diff --git a/web/shl/package.json b/web/shl/package.json
index 485880b..4216b43 100644
--- a/web/shl/package.json
+++ b/web/shl/package.json
@@ -14,9 +14,11 @@
     "react-dom": "^18.3.1"
   },
   "devDependencies": {
+    "@testing-library/jest-dom": "^6.4.8",
     "@testing-library/react": "^16.0.0",
     "@types/react": "18.3.3",
     "@types/react-dom": "18.3.0",
+    "jsdom": "^24.1.1",
     "typescript": "5.5.3",
     "vitest": "^2.0.0"
   }
diff --git a/web/shl/vitest.config.ts b/web/shl/vitest.config.ts
new file mode 100644
index 0000000..262024c
--- /dev/null
+++ b/web/shl/vitest.config.ts
@@ -0,0 +1,8 @@
+import { defineConfig } from "vitest/config";
+
+export default defineConfig({
+  test: {
+    environment: "jsdom",
+    setupFiles: ["./vitest.setup.ts"],
+  },
+});
diff --git a/web/shl/vitest.setup.ts b/web/shl/vitest.setup.ts
new file mode 100644
index 0000000..f149f27
--- /dev/null
+++ b/web/shl/vitest.setup.ts
@@ -0,0 +1 @@
+import "@testing-library/jest-dom/vitest";