Add botan_block_cipher_query_keylen plus some new FFI error codes

1 files changed, 10 insertions, 0 deletions

diff --git a/src/tests/test_ffi.cpp b/src/tests/test_ffi.cpp
index c0afd9ac2..5940a1009 100644
--- a/src/tests/test_ffi.cpp
+++ b/src/tests/test_ffi.cpp
@@ -860,6 +860,16 @@ class FFI_Unit_Tests final : public Test
 
             TEST_FFI_RC(16, botan_block_cipher_block_size, (cipher));
 
+            size_t min_keylen = 0, max_keylen = 0, mod_keylen = 0;
+            TEST_FFI_RC(0, botan_block_cipher_query_keylen, (cipher, nullptr, nullptr, nullptr));
+            TEST_FFI_RC(0, botan_block_cipher_query_keylen, (cipher, &min_keylen, nullptr, nullptr));
+            TEST_FFI_RC(0, botan_block_cipher_query_keylen, (cipher, nullptr, &max_keylen, nullptr));
+            TEST_FFI_RC(0, botan_block_cipher_query_keylen, (cipher, nullptr, nullptr, &mod_keylen));
+
+            result.test_eq("Expected min keylen", min_keylen, 16);
+            result.test_eq("Expected max keylen", max_keylen, 16);
+            result.test_eq("Expected mod keylen", mod_keylen, 1);
+
             TEST_FFI_OK(botan_block_cipher_set_key, (cipher, zero16.data(), zero16.size()));
 
             TEST_FFI_OK(botan_block_cipher_encrypt_blocks, (cipher, block.data(), block.data(), 1));