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Serenity Operating System
1/*
2 * Copyright (c) 2020, Fei Wu <f.eiwu@yahoo.com>
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
29#include <AK/CircularDeque.h>
30#include <AK/StdLibExtras.h>
31#include <AK/String.h>
32
33TEST_CASE(enqueue_begin)
34{
35 CircularDeque<int, 3> ints;
36
37 ints.enqueue_begin(0);
38 EXPECT_EQ(ints.size(), 1u);
39 EXPECT_EQ(ints.first(), 0);
40
41 ints.enqueue_begin(1);
42 EXPECT_EQ(ints.size(), 2u);
43 EXPECT_EQ(ints.first(), 1);
44 EXPECT_EQ(ints.last(), 0);
45
46 ints.enqueue_begin(2);
47 EXPECT_EQ(ints.size(), 3u);
48 EXPECT_EQ(ints.first(), 2);
49 EXPECT_EQ(ints.last(), 0);
50
51 ints.enqueue_begin(3);
52 EXPECT_EQ(ints.size(), 3u);
53 EXPECT_EQ(ints.first(), 3);
54 EXPECT_EQ(ints.at(1), 2);
55 EXPECT_EQ(ints.last(), 1);
56}
57
58TEST_CASE(enqueue_begin_being_moved_from)
59{
60 CircularDeque<String, 2> strings;
61
62 String str{"test"};
63 strings.enqueue_begin(move(str));
64 EXPECT(str.is_null());
65}
66
67TEST_CASE(deque_end)
68{
69 CircularDeque<int, 3> ints;
70 ints.enqueue(0);
71 ints.enqueue(1);
72 ints.enqueue(2);
73 EXPECT_EQ(ints.size(), 3u);
74
75 EXPECT_EQ(ints.dequeue_end(), 2);
76 EXPECT_EQ(ints.size(), 2u);
77
78 EXPECT_EQ(ints.dequeue_end(), 1);
79 EXPECT_EQ(ints.size(), 1u);
80
81 EXPECT_EQ(ints.dequeue_end(), 0);
82 EXPECT(ints.is_empty());
83}
84
85TEST_MAIN(CircularDeque)