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add_task(async function newtabPreloaded() {
await openPreferencesViaOpenPreferencesAPI("paneHome", { leaveOpen: true });
const { contentDocument: doc, contentWindow } = gBrowser;
function dispatchMenuItemCommand(menuItem) {
const cmdEvent = doc.createEvent("xulcommandevent");
cmdEvent.initCommandEvent(
"command",
true,
true,
contentWindow,
0,
false,
false,
false,
false,
0,
null,
0
);
menuItem.dispatchEvent(cmdEvent);
}
const menuHome = doc.querySelector(`#newTabMode menuitem[value="0"]`);
const menuBlank = doc.querySelector(`#newTabMode menuitem[value="1"]`);
ok(menuHome.selected, "The first item, Home (default), is selected.");
ok(NewTabPagePreloading.enabled, "Default Home allows preloading.");
dispatchMenuItemCommand(menuBlank);
ok(menuBlank.selected, "The second item, Blank, is selected.");
ok(!NewTabPagePreloading.enabled, "Non-Home prevents preloading.");
dispatchMenuItemCommand(menuHome);
ok(menuHome.selected, "The first item, Home, is selected again.");
ok(NewTabPagePreloading.enabled, "Default Home allows preloading again.");
BrowserTestUtils.removeTab(gBrowser.selectedTab);
});
|
