selftest: refactor to separate the list of tests from the logic

No behavior change.
diff --git a/programs/test/selftest.c b/programs/test/selftest.c
index 82e9581..399f0d7 100644
--- a/programs/test/selftest.c
+++ b/programs/test/selftest.c
@@ -96,9 +96,120 @@
             test_snprintf( 5, "123",         3 ) != 0 );
 }
 
+#if defined(MBEDTLS_SELF_TEST)
+#if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
+int mbedtls_memory_buffer_alloc_free_and_self_test( int verbose )
+{
+    if( verbose != 0 )
+    {
+#if defined(MBEDTLS_MEMORY_DEBUG)
+        mbedtls_memory_buffer_alloc_status( );
+#endif
+    }
+    mbedtls_memory_buffer_alloc_free( );
+    return( mbedtls_memory_buffer_alloc_self_test( verbose ) );
+}
+#endif
+
+typedef struct
+{
+    const char *name;
+    int ( *function )( int );
+} selftest_t;
+
+const selftest_t selftests[] =
+{
+#if defined(MBEDTLS_MD2_C)
+    {"md2", mbedtls_md2_self_test},
+#endif
+#if defined(MBEDTLS_MD4_C)
+    {"md4", mbedtls_md4_self_test},
+#endif
+#if defined(MBEDTLS_MD5_C)
+    {"md5", mbedtls_md5_self_test},
+#endif
+#if defined(MBEDTLS_RIPEMD160_C)
+    {"ripemd160", mbedtls_ripemd160_self_test},
+#endif
+#if defined(MBEDTLS_SHA1_C)
+    {"sha1", mbedtls_sha1_self_test},
+#endif
+#if defined(MBEDTLS_SHA256_C)
+    {"sha256", mbedtls_sha256_self_test},
+#endif
+#if defined(MBEDTLS_SHA512_C)
+    {"sha512", mbedtls_sha512_self_test},
+#endif
+#if defined(MBEDTLS_ARC4_C)
+    {"arc4", mbedtls_arc4_self_test},
+#endif
+#if defined(MBEDTLS_DES_C)
+    {"des", mbedtls_des_self_test},
+#endif
+#if defined(MBEDTLS_AES_C)
+    {"aes", mbedtls_aes_self_test},
+#endif
+#if defined(MBEDTLS_GCM_C) && defined(MBEDTLS_AES_C)
+    {"gcm", mbedtls_gcm_self_test},
+#endif
+#if defined(MBEDTLS_CCM_C) && defined(MBEDTLS_AES_C)
+    {"ccm", mbedtls_ccm_self_test},
+#endif
+#if defined(MBEDTLS_BASE64_C)
+    {"base64", mbedtls_base64_self_test},
+#endif
+#if defined(MBEDTLS_BIGNUM_C)
+    {"mpi", mbedtls_mpi_self_test},
+#endif
+#if defined(MBEDTLS_RSA_C)
+    {"rsa", mbedtls_rsa_self_test},
+#endif
+#if defined(MBEDTLS_X509_USE_C)
+    {"x509", mbedtls_x509_self_test},
+#endif
+#if defined(MBEDTLS_XTEA_C)
+    {"xtea", mbedtls_xtea_self_test},
+#endif
+#if defined(MBEDTLS_CAMELLIA_C)
+    {"camellia", mbedtls_camellia_self_test},
+#endif
+#if defined(MBEDTLS_CTR_DRBG_C)
+    {"ctr_drbg", mbedtls_ctr_drbg_self_test},
+#endif
+#if defined(MBEDTLS_HMAC_DRBG_C)
+    {"hmac_drbg", mbedtls_hmac_drbg_self_test},
+#endif
+#if defined(MBEDTLS_ECP_C)
+    {"ecp", mbedtls_ecp_self_test},
+#endif
+#if defined(MBEDTLS_DHM_C)
+    {"dhm", mbedtls_dhm_self_test},
+#endif
+#if defined(MBEDTLS_ENTROPY_C)
+    {"entropy", mbedtls_entropy_self_test},
+#endif
+#if defined(MBEDTLS_PKCS5_C)
+    {"pkcs5", mbedtls_pkcs5_self_test},
+#endif
+/* Slower test after the faster ones */
+#if defined(MBEDTLS_TIMING_C)
+    {"timing", mbedtls_timing_self_test},
+#endif
+/* Heap test comes last */
+#if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
+    {"memory_buffer_alloc", mbedtls_memory_buffer_alloc_free_and_self_test},
+#endif
+    {NULL, NULL}
+};
+#endif /* MBEDTLS_SELF_TEST */
+
 int main( int argc, char *argv[] )
 {
-    int ret = 0, v;
+#if defined(MBEDTLS_SELF_TEST)
+    const selftest_t *test;
+#endif /* MBEDTLS_SELF_TEST */
+    int v;
+    int suites_tested = 0, suites_failed = 0;
 #if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
     unsigned char buf[1000000];
 #endif
@@ -139,132 +250,14 @@
     mbedtls_memory_buffer_alloc_init( buf, sizeof(buf) );
 #endif
 
