From 3590c846d4c2febbc05b4ad6b14a06edc549e453 Mon Sep 17 00:00:00 2001 From: "Manuel A. Fernandez Montecelo" Date: Fri, 27 May 2016 14:35:16 +0100 Subject: Imported Upstream version 0.9.6+really0.9.6 --- tests/unigbrk/test-u8-grapheme-prev.c | 80 +++++++++++++++++++++++++++++++++++ 1 file changed, 80 insertions(+) create mode 100644 tests/unigbrk/test-u8-grapheme-prev.c (limited to 'tests/unigbrk/test-u8-grapheme-prev.c') diff --git a/tests/unigbrk/test-u8-grapheme-prev.c b/tests/unigbrk/test-u8-grapheme-prev.c new file mode 100644 index 0000000..3f69180 --- /dev/null +++ b/tests/unigbrk/test-u8-grapheme-prev.c @@ -0,0 +1,80 @@ +/* Previous grapheme cluster test. + Copyright (C) 2010-2015 Free Software Foundation, Inc. + + This program is free software: you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with this program. If not, see . */ + +/* Written by Ben Pfaff , 2010. */ + +#include + +/* Specification. */ +#include + +#include +#include + +#include "macros.h" + +static void +test_u8_grapheme_prev (const char *input, size_t n, size_t len) +{ + const uint8_t *s = (const uint8_t *) input; + const uint8_t *end = s + n; + const uint8_t *prev = u8_grapheme_prev (end, s); + if (prev != end - len) + { + size_t i; + + if (prev == NULL) + fputs ("u8_grapheme_prev returned NULL", stderr); + else + fprintf (stderr, "u8_grapheme_prev skipped %zu bytes", end - prev); + fprintf (stderr, ", expected %zu:\n", len); + for (i = 0; i < n; i++) + fprintf (stderr, " %02x", s[i]); + putc ('\n', stderr); + abort (); + } +} + +int +main (void) +{ + static const uint8_t s[] = "abc"; + + /* Empty string. */ + ASSERT (u8_grapheme_prev (NULL, NULL) == NULL); + ASSERT (u8_grapheme_prev (s, s) == NULL); + + /* Standalone 1-unit graphemes. */ + test_u8_grapheme_prev ("a", 1, 1); + test_u8_grapheme_prev ("ab", 2, 1); + test_u8_grapheme_prev ("abc", 3, 1); + + /* Multi-unit, single code point graphemes. */ +#define HIRAGANA_A "\343\201\202" /* あ: Hiragana letter 'a'. */ + test_u8_grapheme_prev (HIRAGANA_A, 3, 3); + test_u8_grapheme_prev (HIRAGANA_A"x", 4, 1); + test_u8_grapheme_prev (HIRAGANA_A HIRAGANA_A, 6, 3); + + /* Combining accents. */ +#define GRAVE "\314\200" /* Combining grave accent. */ +#define ACUTE "\314\201" /* Combining acute accent. */ + test_u8_grapheme_prev ("e"ACUTE, 3, 3); + test_u8_grapheme_prev ("e"ACUTE GRAVE, 5, 5); + test_u8_grapheme_prev ("e"ACUTE"x", 4, 1); + test_u8_grapheme_prev ("e"ACUTE "e"ACUTE, 6, 3); + + return 0; +} -- cgit v1.2.3