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-rw-r--r--browser/components/sessionstore/test/browser_635418.js55
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diff --git a/browser/components/sessionstore/test/browser_635418.js b/browser/components/sessionstore/test/browser_635418.js
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+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+// This tests that hiding/showing a tab, on its own, eventually triggers a
+// session store.
+
+function test() {
+ waitForExplicitFinish();
+
+ // We speed up the interval between session saves to ensure that the test
+ // runs quickly.
+ Services.prefs.setIntPref("browser.sessionstore.interval", 2000);
+
+ // Loading a tab causes a save state and this is meant to catch that event.
+ waitForSaveState(testBug635418_1);
+
+ // Assumption: Only one window is open and it has one tab open.
+ gBrowser.addTab("about:mozilla");
+}
+
+function testBug635418_1() {
+ ok(!gBrowser.tabs[0].hidden, "first tab should not be hidden");
+ ok(!gBrowser.tabs[1].hidden, "second tab should not be hidden");
+
+ waitForSaveState(testBug635418_2);
+
+ // We can't hide the selected tab, so hide the new one
+ gBrowser.hideTab(gBrowser.tabs[1]);
+}
+
+function testBug635418_2() {
+ let state = JSON.parse(ss.getBrowserState());
+ ok(!state.windows[0].tabs[0].hidden, "first tab should still not be hidden");
+ ok(state.windows[0].tabs[1].hidden, "second tab should be hidden by now");
+
+ waitForSaveState(testBug635418_3);
+ gBrowser.showTab(gBrowser.tabs[1]);
+}
+
+function testBug635418_3() {
+ let state = JSON.parse(ss.getBrowserState());
+ ok(!state.windows[0].tabs[0].hidden, "first tab should still still not be hidden");
+ ok(!state.windows[0].tabs[1].hidden, "second tab should not be hidden again");
+
+ done();
+}
+
+function done() {
+ gBrowser.removeTab(window.gBrowser.tabs[1]);
+
+ Services.prefs.clearUserPref("browser.sessionstore.interval");
+
+ executeSoon(finish);
+}