def test_round_trip(self):
test_data = [struct.unpack('<f', os.urandom(4))[0]
for _ in range(1000)]
for value in test_data:
round_tripped = hex_to_float(float_to_hex(value))
if math.isnan(value):
assert math.isnan(round_tripped)
else:
assert round_tripped == value
def test_round_trip(self):
test_data = [
_pad_to(hex(struct.unpack('<I', os.urandom(4))[0]), 8)
for _ in range(1000)]
for value in test_data:
fromhex = hex_to_float(value)
if math.isnan(fromhex):
continue
round_tripped = float_to_hex(fromhex)
assert round_tripped == value
def test_negative_inf(self):
expected = '0xff800000'
result = float_to_hex(-float('inf'))
assert result == expected
def test_inf(self):
expected = '0x7f800000'
result = float_to_hex(float('inf'))
assert result == expected
def test_nan(self):
round_tripped = hex_to_float(float_to_hex(float('nan')))
assert math.isnan(round_tripped)
def test_negative_zero(self):
expected = '0x80000000'
result = float_to_hex(-0.0)
assert result == expected
def test_zero(self):
expected = '0x00000000'
result = float_to_hex(0.0)
assert result == expected
