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Diffstat (limited to 'src/test/test-utf8.c')
| -rw-r--r-- | src/test/test-utf8.c | 235 |
1 files changed, 235 insertions, 0 deletions
diff --git a/src/test/test-utf8.c b/src/test/test-utf8.c new file mode 100644 index 0000000..a0d7dc1 --- /dev/null +++ b/src/test/test-utf8.c @@ -0,0 +1,235 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ + +#include "alloc-util.h" +#include "string-util.h" +#include "strv.h" +#include "tests.h" +#include "utf8.h" + +TEST(utf8_is_printable) { + assert_se(utf8_is_printable("ascii is valid\tunicode", 22)); + assert_se(utf8_is_printable("\342\204\242", 3)); + assert_se(!utf8_is_printable("\341\204", 2)); + assert_se(utf8_is_printable("ąę", 4)); + assert_se(!utf8_is_printable("\r", 1)); + assert_se(utf8_is_printable("\n", 1)); + assert_se(utf8_is_printable("\t", 1)); +} + +TEST(utf8_n_is_valid) { + assert_se( utf8_is_valid_n("ascii is valid unicode", 21)); + assert_se( utf8_is_valid_n("ascii is valid unicode", 22)); + assert_se(!utf8_is_valid_n("ascii is valid unicode", 23)); + assert_se( utf8_is_valid_n("\342\204\242", 0)); + assert_se(!utf8_is_valid_n("\342\204\242", 1)); + assert_se(!utf8_is_valid_n("\342\204\242", 2)); + assert_se( utf8_is_valid_n("\342\204\242", 3)); + assert_se(!utf8_is_valid_n("\342\204\242", 4)); + assert_se( utf8_is_valid_n("<ZZ>", 0)); + assert_se( utf8_is_valid_n("<ZZ>", 1)); + assert_se( utf8_is_valid_n("<ZZ>", 2)); + assert_se( utf8_is_valid_n("<ZZ>", 3)); + assert_se( utf8_is_valid_n("<ZZ>", 4)); + assert_se(!utf8_is_valid_n("<ZZ>", 5)); +} + +TEST(utf8_is_valid) { + assert_se(utf8_is_valid("ascii is valid unicode")); + assert_se(utf8_is_valid("\342\204\242")); + assert_se(!utf8_is_valid("\341\204")); +} + +TEST(ascii_is_valid) { + assert_se( ascii_is_valid("alsdjf\t\vbarr\nba z")); + assert_se(!ascii_is_valid("\342\204\242")); + assert_se(!ascii_is_valid("\341\204")); +} + +TEST(ascii_is_valid_n) { + assert_se( ascii_is_valid_n("alsdjf\t\vbarr\nba z", 17)); + assert_se( ascii_is_valid_n("alsdjf\t\vbarr\nba z", 16)); + assert_se(!ascii_is_valid_n("alsdjf\t\vbarr\nba z", 18)); + assert_se(!ascii_is_valid_n("\342\204\242", 3)); + assert_se(!ascii_is_valid_n("\342\204\242", 2)); + assert_se(!ascii_is_valid_n("\342\204\242", 1)); + assert_se( ascii_is_valid_n("\342\204\242", 0)); +} + +static void test_utf8_to_ascii_one(const char *s, int r_expected, const char *expected) { + _cleanup_free_ char *ans = NULL; + int r; + + r = utf8_to_ascii(s, '*', &ans); + log_debug("\"%s\" → %d/\"%s\" (expected %d/\"%s\")", s, r, strnull(ans), r_expected, strnull(expected)); + assert_se(r == r_expected); + assert_se(streq_ptr(ans, expected)); +} + +TEST(utf8_to_ascii) { + test_utf8_to_ascii_one("asdf", 0, "asdf"); + test_utf8_to_ascii_one("dąb", 0, "d*b"); + test_utf8_to_ascii_one("żęśłą óźń", 0, "***** ***"); + test_utf8_to_ascii_one("\342\204\242", 0, "*"); + test_utf8_to_ascii_one("\342\204", -EINVAL, NULL); /* truncated */ + test_utf8_to_ascii_one("\342", -EINVAL, NULL); /* truncated */ + test_utf8_to_ascii_one("\302\256", 0, "*"); + test_utf8_to_ascii_one("", 0, ""); + test_utf8_to_ascii_one(" ", 0, " "); + test_utf8_to_ascii_one("\t", 0, "\t"); + test_utf8_to_ascii_one("串", 0, "*"); + test_utf8_to_ascii_one("…👊🔪💐…", 0, "*****"); +} + +TEST(utf8_encoded_valid_unichar) { + assert_se(utf8_encoded_valid_unichar("\342\204\242", 1) == -EINVAL); /* truncated */ + assert_se(utf8_encoded_valid_unichar("\342\204\242", 2) == -EINVAL); /* truncated */ + assert_se(utf8_encoded_valid_unichar("\342\204\242", 3) == 3); + assert_se(utf8_encoded_valid_unichar("\342\204\242", 4) == 3); + assert_se(utf8_encoded_valid_unichar("\302\256", 1) == -EINVAL); /* truncated */ + assert_se(utf8_encoded_valid_unichar("\302\256", 2) == 2); + assert_se(utf8_encoded_valid_unichar("\302\256", 3) == 2); + assert_se(utf8_encoded_valid_unichar("\302\256", SIZE_MAX) == 2); + assert_se(utf8_encoded_valid_unichar("a", 1) == 1); + assert_se(utf8_encoded_valid_unichar("a", 2) == 1); + assert_se(utf8_encoded_valid_unichar("\341\204", 1) == -EINVAL); /* truncated, potentially valid */ + assert_se(utf8_encoded_valid_unichar("\341\204", 2) == -EINVAL); /* truncated, potentially valid */ + assert_se(utf8_encoded_valid_unichar("\341\204", 3) == -EINVAL); + assert_se(utf8_encoded_valid_unichar("\341\204\341\204", 4) == -EINVAL); + assert_se(utf8_encoded_valid_unichar("\341\204\341\204", 5) == -EINVAL); +} + +TEST(utf8_escape_invalid) { + _cleanup_free_ char *p1 = NULL, *p2 = NULL, *p3 = NULL; + + p1 = utf8_escape_invalid("goo goo goo"); + log_debug("\"%s\"", p1); + assert_se(utf8_is_valid(p1)); + + p2 = utf8_escape_invalid("\341\204\341\204"); + log_debug("\"%s\"", p2); + assert_se(utf8_is_valid(p2)); + + p3 = utf8_escape_invalid("\341\204"); + log_debug("\"%s\"", p3); + assert_se(utf8_is_valid(p3)); +} + +TEST(utf8_escape_non_printable) { + _cleanup_free_ char *p1 = NULL, *p2 = NULL, *p3 = NULL, *p4 = NULL, *p5 = NULL, *p6 = NULL; + + p1 = utf8_escape_non_printable("goo goo goo"); + log_debug("\"%s\"", p1); + assert_se(utf8_is_valid(p1)); + + p2 = utf8_escape_non_printable("\341\204\341\204"); + log_debug("\"%s\"", p2); + assert_se(utf8_is_valid(p2)); + + p3 = utf8_escape_non_printable("\341\204"); + log_debug("\"%s\"", p3); + assert_se(utf8_is_valid(p3)); + + p4 = utf8_escape_non_printable("ąę\n가너도루\n1234\n\341\204\341\204\n\001 \019\20\a"); + log_debug("\"%s\"", p4); + assert_se(utf8_is_valid(p4)); + + p5 = utf8_escape_non_printable("\001 \019\20\a"); + log_debug("\"%s\"", p5); + assert_se(utf8_is_valid(p5)); + + p6 = utf8_escape_non_printable("\xef\xbf\x30\x13"); + log_debug("\"%s\"", p6); + assert_se(utf8_is_valid(p6)); +} + +TEST(utf8_escape_non_printable_full) { + FOREACH_STRING(s, + "goo goo goo", /* ASCII */ + "\001 \019\20\a", /* control characters */ + "\xef\xbf\x30\x13") /* misplaced continuation bytes followed by a digit and cc */ + for (size_t cw = 0; cw < 22; cw++) { + _cleanup_free_ char *p = NULL, *q = NULL; + size_t ew; + + p = utf8_escape_non_printable_full(s, cw, false); + ew = utf8_console_width(p); + log_debug("%02zu \"%s\" (%zu wasted)", cw, p, cw - ew); + assert_se(utf8_is_valid(p)); + assert_se(ew <= cw); + + q = utf8_escape_non_printable_full(s, cw, true); + ew = utf8_console_width(q); + log_debug(" \"%s\" (%zu wasted)", q, cw - ew); + assert_se(utf8_is_valid(q)); + assert_se(ew <= cw); + if (cw > 0) + assert_se(endswith(q, "…")); + } +} + +TEST(utf16_to_utf8) { + const char16_t utf16[] = { htole16('a'), htole16(0xd800), htole16('b'), htole16(0xdc00), htole16('c'), htole16(0xd801), htole16(0xdc37) }; + static const char utf8[] = { 'a', 'b', 'c', 0xf0, 0x90, 0x90, 0xb7 }; + _cleanup_free_ char16_t *b = NULL; + _cleanup_free_ char *a = NULL; + + /* Convert UTF-16 to UTF-8, filtering embedded bad chars */ + a = utf16_to_utf8(utf16, sizeof(utf16)); + assert_se(a); + assert_se(memcmp(a, utf8, sizeof(utf8)) == 0); + + /* Convert UTF-8 to UTF-16, and back */ + b = utf8_to_utf16(utf8, sizeof(utf8)); + assert_se(b); + + free(a); + a = utf16_to_utf8(b, SIZE_MAX); + assert_se(a); + assert_se(strlen(a) == sizeof(utf8)); + assert_se(memcmp(a, utf8, sizeof(utf8)) == 0); +} + +TEST(utf8_n_codepoints) { + assert_se(utf8_n_codepoints("abc") == 3); + assert_se(utf8_n_codepoints("zażółcić gęślą jaźń") == 19); + assert_se(utf8_n_codepoints("串") == 1); + assert_se(utf8_n_codepoints("") == 0); + assert_se(utf8_n_codepoints("…👊🔪💐…") == 5); + assert_se(utf8_n_codepoints("\xF1") == SIZE_MAX); +} + +TEST(utf8_console_width) { + assert_se(utf8_console_width("abc") == 3); + assert_se(utf8_console_width("zażółcić gęślą jaźń") == 19); + assert_se(utf8_console_width("串") == 2); + assert_se(utf8_console_width("") == 0); + assert_se(utf8_console_width("…👊🔪💐…") == 8); + assert_se(utf8_console_width("\xF1") == SIZE_MAX); +} + +TEST(utf8_to_utf16) { + FOREACH_STRING(p, + "abc", + "zażółcić gęślą jaźń", + "串", + "", + "…👊🔪💐…") { + + _cleanup_free_ char16_t *a = NULL; + _cleanup_free_ char *b = NULL; + + a = utf8_to_utf16(p, SIZE_MAX); + assert_se(a); + + b = utf16_to_utf8(a, SIZE_MAX); + assert_se(b); + assert_se(streq(p, b)); + } +} + +static int intro(void) { + log_show_color(true); + return EXIT_SUCCESS; +} + +DEFINE_TEST_MAIN_WITH_INTRO(LOG_INFO, intro); |