salix/services/loopback/common/methods/client/specs/getDebt.spec.js

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

describe('client getDebt()', () => {
    it('should return the client debt', async() => {
        let result = await app.models.Client.getDebt(101);

        expect(result.debt).toEqual(880.1);
    });
});