Replace ESLint with Biome for linting and formatting, update TypeScript configuration to target ESNext, and refactor code to use type imports. Add new biome.json configuration file and adjust test cases for error handling.

.eslintrc.js

@@ -1,31 +0,0 @@
-module.exports = {
-  root: true,
-  env: {
-    node: true,
-    es2020: true,
-  },
-  extends: [
-    'eslint:recommended',
-    '@typescript-eslint/recommended',
-    'prettier',
-  ],
-  parser: '@typescript-eslint/parser',
-  parserOptions: {
-    ecmaVersion: 2020,
-    sourceType: 'module',
-    project: './tsconfig.json',
-  },
-  plugins: ['@typescript-eslint', 'prettier'],
-  rules: {
-    'prettier/prettier': 'error',
-    '@typescript-eslint/no-unused-vars': ['error', { argsIgnorePattern: '^_' }],
-    '@typescript-eslint/no-explicit-any': 'warn',
-    '@typescript-eslint/explicit-function-return-type': 'off',
-    '@typescript-eslint/explicit-module-boundary-types': 'off',
-    '@typescript-eslint/no-non-null-assertion': 'warn',
-    'no-console': 'warn',
-    'prefer-const': 'error',
-    'no-var': 'error',
-  },
-  ignorePatterns: ['dist/', 'node_modules/', 'coverage/'],
-};

biome.json

@@ -0,0 +1,44 @@
+{
+  "$schema": "https://biomejs.dev/schemas/2.2.4/schema.json",
+  "vcs": {
+    "enabled": true,
+    "clientKind": "git",
+    "useIgnoreFile": true
+  },
+  "files": {
+    "ignoreUnknown": false,
+    "includes": ["src/**/*.ts", "test/**/*.ts"]
+  },
+  "formatter": {
+    "enabled": true,
+    "formatWithErrors": false,
+    "indentStyle": "space",
+    "indentWidth": 2,
+    "lineWidth": 100,
+    "lineEnding": "lf"
+  },
+  "linter": {
+    "enabled": true,
+    "rules": {
+      "recommended": true,
+      "correctness": {
+        "noUnusedVariables": "off",
+        "noUnusedFunctionParameters": "off"
+      },
+      "style": {
+        "useConst": "error"
+      },
+      "suspicious": {
+        "noConsole": "warn",
+        "noVar": "error"
+      }
+    }
+  },
+  "javascript": {
+    "formatter": {
+      "quoteStyle": "double",
+      "semicolons": "always",
+      "trailingCommas": "es5"
+    }
+  }
+}

package.json

@@ -35,8 +35,8 @@
     "test:coverage": "bun test --coverage",
     "test:watch": "bun test --watch",
     "test:ci": "bun test --reporter=verbose",
-    "lint": "eslint src/**/*.ts test/**/*.ts --ext .ts",
+    "lint": "biome lint src/ test/",
-    "lint:fix": "eslint src/**/*.ts test/**/*.ts --ext .ts --fix",
+    "lint:fix": "biome lint --write src/ test/",
     "type-check": "tsc --noEmit",
     "format": "prettier --write \"src/**/*.ts\" \"test/**/*.ts\" \"*.{json,md,yml,yaml}\"",
     "format:check": "prettier --check \"src/**/*.ts\" \"test/**/*.ts\" \"*.{json,md,yml,yaml}\"",
@@ -62,18 +62,14 @@
     "prettier": "^3.0.0"
   },
   "devDependencies": {
+    "@biomejs/biome": "^2.2.4",
     "@types/bun": "latest",
     "@types/node": "^20.0.0",
-    "@typescript-eslint/eslint-plugin": "^6.0.0",
-    "@typescript-eslint/parser": "^6.0.0",
-    "eslint": "^8.0.0",
-    "eslint-config-prettier": "^9.0.0",
-    "eslint-plugin-prettier": "^5.0.0",
     "prettier": "^3.0.0",
     "typescript": "^5.0.0"
   },
   "dependencies": {
-    "js-yaml": "^4.1.0",
+    "@types/js-yaml": "^4.0.0",
-    "@types/js-yaml": "^4.0.0"
+    "js-yaml": "^4.1.0"
   }
 }

src/extensions/index.ts

@@ -18,13 +18,13 @@ import {
   TagKeys,
   ExternalDocsKeys,
   WebhookKeys,
-  OAuthFlowKeys,
+  type OAuthFlowKeys,
-  ContactKeys,
+  type ContactKeys,
-  LicenseKeys,
+  type LicenseKeys,
-  ComponentsKeys,
+  type ComponentsKeys,
-  ServerVariableKeys,
+  type ServerVariableKeys,
 } from '../keys.js';
-import { getVendorExtensions as loadVendorExtensions, VendorModule } from './vendor-loader.js';
+import { getVendorExtensions as loadVendorExtensions, type VendorModule } from './vendor-loader.js';
 
 export interface VendorExtensions {
   [context: string]: (
@@ -55,38 +55,38 @@ export function defineConfig(config: VendorModule): VendorModule {
 }
 
