https://github.com/nick2bad4u/eslint-plugin-test-signal

ESLint plugin to flag weak tests: snapshot-only coverage, mock-call-only tests, unawaited assertions, no negative path, and empty async tests.
https://github.com/nick2bad4u/eslint-plugin-test-signal
eslint eslint-plugin eslintplugin lint signal test test-quality test-verify tests
Last synced: about 2 months ago
JSON representation
ESLint plugin to flag weak tests: snapshot-only coverage, mock-call-only tests, unawaited assertions, no negative path, and empty async tests.
Host: GitHub
URL: https://github.com/nick2bad4u/eslint-plugin-test-signal
Owner: Nick2bad4u
License: mit
Created: 2026-05-17T05:30:46.000Z (about 2 months ago)
Default Branch: main
Last Pushed: 2026-05-17T18:59:40.000Z (about 2 months ago)
Last Synced: 2026-05-17T19:38:06.277Z (about 2 months ago)
Topics: eslint, eslint-plugin, eslintplugin, lint, signal, test, test-quality, test-verify, tests
Language: TypeScript
Homepage: https://nick2bad4u.github.io/eslint-plugin-test-signal/
Size: 1.22 MB
Stars: 0
Watchers: 0
Forks: 0
Open Issues: 0
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- Contributing: CONTRIBUTING.md
- Funding: .github/FUNDING.yml
- License: LICENSE
- Code of conduct: CODE_OF_CONDUCT.md
- Codeowners: CODEOWNERS
- Security: SECURITY.md
- Support: SUPPORT.md
- Agents: AGENTS.md
Awesome Lists containing this project

README

          # eslint-plugin-test-signal

[![npm license.](https://flat.badgen.net/npm/license/eslint-plugin-test-signal?color=purple)](https://github.com/Nick2bad4u/eslint-plugin-test-signal/blob/main/LICENSE) [![npm total downloads.](https://flat.badgen.net/npm/dt/eslint-plugin-test-signal?color=pink)](https://www.npmjs.com/package/eslint-plugin-test-signal) [![latest GitHub release.](https://flat.badgen.net/github/release/Nick2bad4u/eslint-plugin-test-signal?color=cyan)](https://github.com/Nick2bad4u/eslint-plugin-test-signal/releases) [![GitHub stars.](https://flat.badgen.net/github/stars/Nick2bad4u/eslint-plugin-test-signal?color=yellow)](https://github.com/Nick2bad4u/eslint-plugin-test-signal/stargazers) [![GitHub forks.](https://flat.badgen.net/github/forks/Nick2bad4u/eslint-plugin-test-signal?color=green)](https://github.com/Nick2bad4u/eslint-plugin-test-signal/forks) [![GitHub open issues.](https://flat.badgen.net/github/open-issues/Nick2bad4u/eslint-plugin-test-signal?color=red)](https://github.com/Nick2bad4u/eslint-plugin-test-signal/issues) [![codecov.](https://codecov.io/gh/Nick2bad4u/eslint-plugin-test-signal/branch/main/graph/badge.svg)](https://codecov.io/gh/Nick2bad4u/eslint-plugin-test-signal)

ESLint plugin for flagging weak tests before they become false confidence.

The first rule set focuses on:

- snapshot-only coverage;

- mock-call-only tests;

- unawaited Promise assertions;

- async tests without assertions;

- suites that never exercise a negative path.

## Table of contents

1. [Installation](#installation)

2. [Quick start](#quick-start)

3. [Presets](#presets)

4. [Rules](#rules)

5. [Compatibility](#compatibility)

## Installation

```sh

npm install --save-dev eslint-plugin-test-signal eslint typescript

```

## Quick start

```ts

import testSignal from "eslint-plugin-test-signal";

export default [testSignal.configs.recommended];

```

The bundled presets target common test file globs and register

`@typescript-eslint/parser` automatically.

## Presets

```ts

import testSignal from "eslint-plugin-test-signal";

export default [

    testSignal.configs.minimal,

    // testSignal.configs.recommended,

    // testSignal.configs["recommended-type-checked"],

    // testSignal.configs.strict,

    // testSignal.configs.all,

    // testSignal.configs.experimental,

];

```

| Preset                                                                                                                                                 | Intent                                               |

| ------------------------------------------------------------------------------------------------------------------------------------------------------ | ---------------------------------------------------- |

| [`testSignal.configs.minimal`](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/minimal)                                      | Lowest-noise async correctness checks.               |

| [`testSignal.configs.recommended`](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/recommended)                              | Default weak-test signal coverage.                   |

| [`testSignal.configs["recommended-type-checked"]`](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/recommended-type-checked) | Compatibility preset for future typed rules.         |

| [`testSignal.configs.strict`](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/strict)                                        | Recommended plus negative-path coverage enforcement. |

| [`testSignal.configs.all`](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/all)                                              | Every stable rule.                                   |

| [`testSignal.configs.experimental`](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/experimental)                            | Stable rules plus future candidates.                 |

