fix async issue

hardware-testing/hardware_testing/modules/flex_stacker_dvt_qc/__main__.py

@@ -60,10 +60,16 @@ async def _main(cfg: TestConfig) -> None:
                 ui.print_error("Platform is still detected, cannot start tests")
                 return
 
+    device_info = await stacker._driver.get_device_info()
+    report.set_tag(device_info.sn if device_info.sn else "UNKNOWN")
+
     # RUN TESTS
-    for section, test_run in cfg.tests.items():
-        ui.print_title(section.value)
-        await test_run(stacker, report, section.value)
+    try:
+        for section, test_run in cfg.tests.items():
+            ui.print_title(section.value)
+            await test_run(stacker, report, section.value)
+    except Exception as e:
+        ui.print_error(f"An error occurred: {e}")
 
     # SAVE REPORT
     ui.print_title("DONE")

hardware-testing/hardware_testing/modules/flex_stacker_dvt_qc/driver.py

@@ -1,4 +1,5 @@
 """FLEX Stacker Driver."""
+import asyncio
 from typing import Union, Optional
 import re
 from serial.tools.list_ports import comports  # type: ignore[import]
@@ -42,7 +43,7 @@ async def build(cls, port: str = "") -> "FlexStackerInterface":
                     port = i.device
                     break
         assert port, "could not find connected FLEX Stacker"
-        driver = await FlexStackerDriver.create(port, loop=None)
+        driver = await FlexStackerDriver.create(port, loop=asyncio.get_running_loop())
         return cls(driver)
 
     @classmethod
@@ -174,7 +175,7 @@ async def get_estop(self) -> bool:
             return True
 
         assert isinstance(self._driver, FlexStackerDriver)
-        _LS_RE = re.compile(r"^M112 E:(\d)\n")
+        _LS_RE = re.compile(r"^M112 E:(\d)$")
         res = await self._driver._connection.send_data("M112\n")
         match = _LS_RE.match(res)
         assert match, f"Incorrect Response for E-Stop switch: {res}"