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-rw-r--r--gl/tests/test-mbsalign.c93
1 files changed, 93 insertions, 0 deletions
diff --git a/gl/tests/test-mbsalign.c b/gl/tests/test-mbsalign.c
new file mode 100644
index 000000000..9f8935732
--- /dev/null
+++ b/gl/tests/test-mbsalign.c
@@ -0,0 +1,93 @@
+/* Test that mbsalign works as advertised.
+ Copyright (C) 2010 Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+/* Written by Pádraig Brady. */
+
+#include <config.h>
+
+#include "mbsalign.h"
+#include "macros.h"
+#include <stdlib.h>
+#include <locale.h>
+
+int
+main (void)
+{
+ char dest[4 * 16 + 1];
+ size_t width, n;
+
+ /* Test unibyte truncation. */
+ width = 4;
+ n = mbsalign ("t\tés", dest, sizeof dest, &width, MBS_ALIGN_LEFT, 0);
+ ASSERT (n == 4);
+
+ /* Test center alignment. */
+ width = 4;
+ n = mbsalign ("es", dest, sizeof dest, &width, MBS_ALIGN_CENTER, 0);
+ ASSERT (*dest == ' ' && *(dest + n - 1) == ' ');
+
+ if (setlocale (LC_ALL, "en_US.UTF8"))
+ {
+ /* Check invalid input is flagged. */
+ width = 4;
+ n = mbsalign ("t\xe1\xe2s", dest, sizeof dest, &width, MBS_ALIGN_LEFT, 0);
+ ASSERT (n == (size_t) -1);
+
+ /* Check invalid input is treated as unibyte */
+ width = 4;
+ n = mbsalign ("t\xe1\xe2s", dest, sizeof dest, &width,
+ MBS_ALIGN_LEFT, MBA_UNIBYTE_FALLBACK);
+ ASSERT (n == 4);
+
+ /* Test multibyte center alignment. */
+ width = 4;
+ n = mbsalign ("és", dest, sizeof dest, &width, MBS_ALIGN_CENTER, 0);
+ ASSERT (*dest == ' ' && *(dest + n - 1) == ' ');
+
+ /* Test multibyte left alignment. */
+ width = 4;
+ n = mbsalign ("és", dest, sizeof dest, &width, MBS_ALIGN_LEFT, 0);
+ ASSERT (*(dest + n - 1) == ' ' && *(dest + n - 2) == ' ');
+
+ /* Test multibyte right alignment. */
+ width = 4;
+ n = mbsalign ("és", dest, sizeof dest, &width, MBS_ALIGN_RIGHT, 0);
+ ASSERT (*(dest) == ' ' && *(dest + 1) == ' ');
+
+ /* multibyte multicell truncation. */
+ width = 4; /* cells */
+ n = mbsalign ("日月火水", dest, sizeof dest, &width,
+ MBS_ALIGN_LEFT, 0);
+ ASSERT (n == 6); /* 2 characters */
+
+ /* multibyte unicell truncation. */
+ width = 3; /* cells */
+ n = mbsalign ("¹²³⁴", dest, sizeof dest, &width, MBS_ALIGN_LEFT, 0);
+ ASSERT (n == 6); /* 3 characters */
+
+ /* Check independence from dest buffer. */
+ width = 4; /* cells */
+ n = mbsalign ("¹²³⁴", dest, 0, &width, MBS_ALIGN_LEFT, 0);
+ ASSERT (n == 9); /* 4 characters */
+
+ /* Check that width is updated with cells required before padding. */
+ width = 4; /* cells */
+ n = mbsalign ("¹²³", dest, 0, &width, MBS_ALIGN_LEFT, 0);
+ ASSERT (width == 3);
+ }
+
+ return 0;
+}