node-red-camunda8/__tests__/process-instance_spec.js

Camunda 8 nodes for Node-RED

const helper = require('node-red-node-test-helper');
const deployNode = require('../src/nodes/process-instance.js');
const camundaNode = require('../src/nodes/camunda');

helper.init(require.resolve('node-red'));

describe('deploy node', () => {
    beforeEach((done) => {
        jest.resetAllMocks();
        helper.startServer(done);
    });

    afterEach((done) => {
        helper.unload();
        helper.stopServer(done);
    });

    it('should call zbc.createProcessInstance', (done) => {
        const flow = [
            {
                id: 'n1',
                type: 'camunda',
                name: 'camunda',
                contactPoint: 'localhost:1234',
            },
            {
                id: 'n2',
                type: 'process-instance',
                name: 'process-instance',
                camunda: 'n1',
                wires: [['n3']],
            },
            { id: 'n3', type: 'helper' },
        ];

        helper.settings({ userDir: '.' });

        helper.load([camundaNode, deployNode], flow, () => {
            const n1 = helper.getNode('n1');
            const n2 = helper.getNode('n2');
            const n3 = helper.getNode('n3');

            n3.on('input', (msg) => {
                Promise.resolve().then(() => {
                    expect(n1.zbc.createProcessInstance).toHaveBeenCalledTimes(
                        1,
                    );
                    expect(n1.zbc.createProcessInstance).toHaveBeenCalledWith(
                        'MyProcess',
                        '{"myVar": "Foo"}',
                    );
                    expect(msg.payload).toEqual({
                        processId: 'MyProcess',
                        variables: '{"myVar": "Foo"}',
                    });
                    done();
                });
            });

            n2.receive({
                payload: {
                    processId: 'MyProcess',
                    variables: '{"myVar": "Foo"}',
                },
            });
        });
    });
});