salix/services/loopback/common/methods/item/specs/clone.spec.js

const app = require(`${servicesDir}/item/server/server`);

describe('item clone()', () => {
    let nextItemId;

    beforeEach(async() => {
        let query = `SELECT i1.id + 1 as id FROM vn.item i1
        LEFT JOIN vn.item i2 ON i1.id + 1 = i2.id
        WHERE i2.id IS NULL ORDER BY i1.id LIMIT 1`;

        [nextAvailableId] = await app.models.Item.rawSql(query);
        nextItemId = nextAvailableId.id;
    });

    it('should', async() => {
        let itemFk = 1;
        let result = await app.models.Item.clone(itemFk);

        expect(result).toEqual(nextItemId);
    });
});