3 testing (#4)

* ncu

* add mocha chai to dev

* Update README.md

* npm test

* Add node GitHub Action

* helper method `run`

* check action pwd

* clean build -> dist/src

* test age

.github/workflows/node.js.yml

@@ -28,4 +28,6 @@ jobs:
         cache: 'npm'
     - run: npm ci
     - run: npm run build --if-present
+    - run: pwd
+    - run: ls -la dist
     - run: npm test

README.md

@@ -4,27 +4,29 @@ Demo project to create/test CLIs written using TypeScript
 It is surprisingly difficult to find a currently-working example of how
 to create and test Command-Line Interfaces (CLIs) written in TypeScript.
 
-# Purpose
-
 This project updates the
 [How to Create a Testable CLI using TypeScript?](https://www.realpythonproject.com/how-to-create-a-testable-cli-using-typescript/)
 from Jan 2023 with various fixes that were not obvious (at least to me).
 
 These include:
 
-*  Restricting to "chalk": "^4.1.2"
+* Restricting "chalk" to "^4.1.2"
+* Avoiding the confusingly-named 'npm run install'
+* import { expect } from "chai";
+* "test" : "mocha --require ts-node/register test/**/*.ts"
+* Add node GitHub Action (tests dist/src/index.js, not installed version) 
 
-## Functionality
 
-Use `npm run` to see all commands:
+## Usage
 
 ```bash
-$ npm run hello
+$ npm run ts-cli-install
+$ ts-cli hello
 Hello, World!
-$ npm run hello Universe!
+$ ts-cli hello Universe!
 Hello, Universe!!
-$ npm run calc -o multiply 10 16 # or: add | divide
+$ ts-cli calc -o multiply 10 16 # or: add | divide
 160
-$ npm run age Ernie # Use axios to call the agify API 
+$ ts-cli age Ernie # Use axios to call the agify API 
 Ernie - 74
 ```