Add main() test methods to reduce test boilerplate.

Simple tests only need to implement register_tests().
Tests that need a custom main() should implement test_main(). This will
be wrapped in a main() that performs common setup/teardown (currently
crypto-mdebug).

Note that for normal development, enable-asan is usually
sufficient for detecting leaks, and more versatile.

enable-crypto-mdebug is stricter as it will also
insist that all static variables be freed. This is useful for debugging
library init/deinit; however, it also means that test_main() must free
everything it allocates.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>

1 files changed, 2 insertions, 3 deletions

diff --git a/test/mdc2_internal_test.c b/test/mdc2_internal_test.c
index 3353507c63..9acea21c84 100644
--- a/test/mdc2_internal_test.c
+++ b/test/mdc2_internal_test.c
@@ -14,6 +14,7 @@
 
 #include <openssl/mdc2.h>
 #include "testutil.h"
+#include "test_main.h"
 #include "e_os.h"
 
 typedef struct {
@@ -63,9 +64,7 @@ static int test_mdc2(int idx)
     return 1;
 }
 
-int main(int argc, char **argv)
+void register_tests()
 {
     ADD_ALL_TESTS(test_mdc2, OSSL_NELEM(tests));
-
-    return run_tests(argv[0]);
 }