Add Cipher layer corner case test coverage
diff --git a/tests/suites/test_suite_cipher.aes.data b/tests/suites/test_suite_cipher.aes.data
index 9c21cfc..9b39bc9 100644
--- a/tests/suites/test_suite_cipher.aes.data
+++ b/tests/suites/test_suite_cipher.aes.data
@@ -1097,3 +1097,6 @@
AES-256-ECB Decrypt NIST KAT #12
depends_on:MBEDTLS_AES_C
test_vec_ecb:MBEDTLS_CIPHER_AES_256_ECB:MBEDTLS_DECRYPT:"0000000000000000000000000000000000000000000000000000000000000000":"9b80eefb7ebe2d2b16247aa0efc72f5d":"e0000000000000000000000000000000":0
+
+Cipher Corner Case behaviours
+cipher_special_behaviours:
diff --git a/tests/suites/test_suite_cipher.function b/tests/suites/test_suite_cipher.function
index 967a6a0..1073524 100644
--- a/tests/suites/test_suite_cipher.function
+++ b/tests/suites/test_suite_cipher.function
@@ -91,6 +91,44 @@
}
/* END_CASE */
+/* BEGIN_CASE depends_on:MBEDTLS_AES_C */
+void cipher_special_behaviours( )
+{
+ const mbedtls_cipher_info_t *cipher_info;
+ mbedtls_cipher_context_t ctx;
+ unsigned char input[32];
+ unsigned char output[32];
+ unsigned char iv[32];
+ size_t olen = 0;
+
+ mbedtls_cipher_init( &ctx );
+ memset( input, 0, sizeof( input ) );
+ memset( output, 0, sizeof( output ) );
+ memset( iv, 0, sizeof( iv ) );
+
+ /* Check and get info structures */
+ cipher_info = mbedtls_cipher_info_from_type( MBEDTLS_CIPHER_AES_128_ECB );
+ TEST_ASSERT( NULL != cipher_info );
+
+ TEST_ASSERT( 0 == mbedtls_cipher_setup( &ctx, cipher_info ) );
+
+ /* IV too big */
+ TEST_ASSERT( mbedtls_cipher_set_iv( &ctx, iv, MBEDTLS_MAX_IV_LENGTH + 1 )
+ == MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE );
+
+ /* IV too small */
+ TEST_ASSERT( mbedtls_cipher_set_iv( &ctx, iv, 0 )
+ == MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
+
+ /* Update ECB with partial block */
+ TEST_ASSERT( mbedtls_cipher_update( &ctx, input, 1, output, &olen )
+ == MBEDTLS_ERR_CIPHER_FULL_BLOCK_EXPECTED );
+
+exit:
+ mbedtls_cipher_free( &ctx );
+}
+/* END_CASE */
+
/* BEGIN_CASE */
void enc_dec_buf( int cipher_id, char *cipher_string, int key_len,
int length_val, int pad_mode )