tests: Assert success of calls to mbedtls_rsa_set_padding()

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
diff --git a/tests/suites/test_suite_pkcs1_v21.function b/tests/suites/test_suite_pkcs1_v21.function
index e923e0b..ec5591f 100644
--- a/tests/suites/test_suite_pkcs1_v21.function
+++ b/tests/suites/test_suite_pkcs1_v21.function
@@ -25,7 +25,8 @@
 
     mbedtls_mpi_init( &N ); mbedtls_mpi_init( &E );
     mbedtls_rsa_init( &ctx );
-    mbedtls_rsa_set_padding( &ctx, MBEDTLS_RSA_PKCS_V21, hash );
+    TEST_ASSERT( mbedtls_rsa_set_padding( &ctx,
+                                          MBEDTLS_RSA_PKCS_V21, hash ) == 0 );
     memset( output, 0x00, sizeof( output ) );
 
     TEST_ASSERT( mbedtls_mpi_read_binary( &N, input_N->x, input_N->len ) == 0 );
@@ -69,7 +70,8 @@
     mbedtls_mpi_init( &Q ); mbedtls_mpi_init( &E );
 
     mbedtls_rsa_init( &ctx );
-    mbedtls_rsa_set_padding( &ctx, MBEDTLS_RSA_PKCS_V21, hash );
+    TEST_ASSERT( mbedtls_rsa_set_padding( &ctx,
+                                          MBEDTLS_RSA_PKCS_V21, hash ) == 0 );
 
     memset( output, 0x00, sizeof( output ) );
     memset( &rnd_info, 0, sizeof( mbedtls_test_rnd_pseudo_info ) );
@@ -134,7 +136,8 @@
     mbedtls_mpi_init( &N ); mbedtls_mpi_init( &P );
     mbedtls_mpi_init( &Q ); mbedtls_mpi_init( &E );
     mbedtls_rsa_init( &ctx );
-    mbedtls_rsa_set_padding( &ctx, MBEDTLS_RSA_PKCS_V21, hash );
+    TEST_ASSERT( mbedtls_rsa_set_padding( &ctx,
+                                          MBEDTLS_RSA_PKCS_V21, hash ) == 0 );
 
     memset( hash_result, 0x00, sizeof( hash_result ) );
     memset( output, 0x00, sizeof( output ) );
@@ -193,7 +196,8 @@
 
     mbedtls_mpi_init( &N ); mbedtls_mpi_init( &E );
     mbedtls_rsa_init( &ctx );
-    mbedtls_rsa_set_padding( &ctx, MBEDTLS_RSA_PKCS_V21, hash );
+    TEST_ASSERT( mbedtls_rsa_set_padding( &ctx,
+                                          MBEDTLS_RSA_PKCS_V21, hash ) == 0 );
     memset( hash_result, 0x00, sizeof( hash_result ) );
 
     TEST_ASSERT( mbedtls_mpi_read_binary( &N, input_N->x, input_N->len ) == 0 );
@@ -230,7 +234,8 @@
 
     mbedtls_mpi_init( &N ); mbedtls_mpi_init( &E );
     mbedtls_rsa_init( &ctx );
-    mbedtls_rsa_set_padding( &ctx, MBEDTLS_RSA_PKCS_V21, ctx_hash );
+    TEST_ASSERT( mbedtls_rsa_set_padding( &ctx,
+                                          MBEDTLS_RSA_PKCS_V21, ctx_hash ) == 0 );
     memset( hash_result, 0x00, sizeof( hash_result ) );
 
     TEST_ASSERT( mbedtls_mpi_read_binary( &N, input_N->x, input_N->len ) == 0 );