import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

browser/components/sessionstore/test/browser_unrestored_crashedTabs.js

@@ -0,0 +1,69 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+/**
+ * Tests that if we have tabs that are still in the "click to
+ * restore" state, that if their browsers crash, that we don't
+ * show the crashed state for those tabs (since selecting them
+ * should restore them anyway).
+ */
+
+const PREF = "browser.sessionstore.restore_on_demand";
+const PAGE = "data:text/html,<html><body>A%20regular,%20everyday,%20normal%20page.";
+
+add_task(function* test() {
+  yield pushPrefs([PREF, true]);
+
+  yield BrowserTestUtils.withNewTab({
+    gBrowser,
+    url: PAGE,
+  }, function*(browser) {
+    yield TabStateFlusher.flush(browser);
+
+    // We'll create a second "pending" tab. This is the one we'll
+    // ensure doesn't go to about:tabcrashed. We start it non-remote
+    // since this is how SessionStore creates all browsers before
+    // they are restored.
+    let unrestoredTab = gBrowser.addTab("about:blank", {
+      skipAnimation: true,
+      forceNotRemote: true,
+    });
+
+    let state = {
+      entries: [{url: PAGE}],
+    };
+
+    ss.setTabState(unrestoredTab, JSON.stringify(state));
+
+    ok(!unrestoredTab.hasAttribute("crashed"), "tab is not crashed");
+    ok(unrestoredTab.hasAttribute("pending"), "tab is pending");
+
+    // Now crash the selected browser.
+    yield BrowserTestUtils.crashBrowser(browser);
+
+    ok(!unrestoredTab.hasAttribute("crashed"), "tab is still not crashed");
+    ok(unrestoredTab.hasAttribute("pending"), "tab is still pending");
+
+    // Selecting the tab should now restore it.
+    gBrowser.selectedTab = unrestoredTab;
+    yield promiseTabRestored(unrestoredTab);
+
+    ok(!unrestoredTab.hasAttribute("crashed"), "tab is still not crashed");
+    ok(!unrestoredTab.hasAttribute("pending"), "tab is no longer pending");
+
+    // The original tab should still be crashed
+    let originalTab = gBrowser.getTabForBrowser(browser);
+    ok(originalTab.hasAttribute("crashed"), "original tab is crashed");
+    ok(!originalTab.isRemoteBrowser, "Should not be remote");
+
+    // We'd better be able to restore it still.
+    gBrowser.selectedTab = originalTab;
+    SessionStore.reviveCrashedTab(originalTab);
+    yield promiseTabRestored(originalTab);
+
+    // Clean up.
+    yield BrowserTestUtils.removeTab(unrestoredTab);
+  });
+});