-#if defined(MBEDTLS_MD2_C)
-    if( ( ret = mbedtls_md2_self_test( v ) ) != 0 )
-        return( ret );
-#endif
-
-#if defined(MBEDTLS_MD4_C)
-    if( ( ret = mbedtls_md4_self_test( v ) ) != 0 )
-        return( ret );
-#endif
-
-#if defined(MBEDTLS_MD5_C)
-    if( ( ret = mbedtls_md5_self_test( v ) ) != 0 )
-        return( ret );
-#endif
-
-#if defined(MBEDTLS_RIPEMD160_C)
-    if( ( ret = mbedtls_ripemd160_self_test( v ) ) != 0 )
-        return( ret );
-#endif
-
-#if defined(MBEDTLS_SHA1_C)
-    if( ( ret = mbedtls_sha1_self_test( v ) ) != 0 )
-        return( ret );
-#endif
-
-#if defined(MBEDTLS_SHA256_C)
-    if( ( ret = mbedtls_sha256_self_test( v ) ) != 0 )
-        return( ret );
-#endif
-
-#if defined(MBEDTLS_SHA512_C)
-    if( ( ret = mbedtls_sha512_self_test( v ) ) != 0 )
-        return( ret );
-#endif
-
-#if defined(MBEDTLS_ARC4_C)
-    if( ( ret = mbedtls_arc4_self_test( v ) ) != 0 )
-        return( ret );
-#endif
-
-#if defined(MBEDTLS_DES_C)
-    if( ( ret = mbedtls_des_self_test( v ) ) != 0 )
-        return( ret );
-#endif
-
-#if defined(MBEDTLS_AES_C)
-    if( ( ret = mbedtls_aes_self_test( v ) ) != 0 )
-        return( ret );
-#endif
-
-#if defined(MBEDTLS_GCM_C) && defined(MBEDTLS_AES_C)
-    if( ( ret = mbedtls_gcm_self_test( v ) ) != 0 )
-        return( ret );
-#endif
-
-#if defined(MBEDTLS_CCM_C) && defined(MBEDTLS_AES_C)
-    if( ( ret = mbedtls_ccm_self_test( v ) ) != 0 )
-        return( ret );
-#endif
-
-#if defined(MBEDTLS_BASE64_C)
-    if( ( ret = mbedtls_base64_self_test( v ) ) != 0 )
-        return( ret );
-#endif
-
-#if defined(MBEDTLS_BIGNUM_C)
-    if( ( ret = mbedtls_mpi_self_test( v ) ) != 0 )
-        return( ret );
-#endif
-
-#if defined(MBEDTLS_RSA_C)
-    if( ( ret = mbedtls_rsa_self_test( v ) ) != 0 )
-        return( ret );
-#endif
-
-#if defined(MBEDTLS_X509_USE_C)
-    if( ( ret = mbedtls_x509_self_test( v ) ) != 0 )
-        return( ret );
-#endif
-
-#if defined(MBEDTLS_XTEA_C)
-    if( ( ret = mbedtls_xtea_self_test( v ) ) != 0 )
-        return( ret );
-#endif
-
-#if defined(MBEDTLS_CAMELLIA_C)
-    if( ( ret = mbedtls_camellia_self_test( v ) ) != 0 )
-        return( ret );
-#endif
-
-#if defined(MBEDTLS_CTR_DRBG_C)
-    if( ( ret = mbedtls_ctr_drbg_self_test( v ) ) != 0 )
-        return( ret );
-#endif
-
-#if defined(MBEDTLS_HMAC_DRBG_C)
-    if( ( ret = mbedtls_hmac_drbg_self_test( v ) ) != 0 )
-        return( ret );
-#endif
-
-#if defined(MBEDTLS_ECP_C)
-    if( ( ret = mbedtls_ecp_self_test( v ) ) != 0 )
-        return( ret );
-#endif
-
-#if defined(MBEDTLS_DHM_C)
-    if( ( ret = mbedtls_dhm_self_test( v ) ) != 0 )
-        return( ret );
-#endif
-
-#if defined(MBEDTLS_ENTROPY_C)
-    if( ( ret = mbedtls_entropy_self_test( v ) ) != 0 )
-        return( ret );
-#endif
-
-#if defined(MBEDTLS_PKCS5_C)
-    if( ( ret = mbedtls_pkcs5_self_test( v ) ) != 0 )
-        return( ret );
-#endif
-
-/* Slow tests last */
-
-#if defined(MBEDTLS_TIMING_C)
-    if( ( ret = mbedtls_timing_self_test( v ) ) != 0 )
-        return( ret );
-#endif
+    for( test = selftests; test->name != NULL; test++ )
+    {
+        if( test->function( v )  != 0 )
+        {
+            suites_failed++;
+        }
+        suites_tested++;
+    }
 
 #else
     mbedtls_printf( " MBEDTLS_SELF_TEST not defined.\n" );
@@ -272,26 +265,24 @@
 
     if( v != 0 )
     {
-#if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C) && defined(MBEDTLS_MEMORY_DEBUG)
-        mbedtls_memory_buffer_alloc_status();
-#endif
-    }
+        mbedtls_printf( "  Executed %d test suites\n\n", suites_tested );
 
-#if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
-    mbedtls_memory_buffer_alloc_free();
-
-    if( ( ret = mbedtls_memory_buffer_alloc_self_test( v ) ) != 0 )
-        return( ret );
-#endif
-
-    if( v != 0 )
-    {
-        mbedtls_printf( "  [ All tests passed ]\n\n" );
+        if( suites_failed > 0)
+        {
+            mbedtls_printf( "  [ %d tests FAILED ]\n\n", suites_failed );
+        }
+        else
+        {
+            mbedtls_printf( "  [ All tests passed ]\n\n" );
+        }
 #if defined(_WIN32)
         mbedtls_printf( "  Press Enter to exit this program.\n" );
         fflush( stdout ); getchar();
 #endif
     }
 
-    return( ret );
+    if( suites_failed > 0)
+        return( EXIT_FAILURE );
+
+    return( EXIT_SUCCESS );
 }