w

2 files changed, 14 insertions, 3 deletions

diff --git a/src/handle-page.inl b/src/handle-page.inl
index 09d351ac..fbd28043 100644
--- a/src/handle-page.inl
+++ b/src/handle-page.inl
@@ -56,6 +56,7 @@ void Page<Obj, PageSize>::deallocate(Handle<Obj, PageSize> obj)
     fm_assert(obj.counter == ctr);
     item.next = first_free;
     used_count--;
+    used_map.set(index, false);
     first_free = obj.index;
 }
 
diff --git a/test/handle.cpp b/test/handle.cpp
index 2198281c..cbec8cac 100644
--- a/test/handle.cpp
+++ b/test/handle.cpp
@@ -32,9 +32,19 @@ namespace {
 void test_page1()
 {
     Page page{start_index};
-    auto& item = page.allocate();
-    fm_assert(item.handle == Handle{start_index});
-    page.deallocate(item.handle);
+    auto& item0 = page.allocate();
+    auto handle0 = item0.handle;
+    fm_assert(item0.handle == Handle{start_index});
+    page.deallocate(item0.handle);
+
+    auto& item1 = page.allocate();
+    auto& item2 = page.allocate();
+    fm_assert(item1.handle.index == start_index || item2.handle.index == start_index);
+    fm_assert(item1.handle.index != item2.handle.index);
+    fm_assert(item1.handle.counter != item2.handle.counter);
+    fm_assert(int{item1.handle.counter != handle0.counter} + int{item2.handle.counter != handle0.counter} == 1);
+    page.deallocate(item2.handle);
+    page.deallocate(item1.handle);
 }
 } // namespace