the-tree/lib/test-string_helpers.c

0001 /*
0002  * Test cases for lib/string_helpers.c module.
0003  */
0004 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
0005
0006 #include <linux/init.h>
0007 #include <linux/kernel.h>
0008 #include <linux/slab.h>
0009 #include <linux/module.h>
0010 #include <linux/random.h>
0011 #include <linux/string.h>
0012 #include <linux/string_helpers.h>
0013
0014 static __init bool test_string_check_buf(const char *name, unsigned int flags,
0015                      char *in, size_t p,
0016                      char *out_real, size_t q_real,
0017                      char *out_test, size_t q_test)
0018 {
0019     if (q_real == q_test && !memcmp(out_test, out_real, q_test))
0020         return true;
0021
0022     pr_warn("Test '%s' failed: flags = %#x\n", name, flags);
0023
0024     print_hex_dump(KERN_WARNING, "Input: ", DUMP_PREFIX_NONE, 16, 1,
0025                in, p, true);
0026     print_hex_dump(KERN_WARNING, "Expected: ", DUMP_PREFIX_NONE, 16, 1,
0027                out_test, q_test, true);
0028     print_hex_dump(KERN_WARNING, "Got: ", DUMP_PREFIX_NONE, 16, 1,
0029                out_real, q_real, true);
0030
0031     return false;
0032 }
0033
0034 struct test_string {
0035     const char *in;
0036     const char *out;
0037     unsigned int flags;
0038 };
0039
0040 static const struct test_string strings[] __initconst = {
0041     {
0042         .in = "\\f\\ \\n\\r\\t\\v",
0043         .out = "\f\\ \n\r\t\v",
0044         .flags = UNESCAPE_SPACE,
0045     },
0046     {
0047         .in = "\\40\\1\\387\\0064\\05\\040\\8a\\110\\777",
0048         .out = " \001\00387\0064\005 \\8aH?7",
0049         .flags = UNESCAPE_OCTAL,
0050     },
0051     {
0052         .in = "\\xv\\xa\\x2c\\xD\\x6f2",
0053         .out = "\\xv\n,\ro2",
0054         .flags = UNESCAPE_HEX,
0055     },
0056     {
0057         .in = "\\h\\\\\\\"\\a\\e\\",
0058         .out = "\\h\\\"\a\e\\",
0059         .flags = UNESCAPE_SPECIAL,
0060     },
0061 };
0062
0063 static void __init test_string_unescape(const char *name, unsigned int flags,
0064                     bool inplace)
0065 {
0066     int q_real = 256;
0067     char *in = kmalloc(q_real, GFP_KERNEL);
0068     char *out_test = kmalloc(q_real, GFP_KERNEL);
0069     char *out_real = kmalloc(q_real, GFP_KERNEL);
0070     int i, p = 0, q_test = 0;
0071
0072     if (!in || !out_test || !out_real)
0073         goto out;
0074
0075     for (i = 0; i < ARRAY_SIZE(strings); i++) {
0076         const char *s = strings[i].in;
0077         int len = strlen(strings[i].in);
0078
0079         /* Copy string to in buffer */
0080         memcpy(&in[p], s, len);
0081         p += len;
0082
0083         /* Copy expected result for given flags */
0084         if (flags & strings[i].flags) {
0085             s = strings[i].out;
0086             len = strlen(strings[i].out);
0087         }
0088         memcpy(&out_test[q_test], s, len);
0089         q_test += len;
0090     }
0091     in[p++] = '\0';
0092
0093     /* Call string_unescape and compare result */
0094     if (inplace) {
0095         memcpy(out_real, in, p);
0096         if (flags == UNESCAPE_ANY)
0097             q_real = string_unescape_any_inplace(out_real);
0098         else
0099             q_real = string_unescape_inplace(out_real, flags);
0100     } else if (flags == UNESCAPE_ANY) {
0101         q_real = string_unescape_any(in, out_real, q_real);
0102     } else {
