Fix broken testing on numbers that may be greater than MPI_MAX_SIZE
Previously `mbedtls_mpi_exp_mod` was tested with values that were over
`MBEDTLS_MPI_MAX_SIZE` in size. This is useful to do as some paths are only
taken when the exponent is large enough however, on builds where
`MBEDTLS_MPI_MAX_SIZE` is under the size of these test values.
This fix turns off these tests when `MBEDTLS_MPI_MAX_SIZE` is too small to
safely test (notably this is the case in config-thread.h).
Signed-off-by: Chris Jones <christopher.jones@arm.com>
diff --git a/tests/suites/test_suite_mpi.function b/tests/suites/test_suite_mpi.function
index 6f305e9..f44db70 100644
--- a/tests/suites/test_suite_mpi.function
+++ b/tests/suites/test_suite_mpi.function
@@ -1,6 +1,10 @@
/* BEGIN_HEADER */
#include "mbedtls/bignum.h"
+#if MBEDTLS_MPI_MAX_BITS > 256
+#define MPI_MAX_BITS_LARGER_THAN_256
+#endif
+
typedef struct mbedtls_test_mpi_random
{
data_t *data;
@@ -1132,7 +1136,7 @@
}
/* END_CASE */
-/* BEGIN_CASE */
+/* BEGIN_CASE depends_on:MPI_MAX_BITS_LARGER_THAN_256 */
void mbedtls_mpi_exp_mod( int radix_A, char * input_A, int radix_E,
char * input_E, int radix_N, char * input_N,
int radix_RR, char * input_RR, int radix_X,