 // Type definitions with hover documentation
-export type TopLevelKeys = typeof RootKeys[number];
+export type TopLevelKeysType = typeof RootKeys[number];
-export type InfoKeys = typeof InfoKeys[number];
+export type InfoKeysType = typeof InfoKeys[number];
-export type OperationKeys = typeof OperationKeys[number];
+export type OperationKeysType = typeof OperationKeys[number];
-export type ParameterKeys = typeof ParameterKeys[number];
+export type ParameterKeysType = typeof ParameterKeys[number];
-export type SchemaKeys = typeof SchemaKeys[number];
+export type SchemaKeysType = typeof SchemaKeys[number];
-export type ResponseKeys = typeof ResponseKeys[number];
+export type ResponseKeysType = typeof ResponseKeys[number];
-export type SecuritySchemeKeys = typeof SecuritySchemeKeys[number];
+export type SecuritySchemeKeysType = typeof SecuritySchemeKeys[number];
-export type ServerKeys = typeof ServerKeys[number];
+export type ServerKeysType = typeof ServerKeys[number];
-export type TagKeys = typeof TagKeys[number];
+export type TagKeysType = typeof TagKeys[number];
-export type ExternalDocsKeys = typeof ExternalDocsKeys[number];
+export type ExternalDocsKeysType = typeof ExternalDocsKeys[number];
-export type WebhookKeys = typeof WebhookKeys[number];
+export type WebhookKeysType = typeof WebhookKeys[number];
-export type OAuthFlowKeys = typeof OAuthFlowKeys[number];
+export type OAuthFlowKeysType = typeof OAuthFlowKeys[number];
-export type ContactKeys = typeof ContactKeys[number];
+export type ContactKeysType = typeof ContactKeys[number];
-export type LicenseKeys = typeof LicenseKeys[number];
+export type LicenseKeysType = typeof LicenseKeys[number];
-export type ComponentsKeys = typeof ComponentsKeys[number];
+export type ComponentsKeysType = typeof ComponentsKeys[number];
-export type ServerVariableKeys = typeof ServerVariableKeys[number];
+export type ServerVariableKeysType = typeof ServerVariableKeys[number];
 
 // Context-specific key types for better IntelliSense
 export interface ContextKeys {
-  'top-level': TopLevelKeys;
+  'top-level': TopLevelKeysType;
-  'info': InfoKeys;
+  'info': InfoKeysType;
-  'operation': OperationKeys;
+  'operation': OperationKeysType;
-  'parameter': ParameterKeys;
+  'parameter': ParameterKeysType;
-  'schema': SchemaKeys;
+  'schema': SchemaKeysType;
-  'response': ResponseKeys;
+  'response': ResponseKeysType;
-  'securityScheme': SecuritySchemeKeys;
+  'securityScheme': SecuritySchemeKeysType;
-  'server': ServerKeys;
+  'server': ServerKeysType;
-  'tag': TagKeys;
+  'tag': TagKeysType;
-  'externalDocs': ExternalDocsKeys;
+  'externalDocs': ExternalDocsKeysType;
-  'webhook': WebhookKeys;
+  'webhook': WebhookKeysType;
-  'definitions': SchemaKeys; // Definitions use schema keys
+  'definitions': SchemaKeysType; // Definitions use schema keys
-  'securityDefinitions': SecuritySchemeKeys; // Security definitions use security scheme keys
+  'securityDefinitions': SecuritySchemeKeysType; // Security definitions use security scheme keys
 }
 
 // Helper function to get available keys for a context

src/extensions/vendor-loader.ts

@@ -4,7 +4,7 @@
  * Loads vendor extensions using static imports for ES module compatibility.
  */
 
-import { before, after, ContextKeys } from './index.js';
+import { before, after, type ContextKeys } from './index.js';
 
 // Import vendor extensions statically
 import { speakeasy } from './vendor/speakeasy.js';
@@ -68,7 +68,7 @@ export function getVendorExtensions(customVendorModules?: VendorModule[]): Recor
             
