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-rw-r--r--tests/test_utils.py3
1 files changed, 3 insertions, 0 deletions
diff --git a/tests/test_utils.py b/tests/test_utils.py
index e454cc20..4673b49e 100644
--- a/tests/test_utils.py
+++ b/tests/test_utils.py
@@ -141,6 +141,9 @@ def test_der_encode_dsa_signature_values():
sig3 = der_encode_dsa_signature(0, 0)
assert sig3 == b"0\x06\x02\x01\x00\x02\x01\x00"
+ sig4 = der_encode_dsa_signature(-1, 0)
+ assert sig4 == b"0\x06\x02\x01\xFF\x02\x01\x00"
+
def test_load_nist_vectors():
vector_data = textwrap.dedent("""