0103         q_real = string_unescape(in, out_real, q_real, flags);
0104     }
0105
0106     test_string_check_buf(name, flags, in, p - 1, out_real, q_real,
0107                   out_test, q_test);
0108 out:
0109     kfree(out_real);
0110     kfree(out_test);
0111     kfree(in);
0112 }
0113
0114 struct test_string_1 {
0115     const char *out;
0116     unsigned int flags;
0117 };
0118
0119 #define TEST_STRING_2_MAX_S1        32
0120 struct test_string_2 {
0121     const char *in;
0122     struct test_string_1 s1[TEST_STRING_2_MAX_S1];
0123 };
0124
0125 #define TEST_STRING_2_DICT_0        NULL
0126 static const struct test_string_2 escape0[] __initconst = {{
0127     .in = "\f\\ \n\r\t\v",
0128     .s1 = {{
0129         .out = "\\f\\ \\n\\r\\t\\v",
0130         .flags = ESCAPE_SPACE,
0131     },{
0132         .out = "\\f\\134\\040\\n\\r\\t\\v",
0133         .flags = ESCAPE_SPACE | ESCAPE_OCTAL,
0134     },{
0135         .out = "\\f\\x5c\\x20\\n\\r\\t\\v",
0136         .flags = ESCAPE_SPACE | ESCAPE_HEX,
0137     },{
0138         /* terminator */
0139     }}
0140 },{
0141     .in = "\\h\\\"\a\e\\",
0142     .s1 = {{
0143         .out = "\\\\h\\\\\\\"\\a\\e\\\\",
0144         .flags = ESCAPE_SPECIAL,
0145     },{
0146         .out = "\\\\\\150\\\\\\\"\\a\\e\\\\",
0147         .flags = ESCAPE_SPECIAL | ESCAPE_OCTAL,
0148     },{
0149         .out = "\\\\\\x68\\\\\\\"\\a\\e\\\\",
0150         .flags = ESCAPE_SPECIAL | ESCAPE_HEX,
0151     },{
0152         /* terminator */
0153     }}
0154 },{
0155     .in = "\eb \\C\007\"\x90\r]",
0156     .s1 = {{
0157         .out = "\eb \\C\007\"\x90\\r]",
0158         .flags = ESCAPE_SPACE,
0159     },{
0160         .out = "\\eb \\\\C\\a\\\"\x90\r]",
0161         .flags = ESCAPE_SPECIAL,
0162     },{
0163         .out = "\\eb \\\\C\\a\\\"\x90\\r]",
0164         .flags = ESCAPE_SPACE | ESCAPE_SPECIAL,
0165     },{
0166         .out = "\\033\\142\\040\\134\\103\\007\\042\\220\\015\\135",
0167         .flags = ESCAPE_OCTAL,
0168     },{
0169         .out = "\\033\\142\\040\\134\\103\\007\\042\\220\\r\\135",
0170         .flags = ESCAPE_SPACE | ESCAPE_OCTAL,
0171     },{
0172         .out = "\\e\\142\\040\\\\\\103\\a\\\"\\220\\015\\135",
0173         .flags = ESCAPE_SPECIAL | ESCAPE_OCTAL,
0174     },{
0175         .out = "\\e\\142\\040\\\\\\103\\a\\\"\\220\\r\\135",
0176         .flags = ESCAPE_SPACE | ESCAPE_SPECIAL | ESCAPE_OCTAL,
0177     },{
0178         .out = "\eb \\C\007\"\x90\r]",
0179         .flags = ESCAPE_NP,
0180     },{
0181         .out = "\eb \\C\007\"\x90\\r]",
0182         .flags = ESCAPE_SPACE | ESCAPE_NP,
0183     },{
0184         .out = "\\eb \\C\\a\"\x90\r]",
0185         .flags = ESCAPE_SPECIAL | ESCAPE_NP,
0186     },{
0187         .out = "\\eb \\C\\a\"\x90\\r]",
0188         .flags = ESCAPE_SPACE | ESCAPE_SPECIAL | ESCAPE_NP,
0189     },{
0190         .out = "\\033b \\C\\007\"\\220\\015]",
0191         .flags = ESCAPE_OCTAL | ESCAPE_NP,
0192     },{
0193         .out = "\\033b \\C\\007\"\\220\\r]",
0194         .flags = ESCAPE_SPACE | ESCAPE_OCTAL | ESCAPE_NP,
0195     },{
0196         .out = "\\eb \\C\\a\"\\220\\r]",
0197         .flags = ESCAPE_SPECIAL | ESCAPE_SPACE | ESCAPE_OCTAL |
0198              ESCAPE_NP,
0199     },{
0200         .out = "\\x1bb \\C\\x07\"\\x90\\x0d]",
0201         .flags = ESCAPE_NP | ESCAPE_HEX,
0202     },{
0203         /* terminator */
0204     }}
0205 },{
0206     .in = "\007 \eb\"\x90\xCF\r",
0207     .s1 = {{
