typescript-eslint · aryaemami59 · Apr 24, 2025 · Apr 24, 2025 · Apr 24, 2025 · Apr 27, 2025
diff --git a/eslint.config.mjs b/eslint.config.mjs
@@ -390,6 +390,18 @@ export default tseslint.config(
     },
     settings: { vitest: { typecheck: true } },
   },
+  {
+    files: ['packages/*/tests/**/vitest-custom-matchers.d.ts'],
+    name: 'vitest-custom-matchers-declaration-files',
+    rules: {
+      '@typescript-eslint/no-empty-object-type': [
+        'error',
+        { allowInterfaces: 'with-single-extends' },
+      ],
+
+      '@typescript-eslint/no-explicit-any': 'off',
+    },
+  },
   // plugin rule tests
   {
     files: [

diff --git a/knip.ts b/knip.ts
@@ -96,6 +96,15 @@ export default {
     },
     'packages/type-utils': {
       ignore: ['tests/fixtures/**', 'typings/typescript.d.ts'],
+
+      vitest: {
+        config: ['vitest.config.mts'],
+        entry: [
+          'tests/**/*.{bench,test,test-d}.?(c|m)ts?(x)',
+          'tests/test-utils/custom-matchers/custom-matchers.ts',
+          'tests/test-utils/custom-matchers/vitest-custom-matchers.d.ts',
+        ],
+      },
     },
     'packages/typescript-estree': {
       entry: ['src/use-at-your-own-risk.ts'],

diff --git a/package.json b/package.json
@@ -82,7 +82,7 @@
     "@typescript-eslint/types": "workspace:^",
     "@typescript-eslint/typescript-estree": "workspace:^",
     "@typescript-eslint/utils": "workspace:^",
-    "@vitest/coverage-v8": "^3.1.1",
+    "@vitest/coverage-v8": "^3.1.2",
     "@vitest/eslint-plugin": "^1.1.43",
     "console-fail-test": "^0.5.0",
     "cross-fetch": "^4.0.0",
@@ -114,8 +114,8 @@
     "tsx": "*",
     "typescript": ">=4.8.4 <5.9.0",
     "typescript-eslint": "workspace:^",
-    "vite": "^6.3.3",
-    "vitest": "^3.1.1",
+    "vite": "^6.3.4",
+    "vitest": "^3.1.2",
     "yargs": "17.7.2"
   },
   "resolutions": {

diff --git a/packages/ast-spec/package.json b/packages/ast-spec/package.json
@@ -50,13 +50,13 @@
     "@babel/eslint-parser": "*",
     "@microsoft/api-extractor": "^7.47.11",
     "@typescript-eslint/typescript-estree": "workspace:*",
-    "@vitest/coverage-v8": "^3.1.1",
+    "@vitest/coverage-v8": "^3.1.2",
     "glob": "*",
     "jest-diff": "^29.7.0",
     "prettier": "^3.2.5",
     "pretty-format": "*",
     "rimraf": "*",
     "typescript": "*",
-    "vitest": "^3.1.1"
+    "vitest": "^3.1.2"
   }
 }
diff --git a/packages/eslint-plugin-internal/package.json b/packages/eslint-plugin-internal/package.json
@@ -31,8 +31,8 @@
     "prettier": "^3.2.5"
   },
   "devDependencies": {
-    "@vitest/coverage-v8": "^3.1.1",
+    "@vitest/coverage-v8": "^3.1.2",
     "rimraf": "*",
-    "vitest": "^3.1.1"
+    "vitest": "^3.1.2"
   }
 }
diff --git a/packages/eslint-plugin/package.json b/packages/eslint-plugin/package.json
@@ -77,7 +77,7 @@
     "@types/natural-compare": "*",
     "@typescript-eslint/rule-schema-to-typescript-types": "8.31.1",
     "@typescript-eslint/rule-tester": "8.31.1",
-    "@vitest/coverage-v8": "^3.1.1",
+    "@vitest/coverage-v8": "^3.1.2",
     "ajv": "^6.12.6",
     "cross-fetch": "*",
     "eslint": "*",
@@ -93,7 +93,7 @@
     "tsx": "*",
     "typescript": "*",
     "unist-util-visit": "^5.0.0",
-    "vitest": "^3.1.1"
+    "vitest": "^3.1.2"
   },
   "peerDependencies": {
     "@typescript-eslint/parser": "^8.0.0 || ^8.0.0-alpha.0",

diff --git a/packages/integration-tests/package.json b/packages/integration-tests/package.json
@@ -18,7 +18,7 @@
     "check-types": "npx nx typecheck"
   },
   "devDependencies": {
-    "@vitest/coverage-v8": "^3.1.1",
-    "vitest": "^3.1.1"
+    "@vitest/coverage-v8": "^3.1.2",
+    "vitest": "^3.1.2"
   }
 }
diff --git a/packages/parser/package.json b/packages/parser/package.json
@@ -59,12 +59,12 @@
     "debug": "^4.3.4"
   },
   "devDependencies": {
-    "@vitest/coverage-v8": "^3.1.1",
+    "@vitest/coverage-v8": "^3.1.2",
     "glob": "*",
     "prettier": "^3.2.5",
     "rimraf": "*",
     "typescript": "*",
-    "vitest": "^3.1.1"
+    "vitest": "^3.1.2"
   },
   "funding": {
     "type": "opencollective",

