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1 | /* |
2 | * Unit tests for parsing of KEY=VALUE,... strings | |
3 | * | |
4 | * Copyright (C) 2017 Red Hat Inc. | |
5 | * | |
6 | * Authors: | |
7 | * Markus Armbruster <armbru@redhat.com>, | |
8 | * | |
9 | * This work is licensed under the terms of the GNU GPL, version 2 or later. | |
10 | * See the COPYING file in the top-level directory. | |
11 | */ | |
12 | ||
13 | #include "qemu/osdep.h" | |
14 | #include "qapi/error.h" | |
15 | #include "qemu/option.h" | |
16 | ||
17 | static void test_keyval_parse(void) | |
18 | { | |
19 | Error *err = NULL; | |
20 | QDict *qdict, *sub_qdict; | |
21 | char long_key[129]; | |
22 | char *params; | |
23 | ||
24 | /* Nothing */ | |
25 | qdict = keyval_parse("", NULL, &error_abort); | |
26 | g_assert_cmpuint(qdict_size(qdict), ==, 0); | |
27 | QDECREF(qdict); | |
28 | ||
29 | /* Empty key (qemu_opts_parse() accepts this) */ | |
30 | qdict = keyval_parse("=val", NULL, &err); | |
31 | error_free_or_abort(&err); | |
32 | g_assert(!qdict); | |
33 | ||
34 | /* Empty key fragment */ | |
35 | qdict = keyval_parse(".", NULL, &err); | |
36 | error_free_or_abort(&err); | |
37 | g_assert(!qdict); | |
38 | qdict = keyval_parse("key.", NULL, &err); | |
39 | error_free_or_abort(&err); | |
40 | g_assert(!qdict); | |
41 | ||
42 | /* Overlong key */ | |
43 | memset(long_key, 'a', 127); | |
44 | long_key[127] = 'z'; | |
45 | long_key[128] = 0; | |
46 | params = g_strdup_printf("k.%s=v", long_key); | |
47 | qdict = keyval_parse(params + 2, NULL, &err); | |
48 | error_free_or_abort(&err); | |
49 | g_assert(!qdict); | |
50 | ||
51 | /* Overlong key fragment */ | |
52 | qdict = keyval_parse(params, NULL, &err); | |
53 | error_free_or_abort(&err); | |
54 | g_assert(!qdict); | |
55 | g_free(params); | |
56 | ||
57 | /* Long key (qemu_opts_parse() accepts and truncates silently) */ | |
58 | params = g_strdup_printf("k.%s=v", long_key + 1); | |
59 | qdict = keyval_parse(params + 2, NULL, &error_abort); | |
60 | g_assert_cmpuint(qdict_size(qdict), ==, 1); | |
61 | g_assert_cmpstr(qdict_get_try_str(qdict, long_key + 1), ==, "v"); | |
62 | QDECREF(qdict); | |
63 | ||
64 | /* Long key fragment */ | |
65 | qdict = keyval_parse(params, NULL, &error_abort); | |
66 | g_assert_cmpuint(qdict_size(qdict), ==, 1); | |
67 | sub_qdict = qdict_get_qdict(qdict, "k"); | |
68 | g_assert(sub_qdict); | |
69 | g_assert_cmpuint(qdict_size(sub_qdict), ==, 1); | |
70 | g_assert_cmpstr(qdict_get_try_str(sub_qdict, long_key + 1), ==, "v"); | |
71 | QDECREF(qdict); | |
72 | g_free(params); | |
73 | ||
74 | /* Multiple keys, last one wins */ | |
75 | qdict = keyval_parse("a=1,b=2,,x,a=3", NULL, &error_abort); | |
76 | g_assert_cmpuint(qdict_size(qdict), ==, 2); | |
77 | g_assert_cmpstr(qdict_get_try_str(qdict, "a"), ==, "3"); | |
78 | g_assert_cmpstr(qdict_get_try_str(qdict, "b"), ==, "2,x"); | |
79 | QDECREF(qdict); | |
80 | ||
81 | /* Even when it doesn't in qemu_opts_parse() */ | |
82 | qdict = keyval_parse("id=foo,id=bar", NULL, &error_abort); | |
83 | g_assert_cmpuint(qdict_size(qdict), ==, 1); | |
84 | g_assert_cmpstr(qdict_get_try_str(qdict, "id"), ==, "bar"); | |
85 | QDECREF(qdict); | |
86 | ||
87 | /* Dotted keys */ | |
88 | qdict = keyval_parse("a.b.c=1,a.b.c=2,d=3", NULL, &error_abort); | |
89 | g_assert_cmpuint(qdict_size(qdict), ==, 2); | |
90 | sub_qdict = qdict_get_qdict(qdict, "a"); | |
91 | g_assert(sub_qdict); | |
92 | g_assert_cmpuint(qdict_size(sub_qdict), ==, 1); | |
93 | sub_qdict = qdict_get_qdict(sub_qdict, "b"); | |
94 | g_assert(sub_qdict); | |
