1 // Copyright 2016 The Fuchsia Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include <fbl/intrusive_container_utils.h>
6 #include <fbl/tests/intrusive_containers/objects.h>
7 #include <unittest/unittest.h>
8
9 namespace fbl {
10 namespace tests {
11 namespace intrusive_containers {
12
13 size_t TestObjBase::live_obj_count_ = 0;
14
15 template <typename T>
swap_test(const T initial_a,const T initial_b)16 bool swap_test(const T initial_a, const T initial_b) {
17 BEGIN_HELPER;
18
19 // Starting A and B need to be different in order for us to know that swap
20 // worked.
21 EXPECT_NE(::memcmp(&initial_a, &initial_b, sizeof(T)), 0);
22
23 T a = initial_a;
24 T b = initial_b;
25 ::fbl::internal::Swap(a, b);
26
27 EXPECT_EQ(::memcmp(&a, &initial_b, sizeof(T)), 0);
28 EXPECT_EQ(::memcmp(&b, &initial_a, sizeof(T)), 0);
29
30 END_HELPER;
31 }
32
swap_test()33 bool swap_test() {
34 BEGIN_TEST;
35
36 struct SimpleSmallStruct { uint8_t a, b; };
37 struct SimpleBigStruct { uint32_t a, b; };
38 struct SimpleHugeStruct { uint64_t a, b; };
39
40 EXPECT_TRUE(swap_test<char>('a', 'b'));
41 EXPECT_TRUE(swap_test<int8_t>(-5, 10));
42 EXPECT_TRUE(swap_test<uint8_t>(5, 10));
43 EXPECT_TRUE(swap_test<int16_t>(-12345, 12345));
44 EXPECT_TRUE(swap_test<uint16_t>(12345, 54321));
45 EXPECT_TRUE(swap_test<int32_t>(-1234567890, 123456789));
46 EXPECT_TRUE(swap_test<uint32_t>(1234567890, 987654321));
47 EXPECT_TRUE(swap_test<int64_t>(-12345678901234567, 12345678901234567));
48 EXPECT_TRUE(swap_test<uint64_t>(12345678901234567, 98765432109876543));
49 EXPECT_TRUE(swap_test<float>(-0.1234567f, 0.7654321f));
50 EXPECT_TRUE(swap_test<double>(-0.12345678901234567890, 0.98765432109876543210));
51 EXPECT_TRUE(swap_test<SimpleSmallStruct>({ 5, 4 }, { 2, 9 }));
52 EXPECT_TRUE(swap_test<SimpleBigStruct>({ 5, 4 }, { 2, 9 }));
53 #if TEST_WILL_NOT_COMPILE || 0
54 EXPECT_TRUE(swap_test<SimpleHugeStruct>({ 5, 4 }, { 2, 9 }));
55 #endif
56
57 SimpleBigStruct a = {};
58 SimpleBigStruct b = {};
59 EXPECT_TRUE(swap_test<void*>(&a, &b));
60 EXPECT_TRUE(swap_test<SimpleBigStruct*>(&a, &b));
61
62 END_TEST;
63 }
64
65
66 BEGIN_TEST_CASE(container_utils_tests)
67 RUN_NAMED_TEST("swap test", swap_test)
68 END_TEST_CASE(container_utils_tests)
69
70 } // namespace intrusive_containers
71 } // namespace tests
72 } // namespace fbl
73