             // Check for collisions before adding extensions
             for (const [extensionKey, position] of Object.entries(contextExtensions)) {
-              if (extensions[context].hasOwnProperty(extensionKey)) {
+              if (Object.hasOwn(extensions[context], extensionKey)) {
                 const existingVendor = extensionSources[context][extensionKey];
                 const currentVendor = vendorModule.info.name;
                 

src/index.ts

@@ -1,4 +1,4 @@
-import { Plugin } from 'prettier';
+import type { Plugin } from 'prettier';
 import * as yaml from 'js-yaml';
 import { getVendorExtensions } from './extensions/vendor-loader.js';
 

test/coverage.test.ts

@@ -9,13 +9,13 @@ describe('Coverage Tests', () => {
 
       // Test with null content
       expect(() => {
-        // @ts-ignore We are testing edge cases
+        // @ts-expect-error We are testing edge cases
         jsonParser?.parse('null', {});
       }).toThrow();
 
       // Test with undefined content
       expect(() => {
-        // @ts-ignore We are testing edge cases
+        // @ts-expect-error We are testing edge cases
         jsonParser?.parse('undefined', {});
       }).toThrow();
     });
@@ -26,13 +26,13 @@ describe('Coverage Tests', () => {
 
       // Test with string content
       expect(() => {
-        // @ts-ignore We are testing edge cases
+        // @ts-expect-error We are testing edge cases
         jsonParser?.parse('"string"', {});
       }).toThrow();
 
       // Test with number content
       expect(() => {
-        // @ts-ignore We are testing edge cases
+        // @ts-expect-error We are testing edge cases
         jsonParser?.parse('123', {});
       }).toThrow();
     });
@@ -43,7 +43,7 @@ describe('Coverage Tests', () => {
 
       // Test with array content
       expect(() => {
-        // @ts-ignore We are testing edge cases
+        // @ts-expect-error We are testing edge cases
         jsonParser?.parse('[]', {});
       }).toThrow();
     });
@@ -54,7 +54,7 @@ describe('Coverage Tests', () => {
 
       // Test with malformed JSON
       expect(() => {
-        // @ts-ignore We are testing edge cases
+        // @ts-expect-error We are testing edge cases
         jsonParser?.parse('{invalid json}', {});
       }).toThrow('Failed to parse OpenAPI JSON');
     });
@@ -65,7 +65,7 @@ describe('Coverage Tests', () => {
 
       // Test with malformed YAML
       expect(() => {
-        // @ts-ignore We are testing edge cases
+        // @ts-expect-error We are testing edge cases
         yamlParser?.parse('invalid: yaml: content:', {});
       }).toThrow('Failed to parse OpenAPI YAML');
     });
@@ -97,7 +97,7 @@ properties:
       ];
 
       paths.forEach(path => {
-        // @ts-ignore We are testing edge cases
+        // @ts-expect-error We are testing edge cases
         const result = yamlParser?.parse(testYaml, { filepath: path });
         expect(result).toBeDefined();
         expect(result?.type).toBe('openapi-yaml');
@@ -113,7 +113,7 @@ info:
   title: Test API
   version: 1.0.0`;
 
-      // @ts-ignore We are testing edge cases
+      // @ts-expect-error We are testing edge cases
       const result = yamlParser?.parse(testYaml, {});
       expect(result).toBeDefined();
       expect(result?.type).toBe('openapi-yaml');
@@ -131,7 +131,7 @@ info:
     '200':
       description: Success`;
 
-      // @ts-ignore We are testing edge cases
+      // @ts-expect-error We are testing edge cases
       const result = yamlParser?.parse(operationYaml, { filepath: 'paths/users.yaml' });
       expect(result).toBeDefined();
       expect(result?.type).toBe('openapi-yaml');
@@ -147,7 +147,7 @@ required: true
 schema:
   type: integer`;
 
-      // @ts-ignore We are testing edge cases
+      // @ts-expect-error We are testing edge cases
       const result = yamlParser?.parse(parameterYaml, { filepath: 'components/parameters/UserId.yaml' });
       expect(result).toBeDefined();
       expect(result?.type).toBe('openapi-yaml');
@@ -166,7 +166,7 @@ properties:
 required:
   - id`;
 
-      // @ts-ignore We are testing edge cases
+      // @ts-expect-error We are testing edge cases
       const result = yamlParser?.parse(schemaYaml, { filepath: 'components/schemas/User.yaml' });
       expect(result).toBeDefined();
       expect(result?.type).toBe('openapi-yaml');
@@ -182,7 +182,7 @@ content:
     schema:
       type: object`;
 
-      // @ts-ignore We are testing edge cases
+      // @ts-expect-error We are testing edge cases
       const result = yamlParser?.parse(responseYaml, { filepath: 'components/responses/UserResponse.yaml' });
       expect(result).toBeDefined();
       expect(result?.type).toBe('openapi-yaml');
@@ -196,7 +196,7 @@ content:
 scheme: bearer
 bearerFormat: JWT`;
 
