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https://github.com/joshuakgoldberg/console-fail-test

Gently fails test runs if the console was used during them. 📢
https://github.com/joshuakgoldberg/console-fail-test

console info jasmine jest karma mocha test warn

Last synced: about 13 hours ago
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Gently fails test runs if the console was used during them. 📢

Host: GitHub
URL: https://github.com/joshuakgoldberg/console-fail-test
Owner: JoshuaKGoldberg
License: mit
Created: 2019-02-28T16:54:42.000Z (over 5 years ago)
Default Branch: main
Last Pushed: 2024-04-29T16:34:20.000Z (5 months ago)
Last Synced: 2024-05-02T01:44:29.599Z (5 months ago)
Topics: console, info, jasmine, jest, karma, mocha, test, warn
Language: TypeScript
Homepage:
Size: 1.76 MB
Stars: 13
Watchers: 15
Forks: 5
Open Issues: 24
Metadata Files:
- Readme: README.md
- Contributing: .github/CONTRIBUTING.md
- Funding: .github/FUNDING.yml
- License: LICENSE.md
- Code of conduct: .github/CODE_OF_CONDUCT.md
- Security: .github/SECURITY.md

Awesome Lists containing this project

README

console-fail-test

Gently fails test runs if the console was used during them. 📢

## Why?

Logging to the console during tests can be a sign of:

- 🚫 warnings from third-party libraries such as React for improper usage
- 🤕 temporary code that shouldn't be checked into your project
- 📢 unnecessary spam in your tests window

This little library throws an error after each test if a console method was called during it.
It's got some nifty features:

- 📊 Summary of which methods are called with calling arguments
- 🛫 Failures are thrown _after_ tests finish, so your tests will fail normally if they should

```plaintext
stdout | src/index.test.ts > index > example test that console.logs
Whoopsies!

❯ src/index.test.ts (4)
❯ index (4)
× example test that console.logs
⠙ [ afterEach ]
✓ example test that does not console.log

⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯- Failed Tests 1 ⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯-

FAIL src/index.test.ts > index > example test that console.logs
Error: Oh no! Your test called the following console method:
* log (1 call)
> Call 0: "Whoopsies!"
```

## Usage

`console-fail-test` is meant to support any _(test framework)_ & _(spy library)_ combination.
It will auto-detect your combination if possible and use the most appropriate environment hooks and function spies it can find.

For example, in a Jest config:

```js
// jest.config.js
module.exports = {
setupFilesAfterEnv: ["console-fail-test/setup.mjs"],
};
```

> If your package only supports CommonJS, you can use `console-fail-test/setup.cjs`.

### Test Frameworks

See the _Documentation_ link for each supported framework for how to set up console-fail-test with that framework.

Framework
Support?
API Request
Documentation

Ava

✅️

require("ava")

Ava.md

Mocha

✅️
✨

"mocha"

Mocha.md

Jasmine

✅️
✨

"jasmine"

Jasmine.md

Jest

✅️
✨

"jest"

Jest.md

lab

✅

exports.lab

Lab.md

node-tap

✅️

require("node-tap")

NodeTap.md

Vitest

✅️
✨

"vitest"

Vitest.md

Cypress
⚙️

/issues/199

QUnit
⚙️

/issues/19

Playwright
⚙️

/issues/198

tape
⚙️

/issues/17

TestCafe
⚙️

/issues/15

### Spy Libraries

If your test framework provides its own spy library, console-fail-test will by default use that library.
If a supported spy library isn't detected, an internal fallback will be used to spy on `console` methods.

You can request a specific test library using the Node API with its API request:

```js
require("console-fail-test").cft({
spyLibrary: "sinon",
});
```

Library
Support?
API Request
Spy
Documentation

Jasmine

✅️

"jasmine"

jasmine.createSpy()

Jasmine.md#spies

Jest

✅️

"jest"

jest.fn()

Jest.md#spies

Sinon

✅️

require("sinon")

sinon.spy()

Sinon.md#spies

Vitest

✅️

"vitest"

vi.fn()

Vitest.md#spies

## Ignoring `console` methods

By default, `console-fail-test` will error on _any_ called `console` method.
If you'd like allow certain methods, pass a `console` object to the `cft` API when you set it up:

```js
require("console-fail-test").cft({
console: {
warn: true, // won't error on any instance of console.warn
},
});
```

## Development

Requires:

- [Node.js](https://nodejs.org) >14 (LTS)
- [Yarn](https://yarnpkg.com/en)

After [forking the repo from GitHub](https://help.github.com/articles/fork-a-repo):

```shell
git clone https://github.com//console-fail-test
cd console-fail-test
yarn
```

### Contribution Guidelines

We'd love to have you contribute!
Check the [issue tracker](https://github.com/JoshuaKGoldberg/console-fail-test/issues) for issues labeled [`accepting prs`](https://github.com/JoshuaKGoldberg/console-fail-test/issues?utf8=%E2%9C%93&q=is%3Aissue+is%3Aopen+label%3A%22accepting+prs%22) to find bug fixes and feature requests the community can work on.
If this is your first time working with this code, the [`good first issue`](https://github.com/JoshuaKGoldberg/console-fail-test/issues?utf8=%E2%9C%93&q=is%3Aissue+is%3Aopen+label%3A%22good+first+issue%22+) label indicates good introductory issues.

Please note that this project is released with a [Contributor Covenant](https://www.contributor-covenant.org).
By participating in this project you agree to abide by its terms.
See [CODE_OF_CONDUCT.md](./CODE_OF_CONDUCT.md).

## Contributors

_{Colin MacKenzie}
💻 🤔

_{Dimitri Kopriwa}
💻

_{Faraz Patankar}
🐛

_Joel
🤔 💻

_{Josh Goldberg}
🔧 💻 🚧 🚇 🤔 🐛 ⚠️

_{SUZUKI Sosuke}
💻

> 💙 This package is based on [@JoshuaKGoldberg](https://github.com/JoshuaKGoldberg)'s [create-typescript-app](https://github.com/JoshuaKGoldberg/create-typescript-app).