ucx: tests/test_allocator.c@74d777455e96

     1 /*

     2  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.

     3  *

     4  * Copyright 2023 Mike Becker, Olaf Wintermann All rights reserved.

     5  *

     6  * Redistribution and use in source and binary forms, with or without

     7  * modification, are permitted provided that the following conditions are met:

     8  *

     9  *   1. Redistributions of source code must retain the above copyright

    10  *      notice, this list of conditions and the following disclaimer.

    11  *

    12  *   2. Redistributions in binary form must reproduce the above copyright

    13  *      notice, this list of conditions and the following disclaimer in the

    14  *      documentation and/or other materials provided with the distribution.

    15  *

    16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"

    17  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

    18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

    19  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE

    20  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

    21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

    22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

    23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

    24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

    25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

    26  * POSSIBILITY OF SUCH DAMAGE.

    27  */

    29 #include "cx/test.h"

    31 #include "cx/allocator.h"

    33 CX_TEST(test_allocator_default) {

    34     CX_TEST_DO {

    35         CX_TEST_ASSERT(cxDefaultAllocator->cl != NULL);

    36     }

    37 }

    39 CX_TEST(test_allocator_default_malloc) {

    40     void *test = cxMalloc(cxDefaultAllocator, 16);

    41     CX_TEST_DO {

    42         CX_TEST_ASSERT(test != NULL);

    43         // we cannot assert sth. but valgrind will detect an error

    44         memcpy(test, "0123456789ABCDEF", 16);

    45     }

    46     free(test);

    47 }

    49 CX_TEST(test_allocator_default_calloc) {

    50     char *test = cxCalloc(cxDefaultAllocator, 8, 2);

    51     CX_TEST_DO {

    52         CX_TEST_ASSERT(test != NULL);

    53         for (int i = 0; i < 16; i++) {

    54             CX_TEST_ASSERT(test[i] == 0);

    55         }

    56     }

    57     free(test);

    58 }

    60 CX_TEST(test_allocator_default_realloc) {

    61     char *test = calloc(8, 1);

    62     memcpy(test, "Test", 5);

    63     CX_TEST_DO {

    64         test = cxRealloc(cxDefaultAllocator, test, 16);

    65         CX_TEST_ASSERT(test != NULL);

    66         CX_TEST_ASSERT(0 == strcmp(test, "Test"));

    67     }

    68     free(test);

    69 }

    71 CX_TEST(test_allocator_default_free) {

    72     void *test = malloc(16);

    73     CX_TEST_DO {

    74         // we cannot assert sth. but valgrind will detect an error

    75         cxFree(cxDefaultAllocator, test);

    76         CX_TEST_ASSERT(true);

    77     }

    78 }

    80 CX_TEST(test_allocator_reallocate) {

    81     void *test = calloc(8, 1);

    82     memcpy(test, "Test", 5);

    83     CX_TEST_DO {

    84         int ret = cxReallocate(cxDefaultAllocator, &test, 16);

    85         CX_TEST_ASSERT(ret == 0);

    86         CX_TEST_ASSERT(test != NULL);

    87         CX_TEST_ASSERT(0 == strcmp(test, "Test"));

    88     }

    89     free(test);

    90 }

    92 CX_TEST(test_allocator_reallocate_low_level) {

    93     void *test = calloc(8, 1);

    94     memcpy(test, "Test", 5);

    95     CX_TEST_DO {

    96         int ret = cx_reallocate(&test, 16);

    97         CX_TEST_ASSERT(ret == 0);

    98         CX_TEST_ASSERT(test != NULL);

    99         CX_TEST_ASSERT(0 == strcmp(test, "Test"));

   100     }

   101     free(test);

   102 }

   104 static void *test_allocator_mock_failing_realloc(

   105         __attribute__((__unused__))void *p,

   106         __attribute__((__unused__))void *d,

   107         __attribute__((__unused__))size_t n

   108 ) {

   109     return NULL;

   110 }

   112 CX_TEST(test_allocator_reallocate_fails) {

   113     // Mock an allocator that always returns NULL on realloc

   114     cx_allocator_class mock_cl;

   115     mock_cl.realloc = test_allocator_mock_failing_realloc;

   116     CxAllocator mock = {&mock_cl, NULL};

   118     void *test = calloc(8, 1);

   119     memcpy(test, "Test", 5);

   120     void *original = test;

   121     CX_TEST_DO {

   122         int ret = cxReallocate(&mock, &test, 16);

   123         // non-zero return code because of the failure

   124         CX_TEST_ASSERT(ret != 0);

   125         // the test pointer was not changed and still points to the same memory

   126         CX_TEST_ASSERT(test == original);

   127         CX_TEST_ASSERT(0 == strcmp(test, "Test"));

   128     }

   129     free(test);

   130 }

   132 CxTestSuite *cx_test_suite_allocator(void) {

   133     CxTestSuite *suite = cx_test_suite_new("allocator");

   135     cx_test_register(suite, test_allocator_default);

   136     cx_test_register(suite, test_allocator_default_malloc);

   137     cx_test_register(suite, test_allocator_default_calloc);

   138     cx_test_register(suite, test_allocator_default_realloc);

   139     cx_test_register(suite, test_allocator_default_free);

   140     cx_test_register(suite, test_allocator_reallocate);

   141     cx_test_register(suite, test_allocator_reallocate_fails);

   142     cx_test_register(suite, test_allocator_reallocate_low_level);

   144     return suite;

   145 }

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