CoCalc -- no-named-export.js

GitHub Repository: epidemian/eslint-plugin-import
Path: blob/main/tests/src/rules/no-named-export.js
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import { RuleTester } from 'eslint';
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import { test } from '../utils';
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const ruleTester = new RuleTester();
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const rule = require('rules/no-named-export');
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ruleTester.run('no-named-export', rule, {
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  valid: [
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    test({
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      code: 'export default function bar() {};',
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    }),
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    test({
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      code: 'let foo; export { foo as default }',
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    }),
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    test({
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      code: 'export default from "foo.js"',
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      parser: require.resolve('babel-eslint'),
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    }),
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    // no exports at all
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    test({
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      code: `import * as foo from './foo';`,
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    }),
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    test({
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      code: `import foo from './foo';`,
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    }),
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    test({
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      code: `import {default as foo} from './foo';`,
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    }),
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  ],
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  invalid: [
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    test({
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      code: `
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        export const foo = 'foo';
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        export const bar = 'bar';
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      `,
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      errors: [{
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        type: 'ExportNamedDeclaration',
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        message: 'Named exports are not allowed.',
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      }, {
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        type: 'ExportNamedDeclaration',
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        message: 'Named exports are not allowed.',
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      }],
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    }),
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    test({
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      code: `
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        export const foo = 'foo';
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        export default bar;`,
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      errors: [{
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        type: 'ExportNamedDeclaration',
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        message: 'Named exports are not allowed.',
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      }],
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    }),
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    test({
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      code: `
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        export const foo = 'foo';
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        export function bar() {};
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      `,
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      errors: [{
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        type: 'ExportNamedDeclaration',
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        message: 'Named exports are not allowed.',
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      }, {
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        type: 'ExportNamedDeclaration',
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        message: 'Named exports are not allowed.',
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      }],
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    }),
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    test({
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      code: `export const foo = 'foo';`,
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      errors: [{
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        type: 'ExportNamedDeclaration',
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        message: 'Named exports are not allowed.',
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      }],
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    }),
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    test({
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      code: `
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        const foo = 'foo';
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        export { foo };
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      `,
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      errors: [{
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        type: 'ExportNamedDeclaration',
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        message: 'Named exports are not allowed.',
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      }],
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    }),
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    test({
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      code: `let foo, bar; export { foo, bar }`,
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      errors: [{
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        type: 'ExportNamedDeclaration',
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        message: 'Named exports are not allowed.',
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      }],
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    }),
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    test({
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      code: `export const { foo, bar } = item;`,
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      errors: [{
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        type: 'ExportNamedDeclaration',
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        message: 'Named exports are not allowed.',
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      }],
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    }),
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    test({
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      code: `export const { foo, bar: baz } = item;`,
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      errors: [{
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        type: 'ExportNamedDeclaration',
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        message: 'Named exports are not allowed.',
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      }],
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    }),
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    test({
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      code: `export const { foo: { bar, baz } } = item;`,
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      errors: [{
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        type: 'ExportNamedDeclaration',
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        message: 'Named exports are not allowed.',
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      }],
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    }),
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    test({
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      code: `
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        let item;
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        export const foo = item;
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        export { item };
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      `,
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      errors: [{
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        type: 'ExportNamedDeclaration',
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        message: 'Named exports are not allowed.',
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      }, {
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        type: 'ExportNamedDeclaration',
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        message: 'Named exports are not allowed.',
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      }],
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    }),
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    test({
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      code: `export * from './foo';`,
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      errors: [{
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        type: 'ExportAllDeclaration',
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        message: 'Named exports are not allowed.',
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      }],
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    }),
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    test({
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      code: `export const { foo } = { foo: "bar" };`,
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      errors: [{
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        type: 'ExportNamedDeclaration',
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        message: 'Named exports are not allowed.',
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      }],
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    }),
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    test({
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      code: `export const { foo: { bar } } = { foo: { bar: "baz" } };`,
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      errors: [{
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        type: 'ExportNamedDeclaration',
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        message: 'Named exports are not allowed.',
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      }],
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    }),
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    test({
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      code: 'export { a, b } from "foo.js"',
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      parser: require.resolve('babel-eslint'),
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      errors: [{
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        type: 'ExportNamedDeclaration',
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        message: 'Named exports are not allowed.',
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      }],
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    }),
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    test({
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      code: `export type UserId = number;`,
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      parser: require.resolve('babel-eslint'),
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      errors: [{
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        type: 'ExportNamedDeclaration',
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        message: 'Named exports are not allowed.',
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      }],
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    }),
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    test({
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      code: 'export foo from "foo.js"',
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      parser: require.resolve('babel-eslint'),
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      errors: [{
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        type: 'ExportNamedDeclaration',
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        message: 'Named exports are not allowed.',
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      }],
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    }),
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    test({
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      code: `export Memory, { MemoryValue } from './Memory'`,
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      parser: require.resolve('babel-eslint'),
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      errors: [{
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        type: 'ExportNamedDeclaration',
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        message: 'Named exports are not allowed.',
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      }],
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    }),
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  ],
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});
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