test: mock ResizeObserver

Author: gabrieljablonski

src/test/jest-setup.js

@@ -2,3 +2,9 @@ import React from 'react'
 // whatever else you need in here
 
 global.React = React
+
+global.ResizeObserver = jest.fn().mockImplementation(() => ({
+  observe: jest.fn(),
+  unobserve: jest.fn(),
+  disconnect: jest.fn(),
+}))