Testing breadcrumbs with overflow

[erbeto]

I’m trying to test my breadcrumb component based on the ‘Breadcrumb With Overflow’ example, but I can’t get the overflow button to appear during testing. Has anyone encountered this issue or have any suggestions on how to properly trigger the overflow state?

Update: Had to mock the resize observer. jsdom-testing-mocks (https://www.npmjs.com/package/jsdom-testing-mocks) worked wonders!

[ValentinaKozlova]

Closing as the issue was resolved