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Diffstat (limited to 'tests/hazmat/backends')
| -rw-r--r-- | tests/hazmat/backends/test_openssl.py | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/tests/hazmat/backends/test_openssl.py b/tests/hazmat/backends/test_openssl.py index daae2065..cef28af0 100644 --- a/tests/hazmat/backends/test_openssl.py +++ b/tests/hazmat/backends/test_openssl.py @@ -239,6 +239,13 @@ class TestOpenSSLRandomEngine(object): name = backend._lib.ENGINE_get_name(current_default) assert name == backend._lib.Cryptography_osrandom_engine_name + def test_osrandom_sanity_check(self): + # This test serves as a check against catastrophic failure. + buf = backend._ffi.new("char[]", 500) + res = backend._lib.RAND_bytes(buf, 500) + assert res == 1 + assert backend._ffi.buffer(buf)[:] != "\x00" * 500 + def test_activate_osrandom_already_default(self): e = backend._lib.ENGINE_get_default_RAND() name = backend._lib.ENGINE_get_name(e) |