tests/intrusive_shared_ptr_src/dtor.cpp

   1 //
   2 // Tests for
   3 //  ~intrusive_shared_ptr();
   4 //
   5
   6 #include <libkern/c++/intrusive_shared_ptr.h>
   7 #include <darwintest.h>
   8 #include <darwintest_utils.h>
   9 #include "test_policy.h"
  10
  11 struct T { int i; };
  12
  13 T_DECL(dtor, "intrusive_shared_ptr.dtor") {
  14         // Destroy a non-null shared pointer
  15         {
  16                 T obj{0};
  17                 test_policy::retain_count = 3;
  18
  19                 {
  20                         libkern::intrusive_shared_ptr<T, test_policy> ptr(&obj, libkern::no_retain);
  21                         CHECK(test_policy::retain_count == 3);
  22                 }
  23
  24                 CHECK(test_policy::retain_count == 2);
  25         }
  26
  27         // Destroy a null shared pointer
  28         {
  29                 test_policy::retain_count = 3;
  30
  31                 {
  32                         libkern::intrusive_shared_ptr<T, test_policy> ptr = nullptr;
  33                         CHECK(test_policy::retain_count == 3);
  34                 }
  35
  36                 CHECK(test_policy::retain_count == 3); // not decremented
  37         }
  38 }