How to Run Unit Tests for My Node-RED Custom Node?

Developing Nodes
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I’m working on creating a custom Node-RED node following the Creating Your First Node guide from the official documentation.

I have successfully created the required files:

  1. lower-case.js (the node definition)
  2. lower-case.html (for the node’s editor UI)
  3. test/lower-case_spec.js (for unit testing using node-red-node-test-helper)

I followed the steps to write my unit test using the node-red-node-test-helper and the sample lower-case_spec.js file.
I’m trying to run the tests, but I’m not sure about the exact command or steps.

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