What do I name my files? How do I run a single test?

Question

In jest one names a file thing.jest.ts. You can then run jest thing.jest.ts or point jest at a folder of test files eg jest some_folder/sub_folder.

How do I do this with AVA?

---

Things that don't work:

1. Can't use wildcards

$ ava /**/*.test.ts
✖ /**/*.test.ts does not exist.

2. Can't directly point to a file... maybe typescript doesn't work

$ ava ./src/Derivations/Sources/__tests/Source.test.ts 

3. Can't run with ts-node

$ ts-node ./src/Derivations/Sources/__tests/Source.test.ts 
Test files must be run with the AVA CLI:
    $ ava src/Derivations/Sources/__tests/Source.test.ts    

Answer 1

This just requires some config. By default though, AVA does not currently (Jan 2020) support Typescript files.

https://github.com/avajs/ava/blob/master/docs/recipes/typescript.md

You can configure AVA to recognize TypeScript files. Then, with ts-node installed (npm i ts-node --save-dev), you can compile them on the fly.

package.json:

{
    "ava": {
        "compileEnhancements": false,
        "extensions": [
            "ts"
        ],
        "require": [
            "ts-node/register"
        ]
    }
}