fix test setup in docs

Signed-off-by: Benny Zlotnik <bzlotnik@redhat.com>

Author: bennyz

python/packages/jumpstarter-driver-ridesx/README.md

@@ -103,16 +103,36 @@ Both drivers require:
 
 ## Usage Examples
 
+```{testsetup} *
+from jumpstarter_driver_ridesx.driver import RideSXDriver, RideSXPowerDriver
+from jumpstarter_driver_pyserial.driver import PySerial
+from jumpstarter.common.utils import serve
+import tempfile
+
+_ridesx_temp_dir = tempfile.mkdtemp()
+_ridesx_storage = serve(RideSXDriver(storage_dir=_ridesx_temp_dir, children={"serial": PySerial(url="loop://")}))
+_ridesx_power = serve(RideSXPowerDriver(children={"serial": PySerial(url="loop://")}))
+ridesx_client = _ridesx_storage.__enter__()
+ridesx_power_client = _ridesx_power.__enter__()
+```
+
+```{testcleanup} *
+_ridesx_storage.__exit__(None, None, None)
+_ridesx_power.__exit__(None, None, None)
+import shutil
+shutil.rmtree(_ridesx_temp_dir, ignore_errors=True)
+```
+
 ### Flash Single Partition
 
-```{testcode}
-# Flash a single partition
+```{code-block} python
+# Flash a single partition (paths must exist; flash runs fastboot on the exporter)
 ridesx_client.flash("/path/to/boot.img", target="boot")
 ```
 
 ### Flash Multiple Partitions
 
-```{testcode}
+```{code-block} python
 # Flash multiple partitions
 partitions = {
     "boot": "/path/to/boot.img",
@@ -126,7 +146,7 @@ ridesx_client.flash(partitions)
 
 The driver automatically handles compressed images (`.gz`, `.gzip`, `.xz`):
 
-```{testcode}
+```{code-block} python
 # Flash compressed images - decompression is automatic
 ridesx_client.flash("/path/to/boot.img.gz", target="boot")
 ```