Steve vibranium

src/MaterialManager.py

@@ -19,10 +19,19 @@ def changeMaterial(self, material) -> bool:
                 self.carManager.setMaterial(materialType.Carbon)
                 returnText = "Material is changed to Carbon."
 
+            case _ metarialType.Vibranium:
+                self.carManager.setMaterial(materialType.Vibranium)
+                returnText = "Material is changed to Vibranium."
             case _:
-                returnText = "Material seletion is invalid."
-
+                returnText = "Material selection is invalid."
         return self._announceMaterial(returnText)
 
     def _announceMaterial(self, text: str) -> bool:
-        return self.announcer(text)
+        returnValue = False
+        try:
+            returnValue = self.announcer(text)
+        except:
+            print("Announcement of materials type is failed.")
+            returnValue = False
+        finally:
+        return returnValue

src/Util.py

@@ -1,3 +1,3 @@
 from enum import Enum
-
-materialType = Enum('Titanium', 'Carbon')
+#vibranium is specific to Steve's car
+materialType = Enum('Titanium', 'Carbon','Vibranium')