我们可以为jest单元测试修改Vuex操作吗？

// main.js
import Vue from 'vue';
import Vuex from 'vuex';

Vue.use(Vuex);

const store = new Vuex.Store({
  state: {
    count: 0
  },
  mutations: {
    increment(state) {
      state.count++;
    }
  },
  actions: {
    incrementAsync({ commit }) {
      setTimeout(() => {
        commit('increment');
      }, 1000);
    }
  }
});

export default store;

// MyComponent.vue
<template>
  <div>
    <p>{{ count }}</p>
    <button @click="increment">Increment</button>
  </div>
</template>

<script>
import { mapState, mapActions } from 'vuex';

export default {
  computed: {
    ...mapState(['count'])
  },
  methods: {
    ...mapActions(['increment'])
  }
};
</script>

// MyComponent.spec.js
import { mount } from '@vue/test-utils';
import MyComponent from './MyComponent.vue';

describe('MyComponent', () => {
  let wrapper;
  let mockStore;

  beforeEach(() => {
    mockStore = {
      state: {
        count: 0
      },
      commit: jest.fn(),
      dispatch: jest.fn()
    };

    wrapper = mount(MyComponent, {
      mocks: {
        $store: mockStore
      }
    });
  });

  it('should render the count correctly', () => {
    expect(wrapper.find('p').text()).toBe('0');
  });

  it('should increment the count when the button is clicked', () => {
    wrapper.find('button').trigger('click');
    expect(mockStore.commit).toHaveBeenCalledWith('increment');
  });

  it('should increment the count asynchronously', () => {
    wrapper.find('button').trigger('click');
    expect(mockStore.dispatch).toHaveBeenCalledWith('incrementAsync');
  });
});