circuitpython/tests/basics/int_bytes.py

34 lines
943 B
Python

print((10).to_bytes(1, "little"))
# Test fitting in length that's not a power of two.
print((0x10000).to_bytes(3, 'little'))
print((111111).to_bytes(4, "little"))
print((100).to_bytes(10, "little"))
# check that extra zero bytes don't change the internal int value
print(int.from_bytes(bytes(20), "little") == 0)
print(int.from_bytes(b"\x01" + bytes(20), "little") == 1)
# big-endian conversion
print((10).to_bytes(1, "big"))
print((100).to_bytes(10, "big"))
print(int.from_bytes(b"\0\0\0\0\0\0\0\0\0\x01", "big"))
print(int.from_bytes(b"\x01\0", "big"))
# negative number of bytes should raise an error
try:
(1).to_bytes(-1, "little")
except ValueError:
print("ValueError")
# too small buffer should raise an error
try:
(256).to_bytes(1, "little")
except OverflowError:
print("OverflowError")
# negative numbers should raise an error
try:
(-256).to_bytes(2, "little")
except OverflowError:
print("OverflowError")