summaryrefslogtreecommitdiff
path: root/fs/unicode/utf8-selftest.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/unicode/utf8-selftest.c')
-rw-r--r--fs/unicode/utf8-selftest.c312
1 files changed, 0 insertions, 312 deletions
diff --git a/fs/unicode/utf8-selftest.c b/fs/unicode/utf8-selftest.c
deleted file mode 100644
index 6fe8af7edccb..000000000000
--- a/fs/unicode/utf8-selftest.c
+++ /dev/null
@@ -1,312 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Kernel module for testing utf-8 support.
- *
- * Copyright 2017 Collabora Ltd.
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/module.h>
-#include <linux/printk.h>
-#include <linux/unicode.h>
-#include <linux/dcache.h>
-
-#include "utf8n.h"
-
-unsigned int failed_tests;
-unsigned int total_tests;
-
-/* Tests will be based on this version. */
-#define latest_maj 12
-#define latest_min 1
-#define latest_rev 0
-
-#define _test(cond, func, line, fmt, ...) do { \
- total_tests++; \
- if (!cond) { \
- failed_tests++; \
- pr_err("test %s:%d Failed: %s%s", \
- func, line, #cond, (fmt?":":".")); \
- if (fmt) \
- pr_err(fmt, ##__VA_ARGS__); \
- } \
- } while (0)
-#define test_f(cond, fmt, ...) _test(cond, __func__, __LINE__, fmt, ##__VA_ARGS__)
-#define test(cond) _test(cond, __func__, __LINE__, "")
-
-static const struct {
- /* UTF-8 strings in this vector _must_ be NULL-terminated. */
- unsigned char str[10];
- unsigned char dec[10];
-} nfdi_test_data[] = {
- /* Trivial sequence */
- {
- /* "ABba" decomposes to itself */
- .str = "aBba",
- .dec = "aBba",
- },
- /* Simple equivalent sequences */
- {
- /* 'VULGAR FRACTION ONE QUARTER' cannot decompose to
- 'NUMBER 1' + 'FRACTION SLASH' + 'NUMBER 4' on
- canonical decomposition */
- .str = {0xc2, 0xbc, 0x00},
- .dec = {0xc2, 0xbc, 0x00},
- },
- {
- /* 'LATIN SMALL LETTER A WITH DIAERESIS' decomposes to
- 'LETTER A' + 'COMBINING DIAERESIS' */
- .str = {0xc3, 0xa4, 0x00},
- .dec = {0x61, 0xcc, 0x88, 0x00},
- },
- {
- /* 'LATIN SMALL LETTER LJ' can't decompose to
- 'LETTER L' + 'LETTER J' on canonical decomposition */
- .str = {0xC7, 0x89, 0x00},
- .dec = {0xC7, 0x89, 0x00},
- },
- {
- /* GREEK ANO TELEIA decomposes to MIDDLE DOT */
- .str = {0xCE, 0x87, 0x00},
- .dec = {0xC2, 0xB7, 0x00}
- },
- /* Canonical ordering */
- {
- /* A + 'COMBINING ACUTE ACCENT' + 'COMBINING OGONEK' decomposes
- to A + 'COMBINING OGONEK' + 'COMBINING ACUTE ACCENT' */
- .str = {0x41, 0xcc, 0x81, 0xcc, 0xa8, 0x0},
- .dec = {0x41, 0xcc, 0xa8, 0xcc, 0x81, 0x0},
- },
- {
- /* 'LATIN SMALL LETTER A WITH DIAERESIS' + 'COMBINING OGONEK'
- decomposes to
- 'LETTER A' + 'COMBINING OGONEK' + 'COMBINING DIAERESIS' */
- .str = {0xc3, 0xa4, 0xCC, 0xA8, 0x00},
-
- .dec = {0x61, 0xCC, 0xA8, 0xcc, 0x88, 0x00},
- },
-
-};
-
-static const struct {
- /* UTF-8 strings in this vector _must_ be NULL-terminated. */
- unsigned char str[30];
- unsigned char ncf[30];
-} nfdicf_test_data[] = {
- /* Trivial sequences */
