test/context_internal_test.c

   1 /*
   2  * Copyright 2019-2022 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the Apache License 2.0 (the "License").  You may not use
   5  * this file except in compliance with the License.  You can obtain a copy
   6  * in the file LICENSE in the source distribution or at
   7  * https://www.openssl.org/source/license.html
   8  */
   9
  10 /* Internal tests for the OpenSSL library context */
  11
  12 #include "internal/cryptlib.h"
  13 #include "testutil.h"
  14
  15 static int test_set0_default(void)
  16 {
  17     OSSL_LIB_CTX *global = OSSL_LIB_CTX_get0_global_default();
  18     OSSL_LIB_CTX *local = OSSL_LIB_CTX_new();
  19     OSSL_LIB_CTX *prev;
  20     int testresult = 0;
  21
  22     if (!TEST_ptr(global)
  23             || !TEST_ptr(local)
  24             || !TEST_ptr_eq(global, OSSL_LIB_CTX_set0_default(NULL)))
  25         goto err;
  26
  27     /* Check we can change the local default context */
  28     if (!TEST_ptr(prev = OSSL_LIB_CTX_set0_default(local))
  29             || !TEST_ptr_eq(global, prev))
  30         goto err;
  31
  32     /* Calling OSSL_LIB_CTX_set0_default() with a NULL should be a no-op */
  33     if (!TEST_ptr_eq(local, OSSL_LIB_CTX_set0_default(NULL)))
  34         goto err;
  35
  36     /* Global default should be unchanged */
  37     if (!TEST_ptr_eq(global, OSSL_LIB_CTX_get0_global_default()))
  38         goto err;
  39
  40     /* Check we can swap back to the global default */
  41     if (!TEST_ptr(prev = OSSL_LIB_CTX_set0_default(global))
  42             || !TEST_ptr_eq(local, prev))
  43         goto err;
  44
  45     testresult = 1;
  46  err:
  47     OSSL_LIB_CTX_free(local);
  48     return testresult;
  49 }
  50
  51 int setup_tests(void)
  52 {
  53     ADD_TEST(test_set0_default);
  54     return 1;
  55 }