added test feature and credentials

dummygpio.py

@@ -0,0 +1,46 @@
+import time
+
+HIGH = True
+LOW = False
+IN = 0
+PUD_UP = None
+DUMMY_FALLING_EDGE = "FALLING"
+CHANGE_PIN_VALUE_AFTER = 8  # Transition to HIGH after 5 seconds
+BCM = 0
+FALLING = None
+pull_up_down = {PUD_UP: DUMMY_FALLING_EDGE}
+state = HIGH
+pin_last_change = {}
+
+
+def setwarnings(value):
+    pass
+
+
+def setmode(mode):
+    pass
+
+
+def cleanup():
+    pass
+
+
+def setup(pin, direction, **kwargs):
+    pin_last_change[pin] = time.time()
+
+
+def input(pin):
+    last_change = pin_last_change.get(pin, 0)
+    current = time.time()
+
+    if current - last_change >= CHANGE_PIN_VALUE_AFTER:
+        pin_last_change[pin] = current
+        return HIGH
+
+    return LOW
+
+
+def add_event_detect(pin, edge, callback, **kwargs):
+    pin_last_change[pin] = time.time()
+    if edge == FALLING:
+        callback(pin)