.eslintrc.yaml

## Test-specific linter rules

env:
  node: true
  es6: true

rules:
  multiline-comment-style: [error, separate-lines]
  prefer-const: error
  symbol-description: off
  comma-dangle: [error, always-multiline]

  no-restricted-syntax:
    # Config copied from .eslintrc.js
    - error
    - selector: CallExpression:matches([callee.name='deepStrictEqual'], [callee.property.name='deepStrictEqual']):matches([arguments.1.type='Literal']:not([arguments.1.regex]), [arguments.1.type='Identifier'][arguments.1.name='undefined'])
      message: Use strictEqual instead of deepStrictEqual for literals or undefined.
    - selector: CallExpression:matches([callee.name='notDeepStrictEqual'], [callee.property.name='notDeepStrictEqual']):matches([arguments.1.type='Literal']:not([arguments.1.regex]), [arguments.1.type='Identifier'][arguments.1.name='undefined'])
      message: Use notStrictEqual instead of notDeepStrictEqual for literals or undefined.
    - selector: CallExpression:matches([callee.name='deepStrictEqual'], [callee.property.name='deepStrictEqual'])[arguments.2.type='Literal']
      message: Do not use a literal for the third argument of assert.deepStrictEqual()
    - selector: CallExpression:matches([callee.name='doesNotThrow'], [callee.property.name='doesNotThrow'])
      message: Do not use `assert.doesNotThrow()`. Write the code without the wrapper and add a comment instead.
    - selector: CallExpression:matches([callee.name='doesNotReject'], [callee.property.name='doesNotReject'])
      message: Do not use `assert.doesNotReject()`. Write the code without the wrapper and add a comment instead.
    - selector: CallExpression:matches([callee.name='rejects'], [callee.property.name='rejects'])[arguments.length<2]
      message: '`assert.rejects()` must be invoked with at least two arguments.'
    - selector: CallExpression[callee.property.name='strictEqual'][arguments.2.type='Literal']
      message: Do not use a literal for the third argument of assert.strictEqual()
    - selector: CallExpression:matches([callee.name='throws'], [callee.property.name='throws'])[arguments.1.type='Literal']:not([arguments.1.regex])
      message: Use an object as second argument of `assert.throws()`.
    - selector: CallExpression:matches([callee.name='throws'], [callee.property.name='throws'])[arguments.length<2]
      message: '`assert.throws()` must be invoked with at least two arguments.'
    - selector: CallExpression[callee.name='setInterval'][arguments.length<2]
      message: '`setInterval()` must be invoked with at least two arguments.'
    - selector: ThrowStatement > CallExpression[callee.name=/Error$/]
      message: Use `new` keyword when throwing an `Error`.
    - selector: CallExpression:matches([callee.name='notDeepStrictEqual'], [callee.property.name='notDeepStrictEqual'])[arguments.0.type='Literal']:not([arguments.1.type='Literal']):not([arguments.1.type='ObjectExpression']):not([arguments.1.type='ArrayExpression']):not([arguments.1.type='UnaryExpression'])
      message: The first argument should be the `actual`, not the `expected` value.
    - selector: CallExpression:matches([callee.name='notStrictEqual'], [callee.property.name='notStrictEqual'])[arguments.0.type='Literal']:not([arguments.1.type='Literal']):not([arguments.1.type='ObjectExpression']):not([arguments.1.type='ArrayExpression']):not([arguments.1.type='UnaryExpression'])
      message: The first argument should be the `actual`, not the `expected` value.
    - selector: CallExpression:matches([callee.name='deepStrictEqual'], [callee.property.name='deepStrictEqual'])[arguments.0.type='Literal']:not([arguments.1.type='Literal']):not([arguments.1.type='ObjectExpression']):not([arguments.1.type='ArrayExpression']):not([arguments.1.type='UnaryExpression'])
      message: The first argument should be the `actual`, not the `expected` value.
    - selector: CallExpression:matches([callee.name='strictEqual'], [callee.property.name='strictEqual'])[arguments.0.type='Literal']:not([arguments.1.type='Literal']):not([arguments.1.type='ObjectExpression']):not([arguments.1.type='ArrayExpression']):not([arguments.1.type='UnaryExpression'])
      message: The first argument should be the `actual`, not the `expected` value.
    - selector: CallExpression[callee.name='isNaN']
      message: Use Number.isNaN() instead of the global isNaN() function.
    - selector: VariableDeclarator > CallExpression:matches([callee.name='debuglog'], [callee.property.name='debuglog']):not([arguments.0.value='test'])
      message: Use 'test' as debuglog value in tests.
    - selector: CallExpression:matches([callee.object.name="common"][callee.property.name=/^mustCall/],[callee.name="mustCall"],[callee.name="mustCallAtLeast"])>:first-child[type=/FunctionExpression$/][body.body.length=0]
      message: Do not use an empty function, omit the parameter altogether.

  # Custom rules in tools/eslint-rules
  node-core/prefer-assert-iferror: error
  node-core/prefer-assert-methods: error
  node-core/prefer-common-mustnotcall: error
  node-core/prefer-common-mustsucceed: error
  node-core/crypto-check: error
  node-core/eslint-check: error
  node-core/async-iife-no-unused-result: error
  node-core/inspector-check: error
  ## common module is mandatory in tests
  node-core/required-modules:
    - error
    - common: common(/index\.(m)?js)?$
  node-core/require-common-first: error
  node-core/no-duplicate-requires: off

# Global scoped methods and vars
globals:
  WebAssembly: false

overrides:
  - files:
      - addons/*/*.js
      - async-hooks/*.js
      - common/*.js
      - es-module/*.js
      - es-module/*.mjs
      - internet/*.js
      - js-native-api/*/*.js
      - known_issues/*.js
      - message/*.js
      - node-api/*/*.js
      - parallel/*.js
      - parallel/*.mjs
      - pseudo-tty/*.js
      - pummel/*.js
      - sequential/*.js
      - sequential/*.mjs
    rules:
      comma-dangle: [error, {
        arrays: always-multiline,
        exports: only-multiline,
        functions: only-multiline,
        imports: only-multiline,
        objects: only-multiline,
      }]