From 6a86e5018a3733049c09261bcabae422fbea893d Mon Sep 17 00:00:00 2001
From: Milos Djermanovic <milos.djermanovic@gmail.com>
Date: Sat, 8 May 2021 02:37:10 +0200
Subject: [PATCH] Chore: remove loose-parser tests (fixes #14315) (#14569)

---
 package.json                    |   1 -
 tests/lib/rules/no-redeclare.js | 108 --------------------------------
 tests/tools/loose-parser.js     |  30 ---------
 3 files changed, 139 deletions(-)
 delete mode 100644 tests/tools/loose-parser.js

diff --git a/package.json b/package.json
index 4f87ef6403b..72070e2a0f5 100644
--- a/package.json
+++ b/package.json
@@ -84,7 +84,6 @@
   "devDependencies": {
     "@babel/core": "^7.4.3",
     "@babel/preset-env": "^7.4.3",
-    "acorn": "^7.2.0",
     "babel-loader": "^8.0.5",
     "chai": "^4.0.1",
     "cheerio": "^0.22.0",
diff --git a/tests/lib/rules/no-redeclare.js b/tests/lib/rules/no-redeclare.js
index f6293b7e152..f89d6853fa3 100644
--- a/tests/lib/rules/no-redeclare.js
+++ b/tests/lib/rules/no-redeclare.js
@@ -9,7 +9,6 @@
 // Requirements
 //------------------------------------------------------------------------------
 
-const path = require("path");
 const rule = require("../../../lib/rules/no-redeclare");
 const { RuleTester } = require("../../../lib/rule-tester");
 
@@ -17,7 +16,6 @@ const { RuleTester } = require("../../../lib/rule-tester");
 // Tests
 //------------------------------------------------------------------------------
 
-const looseParserPath = path.resolve(__dirname, "../../tools/loose-parser.js");
 const ruleTester = new RuleTester();
 
 ruleTester.run("no-redeclare", rule, {
@@ -205,112 +203,6 @@ ruleTester.run("no-redeclare", rule, {
             ]
         },
 
-        // let/const
-        {
-            code: "let a; let a;",
-            parser: looseParserPath,
-            parserOptions: { ecmaVersion: 2015 },
-            errors: [
-                { message: "'a' is already defined.", type: "Identifier" }
-            ]
-        },
-        {
-            code: "let a; let a;",
-            parser: looseParserPath,
-            parserOptions: { ecmaVersion: 2015, sourceType: "module" },
-            errors: [
-                { message: "'a' is already defined.", type: "Identifier" }
-            ]
-        },
-        {
-            code: "let a; let a;",
-            parser: looseParserPath,
-            parserOptions: { ecmaVersion: 2015, ecmaFeatures: { globalReturn: true } },
-            errors: [
-                { message: "'a' is already defined.", type: "Identifier" }
-            ]
-        },
-        {
-            code: "let a; const a = 0;",
-            parser: looseParserPath,
-            parserOptions: { ecmaVersion: 2015 },
-            errors: [
-                { message: "'a' is already defined.", type: "Identifier" }
-            ]
-        },
-        {
-            code: "const a = 0; const a = 0;",
-            parser: looseParserPath,
-            parserOptions: { ecmaVersion: 2015 },
-            errors: [
-                { message: "'a' is already defined.", type: "Identifier" }
-            ]
-        },
-        {
-            code: "if (test) { let a; let a; }",
-            parser: looseParserPath,
-            parserOptions: { ecmaVersion: 2015 },
-            errors: [
-                { message: "'a' is already defined.", type: "Identifier" }
-            ]
-        },
-        {
-            code: "switch (test) { case 0: let a; let a; }",
-            parser: looseParserPath,
-            parserOptions: { ecmaVersion: 2015 },
-            errors: [
-                { message: "'a' is already defined.", type: "Identifier" }
-            ]
-        },
-        {
-            code: "for (let a, a;;);",
-            parser: looseParserPath,
-            parserOptions: { ecmaVersion: 2015 },
-            errors: [
-                { message: "'a' is already defined.", type: "Identifier" }
-            ]
-        },
-        {
-            code: "for (let [a, a] in xs);",
-            parser: looseParserPath,
-            parserOptions: { ecmaVersion: 2015 },
-            errors: [
-                { message: "'a' is already defined.", type: "Identifier" }
-            ]
-        },
-        {
-            code: "for (let [a, a] of xs);",
-            parser: looseParserPath,
-            parserOptions: { ecmaVersion: 2015 },
-            errors: [
-                { message: "'a' is already defined.", type: "Identifier" }
-            ]
-        },
-        {
-            code: "function f() { let a; let a; }",
-            parser: looseParserPath,
-            parserOptions: { ecmaVersion: 2015 },
-            errors: [
-                { message: "'a' is already defined.", type: "Identifier" }
-            ]
-        },
-        {
-            code: "function f(a) { let a; }",
-            parser: looseParserPath,
-            parserOptions: { ecmaVersion: 2015 },
-            errors: [
-                { message: "'a' is already defined.", type: "Identifier" }
-            ]
-        },
-        {
-            code: "function f() { if (test) { let a; let a; } }",
-            parser: looseParserPath,
-            parserOptions: { ecmaVersion: 2015 },
-            errors: [
-                { message: "'a' is already defined.", type: "Identifier" }
-            ]
-        },
-
         // Comments and built-ins.
         {
             code: "/*globals Array */",
diff --git a/tests/tools/loose-parser.js b/tests/tools/loose-parser.js
deleted file mode 100644
index 98e97cc3687..00000000000
--- a/tests/tools/loose-parser.js
+++ /dev/null
@@ -1,30 +0,0 @@
-/**
- * @fileoverview Define a custom parser to ignore recoverable syntax errors.
- * @author Toru Nagashima <https://github.com/mysticatea>
- *
- * no-redeclare rule uses this parser to check redeclarations.
- */
-"use strict";
-
-const acorn = require("acorn");
-const espree = require("espree/lib/espree");
-
-/**
- * Define the parser which ignores recoverable errors.
- * @returns {(parser:acorn.Parser) => acorn.Parser} The function that defines loose parser.
- */
-function loose() {
-    return Parser => class LooseParser extends Parser {
-        raiseRecoverable() { // eslint-disable-line class-methods-use-this
-            // ignore
-        }
-    };
-}
-
-const LooseEspree = acorn.Parser.extend(espree(), loose());
-
-module.exports = {
-    parse(code, options) {
-        return new LooseEspree(options, code).parse();
-    }
-};