chore: add tests in the CI

.github/workflows/lint.yml

@@ -10,7 +10,7 @@ jobs:
     - name: Use Node.js
       uses: actions/setup-node@v3
       with:
-        node-version: "18.x"
+        node-version: "20.x"
 
     - name: Install dependencies
       run: npm install

.github/workflows/test.yml

@@ -0,0 +1,19 @@
+on: push
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Use Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: "20.x"
+
+      - name: Install dependencies
+        run: npm install
+
+      - name: Run tests
+        run: npm run test

package.json

@@ -10,7 +10,8 @@
 		"lezer": "lezer-generator src/search/search.grammar -o src/search/grammar.js",
 		"build": "tsc -noEmit -skipLibCheck && node esbuild.config.mjs production",
 		"version": "node version-bump.mjs && git add manifest.json versions.json",
-		"lint": "eslint && prettier --check **/*.mjs **/*.ts **/*.svelte"
+		"lint": "eslint && prettier --check **/*.mjs **/*.ts **/*.svelte",
+		"test": "node --test --require tsx/cjs **/*.test.ts"
 	},
 	"keywords": [],
 	"author": "",