on a browser that has multiple duplicate history
* entries, history.index can end up out of range (>= history.count).
*/
const URL =
add_task(async function test() {
await BrowserTestUtils.withNewTab(
{ gBrowser, url: "about:blank" },
async function (browser) {
if (!SpecialPowers.Services.appinfo.sessionHistoryInParent) {
await ContentTask.spawn(browser, URL, async function (URL) {
let history = docShell.QueryInterface(
Ci.nsIWebNavigation
).sessionHistory;
let count = 0;
let testDone = {};
testDone.promise = new Promise(resolve => {
testDone.resolve = resolve;
});
// Since listener implements nsISupportsWeakReference, we are
// responsible for keeping it alive so that the GC doesn't clear
// it before the test completes. We do this by anchoring the listener
// to the message manager, and clearing it just before the test
// completes.
this._testListener = {
owner: this,
OnHistoryNewEntry(aNewURI) {
info("OnHistoryNewEntry " + aNewURI.spec + ", " + count);
if (aNewURI.spec == URL && 5 == ++count) {
addEventListener(
"load",
function onLoad() {
Assert.ok(
history.index < history.count,
"history.index is valid"
);
testDone.resolve();
},
{ capture: true, once: true }
);
history.legacySHistory.removeSHistoryListener(
this.owner._testListener
);
delete this.owner._testListener;
this.owner = null;
content.setTimeout(() => {
content.location.reload();
}, 0);
}
},
OnHistoryReload: () => true,
OnHistoryGotoIndex: () => {},
OnHistoryPurge: () => {},
OnHistoryReplaceEntry: () => {
// The initial load of about:blank causes a transient entry to be
// created, so our first navigation to a real page is a replace
// instead of a new entry.
++count;
},
QueryInterface: ChromeUtils.generateQI([
"nsISHistoryListener",
"nsISupportsWeakReference",
]),
};
history.legacySHistory.addSHistoryListener(this._testListener);
content.location = URL;
await testDone.promise;
});
return;
}
let history = browser.browsingContext.sessionHistory;
let count = 0;
let testDone = {};
testDone.promise = new Promise(resolve => {
testDone.resolve = resolve;
});
let listener = {
async OnHistoryNewEntry(aNewURI) {
if (aNewURI.spec == URL && 5 == ++count) {
history.removeSHistoryListener(listener);
await ContentTask.spawn(browser, null, () => {
return new Promise(resolve => {
addEventListener(
"load",
() => {
let history = docShell.QueryInterface(
Ci.nsIWebNavigation
).sessionHistory;
Assert.ok(
history.index < history.count,
"history.index is valid"
);
resolve();
},
{ capture: true, once: true }
);
content.location.reload();
});
});
testDone.resolve();
}
},
OnHistoryReload: () => true,
OnHistoryGotoIndex: () => {},
OnHistoryPurge: () => {},
OnHistoryReplaceEntry: () => {
// The initial load of about:blank causes a transient entry to be
// created, so our first navigation to a real page is a replace
// instead of a new entry.
++count;
},
QueryInterface: ChromeUtils.generateQI([
"nsISHistoryListener",
"nsISupportsWeakReference",
]),
};
history.addSHistoryListener(listener);
BrowserTestUtils.startLoadingURIString(browser, URL);
await testDone.promise;
}
);
});