eslint/tests/lib/rules/guard-for-in.js

   1 /**
   2  * @fileoverview Tests for guard-for-in rule.
   3  * @author Nicholas C. Zakas
   4  */
   5
   6 "use strict";
   7
   8 //------------------------------------------------------------------------------
   9 // Requirements
  10 //------------------------------------------------------------------------------
  11
  12 const rule = require("../../../lib/rules/guard-for-in"),
  13     { RuleTester } = require("../../../lib/rule-tester");
  14
  15 //------------------------------------------------------------------------------
  16 // Tests
  17 //------------------------------------------------------------------------------
  18
  19 const ruleTester = new RuleTester();
  20 const error = { messageId: "wrap", type: "ForInStatement" };
  21
  22 ruleTester.run("guard-for-in", rule, {
  23     valid: [
  24         "for (var x in o);",
  25         "for (var x in o) {}",
  26         "for (var x in o) if (x) f();",
  27         "for (var x in o) { if (x) { f(); } }",
  28         "for (var x in o) { if (x) continue; f(); }",
  29         "for (var x in o) { if (x) { continue; } f(); }"
  30     ],
  31     invalid: [
  32         { code: "for (var x in o) { if (x) { f(); continue; } g(); }", errors: [error] },
  33         { code: "for (var x in o) { if (x) { continue; f(); } g(); }", errors: [error] },
  34         { code: "for (var x in o) { if (x) { f(); } g(); }", errors: [error] },
  35         { code: "for (var x in o) { if (x) f(); g(); }", errors: [error] },
  36         { code: "for (var x in o) { foo() }", errors: [error] },
  37         { code: "for (var x in o) foo();", errors: [error] }
  38     ]
  39 });