refactor(test): remove duplicated code in conftest.py (#804)

Author: imstevenpmwork

tests/conftest.py

@@ -36,82 +36,47 @@ def pytest_collection_finish():
     print(f"\nTesting with {DEVICE=}")
 
 
-@pytest.fixture
-def is_robot_available(robot_type):
-    if robot_type not in available_robots:
+def _check_component_availability(component_type, available_components, make_component):
+    """Generic helper to check if a hardware component is available"""
+    if component_type not in available_components:
         raise ValueError(
-            f"The robot type '{robot_type}' is not valid. Expected one of these '{available_robots}"
+            f"The {component_type} type is not valid. Expected one of these '{available_components}'"
         )
 
     try:
-        robot = make_robot(robot_type)
-        robot.connect()
-        del robot
+        component = make_component(component_type)
+        component.connect()
+        del component
         return True
 
     except Exception as e:
-        print(f"\nA {robot_type} robot is not available.")
+        print(f"\nA {component_type} is not available.")
 
         if isinstance(e, ModuleNotFoundError):
             print(f"\nInstall module '{e.name}'")
         elif isinstance(e, SerialException):
-            print("\nNo physical motors bus detected.")
+            print("\nNo physical device detected.")
+        elif isinstance(e, ValueError) and "camera_index" in str(e):
+            print("\nNo physical camera detected.")
         else:
             traceback.print_exc()
 
         return False
 
 
 @pytest.fixture
-def is_camera_available(camera_type):
-    if camera_type not in available_cameras:
-        raise ValueError(
-            f"The camera type '{camera_type}' is not valid. Expected one of these '{available_cameras}"
-        )
-
-    try:
-        camera = make_camera(camera_type)
-        camera.connect()
-        del camera
-        return True
+def is_robot_available(robot_type):
+    return _check_component_availability(robot_type, available_robots, make_robot)
 
-    except Exception as e:
-        print(f"\nA {camera_type} camera is not available.")
 
-        if isinstance(e, ModuleNotFoundError):
-            print(f"\nInstall module '{e.name}'")
-        elif isinstance(e, ValueError) and "camera_index" in e.args[0]:
-            print("\nNo physical camera detected.")
-        else:
-            traceback.print_exc()
-
-        return False
+@pytest.fixture
+def is_camera_available(camera_type):
+    return _check_component_availability(camera_type, available_cameras, make_camera)
 
 
 @pytest.fixture
 def is_motor_available(motor_type):
-    if motor_type not in available_motors:
-        raise ValueError(
-            f"The motor type '{motor_type}' is not valid. Expected one of these '{available_motors}"
-        )
-
-    try:
-        motors_bus = make_motors_bus(motor_type)
-        motors_bus.connect()
-        del motors_bus
-        return True
-
-    except Exception as e:
-        print(f"\nA {motor_type} motor is not available.")
-
-        if isinstance(e, ModuleNotFoundError):
-            print(f"\nInstall module '{e.name}'")
-        elif isinstance(e, SerialException):
-            print("\nNo physical motors bus detected.")
-        else:
-            traceback.print_exc()
-
-        return False
+    return _check_component_availability(motor_type, available_motors, make_motors_bus)
 
 
 @pytest.fixture