77     node_type nh;  in test_node_handle()  local
78     REQUIRE_MESSAGE(nh.empty(), "Node handle: node_type object is not empty after default ctor");  in test_node_handle()
84     nh = test_table.unsafe_extract(test_table.begin());  in test_node_handle()
85 …REQUIRE_MESSAGE(!nh.empty(), "Node handle: node_type object is empty after valid move assignment");  in test_node_handle()
86 …REQUIRE_MESSAGE(nh.get_allocator() == test_table.get_allocator(), "Node handle: node_type object a…  in test_node_handle()
87     REQUIRE_MESSAGE(compare_handle_getters(nh, expected_value),  in test_node_handle()
91     node_type nh2(std::move(nh));  in test_node_handle()
92     REQUIRE_MESSAGE(nh.empty(), "Node handle: moved-from node_type object is not empty");  in test_node_handle()
205     typename Container::node_type nh;  in test_insert_overloads()  local
208     auto result = table_to_insert.insert(hint..., std::move(nh));  in test_insert_overloads()
215     nh = generate_node_handle<Container>(value);  in test_insert_overloads()
217     result = table_to_insert.insert(hint..., std::move(nh));  in test_insert_overloads()
218     REQUIRE_MESSAGE(nh.empty(), "Insert: Not empty node handle after successful insertion");  in test_insert_overloads()
222     nh = generate_node_handle<Container>(value);  in test_insert_overloads()
223     result = table_to_insert.insert(hint..., std::move(nh));  in test_insert_overloads()
228         REQUIRE_MESSAGE(nh.empty(), "Insert: Failed insertion to multitable");  in test_insert_overloads()
230         REQUIRE_MESSAGE(!nh.empty(), "Insert: Empty node handle after failed insertion");  in test_insert_overloads()
231         REQUIRE_MESSAGE(compare_handle_getters(nh, value),  in test_insert_overloads()
250     auto nh = table_for_extract.unsafe_extract(new_key);  in test_extract()  local
251 …REQUIRE_MESSAGE(nh.empty(), "Extract: node handle is not empty after extraction of key which is no…  in test_extract()
258     nh = table_for_extract.unsafe_extract(key);  in test_extract()
259     REQUIRE_MESSAGE(!nh.empty(), "Extract: node handle is empty after successful extraction");  in test_extract()
260 …REQUIRE_MESSAGE(compare_handle_getters(nh, expected_value), "Extract: node handle contains wrong n…  in test_extract()
268     nh = table_for_extract.unsafe_extract(table_for_extract.cbegin());  in test_extract()
269     REQUIRE_MESSAGE(!nh.empty(), "Extract: node handle is empty after successful extraction");  in test_extract()
270 …REQUIRE_MESSAGE(compare_handle_getters(nh, expected_value2), "Extract: node handle contains wrong …  in test_extract()