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Add rehash tests proving that elements are not relocated for node-based containers

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This commit is contained in:
Christian Mazakas
2023-01-16 11:33:09 -08:00
parent 473ed9b88b
commit b60f2ce22c
1 changed files with 39 additions and 1 deletions
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40
test/unordered/rehash_tests.cpp
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@ -437,6 +437,35 @@ namespace rehash_tests {
tracker.compare(x);
}
template <class X>
void rehash_node_stability(X*, test::random_generator generator)
{
typedef typename X::value_type value_type;
std::set<value_type const*> elements;
test::random_values<X> v(1000, generator);
test::ordered<X> tracker;
tracker.insert_range(v.begin(), v.end());
X x(v.begin(), v.end());
typedef typename X::iterator iterator;
for (iterator pos = x.begin(); pos != x.end(); ++pos) {
elements.insert(boost::addressof(*pos));
}
x.rehash(2 * x.bucket_count());
for (iterator pos = x.begin(); pos != x.end(); ++pos) {
if (!BOOST_TEST(
elements.find(boost::addressof(*pos)) != elements.end())) {
break;
}
}
tracker.compare(x);
}
template <class X> void rehash_test1(X*, test::random_generator generator)
{
test::random_values<X> v(1000, generator);
@ -637,7 +666,11 @@ namespace rehash_tests {
((test_set_monotonic)(test_map_monotonic)
(test_node_set_monotonic)(test_node_map_monotonic))(
(default_generator)(limited_range)))
// clang-format on
UNORDERED_TEST(rehash_node_stability,
((int_node_set_ptr)(test_node_map_ptr)
(test_node_set_tracking)(test_node_map_tracking))(
(default_generator)(generate_collisions)(limited_range)))
// clang-format on
#else
boost::unordered_set<int>* int_set_ptr;
boost::unordered_multiset<test::object, test::hash, test::equal_to,
@ -701,6 +734,11 @@ namespace rehash_tests {
UNORDERED_TEST(rehash_stability,
((test_set_monotonic)(test_multiset_monotonic)(test_map_monotonic)(test_multimap_monotonic))(
(default_generator)(limited_range)))
UNORDERED_TEST(rehash_node_stability,
((int_set_ptr)(test_map_ptr)(test_set_tracking)(test_map_tracking)
(test_multiset_ptr)(int_multimap_ptr)
(test_multiset_tracking)(test_multimap_tracking))(
(default_generator)(generate_collisions)(limited_range)))
// clang-format on
#endif
} // namespace rehash_tests