no-dupe-class-members.test.ts

import rule from '../../src/rules/no-dupe-class-members';
import { RuleTester } from '../RuleTester';

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

ruleTester.run('no-dupe-class-members', rule, {
  valid: [
    'class A { foo() {} bar() {} }',
    'class A { static foo() {} foo() {} }',
    'class A { get foo() {} set foo(value) {} }',
    'class A { static foo() {} get foo() {} set foo(value) {} }',
    'class A { foo() { } } class B { foo() { } }',
    'class A { [foo]() {} foo() {} }',
    "class A { 'foo'() {} 'bar'() {} baz() {} }",
    "class A { *'foo'() {} *'bar'() {} *baz() {} }",
    "class A { get 'foo'() {} get 'bar'() {} get baz() {} }",
    'class A { 1() {} 2() {} }',
    `
      class Foo {
        foo(a: string): string;
        foo(a: number): number;
        foo(a: any): any {}
      }
    `,
  ],
  invalid: [
    {
      code: 'class A { foo() {} foo() {} }',
      errors: [
        { line: 1, column: 20, messageId: 'unexpected', data: { name: 'foo' } },
      ],
    },
    {
      code: '!class A { foo() {} foo() {} };',
      errors: [
        { line: 1, column: 21, messageId: 'unexpected', data: { name: 'foo' } },
      ],
    },
    {
      code: "class A { 'foo'() {} 'foo'() {} }",
      errors: [
        { line: 1, column: 22, messageId: 'unexpected', data: { name: 'foo' } },
      ],
    },
    {
      code: 'class A { 10() {} 1e1() {} }',
      errors: [
        { line: 1, column: 19, messageId: 'unexpected', data: { name: '10' } },
      ],
    },
    {
      code: 'class A { foo() {} foo() {} foo() {} }',
      errors: [
        { line: 1, column: 20, messageId: 'unexpected', data: { name: 'foo' } },
        { line: 1, column: 29, messageId: 'unexpected', data: { name: 'foo' } },
      ],
    },
    {
      code: 'class A { static foo() {} static foo() {} }',
      errors: [
        { line: 1, column: 27, messageId: 'unexpected', data: { name: 'foo' } },
      ],
    },
    {
      code: 'class A { foo() {} get foo() {} }',
      errors: [
        { line: 1, column: 20, messageId: 'unexpected', data: { name: 'foo' } },
      ],
    },
    {
      code: 'class A { set foo(value) {} foo() {} }',
      errors: [
        { line: 1, column: 29, messageId: 'unexpected', data: { name: 'foo' } },
      ],
    },
  ],
});