Registry / testing / babel-plugin-ava-throws-helper

babel-plugin-ava-throws-helper

library1.0.0jsnpmunverified

A Babel plugin that provides compile-time protection against improper use of `t.throws()` in the AVA test framework. It transforms code to detect when a value rather than a function is passed, issuing clear error messages. This plugin is internal to AVA and not intended for direct use; version 1.0.0 is the current stable release, with no recent updates. It differs from eslint-plugin-ava by offering a more robust, AST-based solution for a common mistake where users write `t.throws(foo())` instead of `t.throws(() => foo())`.

testing

npm install babel-plugin-ava-throws-helper

github ↗package ↗

INSTALL

IMPORT

SIG · BABEL-PLUGIN-AVA-T

babel-plugin-ava-throws-helper

testingjavascriptv1.0.0

Install

—

Import

—

Disk

—

Pass rate

0/ 6

Env Coverage0 / 6

glibc

18–22

musl

18–22

Install & Compatibility

Where this runs

tested against v? · npm install

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

node 18–226 runs

build_error

glibc

node 18–226 runs

build_error

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

default

✓ import plugin from 'babel-plugin-ava-throws-helper'

✗ const plugin = require('babel-plugin-ava-throws-helper')

Plugin is typically used in .babelrc or babel.config.js as a string 'babel-plugin-ava-throws-helper'.

ava-throws-helper

✓ // .babelrc { "plugins": ["babel-plugin-ava-throws-helper"] }

✗ { "plugins": ["ava-throws-helper"] }

The full package name must be used in .babelrc to avoid ambiguity.

Shows installation, Babel configuration, and usage of the plugin to catch incorrect t.throws() calls.

// Install the plugin npm install babel-plugin-ava-throws-helper --save-dev // .babelrc { "plugins": ["babel-plugin-ava-throws-helper"] } // Using AVA test import test from 'ava'; test('throws test', t => { t.throws(() => { throw new Error('err'); }); // OK }); test('invalid throws', t => { // This would be transformed to produce a helpful error at runtime t.throws(new Error('err')); });

Debug

Known issues

breakingThis plugin only works with AVA's t.throws() and may not be compatible with future AVA versions.

fix

Ensure AVA version compatibility; this plugin is internal and may be removed in future AVA releases.

affects: >=1.0.0

gotchaThe plugin does not prevent all runtime errors; it only aids detection when used via Babel.

fix

Always wrap t.throws() arguments in a function as best practice.

affects: >=1.0.0

Errors

Common errors & fixes

Error: Couldn't find preset "stage-2" relative to directory

Missing required Babel preset

fix

Install the missing preset: npm install babel-preset-stage-2 --save-dev

ReferenceError: test is not defined

AVA test runner not properly set up

fix

Ensure AVA is installed and you are running tests with 'npx ava'

Upgrade

Version history

1.0.0latest on npm

Audit

Dependencies

babel-corerequiredBabel plugin requires Babel's transformation API

Agent activity

17 hits · last 30 days

node

OpenAI (training)

Resources

githubhttps://github.com/avajs/babel-plugin-ava-throws-helper ↗

packagehttps://www.npmjs.com/package/babel-plugin-ava-throws-helper ↗