Testbench diagnostics

MooreScripts/python/MooreScripts/testbench/asyncdim.py

@@ -69,7 +69,10 @@ class DimService:
         def callback(timestamp, tag, value):
             assert tag == self._tag
             if isinstance(value, str):
-                assert value[-1] == "\0"
+                if not value[-1] == "\0":
+                    msg = f"Unexpected DIM response {value!r}"
+                    log.fatal(msg)
+                    raise RuntimeError(msg)
                 value = value[:-1]
             log.debug(f"{self._name}: callback got {value!r}")
             self._queue.put_nowait((timestamp, value))

MooreScripts/python/MooreScripts/testbench/emulator.py

@@ -289,8 +289,9 @@ async def tasks_wait_for_status(tasks, status, *, skip=[], utgid=None):
             st = await t.status()
         statuses[t.utgid] = st
     if not all(s == status for s in statuses.values()):
-        log.error(f"Unexpected statuses: {statuses}")
-        raise RuntimeError(f"Unexpected statuses: {statuses}")
+        message = f"Unexpected statuses: {statuses}"
+        log.error(message)
+        raise RuntimeError(message)
 
 
 async def tasks_wait_for_exit(tasks):