FrontendTest.yml: show logs from Pluto server (#2645)

.github/workflows/FrontendTest.yml

@@ -63,17 +63,19 @@ jobs:
             - name: Run tests
               working-directory: ./test/frontend
               run: |
-                  julia -e "import Pkg; Pkg.add(path=\"$GITHUB_WORKSPACE\"); Pkg.instantiate(); import Pluto; Pluto.run(port=$PLUTO_PORT, require_secret_for_access=false)" & # Run Pluto.jl server in the background
+                julia --project=$GITHUB_WORKSPACE -e 'import Pluto
+                  # Run Pluto.jl server in the background
+                  options = Pluto.Configuration.from_flat_kwargs(; 
+                    port=parse(Int, ENV["PLUTO_PORT"]), 
+                    require_secret_for_access=false,
+                  )
+                  🍭 = Pluto.ServerSession(; options)
+                  server = Pluto.run!(🍭)
 
-                  # Wait for Pluto to initialize
-                  TIMES_TRIED=0
-                  until [ $TIMES_TRIED -eq 60 ] || $(curl --output /dev/null --silent --fail "http://localhost:$PLUTO_PORT/"); do
-                      printf '.'
-                      TIMES_TRIED=$((TIMES_TRIED+1))
-                      sleep 1
-                  done
+                  run(`npm run test`)
+                  
+                  close(server)'
 
-                  npm run test
               env:
                   PLUTO_PORT: 1235
                   PLUTO_TEST_OFFLINE: ${{ github.ref_name == 'release' }}