micropython/tests/misc/cexample_class.py

# test custom native class

try:
    import cexample
    import time
except ImportError:
    print("SKIP")
    raise SystemExit


SLEEP_MS = 100
TOLERANCE_MS = 20

timer = cexample.Timer()

t_start = timer.time()

time.sleep_ms(100)

t_end = timer.time()

print(timer)
print(0 <= t_start <= TOLERANCE_MS)
print(SLEEP_MS - TOLERANCE_MS <= t_end <= SLEEP_MS + TOLERANCE_MS)