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67 lines
2.2 KiB
JavaScript
67 lines
2.2 KiB
JavaScript
"use strict";
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/**
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* This test ensures that after closing a window we keep its state data around
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* as long as something keeps a reference to it. It should only be possible to
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* read data after closing - writing should fail.
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*/
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add_task(function* test() {
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// Open a new window.
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let win = yield promiseNewWindowLoaded();
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// Load some URL in the current tab.
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let flags = Ci.nsIWebNavigation.LOAD_FLAGS_REPLACE_HISTORY;
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win.gBrowser.selectedBrowser.loadURIWithFlags("about:robots", flags);
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yield promiseBrowserLoaded(win.gBrowser.selectedBrowser);
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// Open a second tab and close the first one.
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let tab = win.gBrowser.addTab("about:mozilla");
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yield promiseBrowserLoaded(tab.linkedBrowser);
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yield TabStateFlusher.flush(tab.linkedBrowser);
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yield promiseRemoveTab(win.gBrowser.tabs[0]);
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// Make sure our window is still tracked by sessionstore
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// and the window state is as expected.
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ok("__SSi" in win, "window is being tracked by sessionstore");
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ss.setWindowValue(win, "foo", "bar");
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checkWindowState(win);
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let state = ss.getWindowState(win);
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let closedTabData = ss.getClosedTabData(win);
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// Close our window.
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yield BrowserTestUtils.closeWindow(win);
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// SessionStore should no longer track our window
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// but it should still report the same state.
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ok(!("__SSi" in win), "sessionstore does no longer track our window");
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checkWindowState(win);
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// Make sure we're not allowed to modify state data.
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Assert.throws(() => ss.setWindowState(win, {}),
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"we're not allowed to modify state data anymore");
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Assert.throws(() => ss.setWindowValue(win, "foo", "baz"),
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"we're not allowed to modify state data anymore");
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});
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function checkWindowState(window) {
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let {windows: [{tabs}]} = JSON.parse(ss.getWindowState(window));
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is(tabs.length, 1, "the window has a single tab");
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is(tabs[0].entries[0].url, "about:mozilla", "the tab is about:mozilla");
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is(ss.getClosedTabCount(window), 1, "the window has one closed tab");
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let [{state: {entries: [{url}]}}] = JSON.parse(ss.getClosedTabData(window));
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is(url, "about:robots", "the closed tab is about:robots");
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is(ss.getWindowValue(window, "foo"), "bar", "correct extData value");
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}
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function shouldThrow(f) {
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try {
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f();
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} catch (e) {
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return true;
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}
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}
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