ladybird/AK/Tests/TestNeverDestroyed.cpp
Brian Gianforcaro 1682f0b760 Everything: Move to SPDX license identifiers in all files.
SPDX License Identifiers are a more compact / standardized
way of representing file license information.

See: https://spdx.dev/resources/use/#identifiers

This was done with the `ambr` search and replace tool.

 ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
2021-04-22 11:22:27 +02:00

75 lines
1.3 KiB
C++

/*
* Copyright (c) 2020, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/TestSuite.h>
#include <AK/NeverDestroyed.h>
#include <AK/StdLibExtras.h>
struct Counter {
Counter() = default;
~Counter() { ++num_destroys; }
Counter(const Counter&)
{
++num_copies;
}
Counter(Counter&&) { ++num_moves; }
int num_copies {};
int num_moves {};
int num_destroys {};
};
TEST_CASE(should_construct_by_copy)
{
Counter c {};
AK::NeverDestroyed<Counter> n { c };
EXPECT_EQ(1, n->num_copies);
EXPECT_EQ(0, n->num_moves);
}
TEST_CASE(should_construct_by_move)
{
Counter c {};
AK::NeverDestroyed<Counter> n { move(c) };
EXPECT_EQ(0, n->num_copies);
EXPECT_EQ(1, n->num_moves);
}
TEST_CASE(should_not_destroy)
{
Counter* c = nullptr;
{
AK::NeverDestroyed<Counter> n {};
c = &n.get();
}
EXPECT_EQ(0, c->num_destroys);
}
TEST_CASE(should_provide_dereference_operator)
{
AK::NeverDestroyed<Counter> n {};
EXPECT_EQ(0, n->num_destroys);
}
TEST_CASE(should_provide_indirection_operator)
{
AK::NeverDestroyed<Counter> n {};
EXPECT_EQ(0, (*n).num_destroys);
}
TEST_CASE(should_provide_basic_getter)
{
AK::NeverDestroyed<Counter> n {};
EXPECT_EQ(0, n.get().num_destroys);
}
TEST_MAIN(NeverDestroyed)