## Rules

- `Fix` legend:

  - `fix` = autofixable

  - `suggest` = suggestions available

  - `-` = report only

- `Preset key` legend:

  - [🟢](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/minimal) - [`testSignal.configs.minimal`](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/minimal)

  - [🟡](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/recommended) - [`testSignal.configs.recommended`](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/recommended)

  - [🟠](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/recommended-type-checked) - [`testSignal.configs["recommended-type-checked"]`](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/recommended-type-checked)

  - [🔴](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/strict) - [`testSignal.configs.strict`](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/strict)

  - [🟣](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/all) - [`testSignal.configs.all`](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/all)

  - [🧪](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/experimental) - [`testSignal.configs.experimental`](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/experimental)

| Rule | Fix | Preset key |

| --- | :-: | :-- |

| [`no-assertions-in-hooks`](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/no-assertions-in-hooks) | - | [🔴](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/strict) [🟣](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/all) |

| [`no-async-foreach-assertions`](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/no-async-foreach-assertions) | - | [🟡](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/recommended) [🔴](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/strict) [🟣](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/all) |

| [`no-broad-object-key-count-assertions`](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/no-broad-object-key-count-assertions) | - | [🔴](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/strict) [🟣](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/all) |

| [`no-conditional-assertions`](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/no-conditional-assertions) | - | [🟡](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/recommended) [🔴](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/strict) [🟣](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/all) |

| [`no-constant-assertions`](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/no-constant-assertions) | - | [🟡](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/recommended) [🔴](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/strict) [🟣](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/all) |

| [`no-disabled-tests`](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/no-disabled-tests) | - | [🟡](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/recommended) [🔴](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/strict) [🟣](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/all) |

| [`no-duplicate-assertions`](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/no-duplicate-assertions) | - | [🔴](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/strict) [🟣](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/all) |

| [`no-empty-async-tests`](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/no-empty-async-tests) | - | [🟢](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/minimal) [🟡](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/recommended) [🔴](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/strict) [🟣](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/all) |

| [`no-fixed-delay-tests`](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/no-fixed-delay-tests) | - | [🔴](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/strict) [🟣](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/all) |

| [`no-focused-tests`](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/no-focused-tests) | - | [🟢](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/minimal) [🟡](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/recommended) [🔴](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/strict) [🟣](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/all) |

| [`no-identical-expected-actual`](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/no-identical-expected-actual) | - | [🟡](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/recommended) [🔴](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/strict) [🟣](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/all) |

| [`no-mock-call-only-tests`](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/no-mock-call-only-tests) | - | [🟡](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/recommended) [🔴](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/strict) [🟣](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/all) |

| [`no-snapshot-only-tests`](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/no-snapshot-only-tests) | - | [🟡](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/recommended) [🔴](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/strict) [🟣](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/all) |

| [`no-synthetic-promise-assertions`](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/no-synthetic-promise-assertions) | - | [🟡](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/recommended) [🔴](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/strict) [🟣](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/all) |

| [`no-tautological-length-assertions`](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/no-tautological-length-assertions) | - | [🟡](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/recommended) [🔴](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/strict) [🟣](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/all) |

| [`no-try-catch-assertions`](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/no-try-catch-assertions) | - | [🔴](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/strict) [🟣](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/all) |

| [`no-vacuous-numeric-assertions`](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/no-vacuous-numeric-assertions) | - | [🟡](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/recommended) [🔴](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/strict) [🟣](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/all) |

| [`no-vacuous-string-assertions`](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/no-vacuous-string-assertions) | - | [🟡](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/recommended) [🔴](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/strict) [🟣](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/all) |

| [`no-weak-asymmetric-assertions`](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/no-weak-asymmetric-assertions) | - | [🟡](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/recommended) [🔴](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/strict) [🟣](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/all) |

| [`no-weak-existence-assertions`](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/no-weak-existence-assertions) | - | [🟡](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/recommended) [🔴](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/strict) [🟣](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/all) |

| [`no-weak-truthy-assertions`](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/no-weak-truthy-assertions) | - | [🟡](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/recommended) [🔴](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/strict) [🟣](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/all) |

| [`require-assertions`](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/require-assertions) | - | [🟡](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/recommended) [🔴](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/strict) [🟣](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/all) |

| [`require-awaited-async-assertions`](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/require-awaited-async-assertions) | - | [🟢](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/minimal) [🟡](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/recommended) [🔴](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/strict) [🟣](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/all) |

| [`require-error-message-assertions`](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/require-error-message-assertions) | - | [🔴](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/strict) [🟣](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/all) |

| [`require-negative-path`](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/require-negative-path) | - | [🔴](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/strict) [🟣](https://nick2bad4u.github.io/eslint-plugin-test-signal/docs/rules/presets/all) |

## Compatibility

- Supported ESLint versions: `9.x` and `10.x`

- Config system: Flat Config

- Node.js runtime: `>=22.0.0`
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