Question 1

How to set up eslint-plugin-testing-library with React and TypeScript?

Accepted Answer

Install the plugin, extend 'plugin:testing-library/react' in your ESLint config, and ensure you have @typescript-eslint/parser configured. Use overrides to apply it only to test files, and check compatibility with your TypeScript version.

Question 2

What are the most critical rules to enable first?

Accepted Answer

Start with await-async-queries to prevent flaky async tests, no-dom-import to avoid direct DOM access, and prefer-find-by for cleaner async element queries. These enforce core Testing Library best practices and are auto-fixable in many cases.

Question 3

eslint-plugin-testing-library vs eslint-plugin-jest: which one should I use?

Accepted Answer

Use eslint-plugin-testing-library for Testing Library-specific patterns like query handling and user-event simulation. Use eslint-plugin-jest for general Jest features like mock management. They complement each other and can be combined in a project.

Question 4

How to disable a rule like no-debugging-utils in a specific test?

Accepted Answer

Use ESLint disable comments, e.g., // eslint-disable-next-line testing-library/no-debugging-utils above the line, or adjust the rule severity to 'off' in your .eslintrc for targeted files via overrides.

Question 5

Does eslint-plugin-testing-library work with Vue 3 or SvelteKit?

Accepted Answer

Yes, it supports Vue Testing Library and Svelte Testing Library through framework-specific configurations. Ensure you're using the compatible Testing Library adapter versions and extend the appropriate config (e.g., plugin:testing-library/vue).

Question 6

What if a rule gives false positives or conflicts with my code style?

Accepted Answer

Review the rule documentation linked in the README for edge cases, fine-tune rule options in your ESLint config, or use ESLint disable comments. Consider reporting issues on GitHub if it's a bug.

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