diff --git a/packages/rule-schema-to-typescript-types/package.json b/packages/rule-schema-to-typescript-types/package.json
@@ -37,9 +37,9 @@
     "prettier": "^3.2.5"
   },
   "devDependencies": {
-    "@vitest/coverage-v8": "^3.1.1",
+    "@vitest/coverage-v8": "^3.1.2",
     "typescript": "*",
-    "vitest": "^3.1.1"
+    "vitest": "^3.1.2"
   },
   "funding": {
     "type": "opencollective",

diff --git a/packages/rule-tester/package.json b/packages/rule-tester/package.json
@@ -61,16 +61,16 @@
   "devDependencies": {
     "@types/json-stable-stringify-without-jsonify": "^1.0.2",
     "@types/lodash.merge": "4.6.9",
-    "@vitest/coverage-v8": "^3.1.1",
-    "chai": "^4.4.1",
+    "@vitest/coverage-v8": "^3.1.2",
+    "chai": "^5.2.0",
     "eslint-visitor-keys": "^4.2.0",
     "espree": "^10.3.0",
     "esprima": "^4.0.1",
     "mocha": "^10.4.0",
     "sinon": "^16.1.3",
     "source-map-support": "^0.5.21",
     "typescript": "*",
-    "vitest": "^3.1.1"
+    "vitest": "^3.1.2"
   },
   "funding": {
     "type": "opencollective",

diff --git a/packages/scope-manager/package.json b/packages/scope-manager/package.json
@@ -52,12 +52,12 @@
   },
   "devDependencies": {
     "@typescript-eslint/typescript-estree": "8.31.1",
-    "@vitest/coverage-v8": "^3.1.1",
+    "@vitest/coverage-v8": "^3.1.2",
     "glob": "*",
     "prettier": "^3.2.5",
     "pretty-format": "*",
     "typescript": "*",
-    "vitest": "^3.1.1"
+    "vitest": "^3.1.2"
   },
   "funding": {
     "type": "opencollective",

diff --git a/packages/type-utils/package.json b/packages/type-utils/package.json
@@ -37,8 +37,7 @@
   ],
   "scripts": {
     "build": "tsc -b tsconfig.build.json",
-    "clean": "tsc -b tsconfig.build.json --clean",
-    "postclean": "rimraf dist/ coverage/",
+    "clean": "rimraf dist/ coverage/",
     "format": "prettier --write \"./**/*.{ts,mts,cts,tsx,js,mjs,cjs,jsx,json,md,css}\" --ignore-path ../../.prettierignore",
     "lint": "npx nx lint",
     "test": "vitest --run --config=$INIT_CWD/vitest.config.mts",
@@ -56,12 +55,13 @@
   },
   "devDependencies": {
     "@typescript-eslint/parser": "8.31.1",
-    "@vitest/coverage-v8": "^3.1.1",
+    "@vitest/coverage-v8": "^3.1.2",
     "ajv": "^6.12.6",
+    "eslint": "*",
     "prettier": "^3.2.5",
     "rimraf": "*",
     "typescript": "*",
-    "vitest": "^3.1.1"
+    "vitest": "^3.1.2"
   },
   "funding": {
     "type": "opencollective",

diff --git a/packages/type-utils/tests/TypeOrValueSpecifier.test.ts b/packages/type-utils/tests/TypeOrValueSpecifier.test.ts
@@ -58,15 +58,21 @@ describe('TypeOrValueSpecifier', () => {
       [{ from: 'file', name: ['MyType', 42] }],
       [{ from: 'file', name: ['MyType', 'MyType'] }],
       [{ from: 'file', name: [] }],
-      [{ from: 'file', path: './filename.js' }],
+      [{ from: 'file', path: `${ROOT_DIR}/filename.js` }],
       [{ from: 'file', name: 'MyType', path: 42 }],
-      [{ from: 'file', name: ['MyType', 'MyType'], path: './filename.js' }],
-      [{ from: 'file', name: [], path: './filename.js' }],
+      [
+        {
+          from: 'file',
+          name: ['MyType', 'MyType'],
+          path: `${ROOT_DIR}/filename.js`,
+        },
+      ],
+      [{ from: 'file', name: [], path: `${ROOT_DIR}/filename.js` }],
       [
         {
           from: 'file',
           name: ['MyType', 'myValue'],
-          path: ['./filename.js', './another-file.js'],
+          path: [`${ROOT_DIR}/filename.js`, `${ROOT_DIR}/another-file.js`],
         },
       ],
       [{ from: 'file', name: 'MyType', unrelatedProperty: '' }],
@@ -122,7 +128,7 @@ describe('TypeOrValueSpecifier', () => {
         {
           from: 'package',
           name: ['MyType', 'myValue'],
-          package: ['jquery', './another-file.js'],
+          package: ['jquery', `${ROOT_DIR}/another-file.js`],
         },
       ],
       [
@@ -293,14 +299,18 @@ describe('TypeOrValueSpecifier', () => {
       ],
       [
         'interface Foo {prop: string}; type Test = Foo;',
-        { from: 'file', name: 'Foo', path: 'tests/fixtures/wrong-file.ts' },
+        {
+          from: 'file',
+          name: 'Foo',
+          path: `${ROOT_DIR}/tests/fixtures/wrong-file.ts`,
+        },
       ],
       [
         'interface Foo {prop: string}; type Test = Foo;',
         {
           from: 'file',
           name: ['Foo', 'Bar'],
-          path: 'tests/fixtures/wrong-file.ts',
+          path: `${ROOT_DIR}/tests/fixtures/wrong-file.ts`,
         },
       ],
     ] as const satisfies [string, TypeOrValueSpecifier][])(

