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, 6 insertions, 7 deletions

diff --git a/test/crltest.c b/test/crltest.c
index 048f67f..720c13b 100644
--- a/test/crltest.c
+++ b/test/crltest.c
@@ -364,23 +364,22 @@ static int test_unknown_critical_crl(int n)
     return r;
 }
 
-int test_main(int argc, char *argv[])
+int setup_tests(void)
 {
-    int status = EXIT_FAILURE;
-
     if (!TEST_ptr(test_root = X509_from_strings(kCRLTestRoot))
         || !TEST_ptr(test_leaf = X509_from_strings(kCRLTestLeaf)))
-        goto err;
+        return 0;
 
     ADD_TEST(test_no_crl);
     ADD_TEST(test_basic_crl);
     ADD_TEST(test_bad_issuer_crl);
     ADD_TEST(test_known_critical_crl);
     ADD_ALL_TESTS(test_unknown_critical_crl, OSSL_NELEM(unknown_critical_crls));
+    return 1;
+}
 
-    status = run_tests(argv[0]);
-err:
+void cleanup_tests(void)
+{
     X509_free(test_root);
     X509_free(test_leaf);
-    return status;
 }