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-rw-r--r--tests/basics/int_bytes_intbig.py12
1 files changed, 12 insertions, 0 deletions
diff --git a/tests/basics/int_bytes_intbig.py b/tests/basics/int_bytes_intbig.py
index ce6fec40a..b19c8ae53 100644
--- a/tests/basics/int_bytes_intbig.py
+++ b/tests/basics/int_bytes_intbig.py
@@ -15,3 +15,15 @@ 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")