1 files changed, 192 insertions, 0 deletions
diff --git a/test/bptr.cpp b/test/bptr.cpp
index 6f823344..55b10fe0 100644
--- a/test/bptr.cpp
+++ b/test/bptr.cpp
@@ -1,6 +1,7 @@
 #include "app.hpp"
 #include "compat/assert.hpp"
 #include "compat/borrowed-ptr.inl"
+#include <array>
 
 namespace floormat {
 
@@ -94,12 +95,203 @@ void test2()
     fm_assert(A_alive == 0);
 }
 
+void test3()
+{
+    A_total = 0; A_alive = 0;
+
+    auto p1 = bptr<A>{InPlace, 3};
+    (void)p1;
+    auto p2 = p1;
+    auto p3 = p2;
+
+    fm_assert(p1.use_count() == 3);
+    fm_assert(p1.get());
+    fm_assert(p1.get() == p2.get());
+    fm_assert(p1.get() == p3.get());
+    fm_assert(A_total == 1);
+    fm_assert(A_alive == 1);
+
+    p3 = nullptr; (void)p3;
+    fm_assert(p1.use_count() == 2);
+    p3 = p2;
+    fm_assert(p1.use_count() == 3 && p3->val == 3 && p3->serial == 1 && p2 == p3 && p1 == p3);
+}
+
+void check_empty(const bptr<A>& p)
+{
+    fm_assert(!p);
+    fm_assert(p.use_count() == 0);
+    fm_assert(!p.get());
+}
+
+void check_nonempty(const bptr<A>& p)
+{
+    fm_assert(p);
+    fm_assert(p.use_count() > 0);
+    fm_assert(p.get());
+}
+
+void test4()
+{
+    A_total = 0; A_alive = 0;
+
+    fm_assert(bptr<A>{} == bptr<A>{nullptr});
+    fm_assert(bptr<A>{} == bptr<A>{(A*)nullptr});
+    fm_assert(A_total == 0 && A_alive == 0);
+
+    {
+        auto p1 = bptr<A>{InPlace, 42};
+        auto p2 = bptr<A>{InPlace, 41};
+        auto p3 = bptr<A>{};
+        check_empty(p3);
+        (void)p1.operator=(p1);
+        (void)p2.operator=(p2);
+        fm_assert(p1->val == 42 && p1->serial == 1);
+        fm_assert(p2->val == 41 && p2->serial == 2);
+        fm_assert(A_total == 2);
+        fm_assert(A_alive == 2);
+        check_nonempty(p1);
+        check_nonempty(p2);
+
+        p1.swap(p2);
+        fm_assert(p1->val == 41 && p1->serial == 2);
+        fm_assert(p2->val == 42 && p2->serial == 1);
+        fm_assert(A_total == 2);
+        fm_assert(A_alive == 2);
+        check_nonempty(p1);
+        check_nonempty(p2);
+
+        p1 = nullptr;
+        fm_assert(A_total == 2);
+        fm_assert(A_alive == 1);
+        check_empty(p1);
+        check_nonempty(p2);
+
+        (void)p2;
+        p1 = p2;
+        fm_assert(p1 == p2);
+        fm_assert(A_total == 2);
+        fm_assert(A_alive == 1);
+        check_nonempty(p1);
+        check_nonempty(p2);
+
+        p2 = bptr<A>{(A*)nullptr};
+        check_empty(p2);
+        check_nonempty(p1);
+        fm_assert(A_total == 2);
+        fm_assert(A_alive == 1);
+        p1.reset();
+        fm_assert(A_total == 2);
+        fm_assert(A_alive == 0);
+
+        p1 = p2;
+        p2 = p1;
+        fm_assert(A_total == 2);
+        fm_assert(A_alive == 0);
+    }
+}
+
+void test5()
+{
+    A_total = 0; A_alive = 0;
+    auto p1 = bptr<A>{InPlace, -1};
+    auto p2 = bptr<A>{InPlace, -2};
+    fm_assert(A_total == 2);
+    fm_assert(A_alive == 2);
+    (void)p1;
+
+    auto p3 = p1;
+    fm_assert(p1.use_count() == 2);
+    fm_assert(p2.use_count() == 1);
+    fm_assert(A_total == 2);
+    fm_assert(A_alive == 2);
+    fm_assert(p1->serial == 1 && p1->val == -1);
+    fm_assert(p2->serial == 2 && p2->val == -2);
+    fm_assert(p3->serial == 1 && p3->val == -1);
+
+    p1 = nullptr;
+    fm_assert(!p1.get());
+    fm_assert(p2->serial == 2 && p2->val == -2);
+    fm_assert(p3->serial == 1 && p3->val == -1);
+    fm_assert(A_total == 2);
+    fm_assert(A_alive == 2);
+
+    p2 = nullptr;
+    fm_assert(!p1.get());
+    fm_assert(!p2.get());
+    fm_assert(p3->serial == 1 && p3->val == -1);
+}
+
+void test6()
+{
+    constexpr size_t size = 5;
+    std::array<bptr<A>, size> array;
+    for (auto n = 0u; n < size; n++)
+    {
+        A_total = 0; A_alive = 0;
+        bptr<A> p0;
+        array[0] = bptr<A>{InPlace, 6};
+        for (auto i = 1u; i < size; i++)
+            array[i] = array[i-1];
+        fm_assert(array[0].use_count() == size);
+        fm_assert(A_total == 1 && A_alive == 1);
+        array[(n + 1) % size].reset();
+        array[(n + 2) % size] = bptr<A>((A*)nullptr);
+        array[(n + 3) % size] = move(p0);
+        array[(n + 4) % size].swap(p0);
+        array[(n + 0) % size] = nullptr;
+        p0 = nullptr;
+        for (auto k = 0u; k < size; k++)
+        {
+            for (auto i = 1u; i < size; i++)
+                array[i-1] = array[(i+k) % size];
+            for (auto i = 1u; i < size; i++)
+                check_empty(array[i]);
+        }
+        fm_assert(A_total == 1);
+        fm_assert(A_alive == 0);
+        fm_assert(array == std::array<bptr<A>, size>{});
+    }
+}
+
+void test7()
+{
+    A_total = 0; A_alive = 0;
+    auto p1 = bptr<A>{InPlace, 7};
+    auto p2 = bptr<A>{};
+    p2 = move(p1);
+    fm_assert(A_total == 1 && A_alive == 1);
+    check_empty(p1);
+    check_nonempty(p2);
+
+    p1.reset();
+    check_empty(p1);
+    check_nonempty(p2);
+
+    p1 = move(p2);
+    fm_assert(A_total == 1 && A_alive == 1);
+    check_nonempty(p1);
+    check_empty(p2);
+
+    p1 = move(p2);
+    check_empty(p1);
+    check_empty(p2);
+    fm_assert(A_total == 1 && A_alive == 0);
+
+    A_total = 0; A_alive = 0;
+}
+
 } // namespace
 
 void test_app::test_bptr()
 {
     test1();
     test2();
+    test3();
+    test4();
+    test5();
+    test6();
+    test7();
 }
 
 } // namespace floormat