salix/modules/ticket/back/methods/sale/specs/priceDifference.spec.js

const app = require('vn-loopback/server/server');
let UserError = require('vn-loopback/util/user-error');

describe('sale priceDifference()', () => {
    it('should return ticket price differences', async() => {
        let data = {
            landed: new Date(),
            addressFk: 121,
            agencyModeFk: 1,
            warehouseFk: 1
        };
        let result = await app.models.Sale.priceDifference(11, data);

        expect(result.totalUnitPrice).toEqual(4.5);
        expect(result.totalNewPrice).toEqual(4.24);
        expect(result.totalDifference).toEqual(3.75);
    });

    it('should return an error if the ticket state is not valid for modifications', async() => {
        let error;
        let data = {
            landed: new Date(),
            addressFk: 121,
            agencyModeFk: 1,
            warehouseFk: 1
        };
        await app.models.Sale.priceDifference(1, data)
            .catch(e => {
                error = e;
            });


        expect(error).toEqual(new UserError(`The sales of this ticket can't be modified`));
    });
});