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-rw-r--r--docshell/test/browser/browser_bug1347823.js91
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diff --git a/docshell/test/browser/browser_bug1347823.js b/docshell/test/browser/browser_bug1347823.js
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+/**
+ * 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");
+ });
+ }
+ );
+});