1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/browser/components/sessionstore/test/browser_merge_closed_tabs.js Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,71 @@
1.4 +/* Any copyright is dedicated to the Public Domain.
1.5 + * http://creativecommons.org/publicdomain/zero/1.0/ */
1.6 +
1.7 +/**
1.8 + * This test ensures that closed tabs are merged when restoring
1.9 + * a window state without overwriting tabs.
1.10 + */
1.11 +add_task(function () {
1.12 + const initialState = {
1.13 + windows: [{
1.14 + tabs: [
1.15 + { entries: [{ url: "about:blank" }] }
1.16 + ],
1.17 + _closedTabs: [
1.18 + { state: { entries: [{ ID: 1000, url: "about:blank" }]} },
1.19 + { state: { entries: [{ ID: 1001, url: "about:blank" }]} }
1.20 + ]
1.21 + }]
1.22 + }
1.23 +
1.24 + const restoreState = {
1.25 + windows: [{
1.26 + tabs: [
1.27 + { entries: [{ url: "about:robots" }] }
1.28 + ],
1.29 + _closedTabs: [
1.30 + { state: { entries: [{ ID: 1002, url: "about:robots" }]} },
1.31 + { state: { entries: [{ ID: 1003, url: "about:robots" }]} },
1.32 + { state: { entries: [{ ID: 1004, url: "about:robots" }]} }
1.33 + ]
1.34 + }]
1.35 + }
1.36 +
1.37 + const maxTabsUndo = 4;
1.38 + gPrefService.setIntPref("browser.sessionstore.max_tabs_undo", maxTabsUndo);
1.39 +
1.40 + // Open a new window and restore it to an initial state.
1.41 + let win = yield promiseNewWindowLoaded({private: false});
1.42 + SessionStore.setWindowState(win, JSON.stringify(initialState), true);
1.43 + is(SessionStore.getClosedTabCount(win), 2, "2 closed tabs after restoring initial state");
1.44 +
1.45 + // Restore the new state but do not overwrite existing tabs (this should
1.46 + // cause the closed tabs to be merged).
1.47 + SessionStore.setWindowState(win, JSON.stringify(restoreState), false);
1.48 +
1.49 + // Verify the windows closed tab data is correct.
1.50 + let iClosed = initialState.windows[0]._closedTabs;
1.51 + let rClosed = restoreState.windows[0]._closedTabs;
1.52 + let cData = JSON.parse(SessionStore.getClosedTabData(win));
1.53 +
1.54 + is(cData.length, Math.min(iClosed.length + rClosed.length, maxTabsUndo),
1.55 + "Number of closed tabs is correct");
1.56 +
1.57 + // When the closed tabs are merged the restored tabs are considered to be
1.58 + // closed more recently.
1.59 + for (let i = 0; i < cData.length; i++) {
1.60 + if (i < rClosed.length) {
1.61 + is(cData[i].state.entries[0].ID, rClosed[i].state.entries[0].ID,
1.62 + "Closed tab entry matches");
1.63 + } else {
1.64 + is(cData[i].state.entries[0].ID, iClosed[i - rClosed.length].state.entries[0].ID,
1.65 + "Closed tab entry matches");
1.66 + }
1.67 + }
1.68 +
1.69 + // Clean up.
1.70 + gPrefService.clearUserPref("browser.sessionstore.max_tabs_undo");
1.71 + win.close();
1.72 +});
1.73 +
1.74 +
