#rstestPlugin

rstestPlugin provides Rslint's rules for Rstest. Enable the recommended preset to catch common mistakes in test definitions, assertions, mocks, and snapshots.

#Usage

#Dedicated test files

For projects that keep tests in dedicated test and spec files, apply the preset to those files:

import { defineConfig, rstestPlugin } from '@rslint/core';

export default defineConfig([
  {
    ...rstestPlugin.configs.recommended,
    files: ['**/*.{test,spec}.{js,mjs,jsx,ts,tsx,mts}'],
  },
]);

#In-source tests

When using Rstest's in-source testing, tests live alongside production code and access the test API through import.meta.rstest. Apply the preset to every linted file to check both dedicated test files and in-source tests:

import { defineConfig, rstestPlugin } from '@rslint/core';

export default defineConfig([rstestPlugin.configs.recommended]);

No additional Rslint globals are required for import.meta.rstest.

#Rstack CLI projects

Projects driven by the Rstack CLI import the test API from rstack/test, which re-exports it. Every rule recognizes that specifier alongside @rstest/core, so the preset needs no extra configuration and a file may use either or both:

import { describe, expect, test } from 'rstack/test';

#Configure test types separately

To use different rule settings for dedicated test files and in-source tests, create a configuration item for each group. Use files to match test and spec filenames in one item, and the source patterns from Rstest's includeSource configuration in the other.

#Presets

See Rules & Presets for guidance on choosing and layering presets.