apds9960: Address Copilot review on device_id PR.

Author: nedseb

lib/apds9960/apds9960/device.py

@@ -80,7 +80,7 @@ def __init__(self, i2c, address=APDS9960_I2C_ADDR, valid_id=APDS9960_DEV_ID):
         self.set_gesture_int_enable(APDS9960_DEFAULT_GIEN)
 
     def device_id(self):
-        return self._read_reg(APDS9960_REG_ID)
+        return self.dev_id
 
     def get_mode(self):
         return self._read_reg(APDS9960_REG_ENABLE)

tests/scenarios/apds9960.yaml

@@ -55,6 +55,12 @@ tests:
     expect: 0xAB
     mode: [mock]
 
+  - name: "Read device ID via method"
+    action: call
+    method: device_id
+    expect: 0xAB
+    mode: [mock]
+
   - name: "Verify device ID register (hardware)"
     action: read_register
     register: 0x92