The Tor Browser / file comparison
comparison: browser/components/sessionstore/test/browser_merge_closed_tabs.js
browser/components/sessionstore/test/browser_merge_closed_tabs.js
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| 1 /* Any copyright is dedicated to the Public Domain. | |
| 2 * http://creativecommons.org/publicdomain/zero/1.0/ */ | |
| 3 | |
| 4 /** | |
| 5 * This test ensures that closed tabs are merged when restoring | |
| 6 * a window state without overwriting tabs. | |
| 7 */ | |
| 8 add_task(function () { | |
| 9 const initialState = { | |
| 10 windows: [{ | |
| 11 tabs: [ | |
| 12 { entries: [{ url: "about:blank" }] } | |
| 13 ], | |
| 14 _closedTabs: [ | |
| 15 { state: { entries: [{ ID: 1000, url: "about:blank" }]} }, | |
| 16 { state: { entries: [{ ID: 1001, url: "about:blank" }]} } | |
| 17 ] | |
| 18 }] | |
| 19 } | |
| 20 | |
| 21 const restoreState = { | |
| 22 windows: [{ | |
| 23 tabs: [ | |
| 24 { entries: [{ url: "about:robots" }] } | |
| 25 ], | |
| 26 _closedTabs: [ | |
| 27 { state: { entries: [{ ID: 1002, url: "about:robots" }]} }, | |
| 28 { state: { entries: [{ ID: 1003, url: "about:robots" }]} }, | |
| 29 { state: { entries: [{ ID: 1004, url: "about:robots" }]} } | |
| 30 ] | |
| 31 }] | |
| 32 } | |
| 33 | |
| 34 const maxTabsUndo = 4; | |
| 35 gPrefService.setIntPref("browser.sessionstore.max_tabs_undo", maxTabsUndo); | |
| 36 | |
| 37 // Open a new window and restore it to an initial state. | |
| 38 let win = yield promiseNewWindowLoaded({private: false}); | |
| 39 SessionStore.setWindowState(win, JSON.stringify(initialState), true); | |
| 40 is(SessionStore.getClosedTabCount(win), 2, "2 closed tabs after restoring initial state"); | |
| 41 | |
| 42 // Restore the new state but do not overwrite existing tabs (this should | |
| 43 // cause the closed tabs to be merged). | |
| 44 SessionStore.setWindowState(win, JSON.stringify(restoreState), false); | |
| 45 | |
| 46 // Verify the windows closed tab data is correct. | |
| 47 let iClosed = initialState.windows[0]._closedTabs; | |
| 48 let rClosed = restoreState.windows[0]._closedTabs; | |
| 49 let cData = JSON.parse(SessionStore.getClosedTabData(win)); | |
| 50 | |
| 51 is(cData.length, Math.min(iClosed.length + rClosed.length, maxTabsUndo), | |
| 52 "Number of closed tabs is correct"); | |
| 53 | |
| 54 // When the closed tabs are merged the restored tabs are considered to be | |
| 55 // closed more recently. | |
| 56 for (let i = 0; i < cData.length; i++) { | |
| 57 if (i < rClosed.length) { | |
| 58 is(cData[i].state.entries[0].ID, rClosed[i].state.entries[0].ID, | |
| 59 "Closed tab entry matches"); | |
| 60 } else { | |
| 61 is(cData[i].state.entries[0].ID, iClosed[i - rClosed.length].state.entries[0].ID, | |
| 62 "Closed tab entry matches"); | |
| 63 } | |
| 64 } | |
| 65 | |
| 66 // Clean up. | |
| 67 gPrefService.clearUserPref("browser.sessionstore.max_tabs_undo"); | |
| 68 win.close(); | |
| 69 }); | |
| 70 | |
| 71 |
