test/integration/issues/issue-157.spec.js

import { DataType } from 'node-opcua';
import watch from '../../../src/tasks/watch';
import { importSetup, callScript } from '../../helpers/atscm';

describe.skip('watch task', function () {
  context('when a watched node is deleted', function () {
    it('should not error', async function () {
      const nodeName = await importSetup('issue-157', 'DeleteDisplay');
      const nodeId = `AGENT.DISPLAYS.atSCM.watch.${nodeName}`;

      // Start watch task
      const { serverWatcher } = await watch({ open: false });

      // Wait until deletion is recognized
      const isTestNode = (r) => r.nodeId.value.split(nodeId).length > 1;
      const changeCalled = new Promise((resolve, reject) => {
        serverWatcher.on('change', (r) => {
          if (isTestNode(r)) {
            reject();
          }
        });

        serverWatcher.on('delete', (r) => {
          if (isTestNode(r)) {
            resolve();
          }
        });
      });

      // Delete the node
      await callScript('DeleteNode', {
        nodeId: {
          dataType: DataType.String,
          value: nodeId,
        },
      });

      return changeCalled;
    });
  });
});