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test/util/TestIntrusiveList: add test for clear_and_dispose() with modifying disposer

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Max Kellermann 2024-04-23 20:33:10 +02:00 committed by Max Kellermann
parent 56d4784b11
commit c8ed28e9c6
1 changed files with 93 additions and 0 deletions
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93
test/util/TestIntrusiveList.cxx
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@ -279,3 +279,96 @@ TEST(IntrusiveList, Sort)
ASSERT_EQ(&*std::next(list.begin(), 1), &items[2]); ASSERT_EQ(&*std::next(list.begin(), 1), &items[2]);
ASSERT_EQ(&*std::next(list.begin(), 2), &items[4]); ASSERT_EQ(&*std::next(list.begin(), 2), &items[4]);
} }
/**
* Call clear_and_dispose(), and let the disposer unlink the last
* item.
*/
TEST(IntrusiveList, ClearDisposeUnlink)
{
using Item = CharItem<IntrusiveHookMode::TRACK>;
Item a{'a'}, b{'b'};
bool a_disposed = false;
EXPECT_FALSE(a.is_linked());
EXPECT_FALSE(b.is_linked());
IntrusiveList<Item> list;
list.push_back(a);
list.push_back(b);
EXPECT_TRUE(a.is_linked());
EXPECT_TRUE(b.is_linked());
list.clear_and_dispose([&](Item *item){
EXPECT_FALSE(a.is_linked());
EXPECT_TRUE(b.is_linked());
EXPECT_EQ(item, &a);
EXPECT_FALSE(a_disposed);
a_disposed = true;
b.unlink();
});
EXPECT_TRUE(a_disposed);
EXPECT_TRUE(list.empty());
}
/**
* Call clear_and_dispose(), and let the disposer push a new item.
*/
TEST(IntrusiveList, ClearDisposePush)
{
using Item = CharItem<IntrusiveHookMode::TRACK>;
Item a{'a'}, b{'b'};
bool a_disposed = false, b_added = false, b_disposed = false;
EXPECT_FALSE(a.is_linked());
EXPECT_FALSE(b.is_linked());
IntrusiveList<Item> list;
list.push_back(a);
EXPECT_TRUE(a.is_linked());
EXPECT_FALSE(b.is_linked());
list.clear_and_dispose([&](Item *item){
if (!a_disposed) {
EXPECT_EQ(item, &a);
EXPECT_FALSE(a.is_linked());
EXPECT_FALSE(b.is_linked());
EXPECT_FALSE(a_disposed);
EXPECT_FALSE(b_disposed);
EXPECT_FALSE(b_added);
a_disposed = true;
list.push_back(b);
EXPECT_FALSE(a.is_linked());
EXPECT_TRUE(b.is_linked());
b_added = true;
} else if (!b_disposed) {
EXPECT_TRUE(b_added);
EXPECT_EQ(item, &b);
EXPECT_FALSE(a.is_linked());
EXPECT_FALSE(b.is_linked());
EXPECT_TRUE(a_disposed);
EXPECT_FALSE(b_disposed);
b_disposed = true;
} else {
FAIL();
}
});
EXPECT_TRUE(a_disposed);
EXPECT_TRUE(b_added);
EXPECT_TRUE(b_disposed);
EXPECT_TRUE(list.empty());
}