add logging test

stdlib/Distributed/test/distributed_exec.jl

@@ -1876,6 +1876,18 @@ begin
     end
 end
 
+# test logging
+w = only(addprocs(1))
+@test_logs (:info, "from pid $w") begin
+    prev_logger = global_logger(current_logger())
+    try
+        wait(@spawnat w @info("from pid $(myid())"))
+    finally
+        global_logger(prev_logger)
+    end
+end
+wait(rmprocs([w]))
+
 # Run topology tests last after removing all workers, since a given
 # cluster at any time only supports a single topology.
 rmprocs(workers())