- {
- /* "ABba" folds to lowercase */
- .str = {0x41, 0x42, 0x62, 0x61, 0x00},
- .ncf = {0x61, 0x62, 0x62, 0x61, 0x00},
- },
- {
- /* All ASCII folds to lower-case */
- .str = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0.1",
- .ncf = "abcdefghijklmnopqrstuvwxyz0.1",
- },
- {
- /* LATIN SMALL LETTER SHARP S folds to
- LATIN SMALL LETTER S + LATIN SMALL LETTER S */
- .str = {0xc3, 0x9f, 0x00},
- .ncf = {0x73, 0x73, 0x00},
- },
- {
- /* LATIN CAPITAL LETTER A WITH RING ABOVE folds to
- LATIN SMALL LETTER A + COMBINING RING ABOVE */
- .str = {0xC3, 0x85, 0x00},
- .ncf = {0x61, 0xcc, 0x8a, 0x00},
- },
- /* Introduced by UTF-8.0.0. */
- /* Cherokee letters are interesting test-cases because they fold
- to upper-case. Before 8.0.0, Cherokee lowercase were
- undefined, thus, the folding from LC is not stable between
- 7.0.0 -> 8.0.0, but it is from UC. */
- {
- /* CHEROKEE SMALL LETTER A folds to CHEROKEE LETTER A */
- .str = {0xea, 0xad, 0xb0, 0x00},
- .ncf = {0xe1, 0x8e, 0xa0, 0x00},
- },
- {
- /* CHEROKEE SMALL LETTER YE folds to CHEROKEE LETTER YE */
- .str = {0xe1, 0x8f, 0xb8, 0x00},
- .ncf = {0xe1, 0x8f, 0xb0, 0x00},
- },
- {
- /* OLD HUNGARIAN CAPITAL LETTER AMB folds to
- OLD HUNGARIAN SMALL LETTER AMB */
- .str = {0xf0, 0x90, 0xb2, 0x83, 0x00},
- .ncf = {0xf0, 0x90, 0xb3, 0x83, 0x00},
- },
- /* Introduced by UTF-9.0.0. */
- {
- /* OSAGE CAPITAL LETTER CHA folds to
- OSAGE SMALL LETTER CHA */
- .str = {0xf0, 0x90, 0x92, 0xb5, 0x00},
- .ncf = {0xf0, 0x90, 0x93, 0x9d, 0x00},
- },
- {
- /* LATIN CAPITAL LETTER SMALL CAPITAL I folds to
- LATIN LETTER SMALL CAPITAL I */
- .str = {0xea, 0x9e, 0xae, 0x00},
- .ncf = {0xc9, 0xaa, 0x00},
- },
- /* Introduced by UTF-11.0.0. */
- {
- /* GEORGIAN SMALL LETTER AN folds to GEORGIAN MTAVRULI
- CAPITAL LETTER AN */
- .str = {0xe1, 0xb2, 0x90, 0x00},
- .ncf = {0xe1, 0x83, 0x90, 0x00},
- }
-};
-
-static void check_utf8_nfdi(void)
-{
- int i;
- struct utf8cursor u8c;
- const struct utf8data *data;
-
- data = utf8nfdi(UNICODE_AGE(latest_maj, latest_min, latest_rev));
- if (!data) {
- pr_err("%s: Unable to load utf8-%d.%d.%d. Skipping.\n",
- __func__, latest_maj, latest_min, latest_rev);
- return;
- }
-
- for (i = 0; i < ARRAY_SIZE(nfdi_test_data); i++) {
- int len = strlen(nfdi_test_data[i].str);
- int nlen = strlen(nfdi_test_data[i].dec);
- int j = 0;
- unsigned char c;
-
- test((utf8len(data, nfdi_test_data[i].str) == nlen));
- test((utf8nlen(data, nfdi_test_data[i].str, len) == nlen));
-
- if (utf8cursor(&u8c, data, nfdi_test_data[i].str) < 0)
- pr_err("can't create cursor\n");
-
- while ((c = utf8byte(&u8c)) > 0) {
- test_f((c == nfdi_test_data[i].dec[j]),
- "Unexpected byte 0x%x should be 0x%x\n",
- c, nfdi_test_data[i].dec[j]);
- j++;
- }
-
- test((j == nlen));
- }
-}
-
-static void check_utf8_nfdicf(void)
-{
- int i;
- struct utf8cursor u8c;
- const struct utf8data *data;
-
- data = utf8nfdicf(UNICODE_AGE(latest_maj, latest_min, latest_rev));