0208         .out = "\007 \eb\"\\220\\317\r",
0209         .flags = ESCAPE_OCTAL | ESCAPE_NA,
0210     },{
0211         .out = "\007 \eb\"\\x90\\xcf\r",
0212         .flags = ESCAPE_HEX | ESCAPE_NA,
0213     },{
0214         .out = "\007 \eb\"\x90\xCF\r",
0215         .flags = ESCAPE_NA,
0216     },{
0217         /* terminator */
0218     }}
0219 },{
0220     /* terminator */
0221 }};
0222
0223 #define TEST_STRING_2_DICT_1        "b\\ \t\r\xCF"
0224 static const struct test_string_2 escape1[] __initconst = {{
0225     .in = "\f\\ \n\r\t\v",
0226     .s1 = {{
0227         .out = "\f\\134\\040\n\\015\\011\v",
0228         .flags = ESCAPE_OCTAL,
0229     },{
0230         .out = "\f\\x5c\\x20\n\\x0d\\x09\v",
0231         .flags = ESCAPE_HEX,
0232     },{
0233         .out = "\f\\134\\040\n\\015\\011\v",
0234         .flags = ESCAPE_ANY | ESCAPE_APPEND,
0235     },{
0236         .out = "\\014\\134\\040\\012\\015\\011\\013",
0237         .flags = ESCAPE_OCTAL | ESCAPE_APPEND | ESCAPE_NAP,
0238     },{
0239         .out = "\\x0c\\x5c\\x20\\x0a\\x0d\\x09\\x0b",
0240         .flags = ESCAPE_HEX | ESCAPE_APPEND | ESCAPE_NAP,
0241     },{
0242         .out = "\f\\134\\040\n\\015\\011\v",
0243         .flags = ESCAPE_OCTAL | ESCAPE_APPEND | ESCAPE_NA,
0244     },{
0245         .out = "\f\\x5c\\x20\n\\x0d\\x09\v",
0246         .flags = ESCAPE_HEX | ESCAPE_APPEND | ESCAPE_NA,
0247     },{
0248         /* terminator */
0249     }}
0250 },{
0251     .in = "\\h\\\"\a\xCF\e\\",
0252     .s1 = {{
0253         .out = "\\134h\\134\"\a\\317\e\\134",
0254         .flags = ESCAPE_OCTAL,
0255     },{
0256         .out = "\\134h\\134\"\a\\317\e\\134",
0257         .flags = ESCAPE_ANY | ESCAPE_APPEND,
0258     },{
0259         .out = "\\134h\\134\"\\007\\317\\033\\134",
0260         .flags = ESCAPE_OCTAL | ESCAPE_APPEND | ESCAPE_NAP,
0261     },{
0262         .out = "\\134h\\134\"\a\\317\e\\134",
0263         .flags = ESCAPE_OCTAL | ESCAPE_APPEND | ESCAPE_NA,
0264     },{
0265         /* terminator */
0266     }}
0267 },{
0268     .in = "\eb \\C\007\"\x90\r]",
0269     .s1 = {{
0270         .out = "\e\\142\\040\\134C\007\"\x90\\015]",
0271         .flags = ESCAPE_OCTAL,
0272     },{
0273         /* terminator */
0274     }}
0275 },{
0276     .in = "\007 \eb\"\x90\xCF\r",
0277     .s1 = {{
0278         .out = "\007 \eb\"\x90\xCF\r",
0279         .flags = ESCAPE_NA,
0280     },{
0281         .out = "\007 \eb\"\x90\xCF\r",
0282         .flags = ESCAPE_SPACE | ESCAPE_NA,
0283     },{
0284         .out = "\007 \eb\"\x90\xCF\r",
0285         .flags = ESCAPE_SPECIAL | ESCAPE_NA,
0286     },{
0287         .out = "\007 \eb\"\x90\xCF\r",
0288         .flags = ESCAPE_SPACE | ESCAPE_SPECIAL | ESCAPE_NA,
0289     },{
0290         .out = "\007 \eb\"\x90\\317\r",
0291         .flags = ESCAPE_OCTAL | ESCAPE_NA,
0292     },{
0293         .out = "\007 \eb\"\x90\\317\r",
0294         .flags = ESCAPE_SPACE | ESCAPE_OCTAL | ESCAPE_NA,
0295     },{
0296         .out = "\007 \eb\"\x90\\317\r",
0297         .flags = ESCAPE_SPECIAL | ESCAPE_OCTAL | ESCAPE_NA,
0298     },{
0299         .out = "\007 \eb\"\x90\\317\r",
0300         .flags = ESCAPE_ANY | ESCAPE_NA,
0301     },{
0302         .out = "\007 \eb\"\x90\\xcf\r",
0303         .flags = ESCAPE_HEX | ESCAPE_NA,
0304     },{
0305         .out = "\007 \eb\"\x90\\xcf\r",
0306         .flags = ESCAPE_SPACE | ESCAPE_HEX | ESCAPE_NA,
0307     },{
0308         .out = "\007 \eb\"\x90\\xcf\r",
0309         .flags = ESCAPE_SPECIAL | ESCAPE_HEX | ESCAPE_NA,
