projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| f427ee49 A |
1 | // |
| 2 | // Tests for | |
| 3 | // void swap(safe_allocation& a, safe_allocation& b); | |
| 4 | // | |
| 5 | ||
| 6 | #include <libkern/c++/safe_allocation.h> | |
| 7 | #include <darwintest.h> | |
| 8 | #include "test_utils.h" | |
| 9 | ||
| 10 | struct T { | |
| 11 | int i; | |
| 12 | }; | |
| 13 | ||
| 14 | template <typename T> | |
| 15 | static void | |
| 16 | tests() | |
| 17 | { | |
| 18 | // Swap non-null with non-null | |
| 19 | { | |
| 20 | tracked_safe_allocation<T> a(10, libkern::allocate_memory); | |
| 21 | tracked_safe_allocation<T> b(20, libkern::allocate_memory); | |
| 22 | T* a_mem = a.data(); | |
| 23 | T* b_mem = b.data(); | |
| 24 | tracking_allocator::reset(); | |
| 25 | ||
| 26 | swap(a, b); // ADL call | |
| 27 | ||
| 28 | CHECK(!tracking_allocator::did_allocate); | |
| 29 | CHECK(!tracking_allocator::did_deallocate); | |
| 30 | CHECK(a.data() == b_mem); | |
| 31 | CHECK(b.data() == a_mem); | |
| 32 | CHECK(a.size() == 20); | |
| 33 | CHECK(b.size() == 10); | |
| 34 | } | |
| 35 | ||
| 36 | // Swap non-null with null | |
| 37 | { | |
| 38 | tracked_safe_allocation<T> a(10, libkern::allocate_memory); | |
| 39 | tracked_safe_allocation<T> b = nullptr; | |
| 40 | T* a_mem = a.data(); | |
| 41 | tracking_allocator::reset(); | |
| 42 | ||
| 43 | swap(a, b); // ADL call | |
| 44 | ||
| 45 | CHECK(!tracking_allocator::did_allocate); | |
| 46 | CHECK(!tracking_allocator::did_deallocate); | |
| 47 | CHECK(a.data() == nullptr); | |
| 48 | CHECK(b.data() == a_mem); | |
| 49 | CHECK(a.size() == 0); | |
| 50 | CHECK(b.size() == 10); | |
| 51 | } | |
| 52 | ||
| 53 | // Swap null with non-null | |
| 54 | { | |
| 55 | tracked_safe_allocation<T> a = nullptr; | |
| 56 | tracked_safe_allocation<T> b(20, libkern::allocate_memory); | |
| 57 | T* b_mem = b.data(); | |
| 58 | tracking_allocator::reset(); | |
| 59 | ||
| 60 | swap(a, b); // ADL call | |
| 61 | ||
| 62 | CHECK(!tracking_allocator::did_allocate); | |
| 63 | CHECK(!tracking_allocator::did_deallocate); | |
| 64 | CHECK(a.data() == b_mem); | |
| 65 | CHECK(b.data() == nullptr); | |
| 66 | CHECK(a.size() == 20); | |
| 67 | CHECK(b.size() == 0); | |
| 68 | } | |
| 69 | ||
| 70 | // Swap null with null | |
| 71 | { | |
| 72 | tracked_safe_allocation<T> a = nullptr; | |
| 73 | tracked_safe_allocation<T> b = nullptr; | |
| 74 | tracking_allocator::reset(); | |
| 75 | ||
| 76 | swap(a, b); // ADL call | |
| 77 | ||
| 78 | CHECK(!tracking_allocator::did_allocate); | |
| 79 | CHECK(!tracking_allocator::did_deallocate); | |
| 80 | CHECK(a.data() == nullptr); | |
| 81 | CHECK(b.data() == nullptr); | |
| 82 | CHECK(a.size() == 0); | |
| 83 | CHECK(b.size() == 0); | |
| 84 | } | |
| 85 | ||
| 86 | // Swap with self | |
| 87 | { | |
| 88 | tracked_safe_allocation<T> a(10, libkern::allocate_memory); | |
| 89 | T* a_mem = a.data(); | |
| 90 | tracking_allocator::reset(); | |
| 91 | ||
| 92 | swap(a, a); // ADL call | |
| 93 | ||
| 94 | CHECK(!tracking_allocator::did_allocate); | |
| 95 | CHECK(!tracking_allocator::did_deallocate); | |
| 96 | CHECK(a.data() == a_mem); | |
| 97 | CHECK(a.size() == 10); | |
| 98 | } | |
| 99 | } | |
| 100 | ||
| 101 | T_DECL(swap, "safe_allocation.swap") { | |
| 102 | tests<T>(); | |
| 103 | tests<T const>(); | |
| 104 | } |