salix/modules/invoiceIn/back/methods/invoice-in/specs/summary.spec.js

const app = require('vn-loopback/server/server');

describe('invoiceIn summary()', () => {
    it('should return a summary object containing data from one invoiceIn', async() => {
        const tx = await app.models.Entry.beginTransaction({});
        const options = {transaction: tx};

        try {
            const summary = await app.models.InvoiceIn.summary(1, options);

            expect(summary.supplierRef).toEqual('1234');

            await tx.rollback();
        } catch (e) {
            await tx.rollback();
            throw e;
        }
    });
});