diff --git a/package.json b/package.json
index d652b071..efbb0a58 100644
--- a/package.json
+++ b/package.json
@@ -51,9 +51,9 @@
     "lint:fix": "eslint src --max-warnings 0 --fix",
     "ts-check": "tsc --noEmit --project ./tsconfig.json",
     "create": "plop --plopfile scripts/plop/plopfile.js",
-    "test": "web-test-runner",
-    "test:component": "npm run test -- --watch --group",
-    "test:watch": "web-test-runner --watch",
+    "test": "web-test-runner --group default",
+    "test:component": "web-test-runner -- --watch --group",
+    "test:watch": "web-test-runner --watch --group default",
     "spellcheck": "cspell \"**/*.{js,ts,json,html,css,md}\" --no-progress",
     "list-outdated-dependencies": "npm-check-updates --format repo --peer",
     "update-dependencies": "npm-check-updates --peer -u && npm install && npm run lint:fix && npm run prettier && npm run verify"
diff --git a/web-test-runner.config.js b/web-test-runner.config.js
index 04223f45..a56dd2ea 100644
--- a/web-test-runner.config.js
+++ b/web-test-runner.config.js
@@ -4,7 +4,7 @@ import { globbySync } from 'globby';
 
 export default {
   rootDir: '.',
-  files: 'src/**/*.test.ts',
+  files: 'src/**/*.test.ts', // "default" group
   concurrentBrowsers: 3,
   nodeResolve: true,
   plugins: [
@@ -27,8 +27,8 @@ export default {
       </body>
     </html>
   `,
-  // Create a named group for every test file to enable running single tests.
-  // If a test file is `split-panel.test.ts` then you can run `npm run test -- --group split-panel` to run only that file's tests
+  // Create a named group for every test file to enable running single tests. If a test file is `split-panel.test.ts`
+  // then you can run `npm run test -- --group split-panel` to run only that component's tests.
   groups: globbySync('src/**/*.test.ts').map(path => {
     const groupName = path.match(/^.*\/(?<fileName>.*)\.test\.ts/).groups.fileName;
     return {