sharmaadityaHQ

  // Available variables:
  // - Machine
  // - interpret
  // - assign
  // - send
  // - sendParent
  // - spawn
  // - raise
  // - actions

sharmaadityaHQ

// The mock function factory
function fn(impl = () => {}) {
  const mockFn = function(...args) {
    mockFn.mock.calls.push(args)
    mockFn.mock.instances.push(this)
    try {
      const value = impl.apply(this, args)
      mockFn.mock.results.push({ type: "return", value })
      return value
    }