React (crazy straw ugly flow) async user scenario test

add-then-reset.test.js

it('adds a todo, then resets the device', (done) => {
  // ... set up component and stores ...
  // we're going to add a todo, then reset to the initState

  expect( reduxStore.getState().get('todos').size )
      .toEqual( TodoList.initState.get('todos').size );

      
  // flow is backwards for async ops below
  const clickResetAndCheck = ()=>{
    const unsubscribe = reduxStore.subscribe(()=>{
    
      expect( reduxStore.getState().get('todos').size )
          .toEqual( TodoList.initState.get('todos').size );

      unsubscribe();
      done();
    });
    
    const resetButton = mountedComponent.find('button.reset').first();
    resetButton.simulate('click');
  };
      
  const unsubscribe = reduxStore.subscribe(()=>{
    expect( reduxStore.getState().get('todos').size )
        .toEqual( TodoList.initState.get('todos').size + 1 );
	
    unsubscribe();
    clickResetAndCheck();
  });
      
  const addTodoButton = mountedComponent.find('button.addTodo').first();
  addTodoButton.simulate('click');
});