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Serenity Operating System
1/*
2 * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this
9 * list of conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice,
12 * this list of conditions and the following disclaimer in the documentation
13 * and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
22 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include <AK/TestSuite.h>
28#include <AK/String.h>
29#include <AK/CircularQueue.h>
30
31TEST_CASE(basic)
32{
33 CircularQueue<int, 3> ints;
34 EXPECT(ints.is_empty());
35 ints.enqueue(1);
36 ints.enqueue(2);
37 ints.enqueue(3);
38 EXPECT_EQ(ints.size(), 3u);
39
40 ints.enqueue(4);
41 EXPECT_EQ(ints.size(), 3u);
42 EXPECT_EQ(ints.dequeue(), 2);
43 EXPECT_EQ(ints.dequeue(), 3);
44 EXPECT_EQ(ints.dequeue(), 4);
45 EXPECT_EQ(ints.size(), 0u);
46}
47
48TEST_CASE(complex_type)
49{
50 CircularQueue<String, 2> strings;
51
52 strings.enqueue("ABC");
53 strings.enqueue("DEF");
54
55 EXPECT_EQ(strings.size(), 2u);
56
57 strings.enqueue("abc");
58 strings.enqueue("def");
59
60 EXPECT_EQ(strings.dequeue(), "abc");
61 EXPECT_EQ(strings.dequeue(), "def");
62}
63
64TEST_CASE(complex_type_clear)
65{
66 CircularQueue<String, 5> strings;
67 strings.enqueue("xxx");
68 strings.enqueue("xxx");
69 strings.enqueue("xxx");
70 strings.enqueue("xxx");
71 strings.enqueue("xxx");
72 EXPECT_EQ(strings.size(), 5u);
73 strings.clear();
74 EXPECT_EQ(strings.size(), 0u);
75}
76
77TEST_MAIN(CircularQueue)