Help loading node when using Node Test Helper
npm install node-red-node-loaderterminal
$ npm i node-red-node-loader
`Usage
javascript
const nodeArr = new NodeLoader().getNodeArray(fileString)
const nodeArr = new NodeLoader().getNodeArray(fileString,excludeList)
const nodeArr = new NodeLoader().getNodeArrayFromFlow(flowData,excludeList)
//excludeList is optional
`Example
javascript
import {NodeLoader} from 'node-red-node-loader'
import helper from 'node-red-node-test-helper'
import {NodeRedTestServer} from 'node-red-test-helper-tool'
import fs from 'fs/promises'
helper.init(require.resolve('node-red'))describe("test node red flow",()=>{
const FILENAME = __dirname+"/flows/flow.json"
// const nodeLoader = new NodeLoader()
beforeAll((done)=>{
helper.startServer(done)
})
afterAll((done)=>{
helper.stopServer(done)
})
afterEach(()=>{
helper.unload()
})
it("test node loader with node-red-node-loader and using done",(done)=>{
fs.readFile(FILENAME,'utf-8').then(async(res)=>{
const flow = JSON.parse(res)
const nodeArr = new NodeLoader().getNodeArray(res)
const nodeArr2 = new NodeLoader().getNodeArrayFromFlow(flow)
helper.load([...nodeArr],flow,()=>{
const n0 = helper.getNode("n0")
const n1 = helper.getNode("n1")
n0.send({payload:"UpperCase"})
n1.on('input',(msg)=>{
try{
done()
}
catch(err)
{
done(err)
}
})
})
})
})
it("test node loader with node-red-node-loader and using async",async()=>{
await fs.readFile(FILENAME,'utf-8').then(async(res)=>{
const flow = JSON.parse(res)
const nodeArr = new NodeLoader().getNodeArray(res)
await helper.load([...nodeArr],flow)
const n0 = helper.getNode("n0")
const n1 = helper.getNode("n1")
await new Promise((resolve,reject)=>{
n0.send({payload:"UpperCase"})
n1.on('input',(msg)=>{
try{
resolve(msg)
}
catch(err)
{
reject(err)
}
})
})
})
})
it("test node loader with node-red-node-loader, node-red-test-helper-tool and using async",async()=>{
const testServer = new NodeRedTestServer(helper)
await fs.readFile(FILENAME,'utf-8').then(async(res)=>{
const flow = JSON.parse(res)
const nodeArr = new NodeLoader().getNodeArray(res)
const testOuput = await testServer.testFlow(nodeArr,flow,'n0','n1',{payload:"UpperCase"})
})
})
} )
``