-      // @ts-ignore We are testing edge cases
+      // @ts-expect-error We are testing edge cases
       const result = yamlParser?.parse(securityYaml, { filepath: 'components/securitySchemes/BearerAuth.yaml' });
       expect(result).toBeDefined();
       expect(result?.type).toBe('openapi-yaml');
@@ -209,7 +209,7 @@ bearerFormat: JWT`;
       const serverYaml = `url: https://api.example.com
 description: Production server`;
 
-      // @ts-ignore We are testing edge cases
+      // @ts-expect-error We are testing edge cases
       const result = yamlParser?.parse(serverYaml, { filepath: 'servers/production.yaml' });
       expect(result).toBeDefined();
       expect(result?.type).toBe('openapi-yaml');
@@ -222,7 +222,7 @@ description: Production server`;
       const tagYaml = `name: users
 description: User management operations`;
 
-      // @ts-ignore We are testing edge cases
+      // @ts-expect-error We are testing edge cases
       const result = yamlParser?.parse(tagYaml, { filepath: 'tags/users.yaml' });
       expect(result).toBeDefined();
       expect(result?.type).toBe('openapi-yaml');
@@ -235,7 +235,7 @@ description: User management operations`;
       const externalDocsYaml = `url: https://example.com/docs
 description: External documentation`;
 
-      // @ts-ignore We are testing edge cases
+      // @ts-expect-error We are testing edge cases
       const result = yamlParser?.parse(externalDocsYaml, { filepath: 'externalDocs/api.yaml' });
       expect(result).toBeDefined();
       expect(result?.type).toBe('openapi-yaml');
@@ -251,7 +251,7 @@ description: External documentation`;
     '200':
       description: Success`;
 
-      // @ts-ignore We are testing edge cases
+      // @ts-expect-error We are testing edge cases
       const result = yamlParser?.parse(webhookYaml, { filepath: 'webhooks/messageCreated.yaml' });
       expect(result).toBeDefined();
       expect(result?.type).toBe('openapi-yaml');
@@ -275,7 +275,7 @@ description: External documentation`;
         }
       };
 
-      // @ts-ignore We are testing edge cases
+      // @ts-expect-error We are testing edge cases
       const result = jsonPrinter?.print({ getValue: () => testData }, { tabWidth: 2 }, () => '');
       expect(result).toBeDefined();
       
@@ -311,7 +311,7 @@ description: External documentation`;
         }
       };
 
-      // @ts-ignore We are testing edge cases
+      // @ts-expect-error We are testing edge cases
       const result = jsonPrinter?.print({ getValue: () => testData }, { tabWidth: 2 }, () => '');
       expect(result).toBeDefined();
       
@@ -349,7 +349,7 @@ description: External documentation`;
         }
       };
 
-      // @ts-ignore We are testing edge cases
+      // @ts-expect-error We are testing edge cases
       const result = jsonPrinter?.print({ getValue: () => testData }, { tabWidth: 2 }, () => '');
       expect(result).toBeDefined();
       

test/custom-extensions.test.ts

@@ -14,7 +14,7 @@ describe('Custom Extensions Support', () => {
       'x-metadata': { 'custom': 'data' }
     };
 
-    // @ts-ignore We are mocking things here
+    // @ts-expect-error We are mocking things here
     const result = jsonParser?.parse(JSON.stringify(testJson), {});
     expect(result).toBeDefined();
     expect(result?.content).toBeDefined();
@@ -35,7 +35,7 @@ describe('Custom Extensions Support', () => {
       }
     };
 
-    // @ts-ignore We are mocking things here
+    // @ts-expect-error We are mocking things here
     const result = jsonParser?.parse(JSON.stringify(testJson), {});
     expect(result).toBeDefined();
     expect(result?.content.info).toBeDefined();
@@ -61,7 +61,7 @@ describe('Custom Extensions Support', () => {
       }
     };
 
-    // @ts-ignore We are mocking things here
+    // @ts-expect-error We are mocking things here
     const result = jsonParser?.parse(JSON.stringify(testJson), {});
     expect(result).toBeDefined();
     expect(result?.content.paths['/test'].get['x-rate-limit']).toBe(100);
@@ -88,7 +88,7 @@ describe('Custom Extensions Support', () => {
       }
     };
 
-    // @ts-ignore We are mocking things here
+    // @ts-expect-error We are mocking things here
     const result = jsonParser?.parse(JSON.stringify(testJson), {});
     expect(result).toBeDefined();
     expect(result?.content.components.schemas.User['x-custom-type']).toBe('entity');
@@ -108,7 +108,7 @@ describe('Custom Extensions Support', () => {
       }
     };
 
