tests/safe_allocation_src/size.cpp

   1 //
   2 // Tests for
   3 //      size_t size() const;
   4 //
   5
   6 #include <libkern/c++/safe_allocation.h>
   7 #include <darwintest.h>
   8 #include "test_utils.h"
   9 #include <cstddef>
  10 #include <type_traits>
  11 #include <utility>
  12
  13 struct T {
  14         int i;
  15 };
  16
  17 template <typename T>
  18 static void
  19 tests()
  20 {
  21         {
  22                 test_safe_allocation<T> const array(10, libkern::allocate_memory);
  23                 CHECK(array.size() == 10);
  24         }
  25         {
  26                 T* memory = reinterpret_cast<T*>(malloc_allocator::allocate(10 * sizeof(T)));
  27                 test_safe_allocation<T> const array(memory, 10, libkern::adopt_memory);
  28                 CHECK(array.size() == 10);
  29         }
  30         {
  31                 test_safe_allocation<T> const array(nullptr, 0, libkern::adopt_memory);
  32                 CHECK(array.size() == 0);
  33         }
  34         {
  35                 test_safe_allocation<T> const array;
  36                 CHECK(array.size() == 0);
  37         }
  38
  39         {
  40                 using Size = decltype(std::declval<test_safe_allocation<T> const&>().size());
  41                 static_assert(std::is_same_v<Size, std::size_t>);
  42         }
  43 }
  44
  45 T_DECL(size, "safe_allocation.size") {
  46         tests<T>();
  47         tests<T const>();
  48 }