tests/intrusive_shared_ptr_src/operator.bool.cpp

   1 //
   2 // Tests for
   3 //      explicit constexpr operator bool() const noexcept;
   4 //
   5
   6 #include <libkern/c++/intrusive_shared_ptr.h>
   7 #include <type_traits>
   8 #include <darwintest.h>
   9 #include "test_policy.h"
  10
  11 struct T {
  12         int i;
  13 };
  14
  15 template <typename T>
  16 static void
  17 tests()
  18 {
  19         T obj{3};
  20
  21         {
  22                 test_shared_ptr<T> const ptr(&obj, libkern::no_retain);
  23                 CHECK(static_cast<bool>(ptr));
  24                 if (ptr) {
  25                 } else {
  26                         CHECK(false);
  27                 }
  28         }
  29
  30         {
  31                 test_shared_ptr<T> const ptr = nullptr;
  32                 CHECK(!static_cast<bool>(ptr));
  33                 if (!ptr) {
  34                 } else {
  35                         CHECK(false);
  36                 }
  37         }
  38
  39         static_assert(!std::is_convertible_v<test_shared_ptr<T>, bool>);
  40 }
  41
  42 T_DECL(operator_bool, "intrusive_shared_ptr.operator.bool") {
  43         tests<T>();
  44         tests<T const>();
  45 }