1 /*
2 * Copyright 2015 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8 #include "SkTemplates.h"
9 #include "Test.h"
10
11 // Tests for some of the helpers in SkTemplates.h
test_automalloc_realloc(skiatest::Reporter * reporter)12 static void test_automalloc_realloc(skiatest::Reporter* reporter) {
13 SkAutoSTMalloc<1, int> array;
14
15 // test we have a valid pointer, should not crash
16 array[0] = 1;
17 REPORTER_ASSERT(reporter, array[0] == 1);
18
19 // using realloc for init
20 array.realloc(1);
21
22 array[0] = 1;
23 REPORTER_ASSERT(reporter, array[0] == 1);
24
25 // verify realloc can grow
26 array.realloc(2);
27 REPORTER_ASSERT(reporter, array[0] == 1);
28
29 // realloc can shrink
30 array.realloc(1);
31 REPORTER_ASSERT(reporter, array[0] == 1);
32
33 // should not crash
34 array.realloc(0);
35
36 // grow and shrink again
37 array.realloc(10);
38 for (int i = 0; i < 10; i++) {
39 array[i] = 10 - i;
40 }
41 array.realloc(20);
42 for (int i = 0; i < 10; i++) {
43 REPORTER_ASSERT(reporter, array[i] == 10 - i);
44 }
45 array.realloc(10);
46 for (int i = 0; i < 10; i++) {
47 REPORTER_ASSERT(reporter, array[i] == 10 - i);
48 }
49
50 array.realloc(1);
51 REPORTER_ASSERT(reporter, array[0] = 10);
52
53 // resets mixed with realloc, below stack alloc size
54 array.reset(0);
55 array.realloc(1);
56 array.reset(1);
57
58 array[0] = 1;
59 REPORTER_ASSERT(reporter, array[0] == 1);
60
61 // reset and realloc > stack size
62 array.reset(2);
63 array.realloc(3);
64 array[0] = 1;
65 REPORTER_ASSERT(reporter, array[0] == 1);
66 array.realloc(1);
67 REPORTER_ASSERT(reporter, array[0] == 1);
68 }
69
DEF_TEST(Templates,reporter)70 DEF_TEST(Templates, reporter) {
71 test_automalloc_realloc(reporter);
72 }
73
74 constexpr int static kStackPreallocCount = 10;
75
76 // Ensures the containers in SkTemplates.h all have a consistent api.
77 template<typename TContainer, typename TCount>
test_container_apis(skiatest::Reporter * reporter)78 static void test_container_apis(skiatest::Reporter* reporter) {
79 REPORTER_ASSERT(reporter, !TContainer((TCount)0).get());
80 REPORTER_ASSERT(reporter, TContainer((TCount)1).get());
81 REPORTER_ASSERT(reporter, TContainer((TCount)kStackPreallocCount).get());
82 REPORTER_ASSERT(reporter, TContainer((TCount)kStackPreallocCount + 1).get());
83
84 TContainer container;
85 // The default constructor may or may not init to empty, depending on the type of container.
86
87 container.reset((TCount)1);
88 REPORTER_ASSERT(reporter, container.get());
89
90 container.reset((TCount)kStackPreallocCount);
91 REPORTER_ASSERT(reporter, container.get());
92
93 container.reset((TCount)kStackPreallocCount + 1);
94 REPORTER_ASSERT(reporter, container.get());
95
96 container.reset((TCount)0);
97 REPORTER_ASSERT(reporter, !container.get());
98 }
99
DEF_TEST(TemplateContainerAPIs,reporter)100 DEF_TEST(TemplateContainerAPIs, reporter) {
101 test_container_apis<SkAutoTArray<int>, int>(reporter);
102 test_container_apis<SkAutoSTArray<kStackPreallocCount, int>, int>(reporter);
103 test_container_apis<SkAutoTMalloc<int>, size_t>(reporter);
104 test_container_apis<SkAutoSTMalloc<kStackPreallocCount, int>, size_t>(reporter);
105 }
106
107 // Ensures that realloc(0) results in a null pointer.
test_realloc_to_zero(skiatest::Reporter * reporter)108 template<typename TAutoMalloc> static void test_realloc_to_zero(skiatest::Reporter* reporter) {
109 TAutoMalloc autoMalloc(kStackPreallocCount);
110 REPORTER_ASSERT(reporter, autoMalloc.get());
111
112 autoMalloc.realloc(0);
113 REPORTER_ASSERT(reporter, !autoMalloc.get());
114
115 autoMalloc.realloc(kStackPreallocCount + 1);
116 REPORTER_ASSERT(reporter, autoMalloc.get());
117
118 autoMalloc.realloc(0);
119 REPORTER_ASSERT(reporter, !autoMalloc.get());
120
121 autoMalloc.realloc(kStackPreallocCount);
122 REPORTER_ASSERT(reporter, autoMalloc.get());
123 }
124
DEF_TEST(AutoReallocToZero,reporter)125 DEF_TEST(AutoReallocToZero, reporter) {
126 test_realloc_to_zero<SkAutoTMalloc<int> >(reporter);
127 test_realloc_to_zero<SkAutoSTMalloc<kStackPreallocCount, int> >(reporter);
128 }
129
DEF_TEST(SkAutoTMallocSelfMove,r)130 DEF_TEST(SkAutoTMallocSelfMove, r) {
131 #if defined(__clang__)
132 #pragma clang diagnostic push
133 #pragma clang diagnostic ignored "-Wself-move"
134 #endif
135
136 SkAutoTMalloc<int> foo(20);
137 REPORTER_ASSERT(r, foo.get());
138
139 foo = std::move(foo);
140 REPORTER_ASSERT(r, foo.get());
141
142 #if defined(__clang__)
143 #pragma clang diagnostic pop
144 #endif
145 }
146