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import skip_if
skip_if.no_bigint()
print((2**64).to_bytes(9, "little"))
print((2**64).to_bytes(9, "big"))
b = bytes(range(20))
il = int.from_bytes(b, "little")
ib = int.from_bytes(b, "big")
print(il)
print(ib)
print(il.to_bytes(20, "little"))
print(ib.to_bytes(20, "big"))
# check that extra zero bytes don't change the internal int value
print(int.from_bytes(b + bytes(10), "little") == int.from_bytes(b, "little"))
# too small buffer should raise an error
try:
(2**64).to_bytes(8, "little")
except OverflowError:
print("OverflowError")
# negative numbers should raise an error
try:
(-2**64).to_bytes(9, "little")
except OverflowError:
print("OverflowError")
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