feat: [WIP] add test-mithril-client-wasm job

.github/workflows/test-client.yml

@@ -159,3 +159,73 @@ jobs:
       - name: Mithril Stake Distribution / download & restore latest
         shell: bash
         run:  ${{ steps.command.outputs.mithril_client }}  ${{ steps.prepare.outputs.debug_level }} mithril-stake-distribution download $MITHRIL_STAKE_DISTRIBUTION_HASH --download-dir /app
+
+  test-mithril-client-wasm:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ ubuntu-22.04 ]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v3
+
+      - name: Download built artifacts
+        uses: dawidd6/action-download-artifact@v2
+        with:
+          name: mithril-distribution-wasm
+          path: ./mithril-client-wasm
+          commit: ${{ steps.prepare.outputs.sha }} 
+          branch: ${{ steps.prepare.outputs.branch }}
+          workflow: ci.yml
+          workflow_conclusion: success
+
+      - name: Unpack 'mithril-client-wasm' package
+        working-directory: mithril-client-wasm
+        run: tar -xvzf pkg/*.tgz -C pkg/ && mv pkg/package/* pkg/
+
+      - name: Install dependencies
+        working-directory: mithril-client-wasm
+        run: make www-test-install
+
+      - name: Create .env file
+        working-directory: mithril-client-wasm
+        run: |
+          echo "AGGREGATOR_ENDPOINT=${{ inputs.aggregator_endpoint }}" > ./www-test/.env
+          echo "GENESIS_VERIFICATION_KEY=$(curl -s ${{ inputs.genesis_verification_key }})" >> ./www-test/.env
+
+      - name: Start the server
+        working-directory: mithril-client-wasm
+        shell: bash
+        run: make www-test-serve &
+
+      - name: Wait for the server to be ready
+        shell: bash
+        run: |
+          max_attempts=30
+          current_attempt=0
+          while ! nc -z localhost 8080 || true; do
+            sleep 1
+            ((current_attempt++))
+
+            if [ "$current_attempt" -ge "$max_attempts" ]; then
+              echo "Error: Server not ready after $max_attempts attempts."
+              exit 1
+            fi
+          done
+
+      - name: Run Chrome headless
+        working-directory: mithril-client-wasm
+        shell: bash
+        run: |
+          /usr/bin/google-chrome --headless --virtual-time-budget=60000 --dump-dom http://localhost:8080 > www-test-results.html
+          cat www-test-results.html
+
+          # Handle results
+          if grep -q 'title="FAILED"' www-test-results.html; then
+            failed_info=$(grep -oE '<div id="[^"]+" title="FAILED">([^<]+)' www-test-results.html | awk 'NR==1 {print substr($0, index($0,$4))}')
+            echo $failed_info
+            exit 1
+          else
+            echo "All tests passed."
+          fi