0310     },{
0311         .out = "\007 \eb\"\x90\\xcf\r",
0312         .flags = ESCAPE_SPACE | ESCAPE_SPECIAL | ESCAPE_HEX | ESCAPE_NA,
0313     },{
0314         /* terminator */
0315     }}
0316 },{
0317     .in = "\007 \eb\"\x90\xCF\r",
0318     .s1 = {{
0319         .out = "\007 \eb\"\x90\xCF\r",
0320         .flags = ESCAPE_NAP,
0321     },{
0322         .out = "\007 \eb\"\x90\xCF\\r",
0323         .flags = ESCAPE_SPACE | ESCAPE_NAP,
0324     },{
0325         .out = "\007 \eb\"\x90\xCF\r",
0326         .flags = ESCAPE_SPECIAL | ESCAPE_NAP,
0327     },{
0328         .out = "\007 \eb\"\x90\xCF\\r",
0329         .flags = ESCAPE_SPACE | ESCAPE_SPECIAL | ESCAPE_NAP,
0330     },{
0331         .out = "\007 \eb\"\x90\\317\\015",
0332         .flags = ESCAPE_OCTAL | ESCAPE_NAP,
0333     },{
0334         .out = "\007 \eb\"\x90\\317\\r",
0335         .flags = ESCAPE_SPACE | ESCAPE_OCTAL | ESCAPE_NAP,
0336     },{
0337         .out = "\007 \eb\"\x90\\317\\015",
0338         .flags = ESCAPE_SPECIAL | ESCAPE_OCTAL | ESCAPE_NAP,
0339     },{
0340         .out = "\007 \eb\"\x90\\317\r",
0341         .flags = ESCAPE_ANY | ESCAPE_NAP,
0342     },{
0343         .out = "\007 \eb\"\x90\\xcf\\x0d",
0344         .flags = ESCAPE_HEX | ESCAPE_NAP,
0345     },{
0346         .out = "\007 \eb\"\x90\\xcf\\r",
0347         .flags = ESCAPE_SPACE | ESCAPE_HEX | ESCAPE_NAP,
0348     },{
0349         .out = "\007 \eb\"\x90\\xcf\\x0d",
0350         .flags = ESCAPE_SPECIAL | ESCAPE_HEX | ESCAPE_NAP,
0351     },{
0352         .out = "\007 \eb\"\x90\\xcf\\r",
0353         .flags = ESCAPE_SPACE | ESCAPE_SPECIAL | ESCAPE_HEX | ESCAPE_NAP,
0354     },{
0355         /* terminator */
0356     }}
0357 },{
0358     /* terminator */
0359 }};
0360
0361 static const struct test_string strings_upper[] __initconst = {
0362     {
0363         .in = "abcdefgh1234567890test",
0364         .out = "ABCDEFGH1234567890TEST",
0365     },
0366     {
0367         .in = "abCdeFgH1234567890TesT",
0368         .out = "ABCDEFGH1234567890TEST",
0369     },
0370 };
0371
0372 static const struct test_string strings_lower[] __initconst = {
0373     {
0374         .in = "ABCDEFGH1234567890TEST",
0375         .out = "abcdefgh1234567890test",
0376     },
0377     {
0378         .in = "abCdeFgH1234567890TesT",
0379         .out = "abcdefgh1234567890test",
0380     },
0381 };
0382
0383 static __init const char *test_string_find_match(const struct test_string_2 *s2,
0384                          unsigned int flags)
0385 {
0386     const struct test_string_1 *s1 = s2->s1;
0387     unsigned int i;
0388
0389     if (!flags)
0390         return s2->in;
0391
0392     /* Test cases are NULL-aware */
0393     flags &= ~ESCAPE_NULL;
0394
0395     /* ESCAPE_OCTAL has a higher priority */
0396     if (flags & ESCAPE_OCTAL)
0397         flags &= ~ESCAPE_HEX;
0398
0399     for (i = 0; i < TEST_STRING_2_MAX_S1 && s1->out; i++, s1++)
0400         if (s1->flags == flags)
0401             return s1->out;
0402     return NULL;
0403 }
0404
0405 static __init void
0406 test_string_escape_overflow(const char *in, int p, unsigned int flags, const char *esc,
0407                 int q_test, const char *name)
0408 {
0409     int q_real;
0410
0411     q_real = string_escape_mem(in, p, NULL, 0, flags, esc);
0412     if (q_real != q_test)
0413         pr_warn("Test '%s' failed: flags = %#x, osz = 0, expected %d, got %d\n",
0414             name, flags, q_test, q_real);
