salix/back/methods/vn-user/specs/change-password.spec.js

const {models} = require('vn-loopback/server/server');

describe('account changePassword()', () => {
    it('should throw an error when old password is wrong', async() => {
        let err;
        await models.VnUser.changePassword(1, 'wrongPassword', 'nightmare.9999')
            .catch(error => err = error.sqlMessage);

        expect(err).toBeDefined();
        expect(err).toEqual('Invalid password');
    });
});