We've created a Tabs component based verbatim on the TabList with Overflow example in the fluent docs. The problem we're facing is how to test it's actually overflowing as we'd expect.
I've created this reduced test as an illustration. Even if we put in a long wait time in the test, the overflow menu button never appears. The only way to trigger the overflow seems to be to explicitly trigger a rerender() on the whole component. Then the overflow menu button will appear.
Does anyone have an suggestions on a "natural" way to get the component to fully render? This only occurs on the tests - not in the actual usages (storybook/app).