95 | g_assert_cmpuint(qdict_size(sub_qdict), ==, 1); | |
96 | g_assert_cmpstr(qdict_get_try_str(sub_qdict, "c"), ==, "2"); | |
97 | g_assert_cmpstr(qdict_get_try_str(qdict, "d"), ==, "3"); | |
98 | QDECREF(qdict); | |
99 | ||
100 | /* Inconsistent dotted keys */ | |
101 | qdict = keyval_parse("a.b=1,a=2", NULL, &err); | |
102 | error_free_or_abort(&err); | |
103 | g_assert(!qdict); | |
104 | qdict = keyval_parse("a.b=1,a.b.c=2", NULL, &err); | |
105 | error_free_or_abort(&err); | |
106 | g_assert(!qdict); | |
107 | ||
108 | /* Trailing comma is ignored */ | |
109 | qdict = keyval_parse("x=y,", NULL, &error_abort); | |
110 | g_assert_cmpuint(qdict_size(qdict), ==, 1); | |
111 | g_assert_cmpstr(qdict_get_try_str(qdict, "x"), ==, "y"); | |
112 | QDECREF(qdict); | |
113 | ||
114 | /* Except when it isn't */ | |
115 | qdict = keyval_parse(",", NULL, &err); | |
116 | error_free_or_abort(&err); | |
117 | g_assert(!qdict); | |
118 | ||
119 | /* Value containing ,id= not misinterpreted as qemu_opts_parse() does */ | |
120 | qdict = keyval_parse("x=,,id=bar", NULL, &error_abort); | |
121 | g_assert_cmpuint(qdict_size(qdict), ==, 1); | |
122 | g_assert_cmpstr(qdict_get_try_str(qdict, "x"), ==, ",id=bar"); | |
123 | QDECREF(qdict); | |
124 | ||
125 | /* Anti-social ID is left to caller (qemu_opts_parse() rejects it) */ | |
126 | qdict = keyval_parse("id=666", NULL, &error_abort); | |
127 | g_assert_cmpuint(qdict_size(qdict), ==, 1); | |
128 | g_assert_cmpstr(qdict_get_try_str(qdict, "id"), ==, "666"); | |
129 | QDECREF(qdict); | |
130 | ||
131 | /* Implied value not supported (unlike qemu_opts_parse()) */ | |
132 | qdict = keyval_parse("an,noaus,noaus=", NULL, &err); | |
133 | error_free_or_abort(&err); | |
134 | g_assert(!qdict); | |
135 | ||
136 | /* Implied value, key "no" (qemu_opts_parse(): negated empty key) */ | |
137 | qdict = keyval_parse("no", NULL, &err); | |
138 | error_free_or_abort(&err); | |
139 | g_assert(!qdict); | |
140 | ||
141 | /* Implied key */ | |
142 | qdict = keyval_parse("an,aus=off,noaus=", "implied", &error_abort); | |
143 | g_assert_cmpuint(qdict_size(qdict), ==, 3); | |
144 | g_assert_cmpstr(qdict_get_try_str(qdict, "implied"), ==, "an"); | |
145 | g_assert_cmpstr(qdict_get_try_str(qdict, "aus"), ==, "off"); | |
146 | g_assert_cmpstr(qdict_get_try_str(qdict, "noaus"), ==, ""); | |
147 | QDECREF(qdict); | |
148 | ||
149 | /* Implied dotted key */ | |
150 | qdict = keyval_parse("val", "eins.zwei", &error_abort); | |
151 | g_assert_cmpuint(qdict_size(qdict), ==, 1); | |
152 | sub_qdict = qdict_get_qdict(qdict, "eins"); | |
153 | g_assert(sub_qdict); | |
154 | g_assert_cmpuint(qdict_size(sub_qdict), ==, 1); | |
155 | g_assert_cmpstr(qdict_get_try_str(sub_qdict, "zwei"), ==, "val"); | |
156 | QDECREF(qdict); | |
157 | ||
158 | /* Implied key with empty value (qemu_opts_parse() accepts this) */ | |
159 | qdict = keyval_parse(",", "implied", &err); | |
160 | error_free_or_abort(&err); | |
161 | g_assert(!qdict); | |
162 | ||
163 | /* Likewise (qemu_opts_parse(): implied key with comma value) */ | |
164 | qdict = keyval_parse(",,,a=1", "implied", &err); | |
165 | error_free_or_abort(&err); | |
166 | g_assert(!qdict); | |
167 | ||
168 | /* Empty key is not an implied key */ | |
169 | qdict = keyval_parse("=val", "implied", &err); | |
170 | error_free_or_abort(&err); | |
171 | g_assert(!qdict); | |
172 | } | |
173 | ||
174 | int main(int argc, char *argv[]) | |
175 | { | |
176 | g_test_init(&argc, &argv, NULL); | |
177 | g_test_add_func("/keyval/keyval_parse", test_keyval_parse); | |
178 | g_test_run(); | |
179 | return 0; | |
180 | } |