var expected = [ "TabOpen", "onStateChange", "onLocationChange", "onLinkIconAvailable", ]; var actual = []; var tabIndex = -1; this.__defineGetter__("tab", () => gBrowser.tabs[tabIndex]); function test() { waitForExplicitFinish(); tabIndex = gBrowser.tabs.length; gBrowser.addTabsProgressListener(progressListener); gBrowser.tabContainer.addEventListener("TabOpen", TabOpen); BrowserTestUtils.addTab( gBrowser, "data:text/html," ); } function recordEvent(aName) { info("got " + aName); if (!actual.includes(aName)) { actual.push(aName); } if (actual.length == expected.length) { is( actual.toString(), expected.toString(), "got events and progress notifications in expected order" ); executeSoon( // eslint-disable-next-line no-shadow function(tab) { gBrowser.removeTab(tab); gBrowser.removeTabsProgressListener(progressListener); gBrowser.tabContainer.removeEventListener("TabOpen", TabOpen); finish(); }.bind(null, tab) ); } } function TabOpen(aEvent) { if (aEvent.target == tab) { recordEvent("TabOpen"); } } var progressListener = { onLocationChange: function onLocationChange(aBrowser) { if (aBrowser == tab.linkedBrowser) { recordEvent("onLocationChange"); } }, onStateChange: function onStateChange(aBrowser) { if (aBrowser == tab.linkedBrowser) { recordEvent("onStateChange"); } }, onLinkIconAvailable: function onLinkIconAvailable(aBrowser) { if (aBrowser == tab.linkedBrowser) { recordEvent("onLinkIconAvailable"); } }, };