1 /*
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
3 *
4 * Copyright 2021 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 */
28
29 #include "cx/allocator.h"
30 #include <gtest/gtest.h>
31
32 TEST(Allocator, DefaultAllocator) {
33 cx_allocator_class *clazz = cxDefaultAllocator->cl;
34 ASSERT_NE(clazz, nullptr);
35 }
36
37 TEST(Allocator, DefaultMalloc) {
38 void *test = cxMalloc(cxDefaultAllocator, 16);
39 ASSERT_NE(test, nullptr);
40 free(test);
41 }
42
43 TEST(Allocator, DefaultRealloc) {
44 void *test = calloc(8, 1);
45 memcpy(test, "Test", 5);
46 test = cxRealloc(cxDefaultAllocator, test, 16);
47 ASSERT_NE(test, nullptr);
48 EXPECT_STREQ(reinterpret_cast<char *>(test), "Test");
49 free(test);
50 }
51
52 TEST(Allocator, Reallocate) {
53 void *test = calloc(8, 1);
54 memcpy(test, "Test", 5);
55 int ret = cxReallocate(cxDefaultAllocator, &test, 16);
56 EXPECT_EQ(ret, 0);
57 ASSERT_NE(test, nullptr);
58 EXPECT_STREQ(reinterpret_cast<char *>(test), "Test");
59 free(test);
60 }
61
62 TEST(Allocator, DefaultCalloc) {
63 char *test = reinterpret_cast<char *>(cxCalloc(cxDefaultAllocator, 8, 2));
64 ASSERT_NE(test, nullptr);
65 for (int i = 0; i < 16; i++) ASSERT_EQ(test[i], 0);
66 free(test);
67 }
68
69 TEST(Allocator, DefaultFree) {
70 void *test = malloc(16);
71 EXPECT_NO_FATAL_FAILURE(
72 cxFree(cxDefaultAllocator, test);
73 );
74 }
75
76 TEST(Allocator, FailingReallocate) {
77 // Mock an allocator that always returns nullptr on realloc
78 cx_allocator_class mock_cl;
79 mock_cl.realloc = [](
80 [[maybe_unused]]void *p,
81 [[maybe_unused]]void *d,
82 [[maybe_unused]]size_t n
83 ) -> void * { return nullptr; };
84 cx_allocator_s mock{&mock_cl, nullptr};
85
86 void *test = calloc(8, 1);
87 memcpy(test, "Test", 5);
88 void *original = test;
89 int ret = cxReallocate(&mock, &test, 16);
90 // non-zero return code because of the failure
91 EXPECT_NE(ret, 0);
92 // the test pointer was not changed and still points to the same memory
93 EXPECT_EQ(test, original);
94 EXPECT_STREQ(reinterpret_cast<char *>(test), "Test");
95 free(test);
96 }
97