/* * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org> * * SPDX-License-Identifier: BSD-2-Clause */ #include <LibTest/TestCase.h> #include <AK/CircularQueue.h> #include <AK/String.h> TEST_CASE(basic) { CircularQueue<int, 3> ints; EXPECT(ints.is_empty()); ints.enqueue(1); ints.enqueue(2); ints.enqueue(3); EXPECT_EQ(ints.size(), 3u); ints.enqueue(4); EXPECT_EQ(ints.size(), 3u); EXPECT_EQ(ints.dequeue(), 2); EXPECT_EQ(ints.dequeue(), 3); EXPECT_EQ(ints.dequeue(), 4); EXPECT_EQ(ints.size(), 0u); } TEST_CASE(complex_type) { CircularQueue<String, 2> strings; strings.enqueue("ABC"); strings.enqueue("DEF"); EXPECT_EQ(strings.size(), 2u); strings.enqueue("abc"); strings.enqueue("def"); EXPECT_EQ(strings.dequeue(), "abc"); EXPECT_EQ(strings.dequeue(), "def"); } TEST_CASE(complex_type_clear) { CircularQueue<String, 5> strings; strings.enqueue("xxx"); strings.enqueue("xxx"); strings.enqueue("xxx"); strings.enqueue("xxx"); strings.enqueue("xxx"); EXPECT_EQ(strings.size(), 5u); strings.clear(); EXPECT_EQ(strings.size(), 0u); } struct ConstructorCounter { static unsigned s_num_constructor_calls; ConstructorCounter() { ++s_num_constructor_calls; } }; unsigned ConstructorCounter::s_num_constructor_calls = 0; TEST_CASE(should_not_call_value_type_constructor_when_created) { CircularQueue<ConstructorCounter, 10> queue; EXPECT_EQ(0u, ConstructorCounter::s_num_constructor_calls); }