Add additional ESM rules

.eslintrc

@@ -1,6 +1,9 @@
 {
 	"root": true,
 	"extends": ["./index.js", "eslint-config-prettier"],
+	"parserOptions": {
+		"sourceType": "commonjs"
+	},
 	"plugins": [
 		"eslint-plugin-prettier",
 		"eslint-plugin-unicorn",

index.js

@@ -6,7 +6,8 @@ module.exports = {
 		es2022: true
 	},
 	parserOptions: {
-		ecmaVersion: 2022
+		ecmaVersion: 2022,
+		sourceType: 'module'
 	},
 	plugins: [
 		'eslint-plugin-promise',
@@ -15,7 +16,6 @@ module.exports = {
 		'eslint-plugin-jsdoc',
 		'eslint-plugin-import'
 	],
-
 	rules: {
 		'n/no-sync': 1,
 		'n/no-restricted-require': 0,

test/.eslintrc

@@ -1,10 +1,9 @@
 {
 	"extends": ["../tests.js"],
+	"plugins": ["eslint-plugin-unicorn", "eslint-plugin-import"],
 	"parserOptions": {
-		"ecmaVersion": 2022,
 		"sourceType": "module"
 	},
-	"plugins": ["eslint-plugin-unicorn", "eslint-plugin-import"],
 	"rules": {
 		"unicorn/prefer-module": 2,
 		"import/no-commonjs": 2

test/fixtures/default.config.js

@@ -2,7 +2,7 @@ let a = 1;
 const b = 2;
 b = 3;
 
-function foo () {
+function foo1 () {
 	var bar = {
 		bad: () => {
 			var a = `a b c ${d} e`;
@@ -15,7 +15,7 @@ function foo () {
 	bar.catch = function () {};
 }
 
-var foo = {};
+var foo2 = {};
 var bar = {};
 
 fn(_.extend(foo, bar));
@@ -27,4 +27,4 @@ var p = new Promise(function ( r1, r2 ) {})
 
 throw Error();
 
-var [foo, ... bar] = [1, 2];
+var [foo3, ... bar] = [1, 2];

test/index.js

@@ -15,7 +15,7 @@ async function runEslint(file, config) {
 
 	return results.messages.map((error) => {
 		if (error.ruleId === null && error.fatal === true) {
-			return 'parsing error';
+			return error.message ?? 'Parsing error';
 		}
 		return error.ruleId;
 	});