FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/tests/hashtable.c
Date: 2025-06-06 23:02:10
Exec Total Coverage
Lines: 49 49 100.0%
Functions: 1 1 100.0%
Branches: 22 44 50.0%

Line Branch Exec Source
1 /*
2 * Generic hashtable tests
3 * Copyright (C) 2024 Emma Worley <emma@emma.gg>
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 #include <stdint.h>
23
24 #include "libavutil/avassert.h"
25 #include "libavcodec/hashtable.h"
26
27 1 int main(void)
28 {
29 struct FFHashtableContext *ctx;
30 uint8_t k;
31 uint64_t v;
32
33 // impossibly large allocation should fail gracefully
34
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1 av_assert0(ff_hashtable_alloc(&ctx, -1, -1, -1) < 0);
35
36 // hashtable can store up to 3 uint8_t->uint64_t entries
37
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1 av_assert0(!ff_hashtable_alloc(&ctx, sizeof(k), sizeof(v), 3));
38
39 // unsuccessful deletes return 0
40 1 k = 1;
41
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1 av_assert0(!ff_hashtable_delete(ctx, &k));
42
43 // unsuccessful gets return 0
44 1 k = 1;
45
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1 av_assert0(!ff_hashtable_get(ctx, &k, &v));
46
47 // successful sets returns 1
48 1 k = 1;
49 1 v = 1;
50
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1 av_assert0(ff_hashtable_set(ctx, &k, &v));
51
52 // get should now contain 1
53 1 k = 1;
54 1 v = 0;
55
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1 av_assert0(ff_hashtable_get(ctx, &k, &v));
56
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1 av_assert0(v == 1);
57
58 // updating sets should return 1
59 1 k = 1;
60 1 v = 2;
61
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1 av_assert0(ff_hashtable_set(ctx, &k, &v));
62
63 // get should now contain 2
64 1 k = 1;
65 1 v = 0;
66
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1 av_assert0(ff_hashtable_get(ctx, &k, &v));
67
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1 av_assert0(v == 2);
68
69 // fill the table
70 1 k = 2;
71 1 v = 2;
72
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1 av_assert0(ff_hashtable_set(ctx, &k, &v));
73 1 k = 3;
74 1 v = 3;
75
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1 av_assert0(ff_hashtable_set(ctx, &k, &v));
76
77 // inserting sets on a full table should return 0
78 1 k = 4;
79 1 v = 4;
80
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1 av_assert0(!ff_hashtable_set(ctx, &k, &v));
81
82 // updating sets on a full table should return 1
83 1 k = 1;
84 1 v = 4;
85
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1 av_assert0(ff_hashtable_set(ctx, &k, &v));
86 1 v = 0;
87
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1 av_assert0(ff_hashtable_get(ctx, &k, &v));
88
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1 av_assert0(v == 4);
89
90 // successful deletes should return 1
91 1 k = 1;
92
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1 av_assert0(ff_hashtable_delete(ctx, &k));
93
94 // get should now return 0
95
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1 av_assert0(!ff_hashtable_get(ctx, &k, &v));
96
97 // sanity check remaining keys
98 1 k = 2;
99 1 v = 0;
100
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1 av_assert0(ff_hashtable_get(ctx, &k, &v));
101
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1 av_assert0(v == 2);
102 1 k = 3;
103 1 v = 0;
104
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1 av_assert0(ff_hashtable_get(ctx, &k, &v));
105
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1 av_assert0(v == 3);
106
107 1 ff_hashtable_freep(&ctx);
108
109 1 return 0;
110 }
111