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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
function browserWindowsCount() {
let count = 0;
let e = Services.wm.getEnumerator("navigator:browser");
while (e.hasMoreElements()) {
if (!e.getNext().closed)
++count;
}
return count;
}
function test() {
is(browserWindowsCount(), 1, "Only one browser window should be open initially");
waitForExplicitFinish();
const REMEMBER = Date.now(), FORGET = Math.random();
let test_state = { windows: [{ "tabs": [{ "entries": [] }], _closedTabs: [
] }] };
let remember_count = 2;
function countByTitle(aClosedTabList, aTitle) {
return aClosedTabList.filter(aData => aData.title == aTitle).length;
}
function testForError(aFunction) {
try {
aFunction();
return false;
}
catch (ex) {
return ex.name == "NS_ERROR_ILLEGAL_VALUE";
}
}
// open a window and add the above closed tab list
let newWin = openDialog(location, "", "chrome,all,dialog=no");
newWin.addEventListener("load", function loadListener(aEvent) {
newWin.removeEventListener("load", loadListener);
Services.prefs.setIntPref("browser.sessionstore.max_tabs_undo",
test_state.windows[0]._closedTabs.length);
ss.setWindowState(newWin, JSON.stringify(test_state), true);
let closedTabs = JSON.parse(ss.getClosedTabData(newWin));
is(closedTabs.length, test_state.windows[0]._closedTabs.length,
"Closed tab list has the expected length");
is(countByTitle(closedTabs, FORGET),
test_state.windows[0]._closedTabs.length - remember_count,
"The correct amout of tabs are to be forgotten");
is(countByTitle(closedTabs, REMEMBER), remember_count,
"Everything is set up.");
// all of the following calls with illegal arguments should throw NS_ERROR_ILLEGAL_VALUE
ok(testForError(() => ss.forgetClosedTab({}, 0)),
"Invalid window for forgetClosedTab throws");
ok(testForError(() => ss.forgetClosedTab(newWin, -1)),
"Invalid tab for forgetClosedTab throws");
ok(testForError(() => ss.forgetClosedTab(newWin, test_state.windows[0]._closedTabs.length + 1)),
"Invalid tab for forgetClosedTab throws");
// Remove third tab, then first tab
ss.forgetClosedTab(newWin, 2);
ss.forgetClosedTab(newWin, null);
closedTabs = JSON.parse(ss.getClosedTabData(newWin));
is(closedTabs.length, remember_count,
"The correct amout of tabs was removed");
is(countByTitle(closedTabs, FORGET), 0,
"All tabs specifically forgotten were indeed removed");
is(countByTitle(closedTabs, REMEMBER), remember_count,
"... and tabs not specifically forgetten weren't.");
// clean up
newWin.close();
is(browserWindowsCount(), 1, "Only one browser window should be open eventually");
Services.prefs.clearUserPref("browser.sessionstore.max_tabs_undo");
finish();
});
}