Unit Test Framework

[cefn]

Worth coming up with a strategy for unit testing and Testcases for bug triage structured around TDD.

For now, using unittest from https://github.com/micropython/micropython-lib/blob/cfa1b9cce0c93a3115bbff3886c9bbcddd9e8047/unittest/unittest.py and populating a testing folder in the root. In the end these will be separated to avoid cluttering the distributed files.

MicroPython v1.9.3-8-g63826ac5c on 2017-11-01; ESP module with ESP8266
Type "help()" for more information.
>>> from testing.platform.all import main
>>> main()
test_iteritems (TestEnum) ... ok
test_repr (TestEnum) ... ok
test_str (TestEnum) ... ok
Ran 3 tests

OK
test_pins_exist (TestMicrocontrollerModule) ... ok
Ran 1 tests

OK

[cefn]

As of 3b2fc26 the approach is now functioning and successfully testing LED control and Button push detection on Feather Huzzah running Micropython.

Here is an example log...

>>> import testing
>>> testing.main()
Run suite testing.implementation.all.digitalio (Y/n)?
Suite begin: testing.implementation.all.digitalio
test_switch_to_output (TestDigitalInOut) ... ok
test_switch_to_input (TestDigitalInOut) ... ok
test_default (TestDigitalInOut) ... ok
test_button_pull_down (TestDigitalInOutInteractive) ...
digitalio.Pull.DOWN unsupported on feather_huzzah
 ok
test_button_pull_up (TestDigitalInOutInteractive) ...
Is Button wired to mcp.Pin.GPIO4 to GND (Y/n)?
Waiting 60 sec until button pressed (CTRL+C give up)
 ok
test_blink (TestDigitalInOutInteractive) ...
Is LED lit (Y/n)?
Winking LED...
Did LED wink twice (Y/n)?
 ok
Ran 6 tests

OK
Suite end: testing.implementation.all.digitalio
Run suite testing.implementation.micropython.digitalio (Y/n)?
Suite begin: testing.implementation.micropython.digitalio
test_context_manager (TestDigitalInOut) ... ok
Ran 1 tests

OK
Suite end: testing.implementation.micropython.digitalio
>>> 

[ladyada]

fyi used this code for testing GPIO input & output

from board import pyboard as board
from digitalio import DigitalInOut, Direction, Pull

print("Hello!")
print(dir(board))

led = DigitalInOut(board.LED_YELLOW)
led.direction = Direction.OUTPUT
 
button = DigitalInOut(board.SW)
button.direction = Direction.INPUT
button.pull = Pull.UP
 
while True:
    led.value = not button.value