diff --git a/packages/type-utils/tests/containsAllTypesByName.test.ts b/packages/type-utils/tests/containsAllTypesByName.test.ts
@@ -6,7 +6,6 @@ import { parseForESLint } from '@typescript-eslint/parser';
 import path from 'node:path';
 
 import { containsAllTypesByName } from '../src';
-import { expectToHaveParserServices } from './test-utils/expectToHaveParserServices';
 
 describe(containsAllTypesByName, () => {
   const rootDir = path.join(__dirname, 'fixtures');
@@ -18,7 +17,7 @@ describe(containsAllTypesByName, () => {
       project: './tsconfig.json',
       tsconfigRootDir: rootDir,
     });
-    expectToHaveParserServices(services);
+    assert.toHaveParserServices(services);
     const declaration = ast.body[0] as TSESTree.TSTypeAliasDeclaration;
     return services.getTypeAtLocation(declaration.id);
   }

diff --git a/packages/type-utils/tests/discriminateAnyType.test.ts b/packages/type-utils/tests/discriminateAnyType.test.ts
@@ -5,7 +5,6 @@ import { parseForESLint } from '@typescript-eslint/parser';
 import path from 'node:path';
 
 import { AnyType, discriminateAnyType } from '../src';
-import { expectToHaveParserServices } from './test-utils/expectToHaveParserServices';
 
 type GetNode = (ast: TSESTree.Program) => TSESTree.Node;
 
@@ -25,7 +24,7 @@ describe(discriminateAnyType, () => {
       project: './tsconfig.json',
       tsconfigRootDir: rootDir,
     });
-    expectToHaveParserServices(services);
+    assert.toHaveParserServices(services);
     const node = getNode(ast);
     const type = services.getTypeAtLocation(getNode(ast));
     return {

diff --git a/packages/type-utils/tests/getTypeName.test.ts b/packages/type-utils/tests/getTypeName.test.ts
@@ -6,7 +6,6 @@ import { parseForESLint } from '@typescript-eslint/parser';
 import path from 'node:path';
 
 import { getTypeName } from '../src';
-import { expectToHaveParserServices } from './test-utils/expectToHaveParserServices';
 
 describe(getTypeName, () => {
   function getTypes(code: string): { checker: ts.TypeChecker; type: ts.Type } {
@@ -18,7 +17,7 @@ describe(getTypeName, () => {
       project: './tsconfig.json',
       tsconfigRootDir: rootDir,
     });
-    expectToHaveParserServices(services);
+    assert.toHaveParserServices(services);
     const checker = services.program.getTypeChecker();
     const declaration = ast.body[0] as TSESTree.TSTypeAliasDeclaration;
 

diff --git a/packages/type-utils/tests/isSymbolFromDefaultLibrary.test.ts b/packages/type-utils/tests/isSymbolFromDefaultLibrary.test.ts
@@ -6,7 +6,6 @@ import { parseForESLint } from '@typescript-eslint/parser';
 import path from 'node:path';
 
 import { isSymbolFromDefaultLibrary } from '../src';
-import { expectToHaveParserServices } from './test-utils/expectToHaveParserServices';
 
 describe(isSymbolFromDefaultLibrary, () => {
   const rootDir = path.join(__dirname, 'fixtures');
@@ -21,7 +20,7 @@ describe(isSymbolFromDefaultLibrary, () => {
       project: './tsconfig.json',
       tsconfigRootDir: rootDir,
     });
-    expectToHaveParserServices(services);
+    assert.toHaveParserServices(services);
     const declaration = ast.body[0] as TSESTree.TSTypeAliasDeclaration;
     const type = services.getTypeAtLocation(declaration.id);
     return { program: services.program, symbol: type.getSymbol() };