- if (!data) {
- pr_err("%s: Unable to load utf8-%d.%d.%d. Skipping.\n",
- __func__, latest_maj, latest_min, latest_rev);
- return;
- }
-
- for (i = 0; i < ARRAY_SIZE(nfdicf_test_data); i++) {
- int len = strlen(nfdicf_test_data[i].str);
- int nlen = strlen(nfdicf_test_data[i].ncf);
- int j = 0;
- unsigned char c;
-
- test((utf8len(data, nfdicf_test_data[i].str) == nlen));
- test((utf8nlen(data, nfdicf_test_data[i].str, len) == nlen));
-
- if (utf8cursor(&u8c, data, nfdicf_test_data[i].str) < 0)
- pr_err("can't create cursor\n");
-
- while ((c = utf8byte(&u8c)) > 0) {
- test_f((c == nfdicf_test_data[i].ncf[j]),
- "Unexpected byte 0x%x should be 0x%x\n",
- c, nfdicf_test_data[i].ncf[j]);
- j++;
- }
-
- test((j == nlen));
- }
-}
-
-static void check_utf8_comparisons(void)
-{
- int i;
- struct unicode_map *table = utf8_load("12.1.0");
-
- if (IS_ERR(table)) {
- pr_err("%s: Unable to load utf8 %d.%d.%d. Skipping.\n",
- __func__, latest_maj, latest_min, latest_rev);
- return;
- }
-
- for (i = 0; i < ARRAY_SIZE(nfdi_test_data); i++) {
- const struct qstr s1 = {.name = nfdi_test_data[i].str,
- .len = sizeof(nfdi_test_data[i].str)};
- const struct qstr s2 = {.name = nfdi_test_data[i].dec,
- .len = sizeof(nfdi_test_data[i].dec)};
-
- test_f(!utf8_strncmp(table, &s1, &s2),
- "%s %s comparison mismatch\n", s1.name, s2.name);
- }
-
- for (i = 0; i < ARRAY_SIZE(nfdicf_test_data); i++) {
- const struct qstr s1 = {.name = nfdicf_test_data[i].str,
- .len = sizeof(nfdicf_test_data[i].str)};
- const struct qstr s2 = {.name = nfdicf_test_data[i].ncf,
- .len = sizeof(nfdicf_test_data[i].ncf)};
-
- test_f(!utf8_strncasecmp(table, &s1, &s2),
- "%s %s comparison mismatch\n", s1.name, s2.name);
- }
-
- utf8_unload(table);
-}
-
-static void check_supported_versions(void)
-{
- /* Unicode 7.0.0 should be supported. */
- test(utf8version_is_supported(7, 0, 0));
-
- /* Unicode 9.0.0 should be supported. */
- test(utf8version_is_supported(9, 0, 0));
-
- /* Unicode 1x.0.0 (the latest version) should be supported. */
- test(utf8version_is_supported(latest_maj, latest_min, latest_rev));
-
- /* Next versions don't exist. */
- test(!utf8version_is_supported(13, 0, 0));
- test(!utf8version_is_supported(0, 0, 0));
- test(!utf8version_is_supported(-1, -1, -1));
-}
-
-static int __init init_test_ucd(void)
-{
- failed_tests = 0;
- total_tests = 0;
-
- check_supported_versions();
- check_utf8_nfdi();
- check_utf8_nfdicf();
- check_utf8_comparisons();
-
- if (!failed_tests)
- pr_info("All %u tests passed\n", total_tests);
- else
- pr_err("%u out of %u tests failed\n", failed_tests,
- total_tests);
- return 0;
-}
-
-static void __exit exit_test_ucd(void)
-{
-}
-
-module_init(init_test_ucd);
-module_exit(exit_test_ucd);
-
-MODULE_AUTHOR("Gabriel Krisman Bertazi <krisman@collabora.co.uk>");
-MODULE_LICENSE("GPL");
generated by cgit (git 2.34.1) at 2025-12-25 15:25:38 +0000