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Test Info:
- Manifest: docshell/test/browser/browser.toml
/**
* Test that session history's expiration tracker would remove bfcache on
* expiration.
*/
// With bfcache not expired.
add_task(async function testValidCache() {
// Make an unrealistic large timeout.
await SpecialPowers.pushPrefEnv({
set: [
["browser.sessionhistory.contentViewerTimeout", 86400],
// If Fission is disabled, the pref is no-op.
["fission.bfcacheInParent", true],
],
});
await BrowserTestUtils.withNewTab(
{ gBrowser, url: "data:text/html;charset=utf-8,pageA1" },
async function (browser) {
// Make a simple modification for bfcache testing.
await SpecialPowers.spawn(browser, [], () => {
content.document.body.textContent = "modified";
});
// Load a random page.
BrowserTestUtils.startLoadingURIString(
browser,
"data:text/html;charset=utf-8,pageA2"
);
await BrowserTestUtils.browserLoaded(browser);
// Go back and verify text content.
let awaitPageShow = BrowserTestUtils.waitForContentEvent(
browser,
"pageshow"
);
browser.goBack();
await awaitPageShow;
await SpecialPowers.spawn(browser, [], () => {
is(content.document.body.textContent, "modified");
});
}
);
});
// With bfcache expired.
add_task(async function testExpiredCache() {
// Make bfcache timeout in 1 sec.
await SpecialPowers.pushPrefEnv({
set: [
["browser.sessionhistory.contentViewerTimeout", 1],
// If Fission is disabled, the pref is no-op.
["fission.bfcacheInParent", true],
],
});
await BrowserTestUtils.withNewTab(
{ gBrowser, url: "data:text/html;charset=utf-8,pageB1" },
async function (browser) {
// Make a simple modification for bfcache testing.
await SpecialPowers.spawn(browser, [], () => {
content.document.body.textContent = "modified";
});
// Load a random page.
BrowserTestUtils.startLoadingURIString(
browser,
"data:text/html;charset=utf-8,pageB2"
);
await BrowserTestUtils.browserLoaded(browser);
// Wait for 3 times of expiration timeout, hopefully it's evicted...
await SpecialPowers.spawn(browser, [], () => {
return new Promise(resolve => {
content.setTimeout(resolve, 5000);
});
});
// Go back and verify text content.
let awaitPageShow = BrowserTestUtils.waitForContentEvent(
browser,
"pageshow"
);
browser.goBack();
await awaitPageShow;
await SpecialPowers.spawn(browser, [], () => {
is(content.document.body.textContent, "pageB1");
});
}
);
});