Add vitest

.github/workflows/vitest.yml

@@ -0,0 +1,39 @@
+name: 'frontend vitest'
+on:
+    pull_request:
+      paths-ignore:
+        - 'docs/**'
+    push:
+      branches:
+        - main
+      paths-ignore:
+        - 'docs/**'
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    permissions:
+      # Required to checkout the code
+      contents: read
+      # Required to put a comment into the pull-request
+      pull-requests: write
+    defaults:
+        run:
+          working-directory: ./frontend
+    steps:
+    - uses: actions/checkout@v4
+    - name: 'Install Node'
+      uses: actions/setup-node@v4
+      with:
+        node-version: '20.x'
+    - name: 'Install Deps'
+      run: npm install
+    - name: 'Test'
+      run: npx vitest --coverage.enabled true
+    - name: 'Report Coverage'
+      # Set if: always() to also generate the report if tests are failing
+      # Only works if you set `reportOnFailure: true` in your vite config as specified above
+      if: always() 
+      uses:  davelosert/vitest-coverage-report-action@v2
+      working-directory: ./frontend