eslint/tests/lib/rules/no-new-func.js

   1 /**
   2  * @fileoverview Tests for no-new-func rule.
   3  * @author Ilya Volodin
   4  */
   5
   6 "use strict";
   7
   8 //------------------------------------------------------------------------------
   9 // Requirements
  10 //------------------------------------------------------------------------------
  11
  12 const rule = require("../../../lib/rules/no-new-func"),
  13     { RuleTester } = require("../../../lib/rule-tester");
  14
  15 //------------------------------------------------------------------------------
  16 // Tests
  17 //------------------------------------------------------------------------------
  18
  19 const ruleTester = new RuleTester();
  20
  21 ruleTester.run("no-new-func", rule, {
  22     valid: [
  23         "var a = new _function(\"b\", \"c\", \"return b+c\");",
  24         "var a = _function(\"b\", \"c\", \"return b+c\");",
  25         {
  26             code: "class Function {}; new Function()",
  27             parserOptions: {
  28                 ecmaVersion: 2015
  29             }
  30         },
  31         {
  32             code: "const fn = () => { class Function {}; new Function() }",
  33             parserOptions: {
  34                 ecmaVersion: 2015
  35             }
  36         },
  37         "function Function() {}; Function()",
  38         "var fn = function () { function Function() {}; Function() }",
  39         "var x = function Function() { Function(); }",
  40         "call(Function)",
  41         "new Class(Function)"
  42     ],
  43     invalid: [
  44         {
  45             code: "var a = new Function(\"b\", \"c\", \"return b+c\");",
  46             errors: [{
  47                 messageId: "noFunctionConstructor",
  48                 type: "NewExpression"
  49             }]
  50         },
  51         {
  52             code: "var a = Function(\"b\", \"c\", \"return b+c\");",
  53             errors: [{
  54                 messageId: "noFunctionConstructor",
  55                 type: "CallExpression"
  56             }]
  57         },
  58         {
  59             code: "const fn = () => { class Function {} }; new Function('', '')",
  60             parserOptions: {
  61                 ecmaVersion: 2015
  62             },
  63             errors: [{
  64                 messageId: "noFunctionConstructor",
  65                 type: "NewExpression"
  66             }]
  67         },
  68         {
  69             code: "var fn = function () { function Function() {} }; Function('', '')",
  70             errors: [{
  71                 messageId: "noFunctionConstructor",
  72                 type: "CallExpression"
  73             }]
  74         }
  75     ]
  76 });