Test Node.js CLIs with Jest and Oclif

where is the expect commands come from ?

where is the expect commands come from?

The expect command is apart of jest and is used to run tests. expect is used to tell the computer what the output should be.

Thanks for this valuable lesson, Shawn. I have a couple of questions:

1. Why do you suggest using Jest instead of Mocha? (current version scaffolds tests using Mocha).
2. To avoid the newline problem is it better to add the /n at the end or expect(ctx.stdout.trim()).toBe('whatever')?

Thanks!

thanks for the lesson. I tried running tests using yarn jest but I'm getting command <name> not found error. Does anyone know how to fix this?

thanks for the lesson. I tried running tests using yarn jest but I'm getting command <name> not found error. Does anyone know how to fix this? You need to put jest as as a script in package.json like below:

{
  "scripts": {
      "jest": "jest"
  } 
}