text: class ResizeObserverMock {
    constructor(fn) {
      this.fn = fn
      ResizeObserverMock.instances.push(this)
    }
  
    observe() {
      this.fn([{
        contentRect: { bottom: 0, height: 0, left: 0, right: 0, top: 0, width: 0 }
      }])
    }
  
    unobserve() {
      ResizeObserverMock.instances = []
    }
  }
  
  ResizeObserverMock.instances = []
  
  ResizeObserverMock.simulateResize = () => {
    ResizeObserverMock.instances.forEach((target) => {
      target.fn([{
        contentRect: { bottom: 10, height: 10, left: 10, right: 10, top: 10, width: 10 }
      }])
    })
  }
  
  export default ResizeObserverMock
  