Add tests

Author: Rollczi

.github/workflows/ build.yml

@@ -48,12 +48,27 @@ jobs:
             artifacts/${{ env.ARTIFACT }}
           retention-days: 7
 
+  test:
+    needs: build
+    runs-on: ubuntu-latest
+    steps:
+      - name: Download artifacts
+        uses: actions/download-artifact@v4
+        with:
+          name: docs
+          path: artifacts
+
+      - name: Test documentation
+        uses: JetBrains/writerside-checker-action@v1
+        with:
+          instance: ${{ env.INSTANCE }}
+
   deploy:
     environment:
       name: github-pages
       url: ${{ steps.deployment.outputs.page_url }}
     # Requires build job results
-    needs: build
+    needs: [ build, test ]
     runs-on: ubuntu-latest
 
     steps:
@@ -80,7 +95,7 @@ jobs:
   publish-indexes:
     environment:
       name: algolia-index
-    needs: [ build, deploy ]
+    needs: [ build, test, deploy ]
     runs-on: ubuntu-latest
     container:
       image: registry.jetbrains.team/p/writerside/builder/algolia-publisher:2.0.32-3