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