All 4 tests pass

MARISOL.md

@@ -0,0 +1,5 @@
+# MARISOL.md — Pipeline Context for piDSLM
+
+## Pipeline History
+- *2026-03-04* — Implement: All 4 tests pass
+

pidslm.py

@@ -8,6 +8,11 @@
 import subprocess
 import RPi.GPIO as GPIO # Import Raspberry Pi GPIO library
 
+# GPIO Pin Constants
+SHUTTER_PIN = 16
+VIDEO_PIN = 18
+BUSY_PIN = 25
+
 
 class piDSLM:
     def __init__(self):
@@ -17,10 +22,7 @@ def __init__(self):
         self.saved_pictures = [] 
         self.shown_picture = "" 
 
-        GPIO.setwarnings(False) # Ignore warning for now
-        GPIO.setmode(GPIO.BCM)     # set up BCM GPIO numbering
-        GPIO.setup(16, GPIO.IN, pull_up_down=GPIO.PUD_UP)
-        GPIO.add_event_detect(16, GPIO.FALLING, callback=self.takePicture, bouncetime=2500)
+        self.setup_gpio()
 
         self.app = App(layout="grid", title="Camera Controls", bg="black", width=480, height=320)
 
@@ -56,6 +58,15 @@ def __init__(self):
         self.busy.hide()
         self.app.display()
 
+    def setup_gpio(self):
+        """Setup GPIO pins for camera control."""
+        GPIO.setwarnings(False) # Ignore warning for now
+        GPIO.setmode(GPIO.BCM)     # set up BCM GPIO numbering
+        GPIO.setup(SHUTTER_PIN, GPIO.IN, pull_up_down=GPIO.PUD_UP)
+        GPIO.add_event_detect(SHUTTER_PIN, GPIO.FALLING, callback=self.takePicture, bouncetime=2500)
+        GPIO.setup(VIDEO_PIN, GPIO.OUT)
+        GPIO.setup(BUSY_PIN, GPIO.OUT)
+
     def clear(self):
         self.show_busy()
         os.system("rm -v /home/pi/Downloads/*")

tests/conftest.py

@@ -23,12 +23,94 @@
     'w1thermsensor', 'Adafruit_DHT',
     'RPIO', 'pigpio', 'wiringpi',
     'sense_hat', 'luma.core', 'luma.oled', 'luma.led_matrix',
-    'serial',
+    'serial', 'serial.tools', 'serial.tools.list_ports',
+    # Adafruit motor/servo libraries (both legacy HAT and CircuitPython-style)
+    'Adafruit_MotorHAT', 'Adafruit_MotorHAT.Adafruit_MotorHAT',
+    'adafruit_motor', 'adafruit_motor.motor', 'adafruit_motor.servo', 'adafruit_motor.stepper',
+    'adafruit_pca9685', 'adafruit_servokit',
+    'adafruit_bus_device', 'adafruit_bus_device.i2c_device', 'adafruit_bus_device.spi_device',
+    # Cloud/voice backends commonly used with RPi projects
+    'firebase', 'pyrebase', 'firebase_admin',
+    'pyttsx3', 'gtts',
+    # Audio/media
+    'pygame', 'pygame.mixer', 'pygame.time', 'pygame.event',
+    'pyaudio', 'sounddevice', 'wave',
+    # Camera variants
+    'cv2', 'PIL', 'PIL.Image',
+    # iCreate/Roomba
+    'pycreate2', 'create2api',
 ]
 
 for _mod in _RPI_MODULES:
     sys.modules[_mod] = MagicMock()
 
+# --- Realistic mock classes for Adafruit_MotorHAT ---
+# Many RPi projects use stepper/DC motors via this legacy library.
+# Provide real constants and class structure so LLM can write meaningful tests.
+_motorhat = sys.modules['Adafruit_MotorHAT']
+_motorhat.Adafruit_MotorHAT = MagicMock()
+_motorhat.Adafruit_MotorHAT.FORWARD = 1
+_motorhat.Adafruit_MotorHAT.BACKWARD = 2
+_motorhat.Adafruit_MotorHAT.BRAKE = 3
+_motorhat.Adafruit_MotorHAT.RELEASE = 4
+_motorhat.Adafruit_MotorHAT.SINGLE = 1
+_motorhat.Adafruit_MotorHAT.DOUBLE = 2
+_motorhat.Adafruit_MotorHAT.INTERLEAVE = 3
+_motorhat.Adafruit_MotorHAT.MICROSTEP = 4
+# .getStepper(steps, port) returns a mock stepper, .getMotor(port) returns DC motor
+_stepper_mock = MagicMock()
+_stepper_mock.oneStep = MagicMock(return_value=None)
+_stepper_mock.step = MagicMock(return_value=None)
+_motorhat.Adafruit_MotorHAT.return_value.getStepper = MagicMock(return_value=_stepper_mock)
+_dc_mock = MagicMock()
+_dc_mock.run = MagicMock(return_value=None)
+_dc_mock.setSpeed = MagicMock(return_value=None)
+_motorhat.Adafruit_MotorHAT.return_value.getMotor = MagicMock(return_value=_dc_mock)
+_motorhat.Adafruit_StepperMotor = MagicMock()
+_motorhat.Adafruit_DCMotor = MagicMock()
+# Also register in the sub-module path
+sys.modules['Adafruit_MotorHAT.Adafruit_MotorHAT'] = _motorhat
+
+# --- Realistic serial.Serial mock ---
+_serial = sys.modules['serial']
+_serial_inst = MagicMock()
+_serial_inst.is_open = True
+_serial_inst.in_waiting = 0
+_serial_inst.read = MagicMock(return_value=b'')
+_serial_inst.readline = MagicMock(return_value=b'')
+_serial_inst.write = MagicMock(return_value=0)
+_serial_inst.__enter__ = MagicMock(return_value=_serial_inst)
+_serial_inst.__exit__ = MagicMock(return_value=False)
+_serial.Serial = MagicMock(return_value=_serial_inst)
+
+# --- Realistic pygame.mixer mock ---
+_pygame = sys.modules['pygame']
+_pygame.init = MagicMock()
+_pygame.quit = MagicMock()
+_mixer = sys.modules['pygame.mixer']
+_mixer.init = MagicMock()
+_mixer.quit = MagicMock()
+_sound_inst = MagicMock()
+_sound_inst.play = MagicMock()
+_sound_inst.stop = MagicMock()
+_mixer.Sound = MagicMock(return_value=_sound_inst)
+_mixer.music = MagicMock()
+_mixer.music.load = MagicMock()
+_mixer.music.play = MagicMock()
+_mixer.music.stop = MagicMock()
+
+# --- Firebase mock with realistic interface ---
+_firebase = sys.modules['firebase']
+_db_mock = MagicMock()
+_db_mock.child = MagicMock(return_value=_db_mock)
+_db_mock.get = MagicMock(return_value=MagicMock(val=MagicMock(return_value={})))
+_db_mock.set = MagicMock(return_value=None)
+_db_mock.push = MagicMock(return_value={'name': '-mock_key'})
+_db_mock.update = MagicMock(return_value=None)
+_firebase.FirebaseApplication = MagicMock(return_value=_db_mock)
+_pyrebase = sys.modules['pyrebase']
+_pyrebase.initialize_app = MagicMock(return_value=MagicMock(database=MagicMock(return_value=_db_mock)))
+
 # Import hook: auto-mock ANY unknown hardware module during source file loading
 # This catches custom libraries like mp2624, adafruit_* variants, etc.
 # Uses find_spec (Python 3.4+) since find_module is deprecated and ignored in Python 3.12