-// @ts-ignore We are mocking things here so we don't need to pass a print function
+// @ts-expect-error We are mocking things here so we don't need to pass a print function
     const result = jsonPrinter?.print({ getValue: () => testData }, { tabWidth: 2 }, () => '');
     expect(result).toBeDefined();
     expect(result).toContain('"x-custom-field"');
@@ -129,7 +129,7 @@ describe('Custom Extensions Support', () => {
       }
     };
 
-    // @ts-ignore We are mocking things here so we don't need to pass a print function
+    // @ts-expect-error We are mocking things here so we don't need to pass a print function
     const result = yamlPrinter?.print({ getValue: () => testData }, { tabWidth: 2 }, () => '');
     expect(result).toBeDefined();
     expect(result).toContain('x-custom-field:');
@@ -148,7 +148,7 @@ describe('Custom Extensions Support', () => {
       'another-unknown': 'value'
     };
 
-    // @ts-ignore We are mocking things here
+    // @ts-expect-error We are mocking things here
     const result = jsonParser?.parse(JSON.stringify(testJson), {});
     expect(result).toBeDefined();
     expect(result?.content).toBeDefined();
@@ -169,7 +169,7 @@ describe('Custom Extensions Support', () => {
         }
       };
 
-    // @ts-ignore We are mocking things here
+    // @ts-expect-error We are mocking things here
       const result = jsonPrinter?.print({ getValue: () => testData }, { tabWidth: 2 }, () => '');
       expect(result).toBeDefined();
 
@@ -207,7 +207,7 @@ describe('Custom Extensions Support', () => {
         }
       };
 
-    // @ts-ignore We are mocking things here
+    // @ts-expect-error We are mocking things here
       const result = jsonPrinter?.print({ getValue: () => testData }, { tabWidth: 2 }, () => '');
       expect(result).toBeDefined();
 
@@ -249,7 +249,7 @@ describe('Custom Extensions Support', () => {
         }
       };
 
-    // @ts-ignore We are mocking things here
+    // @ts-expect-error We are mocking things here
       const result = jsonPrinter?.print({ getValue: () => testData }, { tabWidth: 2 }, () => '');
       expect(result).toBeDefined();
 
@@ -295,7 +295,7 @@ describe('Custom Extensions Support', () => {
         }
       };
 
-    // @ts-ignore We are mocking things here
+    // @ts-expect-error We are mocking things here
       const result = jsonPrinter?.print({ getValue: () => testData }, { tabWidth: 2 }, () => '');
       expect(result).toBeDefined();
 
@@ -330,7 +330,7 @@ describe('Custom Extensions Support', () => {
         }
       };
 
-    // @ts-ignore We are mocking things here
+    // @ts-expect-error We are mocking things here
       const result = jsonPrinter?.print({ getValue: () => testData }, { tabWidth: 2 }, () => '');
       expect(result).toBeDefined();
 
@@ -370,7 +370,7 @@ describe('Custom Extensions Support', () => {
         }
       };
 
-    // @ts-ignore We are mocking things here
+    // @ts-expect-error We are mocking things here
       const result = jsonPrinter?.print({ getValue: () => testData }, { tabWidth: 2 }, () => '');
       expect(result).toBeDefined();
 

test/file-detection.test.ts

@@ -17,7 +17,7 @@ paths:
         '200':
           description: Success`;
 
-    // @ts-ignore We are mocking things here
+    // @ts-expect-error We are mocking things here
     const result = yamlParser?.parse(testYaml, { filepath: 'openapi.yaml' });
     
     expect(result).toBeDefined();
@@ -39,7 +39,7 @@ required:
   - id
   - name`;
 
-    // @ts-ignore We are mocking things here
+    // @ts-expect-error We are mocking things here
     const result = yamlParser?.parse(schemaYaml, { filepath: 'components/schemas/User.yaml' });
     
     expect(result).toBeDefined();
@@ -58,7 +58,7 @@ description: User ID
 schema:
   type: integer`;
 
-    // @ts-ignore We are mocking things here
+    // @ts-expect-error We are mocking things here
     const result = yamlParser?.parse(parameterYaml, { filepath: 'components/parameters/UserId.yaml' });
     
     expect(result).toBeDefined();
@@ -81,7 +81,7 @@ content:
         name:
           type: string`;
 
-    // @ts-ignore We are mocking things here
+    // @ts-expect-error We are mocking things here
     const result = yamlParser?.parse(responseYaml, { filepath: 'components/responses/UserResponse.yaml' });
     
     expect(result).toBeDefined();
@@ -106,7 +106,7 @@ post:
         schema:
           type: object`;
 
