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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
29#include <AK/String.h>
30
31TEST_CASE(construct_empty)
32{
33 EXPECT(StringView().is_null());
34 EXPECT(StringView().is_empty());
35 EXPECT(!StringView().characters_without_null_termination());
36 EXPECT_EQ(StringView().length(), 0u);
37}
38
39TEST_CASE(view_literal)
40{
41 const char* truth = "cats rule dogs drool";
42 StringView view(truth);
43 EXPECT_EQ(view.is_null(), false);
44 EXPECT_EQ(view.characters_without_null_termination(), truth);
45 EXPECT_EQ(view, view);
46 EXPECT_EQ(view, truth);
47}
48
49TEST_CASE(compare_views)
50{
51 String foo1 = "foo";
52 String foo2 = "foo";
53 auto view1 = foo1.view();
54 auto view2 = foo2.view();
55
56 EXPECT_EQ(view1, view2);
57 EXPECT_EQ(view1, foo1);
58 EXPECT_EQ(view1, foo2);
59 EXPECT_EQ(view1, "foo");
60}
61
62TEST_CASE(starts_with)
63{
64 String test_string = "ABCDEF";
65 StringView test_string_view = test_string.view();
66 EXPECT(test_string_view.starts_with('A'));
67 EXPECT(!test_string_view.starts_with('B'));
68 EXPECT(test_string_view.starts_with("AB"));
69 EXPECT(test_string_view.starts_with("ABCDEF"));
70 EXPECT(!test_string_view.starts_with("DEF"));
71}
72
73TEST_CASE(ends_with)
74{
75 String test_string = "ABCDEF";
76 StringView test_string_view = test_string.view();
77 EXPECT(test_string_view.ends_with("DEF"));
78 EXPECT(test_string_view.ends_with('F'));
79 EXPECT(!test_string_view.ends_with('E'));
80 EXPECT(test_string_view.ends_with("ABCDEF"));
81 EXPECT(!test_string_view.ends_with("ABCDE"));
82 EXPECT(!test_string_view.ends_with("ABCDEFG"));
83}
84
85TEST_CASE(lines)
86{
87 String test_string = "a\nb\r\nc\rd";
88 StringView test_string_view = test_string.view();
89 Vector<StringView> test_string_vector = test_string_view.lines();
90 EXPECT_EQ(test_string_vector.size(), 4u);
91 EXPECT(test_string_vector.at(0) == String("a"));
92 EXPECT(test_string_vector.at(1) == String("b"));
93 EXPECT(test_string_vector.at(2) == String("c"));
94 EXPECT(test_string_vector.at(3) == String("d"));
95
96 test_string = "```\nHello there\r\nHello there\n```";
97 test_string_view = test_string.view();
98 test_string_vector = test_string_view.lines();
99 EXPECT_EQ(test_string_vector.size(), 4u);
100 EXPECT(test_string_vector.at(0) == String("```"));
101 EXPECT(test_string_vector.at(1) == String("Hello there"));
102 EXPECT(test_string_vector.at(2) == String("Hello there"));
103 EXPECT(test_string_vector.at(3) == String("```"));
104
105 test_string = "\n\n\n";
106 test_string_view = test_string.view();
107 test_string_vector = test_string_view.lines();
108 EXPECT_EQ(test_string_vector.size(), 3u);
109 EXPECT_EQ(test_string_vector.at(0).is_empty(), true);
110 EXPECT_EQ(test_string_vector.at(1).is_empty(), true);
111 EXPECT_EQ(test_string_vector.at(2).is_empty(), true);
112}
113
114TEST_MAIN(StringView)