<multiselect
      v-model="subdivision"
      :options="options"
      :multiple="false"
      :close-on-select="true"
      :clear-on-select="false"
      :preserve-search="false"
      placeholder="Please select"
      label="name"
      track-by="name"
      :preselect-first="false"
      selectedLabel="✓"
      deselectLabel="×"
      selectLabel=" "
      ref="myMultiselect"
      id="multiselectId"
    ></multiselect>

     computed: {
       subdivision: {
         set(value) {
           this.$store.dispatch("subdivision",value);
       },get(value) {
           return this.$store.state.subdivision;
       }
     }
    }

那是测试：

describe('Value change of subdivision',() => {
  let multiselect;
  let cmp2;
  let actions;
  let mutations;
  let state;
  let getters;

  beforeEach(() => {
    actions = {
      subdivision: jest.fn()
    };
    state = storeConfig.state;
    mutations = storeConfig.mutations;
    getters = storeConfig.getters;
    store = new Vuex.Store({ state,getters,mutations,actions });

    cmp2 = shallowMount(MyComponent,{
      store,localVue,router
    });
  })

  it('Select value should dispatch action',() => {
    let multiselect = cmp2.find({ ref: 'myMultiselect' });
    multiselect.trigger('input',subdivisions[1]);
    expect(actions.subdivision).toHaveBeenCalled();
  })
})

它不起作用。 我收到以下错误。

expect(jest.fn()).toHaveBeenCalled()
Expected mock function to have been called.

怎么了？ 请帮忙。