eslint/tests/lib/rules/global-require.js

   1 /**
   2  * @fileoverview Tests for global-require
   3  * @author Jamund Ferguson
   4  */
   5
   6 "use strict";
   7
   8 //------------------------------------------------------------------------------
   9 // Requirements
  10 //------------------------------------------------------------------------------
  11
  12 const rule = require("../../../lib/rules/global-require"),
  13     { RuleTester } = require("../../../lib/rule-tester");
  14
  15 //------------------------------------------------------------------------------
  16 // Tests
  17 //------------------------------------------------------------------------------
  18 const ruleTester = new RuleTester();
  19
  20 const valid = [
  21     { code: "var x = require('y');" },
  22     { code: "if (x) { x.require('y'); }" },
  23     { code: "var x;\nx = require('y');" },
  24     { code: "var x = 1, y = require('y');" },
  25     { code: "var x = require('y'), y = require('y'), z = require('z');" },
  26     { code: "var x = require('y').foo;" },
  27     { code: "require('y').foo();" },
  28     { code: "require('y');" },
  29     { code: "function x(){}\n\n\nx();\n\n\nif (x > y) {\n\tdoSomething()\n\n}\n\nvar x = require('y').foo;" },
  30     { code: "var logger = require(DEBUG ? 'dev-logger' : 'logger');" },
  31     { code: "var logger = DEBUG ? require('dev-logger') : require('logger');" },
  32     { code: "function localScopedRequire(require) { require('y'); }" },
  33     { code: "var someFunc = require('./someFunc'); someFunc(function(require) { return('bananas'); });" }
  34 ];
  35
  36 const error = { messageId: "unexpected", type: "CallExpression" };
  37
  38 const invalid = [
  39
  40     // block statements
  41     {
  42         code: "if (process.env.NODE_ENV === 'DEVELOPMENT') {\n\trequire('debug');\n}",
  43         errors: [error]
  44     },
  45     {
  46         code: "var x; if (y) { x = require('debug'); }",
  47         errors: [error]
  48     },
  49     {
  50         code: "var x; if (y) { x = require('debug').baz; }",
  51         errors: [error]
  52     },
  53     {
  54         code: "function x() { require('y') }",
  55         errors: [error]
  56     },
  57     {
  58         code: "try { require('x'); } catch (e) { console.log(e); }",
  59         errors: [error]
  60     },
  61
  62     // non-block statements
  63     {
  64         code: "var getModule = x => require(x);",
  65         parserOptions: { ecmaVersion: 6 },
  66         errors: [error]
  67     },
  68     {
  69         code: "var x = (x => require(x))('weird')",
  70         parserOptions: { ecmaVersion: 6 },
  71         errors: [error]
  72     },
  73     {
  74         code: "switch(x) { case '1': require('1'); break; }",
  75         errors: [error]
  76     }
  77 ];
  78
  79 ruleTester.run("global-require", rule, {
  80     valid,
  81     invalid
  82 });