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[rpmsg/rpmsg.git] / lib / test_uuid.c
1 /*
2  * Test cases for lib/uuid.c module.
3  */
4 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
6 #include <linux/init.h>
7 #include <linux/kernel.h>
8 #include <linux/module.h>
9 #include <linux/string.h>
10 #include <linux/uuid.h>
12 struct test_uuid_data {
13         const char *uuid;
14         guid_t le;
15         uuid_t be;
16 };
18 static const struct test_uuid_data test_uuid_test_data[] = {
19         {
20                 .uuid = "c33f4995-3701-450e-9fbf-206a2e98e576",
21                 .le = GUID_INIT(0xc33f4995, 0x3701, 0x450e, 0x9f, 0xbf, 0x20, 0x6a, 0x2e, 0x98, 0xe5, 0x76),
22                 .be = UUID_INIT(0xc33f4995, 0x3701, 0x450e, 0x9f, 0xbf, 0x20, 0x6a, 0x2e, 0x98, 0xe5, 0x76),
23         },
24         {
25                 .uuid = "64b4371c-77c1-48f9-8221-29f054fc023b",
26                 .le = GUID_INIT(0x64b4371c, 0x77c1, 0x48f9, 0x82, 0x21, 0x29, 0xf0, 0x54, 0xfc, 0x02, 0x3b),
27                 .be = UUID_INIT(0x64b4371c, 0x77c1, 0x48f9, 0x82, 0x21, 0x29, 0xf0, 0x54, 0xfc, 0x02, 0x3b),
28         },
29         {
30                 .uuid = "0cb4ddff-a545-4401-9d06-688af53e7f84",
31                 .le = GUID_INIT(0x0cb4ddff, 0xa545, 0x4401, 0x9d, 0x06, 0x68, 0x8a, 0xf5, 0x3e, 0x7f, 0x84),
32                 .be = UUID_INIT(0x0cb4ddff, 0xa545, 0x4401, 0x9d, 0x06, 0x68, 0x8a, 0xf5, 0x3e, 0x7f, 0x84),
33         },
34 };
36 static const char * const test_uuid_wrong_data[] = {
37         "c33f4995-3701-450e-9fbf206a2e98e576 ", /* no hyphen(s) */
38         "64b4371c-77c1-48f9-8221-29f054XX023b", /* invalid character(s) */
39         "0cb4ddff-a545-4401-9d06-688af53e",     /* not enough data */
40 };
42 static unsigned total_tests __initdata;
43 static unsigned failed_tests __initdata;
45 static void __init test_uuid_failed(const char *prefix, bool wrong, bool be,
46                                     const char *data, const char *actual)
47 {
48         pr_err("%s test #%u %s %s data: '%s'\n",
49                prefix,
50                total_tests,
51                wrong ? "passed on wrong" : "failed on",
52                be ? "BE" : "LE",
53                data);
54         if (actual && *actual)
55                 pr_err("%s test #%u actual data: '%s'\n",
56                        prefix,
57                        total_tests,
58                        actual);
59         failed_tests++;
60 }
62 static void __init test_uuid_test(const struct test_uuid_data *data)
63 {
64         guid_t le;
65         uuid_t be;
66         char buf[48];
68         /* LE */
69         total_tests++;
70         if (guid_parse(data->uuid, &le))
71                 test_uuid_failed("conversion", false, false, data->uuid, NULL);
73         total_tests++;
74         if (!guid_equal(&data->le, &le)) {
75                 sprintf(buf, "%pUl", &le);
76                 test_uuid_failed("cmp", false, false, data->uuid, buf);
77         }
79         /* BE */
80         total_tests++;
81         if (uuid_parse(data->uuid, &be))
82                 test_uuid_failed("conversion", false, true, data->uuid, NULL);
84         total_tests++;
85         if (!uuid_equal(&data->be, &be)) {
86                 sprintf(buf, "%pUb", &be);
87                 test_uuid_failed("cmp", false, true, data->uuid, buf);
88         }
89 }
91 static void __init test_uuid_wrong(const char *data)
92 {
93         guid_t le;
94         uuid_t be;
96         /* LE */
97         total_tests++;
98         if (!guid_parse(data, &le))
99                 test_uuid_failed("negative", true, false, data, NULL);
101         /* BE */
102         total_tests++;
103         if (!uuid_parse(data, &be))
104                 test_uuid_failed("negative", true, true, data, NULL);
107 static int __init test_uuid_init(void)
109         unsigned int i;
111         for (i = 0; i < ARRAY_SIZE(test_uuid_test_data); i++)
112                 test_uuid_test(&test_uuid_test_data[i]);
114         for (i = 0; i < ARRAY_SIZE(test_uuid_wrong_data); i++)
115                 test_uuid_wrong(test_uuid_wrong_data[i]);
117         if (failed_tests == 0)
118                 pr_info("all %u tests passed\n", total_tests);
119         else
120                 pr_err("failed %u out of %u tests\n", failed_tests, total_tests);
122         return failed_tests ? -EINVAL : 0;
124 module_init(test_uuid_init);
126 static void __exit test_uuid_exit(void)
128         /* do nothing */
130 module_exit(test_uuid_exit);
132 MODULE_AUTHOR("Andy Shevchenko <andriy.shevchenko@linux.intel.com>");
133 MODULE_LICENSE("Dual BSD/GPL");