test: use ecmaVersion: "latest" in tests (#1290)

Author: ota-meshi

package.json

@@ -14,36 +14,37 @@
     "test": "pnpm --recursive run test"
   },
   "devDependencies": {
-    "@changesets/changelog-github": "^0.5.0",
-    "@changesets/cli": "^2.27.10",
-    "@changesets/get-release-plan": "^4.0.5",
-    "@eslint-community/eslint-plugin-eslint-comments": "^4.4.1",
+    "@changesets/changelog-github": "^0.5.1",
+    "@changesets/cli": "^2.29.5",
+    "@changesets/get-release-plan": "^4.0.13",
+    "@eslint-community/eslint-plugin-eslint-comments": "^4.5.0",
     "@ota-meshi/eslint-plugin": "^0.17.6",
     "@types/eslint": "^9.6.1",
-    "@typescript-eslint/eslint-plugin": "^8.16.0",
-    "@typescript-eslint/parser": "^8.16.0",
-    "c8": "^10.1.2",
+    "@typescript-eslint/eslint-plugin": "^8.39.0",
+    "@typescript-eslint/parser": "^8.39.0",
+    "c8": "^10.1.3",
     "env-cmd": "^10.1.0",
     "eslint": "~9.32.0",
-    "eslint-config-prettier": "^10.0.0",
+    "eslint-config-prettier": "^10.1.8",
     "eslint-formatter-friendly": "^7.0.0",
-    "eslint-plugin-eslint-plugin": "^6.3.2",
-    "eslint-plugin-jsdoc": "^51.0.0",
-    "eslint-plugin-json-schema-validator": "^5.1.3",
-    "eslint-plugin-jsonc": "^2.18.2",
+    "eslint-plugin-eslint-plugin": "^6.5.0",
+    "eslint-plugin-jsdoc": "^51.4.1",
+    "eslint-plugin-json-schema-validator": "^5.4.1",
+    "eslint-plugin-jsonc": "^2.20.1",
     "eslint-plugin-markdown": "^5.1.0",
-    "eslint-plugin-mdx": "^3.1.5",
-    "eslint-plugin-n": "^17.14.0",
-    "eslint-plugin-node-dependencies": "^1.0.0",
-    "eslint-plugin-prettier": "^5.2.1",
-    "eslint-plugin-regexp": "^2.7.0",
-    "eslint-plugin-yml": "^1.15.0",
-    "npm-run-all2": "^8.0.0",
-    "prettier": "^3.4.1",
-    "prettier-plugin-svelte": "^3.3.2",
+    "eslint-plugin-mdx": "^3.6.2",
+    "eslint-plugin-n": "^17.21.3",
+    "eslint-plugin-node-dependencies": "^1.1.2",
+    "eslint-plugin-prettier": "^5.5.4",
+    "eslint-plugin-regexp": "^2.9.1",
+    "eslint-plugin-yml": "^1.18.0",
+    "npm-run-all2": "^8.0.4",
+    "prettier": "^3.6.2",
+    "prettier-plugin-svelte": "^3.4.0",
     "rimraf": "^6.0.1",
-    "typescript": "~5.8.0",
-    "typescript-eslint": "^8.16.0"
+    "typescript": "~5.8.3",
+    "typescript-eslint": "^8.39.0",
+    "undici": "^6.21.2"
   },
   "publishConfig": {
     "access": "public"

