michael@0: /* Any copyright is dedicated to the Public Domain.
michael@0:    http://creativecommons.org/publicdomain/zero/1.0/ */
michael@0: 
michael@0: // This test ensures that attempts made to save/restore ("duplicate") pages
michael@0: // using designmode AND make changes to document structure (remove body)
michael@0: // don't result in uncaught errors and a broken browser state.
michael@0: 
michael@0: function test() {
michael@0:   waitForExplicitFinish();
michael@0: 
michael@0:   let testURL = "http://mochi.test:8888/browser/" +
michael@0:     "browser/components/sessionstore/test/browser_739531_sample.html";
michael@0: 
michael@0:   let loadCount = 0;
michael@0:   let tab = gBrowser.addTab(testURL);
michael@0:   tab.linkedBrowser.addEventListener("load", function onLoad(aEvent) {
michael@0:     // make sure both the page and the frame are loaded
michael@0:     if (++loadCount < 2)
michael@0:       return;
michael@0:     tab.linkedBrowser.removeEventListener("load", onLoad, true);
michael@0: 
michael@0:     // executeSoon to allow the JS to execute on the page
michael@0:     executeSoon(function() {
michael@0: 
michael@0:       let tab2;
michael@0:       let caughtError = false;
michael@0:       try {
michael@0:         tab2 = ss.duplicateTab(window, tab);
michael@0:       }
michael@0:       catch (e) {
michael@0:         caughtError = true;
michael@0:         info(e);
michael@0:       }
michael@0: 
michael@0:       is(gBrowser.tabs.length, 3, "there should be 3 tabs")
michael@0: 
michael@0:       ok(!caughtError, "duplicateTab didn't throw");
michael@0: 
michael@0:       // if the test fails, we don't want to try to close a tab that doesn't exist
michael@0:       if (tab2)
michael@0:         gBrowser.removeTab(tab2);
michael@0:       gBrowser.removeTab(tab);
michael@0: 
michael@0:       finish();
michael@0:     });
michael@0:   }, true);
michael@0: }