add pytest suite for dio

diff --git a/examples/generic_dio.py b/examples/generic_dio.py
new file mode 100644 (file)
index 0000000..c9311db
--- /dev/null
+++ b/examples/generic_dio.py
@@ -0,0 +1,50 @@
+import pytest
+import board
+import digitalio
+
+
+# Digital Input Pins
+
+def test_Dx_INPUT_TRUE():
+  assert board.board_id == "GENERIC_AGNOSTIC_BOARD"
+  pin_true = digitalio.DigitalInOut(board.Dx_INPUT_TRUE)
+  pin_true.direction = digitalio.Direction.INPUT
+  assert pin_true.value == True
+  assert pin_true.value == True # Test subsequent call does not change value
+  pin_true.deinit()
+
+def test_Dx_INPUT_TRUE_PULL_DOWN():
+  assert board.board_id == "GENERIC_AGNOSTIC_BOARD"
+  pin_true = digitalio.DigitalInOut(board.Dx_INPUT_TRUE)
+  pin_true.direction = digitalio.Direction.INPUT
+  assert pin_true.value == True
+  assert pin_true.value == True # Test subsequent call does not change value
+  pin_true.pull = digitalio.Pull.DOWN
+  assert pin_true.value == False
+  pin_true.deinit()
+
+def test_Dx_INPUT_FALSE_PULL_UP():
+  assert board.board_id == "GENERIC_AGNOSTIC_BOARD"
+  pin_false = digitalio.DigitalInOut(board.Dx_INPUT_FALSE)
+  pin_false.direction = digitalio.Direction.INPUT
+  assert pin_false.value == False
+  assert pin_false.value == False # Test subsequent call does not change value
+  pin_false.pull = digitalio.Pull.UP
+  assert pin_false.value == False
+  pin_false.deinit()
+
+def test_Dx_INPUT_FALSE():
+  assert board.board_id == "GENERIC_AGNOSTIC_BOARD"
+  pin_false = digitalio.DigitalInOut(board.Dx_INPUT_FALSE)
+  pin_false.direction = digitalio.Direction.INPUT
+  assert pin_false.value == False
+  assert pin_false.value == False # Test subsequent call does not change value
+  pin_false.deinit()
+
+def test_Dx_INPUT_TOGGLE():
+  assert board.board_id == "GENERIC_AGNOSTIC_BOARD"
+  pin_toggle = digitalio.DigitalInOut(board.Dx_INPUT_TOGGLE)
+  pin_toggle.direction = digitalio.Direction.INPUT
+  assert pin_toggle.value == True
+  assert pin_toggle.value == False # Test subsequent call does change value for this pin
+  pin_toggle.deinit()