packages/eslint-plugin-svelte/package.json

@@ -68,39 +68,39 @@
     "svelte-eslint-parser": "^1.3.0"
   },
   "devDependencies": {
-    "@babel/core": "^7.26.0",
-    "@babel/eslint-parser": "^7.25.9",
-    "@babel/plugin-proposal-function-bind": "^7.25.9",
-    "@eslint-community/eslint-plugin-eslint-comments": "^4.4.1",
+    "@babel/core": "^7.28.0",
+    "@babel/eslint-parser": "^7.28.0",
+    "@babel/plugin-proposal-function-bind": "^7.27.1",
+    "@eslint-community/eslint-plugin-eslint-comments": "^4.5.0",
     "@types/babel__core": "^7.20.5",
     "@types/eslint-utils": "^3.0.5",
     "@types/esutils": "^2.0.2",
     "@types/json-schema": "^7.0.15",
-    "@types/less": "^3.0.7",
+    "@types/less": "^3.0.8",
     "@types/mocha": "^10.0.10",
-    "@types/node": "^22.10.0",
+    "@types/node": "^22.17.0",
     "@types/postcss-safe-parser": "^5.0.4",
-    "@types/semver": "^7.5.8",
+    "@types/semver": "^7.7.0",
     "@types/stylus": "^0.48.43",
-    "acorn": "^8.14.0",
+    "acorn": "^8.15.0",
     "assert": "^2.1.0",
-    "esbuild": "^0.25.0",
-    "eslint-scope": "^8.2.0",
-    "eslint-typegen": "^2.0.0",
-    "eslint-visitor-keys": "^4.2.0",
-    "espree": "^10.3.0",
-    "less": "^4.2.1",
-    "mocha": "~11.7.0",
+    "esbuild": "^0.25.8",
+    "eslint-scope": "^8.4.0",
+    "eslint-typegen": "^2.3.0",
+    "eslint-visitor-keys": "^4.2.1",
+    "espree": "^10.4.0",
+    "less": "^4.4.0",
+    "mocha": "~11.7.1",
     "postcss-nested": "^7.0.2",
-    "postcss-selector-parser": "^7.0.0",
-    "sass": "^1.81.0",
+    "postcss-selector-parser": "^7.1.0",
+    "sass": "^1.90.0",
     "source-map-js": "^1.2.1",
     "stylus": "^0.64.0",
-    "svelte": "^5.30.1",
+    "svelte": "^5.38.0",
     "svelte-i18n": "^4.0.1",
-    "tsx": "^4.19.2",
+    "tsx": "^4.20.3",
     "type-coverage": "^2.29.7",
-    "yaml": "^2.6.1"
+    "yaml": "^2.8.1"
   },
   "publishConfig": {
     "access": "public"

packages/eslint-plugin-svelte/tests/src/integration/no-unused-vars.ts

@@ -8,7 +8,7 @@ describe('Integration test for no-unused-vars', () => {
 	const tester = new RuleTester({
 		languageOptions: {
 			parser: parser,
-			ecmaVersion: 2020,
+			ecmaVersion:"latest",
 			sourceType: 'module'
 		}
 	});

packages/eslint-plugin-svelte/tests/src/rules/@typescript-eslint/no-unnecessary-condition.ts

@@ -4,7 +4,7 @@ import { loadTestCases, RULES_PROJECT } from '../../../utils/utils.js';
 
 const tester = new RuleTester({
 	languageOptions: {
-		ecmaVersion: 2020,
+		ecmaVersion:"latest",
 		sourceType: 'module',
 		parserOptions: {
 			parser: {

packages/eslint-plugin-svelte/tests/src/rules/block-lang.ts

@@ -4,7 +4,7 @@ import { loadTestCases } from '../../utils/utils.js';
 
 const tester = new RuleTester({
 	languageOptions: {
-		ecmaVersion: 2020,
+		ecmaVersion:"latest",
 		sourceType: 'module'
 	}
 });

packages/eslint-plugin-svelte/tests/src/rules/button-has-type.ts

@@ -4,7 +4,7 @@ import { loadTestCases } from '../../utils/utils.js';
 
 const tester = new RuleTester({
 	languageOptions: {
-		ecmaVersion: 2020,
+		ecmaVersion:"latest",
 		sourceType: 'module'
 	}
 });

packages/eslint-plugin-svelte/tests/src/rules/comment-directive.ts

@@ -17,7 +17,7 @@ describe('comment-directive', () => {
 			baseConfig: {
 				languageOptions: {
 					parser: svelteParser,
-					ecmaVersion: 2020
+					ecmaVersion:"latest"
 				},
 				plugins: {
 					svelte: plugin
@@ -360,7 +360,7 @@ describe('comment-directive', () => {
 				baseConfig: {
 					languageOptions: {
 						parser: svelteParser,
-						ecmaVersion: 2020
+						ecmaVersion:"latest"
 					},
 					plugins: {
 						svelte: plugin

packages/eslint-plugin-svelte/tests/src/rules/consistent-selector-style.ts

@@ -4,7 +4,7 @@ import { loadTestCases } from '../../utils/utils';
 
 const tester = new RuleTester({
 	languageOptions: {
-		ecmaVersion: 2020,
+		ecmaVersion:"latest",
 		sourceType: 'module'
 	}
 });

packages/eslint-plugin-svelte/tests/src/rules/derived-has-same-inputs-outputs.ts

@@ -4,7 +4,7 @@ import { loadTestCases } from '../../utils/utils.js';
 
 const tester = new RuleTester({
 	languageOptions: {
-		ecmaVersion: 2020,
+		ecmaVersion:"latest",
 		sourceType: 'module'
 	}
 });

packages/eslint-plugin-svelte/tests/src/rules/experimental-require-slot-types.ts

@@ -4,7 +4,7 @@ import { loadTestCases } from '../../utils/utils.js';
 
 const tester = new RuleTester({
 	languageOptions: {
-		ecmaVersion: 2020,
+		ecmaVersion:"latest",
 		sourceType: 'module'
 	}
 });