-    // @ts-ignore We are mocking things here
+    // @ts-expect-error We are mocking things here
     const result = yamlParser?.parse(pathYaml, { filepath: 'paths/users.yaml' });
     
     expect(result).toBeDefined();
@@ -124,7 +124,7 @@ scheme: bearer
 bearerFormat: JWT
 description: JWT authentication`;
 
-    // @ts-ignore We are mocking things here
+    // @ts-expect-error We are mocking things here
     const result = yamlParser?.parse(securityYaml, { filepath: 'components/securitySchemes/BearerAuth.yaml' });
     
     expect(result).toBeDefined();
@@ -140,7 +140,7 @@ description: JWT authentication`;
 age: 30
 city: New York`;
 
-    // @ts-ignore We are mocking things here
+    // @ts-expect-error We are mocking things here
     expect(() => yamlParser?.parse(nonOpenAPIYaml, { filepath: 'config/data.yaml' })).toThrow('Not an OpenAPI file');
   });
 
@@ -152,7 +152,7 @@ city: New York`;
 age: 30
 city: New York`;
 
-    // @ts-ignore We are mocking things here
+    // @ts-expect-error We are mocking things here
     const result = yamlParser?.parse(simpleYaml, { filepath: 'components/schemas/User.yaml' });
     expect(result).toBeDefined();
     expect(result?.type).toBe('openapi-yaml');
@@ -183,7 +183,7 @@ properties:
     ];
 
     paths.forEach(path => {
-      // @ts-ignore We are mocking things here
+      // @ts-expect-error We are mocking things here
       const result = yamlParser?.parse(componentYaml, { filepath: path });
       expect(result).toBeDefined();
       expect(result?.type).toBe('openapi-yaml');

test/integration.test.ts

@@ -220,7 +220,7 @@ describe('Integration Tests', () => {
         content: openApiContent
       };
 
-      // @ts-ignore We are mocking things here
+      // @ts-expect-error We are mocking things here
       const result = jsonPrinter?.print({ getValue: () => testData }, { tabWidth: 2 }, () => '');
       expect(result).toBeDefined();
       
@@ -369,7 +369,7 @@ describe('Integration Tests', () => {
         content: swaggerContent
       };
 
-      // @ts-ignore We are mocking things here
+      // @ts-expect-error We are mocking things here
       const result = jsonPrinter?.print({ getValue: () => testData }, { tabWidth: 2 }, () => '');
       expect(result).toBeDefined();
       
@@ -420,7 +420,7 @@ describe('Integration Tests', () => {
         content: yamlContent
       };
 
-      // @ts-ignore We are mocking things here
+      // @ts-expect-error We are mocking things here
       const result = yamlPrinter?.print({ getValue: () => testData }, { tabWidth: 2 }, () => '');
       expect(result).toBeDefined();
       
@@ -447,7 +447,7 @@ describe('Integration Tests', () => {
 
       const malformedJson = '{"openapi": "3.0.0", "info": {';
 
-      // @ts-ignore We are mocking things here
+      // @ts-expect-error We are mocking things here
       expect(() => jsonParser?.parse(malformedJson, {})).toThrow();
     });
 
@@ -457,7 +457,7 @@ describe('Integration Tests', () => {
 
       const malformedYaml = 'openapi: 3.0.0\ninfo:\n  title: Test\n  version: 1.0.0\n  invalid: [';
 
-      // @ts-ignore We are mocking things here
+      // @ts-expect-error We are mocking things here
       expect(() => yamlParser?.parse(malformedYaml, {})).toThrow();
     });
 
@@ -467,7 +467,7 @@ describe('Integration Tests', () => {
 
       const nonOpenAPI = '{"name": "John", "age": 30}';
 
-      // @ts-ignore We are mocking things here
+      // @ts-expect-error We are mocking things here
       expect(() => jsonParser?.parse(nonOpenAPI, {})).toThrow('Not an OpenAPI file');
     });
   });
@@ -506,7 +506,7 @@ describe('Integration Tests', () => {
 
       const startTime = Date.now();
       
-      // @ts-ignore We are mocking things here
+      // @ts-expect-error We are mocking things here
       const result = jsonPrinter?.print({ getValue: () => testData }, { tabWidth: 2 }, () => '');
       
       const endTime = Date.now();

test/key-ordering.test.ts

@@ -20,7 +20,7 @@ describe('Key Ordering Tests', () => {
           }
         }
       };
-// @ts-ignore We are mocking things here so we don't need to pass a print function
+// @ts-expect-error We are mocking things here so we don't need to pass a print function
       const result = jsonPrinter?.print({ getValue: () => testData }, { tabWidth: 2 });
       expect(result).toBeDefined();
 
