Add m-esr52 at 52.6.0

1 files changed, 59 insertions, 0 deletions

diff --git a/browser/components/sessionstore/test/browser_purge_shistory.js b/browser/components/sessionstore/test/browser_purge_shistory.js
new file mode 100644
index 000000000..28c6f6f24
--- /dev/null
+++ b/browser/components/sessionstore/test/browser_purge_shistory.js
@@ -0,0 +1,59 @@
+"use strict";
+
+/**
+ * This test checks that pending tabs are treated like fully loaded tabs when
+ * purging session history. Just like for fully loaded tabs we want to remove
+ * every but the current shistory entry.
+ */
+
+const TAB_STATE = {
+  entries: [{url: "about:mozilla"}, {url: "about:robots"}],
+  index: 1,
+};
+
+function checkTabContents(browser) {
+  return ContentTask.spawn(browser, null, function* () {
+    let Ci = Components.interfaces;
+    let webNavigation = docShell.QueryInterface(Ci.nsIWebNavigation);
+    let history = webNavigation.sessionHistory.QueryInterface(Ci.nsISHistoryInternal);
+    Assert.ok(history && history.count == 1 && content.document.documentURI == "about:mozilla",
+      "expected tab contents found");
+  });
+}
+
+add_task(function* () {
+  // Create a new tab.
+  let tab = gBrowser.addTab("about:blank");
+  let browser = tab.linkedBrowser;
+  yield promiseBrowserLoaded(browser);
+  yield promiseTabState(tab, TAB_STATE);
+
+  // Create another new tab.
+  let tab2 = gBrowser.addTab("about:blank");
+  let browser2 = tab2.linkedBrowser;
+  yield promiseBrowserLoaded(browser2);
+
+  // The tab shouldn't be restored right away.
+  Services.prefs.setBoolPref("browser.sessionstore.restore_on_demand", true);
+
+  // Prepare the tab state.
+  let promise = promiseTabRestoring(tab2);
+  ss.setTabState(tab2, JSON.stringify(TAB_STATE));
+  ok(tab2.hasAttribute("pending"), "tab is pending");
+  yield promise;
+
+  // Purge session history.
+  Services.obs.notifyObservers(null, "browser:purge-session-history", "");
+  yield checkTabContents(browser);
+  ok(tab2.hasAttribute("pending"), "tab is still pending");
+
+  // Kick off tab restoration.
+  gBrowser.selectedTab = tab2;
+  yield promiseTabRestored(tab2);
+  yield checkTabContents(browser2);
+  ok(!tab2.hasAttribute("pending"), "tab is not pending anymore");
+
+  // Cleanup.
+  gBrowser.removeTab(tab2);
+  gBrowser.removeTab(tab);
+});