webcam copy

tests/test_serial_scenario.py

@@ -45,6 +45,45 @@ class SerialScenarioTest(unittest.TestCase):
         self.assertEqual(DEFAULT_ACK_TARGET, bytes.fromhex("07804020902D"))
         self.assertEqual(DEFAULT_ACK_FRAME, bytes.fromhex("05004000001F"))
 
+    def test_dry_run_summarizes_webcam_snapshot_options(self):
+        scenario = {
+            "name": "unit-camera",
+            "steps": [
+                {
+                    "action": "send",
+                    "label": "camera_test",
+                    "frame": "00 00 00 80 80 5A",
+                }
+            ],
+        }
+        with tempfile.TemporaryDirectory() as tmpdir:
+            path = Path(tmpdir) / "scenario.json"
+            snapshot_dir = Path(tmpdir) / "shots"
+            path.write_text(json.dumps(scenario), encoding="utf-8")
+            stdout = io.StringIO()
+
+            exit_code = main(
+                [
+                    str(path),
+                    "--dry-run",
+                    "--snapshot-dir",
+                    str(snapshot_dir),
+                    "--camera-index",
+                    "1",
+                    "--snapshot-before-send",
+                    "--snapshot-delays",
+                    "0,0.25,1",
+                ],
+                stdout=stdout,
+            )
+
+        output = stdout.getvalue()
+        self.assertEqual(exit_code, 0)
+        self.assertIn(f"snapshots={snapshot_dir}", output)
+        self.assertIn("camera_index=1", output)
+        self.assertIn("before_send=1", output)
+        self.assertIn("delays=0,0.25,1", output)
+
 
 if __name__ == "__main__":
     unittest.main()