Update the test framework so that the need for test_main is removed. Everything

that needed test_main now works using the same infrastructure as tests that used
register_tests.

This meant:
* renaming register_tests to setup_tests and giving it a success/failure return.
* renaming the init_test function to setup_test_framework.
* renaming the finish_test function to pulldown_test_framework.
* adding a user provided global_init function that runs before the test frame
    work is initialised.  It returns a failure indication that stops the stest.
* adding helper functions that permit tests to access their command line args.
* spliting the BIO initialisation and finalisation out from the test setup and
    teardown.
* hiding some of the now test internal functions.
* fix the comments in testutil.h

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3953)

1 files changed, 2 insertions, 1 deletions

diff --git a/test/gmdifftest.c b/test/gmdifftest.c
index 6869300f3e..f7aa1a3808 100644
--- a/test/gmdifftest.c
+++ b/test/gmdifftest.c
@@ -55,10 +55,11 @@ static int test_gmtime(int offset)
            check_time(-offset * 1000L);
 }
 
-void register_tests(void)
+int setup_tests(void)
 {
     if (sizeof(time_t) < 8)
         TEST_info("Skipping; time_t is less than 64-bits");
     else
         ADD_ALL_TESTS_NOSUBTEST(test_gmtime, 1000000);
+    return 1;
 }