@@ -73,7 +73,7 @@ describe('Key Ordering Tests', () => {
         }
       };
 
-      // @ts-ignore We are mocking things here so we don't need to pass a print function
+      // @ts-expect-error We are mocking things here so we don't need to pass a print function
       const result = jsonPrinter?.print({ getValue: () => testData }, { tabWidth: 2 });
       expect(result).toBeDefined();
 
@@ -158,7 +158,7 @@ describe('Key Ordering Tests', () => {
         }
       };
 
-      // @ts-ignore We are mocking things here so we don't need to pass a print function
+      // @ts-expect-error We are mocking things here so we don't need to pass a print function
       const result = jsonPrinter?.print({ getValue: () => testData }, { tabWidth: 2 });
       expect(result).toBeDefined();
 
@@ -265,7 +265,7 @@ describe('Key Ordering Tests', () => {
           }
         }
       };
-      // @ts-ignore We are mocking things here so we don't need to pass a print function
+      // @ts-expect-error We are mocking things here so we don't need to pass a print function
       const result = jsonPrinter?.print({ getValue: () => testData }, { tabWidth: 2 });
       expect(result).toBeDefined();
 
@@ -319,7 +319,7 @@ describe('Key Ordering Tests', () => {
           }
         }
       };
-      // @ts-ignore We are mocking things here so we don't need to pass a print function
+      // @ts-expect-error We are mocking things here so we don't need to pass a print function
       const result = jsonPrinter?.print({ getValue: () => testData }, { tabWidth: 2 });
       expect(result).toBeDefined();
 
@@ -392,7 +392,7 @@ describe('Key Ordering Tests', () => {
           }
         }
       };
-      // @ts-ignore We are mocking things here so we don't need to pass a print function
+      // @ts-expect-error We are mocking things here so we don't need to pass a print function
       const result = jsonPrinter?.print({ getValue: () => testData }, { tabWidth: 2 });
       expect(result).toBeDefined();
 
@@ -438,7 +438,7 @@ describe('Key Ordering Tests', () => {
           ]
         }
       };
-// @ts-ignore We are mocking things here so we don't need to pass a print function
+// @ts-expect-error We are mocking things here so we don't need to pass a print function
       const result = jsonPrinter?.print({ getValue: () => testData }, { tabWidth: 2 });
       expect(result).toBeDefined();
 
@@ -482,7 +482,7 @@ describe('Key Ordering Tests', () => {
           ]
         }
       };
-// @ts-ignore We are mocking things here so we don't need to pass a print function
+// @ts-expect-error We are mocking things here so we don't need to pass a print function
       const result = jsonPrinter?.print({ getValue: () => testData }, { tabWidth: 2 });
       expect(result).toBeDefined();
 
@@ -521,7 +521,7 @@ describe('Key Ordering Tests', () => {
           }
         }
       };
-// @ts-ignore We are mocking things here so we don't need to pass a print function
+// @ts-expect-error We are mocking things here so we don't need to pass a print function
       const result = jsonPrinter?.print({ getValue: () => testData }, { tabWidth: 2 });
       expect(result).toBeDefined();
 
@@ -554,7 +554,7 @@ describe('Key Ordering Tests', () => {
           }
         }
       };
-// @ts-ignore We are mocking things here so we don't need to pass a print function
+// @ts-expect-error We are mocking things here so we don't need to pass a print function
       const result = jsonPrinter?.print({ getValue: () => testData }, { tabWidth: 2 });
       expect(result).toBeDefined();
 
@@ -598,7 +598,7 @@ describe('Key Ordering Tests', () => {
           }
         }
       };
-// @ts-ignore We are mocking things here so we don't need to pass a print function
+// @ts-expect-error We are mocking things here so we don't need to pass a print function
       const result = jsonPrinter?.print({ getValue: () => testData }, { tabWidth: 2 });
       expect(result).toBeDefined();
 

test/plugin.test.ts

@@ -29,14 +29,14 @@ describe('Prettier OpenAPI Plugin', () => {
 }`;
 
     // Parse the JSON
-    // @ts-ignore We are mocking things here
+    // @ts-expect-error We are mocking things here
     const parsed = jsonParser?.parse(inputJson, {});
     expect(parsed).toBeDefined();
     expect(parsed?.type).toBe('openapi-json');
     expect(parsed?.content).toBeDefined();
 
     // Format the parsed content
-    // @ts-ignore We are mocking things here
+    // @ts-expect-error We are mocking things here
     const result = jsonPrinter?.print({ getValue: () => parsed }, { tabWidth: 2 }, () => '');
     
     expect(result).toBeDefined();
@@ -76,14 +76,14 @@ info:
 openapi: 3.0.0`;
 
