When component emit update:modelValue，why v-model value not change

[aringlai]

test case

test('WDraggable 1 to 2', async () => {
        const list = ref([1, 2, 3, 4, 5]);
        const wrapper = mount(WDraggable, {
            props: {
                modelValue: list
            },
            slots: {
                default: slotsRender
            }
        });
        await nextTick();
        const children = wrapper.findAll('li');
        await children[0].trigger('mousedown');
        expect(children[0].attributes('draggable')).toBe('true');
        await children[1].trigger('dragover');
        await children[1].trigger('dragend');
        await nextTick();
        expect(list.value.join(',')).toBe('2,1,3,4,5');
    });

test result：

  ● Draggable › WDraggable 1 to 2

    expect(received).toBe(expected) // Object.is equality

    Expected: "2,1,3,4,5"
    Received: "1,2,3,4,5"

      37 |         await children[1].trigger('dragover');
      38 |         await children[1].trigger('dragend');
    > 39 |         expect(list.value.join(',')).toBe('2,1,3,4,5');
         |                                      ^
      40 |     });
      41 |
      42 |     test('WDraggable disabled', async () => {

when trigger dragover event，WDraggable component will emit update:modelValue with the param is "[2,1,3,4,5]"，I expect list = [2,1,3,4,5]，but actually list = [1,2,3,4,5]

Why the v-model value(list) not change？

[standbyoneself]

Can you share your component? How exactly the list should be changed?

[lmiller1990]

Anything passed to the props option will not be mutated. You could assert against wrapper.emitted(), your updated payload should be there (perhaps in an update:modelValue emitted event).

If you can share the whole code, someone can provide you a working example.

[aringlai]

Anything passed to the props option will not be mutated. You could assert against wrapper.emitted(), your updated payload should be there (perhaps in an update:modelValue emitted event).

If you can share the whole code, someone can provide you a working example.

Thanks！I use assert against wrapper.emitted()