# Testing functions required by my node
**URL:** https://discourse.nodered.org/t/testing-functions-required-by-my-node/16564
**Category:** General
**Created:** [10 October 2019 16:48 UTC](https://discourse.nodered.org/t/testing-functions-required-by-my-node/16564 "2019-10-10T16:48:20Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@serardica](https://discourse.nodered.org/u/serardica)
#### Post date: [10 October 2019 16:48 UTC](https://discourse.nodered.org/t/testing-functions-required-by-my-node/16564/1 "2019-10-10T16:48:21Z")
I have a node into a module like below:
```auto
module.exports = function(RED) {
//requires and global vars here
var host = RED.settings.host || "localhost";
var request;
function myNode(config) {
this.request = config.request;
parseJSON(request);
// do more things here
}
RED.nodes.registerType("my node", myNode);
function parseRequest(request) {
let json = {};
try {
json = JSON.parse(request);
} catch (e) {
node.error(RED._("parsing error occur", {location: "parse"}), request );
}
return json;
}
}
```
I'm trying to do some unit test for the above node through [node-red-node-test-helper](https://github.com/node-red/node-red-node-test-helper) and I wonder if there is a way to test the functions needed by the node "myNode" in this case "parseRequest". There could be more complex functions than the one I used on the example so, considering that scenario, if in my test file code I want to do a unit test for that "parseRequest" function, I face some obstacles:
1. I have no way of invoke the "parseRequest" function since the test file, when try to do something like the below, does not recognize like a function.
```auto
var mynode = require("myNode.js");
mynode.parseRequest({id:1, name:"qwerty"});
```
1. my exported module need an instance of RED object as parameter.
2. the only way I can access that function is if I take it out from the node module and exports it separately, but can trigger another error because of the use of RED into the catch.
I hope you understand my point here
Thanks for the help
---
### Author:  [@miker256](https://discourse.nodered.org/u/miker256)
#### Post date: [11 October 2019 21:26 UTC](https://discourse.nodered.org/t/testing-functions-required-by-my-node/16564/2 "2019-10-11T21:26:48Z")
This should hopefully help you out. 😄
[https://nodered.org/docs/creating-nodes/first-node#unit-testing](https://nodered.org/docs/creating-nodes/first-node#unit-testing)
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