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ChromeUtils.defineESModuleGetters(this, {
SessionStore: "resource:///modules/sessionstore/SessionStore.sys.mjs",
TabStateCache: "resource:///modules/sessionstore/TabStateCache.sys.mjs",
});
add_task(async function () {
await BrowserTestUtils.withNewTab(
"http://example.com",
async function (aBrowser) {
let tab = gBrowser.getTabForBrowser(aBrowser);
await TabStateFlusher.flush(aBrowser);
let before = TabStateCache.get(aBrowser.permanentKey);
let newTab = SessionStore.duplicateTab(window, tab);
await Promise.all([
BrowserTestUtils.browserLoaded(newTab.linkedBrowser),
TestUtils.topicObserved("sessionstore-debug-tab-restored"),
]);
let after = TabStateCache.get(newTab.linkedBrowser.permanentKey);
isnot(
before.history.entries,
after.history.entries,
"The entry objects should not be shared"
);
BrowserTestUtils.removeTab(newTab);
}
);
});
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