Generate test wrappers for psa_generate_random()

Signed-off-by: David Horstmann <david.horstmann@arm.com>
diff --git a/tests/src/psa_test_wrappers.c b/tests/src/psa_test_wrappers.c
index 032df8d..1efa1bb 100644
--- a/tests/src/psa_test_wrappers.c
+++ b/tests/src/psa_test_wrappers.c
@@ -326,7 +326,13 @@
     uint8_t *arg0_output,
     size_t arg1_output_size)
 {
+#if defined(MBEDTLS_PSA_COPY_CALLER_BUFFERS)
+    MBEDTLS_TEST_MEMORY_POISON(arg0_output, arg1_output_size);
+#endif /* defined(MBEDTLS_PSA_COPY_CALLER_BUFFERS) */
     psa_status_t status = (psa_generate_random)(arg0_output, arg1_output_size);
+#if defined(MBEDTLS_PSA_COPY_CALLER_BUFFERS)
+    MBEDTLS_TEST_MEMORY_UNPOISON(arg0_output, arg1_output_size);
+#endif /* defined(MBEDTLS_PSA_COPY_CALLER_BUFFERS) */
     return status;
 }