Function assertCall

packages/runtime-core/__tests__/apiOptions.spec.ts:193–196

(spy: Mock, callIndex: number, args: any[])

    render(h(Comp), root)

    function assertCall(spy: Mock, callIndex: number, args: any[]) {
      expect(spy.mock.calls[callIndex].slice(0, 2)).toMatchObject(args)
      expect(spy.mock.results[callIndex].value).toBe(ctx)
    }

    ctx.foo++
    await nextTick()