text: const portfolioOptNode = require('../../nodes/quantum-algorithms/portfolio-optimisation/portfolio-optimisation.js');
  const testUtil = require('../test-util');
  const nodeTestHelper = testUtil.nodeTestHelper;
  const assert = require('chai').assert;
  const errors = require('../../nodes/errors');
  const {FlowBuilder} = require('../flow-builder');
  
  const flow = new FlowBuilder();
  
  describe('PortfolioOptimisationNode', function() {
    beforeEach(function(done) {
      nodeTestHelper.startServer(done);
    });
  
    afterEach(function(done) {
      flow.reset();
      nodeTestHelper.unload();
      nodeTestHelper.stopServer(done);
    });
  
    it('load node', function(done) {
      testUtil.isLoaded(portfolioOptNode, 'portfolio-optimisation', done);
    });
  });
  