0415 }
0416
0417 static __init void test_string_escape(const char *name,
0418                       const struct test_string_2 *s2,
0419                       unsigned int flags, const char *esc)
0420 {
0421     size_t out_size = 512;
0422     char *out_test = kmalloc(out_size, GFP_KERNEL);
0423     char *out_real = kmalloc(out_size, GFP_KERNEL);
0424     char *in = kmalloc(256, GFP_KERNEL);
0425     int p = 0, q_test = 0;
0426     int q_real;
0427
0428     if (!out_test || !out_real || !in)
0429         goto out;
0430
0431     for (; s2->in; s2++) {
0432         const char *out;
0433         int len;
0434
0435         /* NULL injection */
0436         if (flags & ESCAPE_NULL) {
0437             in[p++] = '\0';
0438             /* '\0' passes isascii() test */
0439             if (flags & ESCAPE_NA && !(flags & ESCAPE_APPEND && esc)) {
0440                 out_test[q_test++] = '\0';
0441             } else {
0442                 out_test[q_test++] = '\\';
0443                 out_test[q_test++] = '0';
0444             }
0445         }
0446
0447         /* Don't try strings that have no output */
0448         out = test_string_find_match(s2, flags);
0449         if (!out)
0450             continue;
0451
0452         /* Copy string to in buffer */
0453         len = strlen(s2->in);
0454         memcpy(&in[p], s2->in, len);
0455         p += len;
0456
0457         /* Copy expected result for given flags */
0458         len = strlen(out);
0459         memcpy(&out_test[q_test], out, len);
0460         q_test += len;
0461     }
0462
0463     q_real = string_escape_mem(in, p, out_real, out_size, flags, esc);
0464
0465     test_string_check_buf(name, flags, in, p, out_real, q_real, out_test,
0466                   q_test);
0467
0468     test_string_escape_overflow(in, p, flags, esc, q_test, name);
0469
0470 out:
0471     kfree(in);
0472     kfree(out_real);
0473     kfree(out_test);
0474 }
0475
0476 #define string_get_size_maxbuf 16
0477 #define test_string_get_size_one(size, blk_size, exp_result10, exp_result2)    \
0478     do {                                                                   \
0479         BUILD_BUG_ON(sizeof(exp_result10) >= string_get_size_maxbuf);  \
0480         BUILD_BUG_ON(sizeof(exp_result2) >= string_get_size_maxbuf);   \
0481         __test_string_get_size((size), (blk_size), (exp_result10),     \
0482                        (exp_result2));                         \
0483     } while (0)
0484
0485
0486 static __init void test_string_get_size_check(const char *units,
0487                           const char *exp,
0488                           char *res,
0489                           const u64 size,
0490                           const u64 blk_size)
0491 {
0492     if (!memcmp(res, exp, strlen(exp) + 1))
0493         return;
0494
0495     res[string_get_size_maxbuf - 1] = '\0';
0496
0497     pr_warn("Test 'test_string_get_size' failed!\n");
0498     pr_warn("string_get_size(size = %llu, blk_size = %llu, units = %s)\n",
0499         size, blk_size, units);
0500     pr_warn("expected: '%s', got '%s'\n", exp, res);
0501 }
0502
0503 static __init void __test_string_get_size(const u64 size, const u64 blk_size,
0504                       const char *exp_result10,
0505                       const char *exp_result2)
0506 {
0507     char buf10[string_get_size_maxbuf];
0508     char buf2[string_get_size_maxbuf];
0509
0510     string_get_size(size, blk_size, STRING_UNITS_10, buf10, sizeof(buf10));
