test.py

#!/usr/bin/python2
import unittest
from jumper.vlab import Vlab


class TestDebouncer(unittest.TestCase):
    def setUp(self):
        # set up the device simulation
        self.v = Vlab(working_directory=".", print_uart=True, token="demo-token-for-ci")
        self.v.load("BUILD/STM32_Button_Debounce.bin")
        self.v.on_pin_level_event(self.pin_listener)
        # running for a while to get the BSP done
        self.v.run_for_ms(10)
        self.is_led_on = False
        self.times_pressed = 0

    def tearDown(self):
        self.v.stop()

    def pin_listener(self, pin_number, pin_level):
        if pin_number == 5 and pin_level == 1:
            self.is_led_on = True
            self.times_pressed = self.times_pressed + 1

    def test_debouncer(self):
        self.v.UserButton.on()
        self.v.run_for_ms(10)
        self.v.UserButton.off()
        self.v.run_for_ms(10)
        self.v.UserButton.on()
        self.v.run_for_ms(10)
        self.v.UserButton.off()
        self.v.run_for_ms(10)
        self.v.UserButton.on()
        self.v.UserButton.off()
        self.v.run_for_ms(280)
        self.assertEqual(self.is_led_on, True, "LED was never turned on")
        self.assertEqual(self.times_pressed, 1, "Number of times pressed should have been 1 but was {}".format(self.times_pressed))


if __name__ == '__main__':
    unittest.main()