const getVolume = require('../get-volume'); describe('client getVolume()', () => { it('should call the getVolume method', done => { let ticketFk = 1; let self = jasmine.createSpyObj('self', ['remoteMethod', 'rawSql']); self.rawSql.and.returnValue(Promise.resolve([{volumeData: 100}])); getVolume(self); self.getVolume(ticketFk) .then(result => { expect(result).toEqual([{volumeData: 100}]); done(); }); }); });