--- /dev/null
+import unittest
+from testing import yes_no, await_true
+from testing.board import led_pin, default_pin, led_hardwired, led_inverted
+from digitalio import *
+
+class TestDigitalInOut(unittest.TestCase):
+
+ def test_default(self):
+ """DigitalInOut is input with no pull when constructed"""
+ with DigitalInOut(default_pin) as dio:
+ self.assertEqual(dio.direction, Direction.INPUT)
+ self.assertEqual(dio.pull, None)
+
+ def test_switch_to_output(self):
+ """Default configuration of switch_to_output is respected"""
+ with DigitalInOut(default_pin) as dio:
+ dio.switch_to_output()
+ self.assertEqual(dio.direction, Direction.OUTPUT)
+ self.assertEqual(dio.value, False)
+ self.assertEqual(dio.drive_mode, DriveMode.PUSH_PULL)
+
+ def test_switch_to_input(self):
+ """Default configuration of switch_to_input is respected"""
+ with DigitalInOut(default_pin) as dio:
+ dio.switch_to_output() # starts as input anyway
+ dio.switch_to_input()
+ self.assertEqual(dio.direction, Direction.INPUT)
+ self.assertEqual(dio.pull, None)
+
+
+class TestDigitalInOutInteractive(unittest.TestCase):
+
+ def test_blink(self):
+ """LED blinks when proper attributes set"""
+ print()
+ from adafruit_blinka.agnostic import sleep
+ if not(led_hardwired) and not(yes_no("Is LED wired to {}".format(led_pin))):
+ return # test trivially passed
+ with DigitalInOut(led_pin) as led:
+ led.direction = Direction.OUTPUT
+ # should now be OUT, PUSH_PULL, value=0, and LED should light
+ led.value = False if led_inverted else True
+ self.assertTrue(yes_no("Is LED lit"))
+ print("Winking LED...")
+ for count in range(2):
+ led.value = not(led.value)
+ sleep(0.5)
+ led.value = not(led.value)
+ sleep(0.5)
+ self.assertTrue(yes_no("Did LED wink twice"))
+
+ def test_button_pull_up(self):
+ print()
+ """Pull-up button configured and detected"""
+ with DigitalInOut(default_pin) as button:
+ #button.direction = Direction.INPUT # implied
+ try:
+ button.pull = Pull.UP
+ except NotImplementedError as e:
+ print()
+ print(e)
+ return # test trivially passed
+ if yes_no("Is Button wired from {} to GND".format(default_pin)):
+ self.assertTrue(button.value == True)
+ self.assertTrue(await_true("button pressed", lambda: button.value == False))
+
+ def test_button_pull_down(self):
+ print()
+ """Pull-down button configured and detected"""
+ with DigitalInOut(default_pin) as button:
+ #button.direction = Direction.INPUT # implied
+ try:
+ button.pull = Pull.DOWN
+ except NotImplementedError as e:
+ print(e)
+ return # test trivially passed
+ if (yes_no("Is Button wired from {} to VCC".format(default_pin))):
+ self.assertTrue(button.value == False)
+ self.assertTrue(await_true("button pressed", lambda: button.value == True))
+