0511     string_get_size(size, blk_size, STRING_UNITS_2, buf2, sizeof(buf2));
0512
0513     test_string_get_size_check("STRING_UNITS_10", exp_result10, buf10,
0514                    size, blk_size);
0515
0516     test_string_get_size_check("STRING_UNITS_2", exp_result2, buf2,
0517                    size, blk_size);
0518 }
0519
0520 static __init void test_string_get_size(void)
0521 {
0522     /* small values */
0523     test_string_get_size_one(0, 512, "0 B", "0 B");
0524     test_string_get_size_one(1, 512, "512 B", "512 B");
0525     test_string_get_size_one(1100, 1, "1.10 kB", "1.07 KiB");
0526
0527     /* normal values */
0528     test_string_get_size_one(16384, 512, "8.39 MB", "8.00 MiB");
0529     test_string_get_size_one(500118192, 512, "256 GB", "238 GiB");
0530     test_string_get_size_one(8192, 4096, "33.6 MB", "32.0 MiB");
0531
0532     /* weird block sizes */
0533     test_string_get_size_one(3000, 1900, "5.70 MB", "5.44 MiB");
0534
0535     /* huge values */
0536     test_string_get_size_one(U64_MAX, 4096, "75.6 ZB", "64.0 ZiB");
0537     test_string_get_size_one(4096, U64_MAX, "75.6 ZB", "64.0 ZiB");
0538 }
0539
0540 static void __init test_string_upper_lower(void)
0541 {
0542     char *dst;
0543     int i;
0544
0545     for (i = 0; i < ARRAY_SIZE(strings_upper); i++) {
0546         const char *s = strings_upper[i].in;
0547         int len = strlen(strings_upper[i].in) + 1;
0548
0549         dst = kmalloc(len, GFP_KERNEL);
0550         if (!dst)
0551             return;
0552
0553         string_upper(dst, s);
0554         if (memcmp(dst, strings_upper[i].out, len)) {
0555             pr_warn("Test 'string_upper' failed : expected %s, got %s!\n",
0556                 strings_upper[i].out, dst);
0557             kfree(dst);
0558             return;
0559         }
0560         kfree(dst);
0561     }
0562
0563     for (i = 0; i < ARRAY_SIZE(strings_lower); i++) {
0564         const char *s = strings_lower[i].in;
0565         int len = strlen(strings_lower[i].in) + 1;
0566
0567         dst = kmalloc(len, GFP_KERNEL);
0568         if (!dst)
0569             return;
0570
0571         string_lower(dst, s);
0572         if (memcmp(dst, strings_lower[i].out, len)) {
0573             pr_warn("Test 'string_lower failed : : expected %s, got %s!\n",
0574                 strings_lower[i].out, dst);
0575             kfree(dst);
0576             return;
0577         }
0578         kfree(dst);
0579     }
0580 }
0581
0582 static int __init test_string_helpers_init(void)
0583 {
0584     unsigned int i;
0585
0586     pr_info("Running tests...\n");
0587     for (i = 0; i < UNESCAPE_ALL_MASK + 1; i++)
0588         test_string_unescape("unescape", i, false);
0589     test_string_unescape("unescape inplace",
0590                  get_random_int() % (UNESCAPE_ANY + 1), true);
0591
0592     /* Without dictionary */
0593     for (i = 0; i < ESCAPE_ALL_MASK + 1; i++)
0594         test_string_escape("escape 0", escape0, i, TEST_STRING_2_DICT_0);
0595
0596     /* With dictionary */
0597     for (i = 0; i < ESCAPE_ALL_MASK + 1; i++)
0598         test_string_escape("escape 1", escape1, i, TEST_STRING_2_DICT_1);
0599
0600     /* Test string_get_size() */
0601     test_string_get_size();
0602
0603     /* Test string upper(), string_lower() */
0604     test_string_upper_lower();
0605
0606     return -EINVAL;
0607 }
0608 module_init(test_string_helpers_init);
0609 MODULE_LICENSE("Dual BSD/GPL");