no-var-requires.test.ts

import rule from '../../src/rules/no-var-requires';
import { RuleTester } from '../RuleTester';

const ruleTester = new RuleTester({
  parser: '@typescript-eslint/parser',
});

ruleTester.run('no-var-requires', rule, {
  valid: [
    "import foo = require('foo');",
    "require('foo');",
    "require?.('foo');",
    `
import { createRequire } from 'module';
const require = createRequire('foo');
const json = require('./some.json');
    `,
  ],
  invalid: [
    {
      code: "var foo = require('foo');",
      errors: [
        {
          messageId: 'noVarReqs',
          line: 1,
          column: 11,
        },
      ],
    },
    {
      code: "const foo = require('foo');",
      errors: [
        {
          messageId: 'noVarReqs',
          line: 1,
          column: 13,
        },
      ],
    },
    {
      code: "let foo = require('foo');",
      errors: [
        {
          messageId: 'noVarReqs',
          line: 1,
          column: 11,
        },
      ],
    },
    {
      code: "let foo = trick(require('foo'));",
      errors: [
        {
          messageId: 'noVarReqs',
          line: 1,
          column: 17,
        },
      ],
    },
    {
      code: "var foo = require?.('foo');",
      errors: [
        {
          messageId: 'noVarReqs',
          line: 1,
          column: 11,
        },
      ],
    },
    {
      code: "const foo = require?.('foo');",
      errors: [
        {
          messageId: 'noVarReqs',
          line: 1,
          column: 13,
        },
      ],
    },
    {
      code: "let foo = require?.('foo');",
      errors: [
        {
          messageId: 'noVarReqs',
          line: 1,
          column: 11,
        },
      ],
    },
    {
      code: "let foo = trick(require?.('foo'));",
      errors: [
        {
          messageId: 'noVarReqs',
          line: 1,
          column: 17,
        },
      ],
    },
    {
      code: "let foo = trick?.(require('foo'));",
      errors: [
        {
          messageId: 'noVarReqs',
          line: 1,
          column: 19,
        },
      ],
    },
    {
      code: "const foo = require('./foo.json') as Foo;",
      errors: [
        {
          messageId: 'noVarReqs',
          line: 1,
          column: 13,
        },
      ],
    },
    {
      code: "const foo = <Foo>require('./foo.json');",
      errors: [
        {
          messageId: 'noVarReqs',
          line: 1,
          column: 18,
        },
      ],
    },
    {
      code: "const foo: Foo = require('./foo.json').default;",
      errors: [
        {
          messageId: 'noVarReqs',
          line: 1,
          column: 18,
        },
      ],
    },
    {
      // https://github.com/typescript-eslint/typescript-eslint/issues/3883
      code: `
const configValidator = new Validator(require('./a.json'));
configValidator.addSchema(require('./a.json'));
      `,
      errors: [
        {
          messageId: 'noVarReqs',
          line: 2,
          column: 39,
        },
        {
          messageId: 'noVarReqs',
          line: 3,
          column: 27,
        },
      ],
    },
  ],
});