def test_documented_examples():
# PIPG-41
assert float_type.decode(0xfd007d00) == 32
assert float_type.decode(0xff000140) == 32
assert float_type.decode(0x01000140) == 3200
assert float_type.decode(0x02000020) == 3200
def m2i(self, pkt, x):
return float_type.decode(x)
def test_too_big():
with pytest.raises(ValueError):
float_type.decode(0xffffffffffffffffffff)
def test_encode_decode_identity(num):
assert float_type.decode(float_type.encode(num)) == num
def test_negative():
assert float_type.decode(0x00ffffff) == -1
def test_basic():
assert float_type.decode(1) == 1
def test_negative_infinity():
neginf = float_type.decode(0x00800002)
assert neginf < 0
assert math.isinf(neginf)
def test_positive_infinity():
posinf = float_type.decode(0x007ffffe)
assert posinf > 0
assert math.isinf(posinf)
def test_inferred_special_values():
assert math.isnan(float_type.decode(0x007fffff))
assert math.isnan(
float_type.decode(0x00800000)) # "Not at this resolution"