jest_lint

Lint your Jest unit tests to find problems. Built with Rust.

Right now this is a simple tool to check that you have mocked your imports. But if you have an idea for adding a new feature, feel free to suggest

If you want to ignore a region of imports (e.g. if you intentionally don't want to mock them), you can use a region: // #region not-mocked (see the samples dir for more context)

Getting started

First: Install Rust and Cargo

Then, either install the published create (easy) or download from this repo.

Install published crate (easy)

cargo install jest_lint
jest_lint --help

To test for mocks in all your files:

jest_lint -m

To test for mocks in files for a specific dir:

jest_lint -d path/to/files

To test for mocks in a single file:

jest_lint -m -f path/to/foobar.test.js

Latest development build

Download this repository.

cd jest_lint
cargo run -- --help

PRs welcome!

Tips & Tricks

If you're using VS Code, you can add a task to .vscode/tasks.json to run jest_lint on the current file:

{
  "label": "jest_lint",
  "type": "shell",
  "command": "jest_lint -mf ${file}"
}

Then you can use a keyboard shortcut to check your mocks while you have your .spec.* or .test.* file open.