safe-string-coercion-test.internal.js — react Source File

Source Code

/**
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @emails react-core
 */

'use strict';

const rule = require('../safe-string-coercion');
const {RuleTester} = require('eslint');

RuleTester.setDefaultConfig({
  parser: require.resolve('babel-eslint'),
  parserOptions: {
    ecmaVersion: 6,
    sourceType: 'module',
  },
});

const ruleTester = new RuleTester();

const missingDevCheckMessage =
  'Missing DEV check before this string coercion.' +
  ' Check should be in this format:\n' +
  '  if (__DEV__) {\n' +
  '    checkXxxxxStringCoercion(value);\n' +
  '  }';
const prevStatementNotDevCheckMessage =
  'The statement before this coercion must be a DEV check in this format:\n' +
  '  if (__DEV__) {\n' +
  '    checkXxxxxStringCoercion(value);\n' +
  '  }';
const message =
  "Using `'' + value` or `value + ''` is fast to coerce strings, but may throw." +
  ' For prod code, add a DEV check from shared/CheckStringCoercion immediately' +
  ' before this coercion.' +
  ' For non-prod code and prod error handling, use `String(value)` instead.';

ruleTester.run('eslint-rules/safe-string-coercion', rule, {
  valid: [
    {
      code: 'String(obj)',
      options: [{isProductionUserAppCode: false}],
    },
    'String(obj)',
    "'a' + obj",
    `
      function getValueForAttribute(
        node,
        name,
        expected
      ) {
        if (__DEV__) {
          var value = node.getAttribute(name);
          if (__DEV__) {
            checkAttributeStringCoercion(expected, name);
          }
// ... (228 more lines)