     // Parse the YAML
-    // @ts-ignore We are mocking things here
+    // @ts-expect-error We are mocking things here
     const parsed = yamlParser?.parse(inputYaml, {});
     expect(parsed).toBeDefined();
     expect(parsed?.type).toBe('openapi-yaml');
     expect(parsed?.content).toBeDefined();
 
     // Format the parsed content
-    // @ts-ignore We are mocking things here
+    // @ts-expect-error We are mocking things here
     const result = yamlPrinter?.print({ getValue: () => parsed }, { tabWidth: 2 }, () => '');
     
     expect(result).toBeDefined();
@@ -143,14 +143,14 @@ openapi: 3.0.0`;
 }`;
 
     // Parse the JSON
-    // @ts-ignore We are mocking things here
+    // @ts-expect-error We are mocking things here
     const parsed = jsonParser?.parse(inputJson, {});
     expect(parsed).toBeDefined();
     expect(parsed?.type).toBe('openapi-json');
     expect(parsed?.content).toBeDefined();
 
     // Format the parsed content
-    // @ts-ignore We are mocking things here
+    // @ts-expect-error We are mocking things here
     const result = jsonPrinter?.print({ getValue: () => parsed }, { tabWidth: 2 }, () => '');
     
     expect(result).toBeDefined();
@@ -195,14 +195,14 @@ describe('Key Ordering Tests', () => {
 }`;
 
       // Parse the JSON
-      // @ts-ignore We are mocking things here
+      // @ts-expect-error We are mocking things here
       const parsed = jsonParser?.parse(inputJson, {});
       expect(parsed).toBeDefined();
       expect(parsed?.type).toBe('openapi-json');
       expect(parsed?.content).toBeDefined();
 
       // Format the parsed content
-      // @ts-ignore We are mocking things here
+      // @ts-expect-error We are mocking things here
       const result = jsonPrinter?.print({ getValue: () => parsed }, { tabWidth: 2 }, () => '');
 
       expect(result).toBeDefined();
@@ -254,14 +254,14 @@ describe('Key Ordering Tests', () => {
 }`;
 
       // Parse the JSON
-      // @ts-ignore We are mocking things here
+      // @ts-expect-error We are mocking things here
       const parsed = jsonParser?.parse(inputJson, {});
       expect(parsed).toBeDefined();
       expect(parsed?.type).toBe('openapi-json');
       expect(parsed?.content).toBeDefined();
 
       // Format the parsed content
-      // @ts-ignore We are mocking things here
+      // @ts-expect-error We are mocking things here
       const result = jsonPrinter?.print({ getValue: () => parsed }, { tabWidth: 2 }, () => '');
 
       expect(result).toBeDefined();

test/simple-ordering.test.ts

@@ -18,7 +18,7 @@ describe('Simple Key Ordering Tests', () => {
       }
     };
 
-    // @ts-ignore We are mocking things here
+    // @ts-expect-error We are mocking things here
     const result = jsonPrinter?.print({ getValue: () => testData }, { tabWidth: 2 }, () => '');
     expect(result).toBeDefined();
     
@@ -71,7 +71,7 @@ describe('Simple Key Ordering Tests', () => {
       }
     };
 
-    // @ts-ignore We are mocking things here
+    // @ts-expect-error We are mocking things here
     const result = jsonPrinter?.print({ getValue: () => testData }, { tabWidth: 2 }, () => '');
     expect(result).toBeDefined();
 
@@ -122,7 +122,7 @@ describe('Simple Key Ordering Tests', () => {
       }
     };
 
-    // @ts-ignore We are mocking things here
+    // @ts-expect-error We are mocking things here
     const result = jsonPrinter?.print({ getValue: () => testData }, { tabWidth: 2 }, () => '');
     expect(result).toBeDefined();
 
@@ -159,7 +159,7 @@ describe('Simple Key Ordering Tests', () => {
       }
     };
 
-    // @ts-ignore We are mocking things here
+    // @ts-expect-error We are mocking things here
     const result = jsonPrinter?.print({ getValue: () => testData }, { tabWidth: 2 }, () => '');
     expect(result).toBeDefined();
 

tsconfig.json

@@ -1,9 +1,9 @@
 {
   "compilerOptions": {
-    "target": "ES2020",
+    "target": "ESNext",
     "module": "ESNext",
     "moduleResolution": "node",
-    "lib": ["ES2020"],
+    "lib": ["ESNext"],
     "outDir": "./dist",
     "rootDir": "./src",
     "strict": true,