micropython/tests/float/builtin_float_round.py

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# test round() with floats
# check basic cases
tests = [
[0.0],
[1.0],
[0.1],
[-0.1],
[123.4],
[123.6],
[-123.4],
[-123.6],
[1.234567, 5],
[1.23456, 1],
[1.23456, 0],
[1234.56, -2],
]
for t in tests:
print(round(*t))
# check .5 cases
for i in range(11):
print(round((i - 5) / 2))
# test second arg
for i in range(-1, 3):
print(round(1.47, i))
# test inf and nan
for val in (float("inf"), float("nan")):
try:
round(val)
except (ValueError, OverflowError) as e:
print(type(e))