Use vitest

package.json

@@ -23,18 +23,19 @@
   "scripts": {
     "prepare": "rollup -c",
     "lint": "eslint .",
-    "test": "npm run prepare && npm run tests-only && npm run lint",
-    "tests-only": "jest --testMatch '**/test/*.js' --coverage"
+    "test": "npm run tests-only && npm run lint",
+    "tests-only": "vitest run --coverage"
   },
   "devDependencies": {
     "@typescript-eslint/eslint-plugin": "^5.3.0",
     "@typescript-eslint/parser": "^5.3.0",
+    "@vitest/coverage-c8": "^0.26.2",
     "eslint": "^8.2.0",
     "eslint-config-airbnb-base": "^15.0.0",
     "eslint-plugin-import": "^2.22.0",
-    "jest": "^29.2.0",
-    "rollup": "^3.2.2",
-    "rollup-plugin-typescript2": "^0.34.0",
-    "typescript": "^4.0.2"
+    "rollup": "^3.8.1",
+    "rollup-plugin-typescript2": "^0.34.1",
+    "typescript": "^4.0.2",
+    "vitest": "^0.26.2"
   }
 }

test/index.js → src/index.test.js

@@ -1,5 +1,6 @@
-const assert = require('assert');
-const parseChatMarkup = require('..').default;
+import assert from 'assert';
+import { describe, it } from 'vitest';
+import parseChatMarkup from './index.ts';
 
 describe('parseChatMarkup', () => {
   const bareOptions = {};

src/index.ts

@@ -297,7 +297,7 @@ export default function parse(message: string, options: MarkupOptions = {}): Mar
         return { type: 'link', text: token.text, href: httpify(token.text) };
       case TokenType.Text:
         return token.text;
-      /* istanbul ignore next */
+      /* c8 ignore next 2 */
       default:
         throw new Error('unreachable');
     }