no-mocks-import.test.js

'use strict';

const rule = require('../no-mocks-import.js');
const { RuleTester } = require('eslint');
const ruleTester = new RuleTester();
const message = `Mocks should not be manually imported from a __mocks__ directory. Instead use jest.mock and import from the original module path.`;

ruleTester.run('no-mocks-import', rule, {
  valid: [
    {
      code: 'import something from "something"',
      parserOptions: { sourceType: 'module' },
    },
    'require("somethingElse")',
    'require("./__mocks__.js")',
    'require("./__mocks__x")',
    'require("./__mocks__x/x")',
    'require("./x__mocks__")',
    'require("./x__mocks__/x")',
    'require()',
    'var path = "./__mocks__.js"; require(path)',
    'entirelyDifferent(fn)',
  ],
  invalid: [
    {
      code: 'require("./__mocks__")',
      errors: [
        {
          endColumn: 22,
          column: 9,
          message,
        },
      ],
    },
    {
      code: 'require("./__mocks__/")',
      errors: [
        {
          endColumn: 23,
          column: 9,
          message,
        },
      ],
    },
    {
      code: 'require("./__mocks__/index")',
      errors: [
        {
          endColumn: 28,
          column: 9,
          message,
        },
      ],
    },
    {
      code: 'require("__mocks__")',
      errors: [
        {
          endColumn: 20,
          column: 9,
          message,
        },
      ],
    },
    {
      code: 'require("__mocks__/")',
      errors: [
        {
          endColumn: 21,
          column: 9,
          message,
        },
      ],
    },
    {
      code: 'require("__mocks__/index")',
      errors: [
        {
          endColumn: 26,
          column: 9,
          message,
        },
      ],
    },
    {
      code: 'import thing from "./__mocks__/index"',
      parserOptions: { sourceType: 'module' },
      errors: [
        {
          endColumn: 38,
          column: 1,
          message,
        },
      ],
    },
  ],
});