# HG changeset patch
# User Bruno Haible <bruno@clisp.org>
# Date 1263087666 -3600
# Node ID 5925cd85b0bf308181f84da53d014f0d670b7421
# Parent  072b60aea2a142008e3802c1c2b876e93c426f97
Tests for module 'unistr/u8-uctomb'.

diff --git a/ChangeLog b/ChangeLog
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
 2010-01-09  Bruno Haible  <bruno@clisp.org>
 
+	Tests for module 'unistr/u8-uctomb'.
+	* modules/unistr/u8-uctomb-tests: New file.
+	* tests/unistr/test-u8-uctomb.c: New file.
+
 	Tests for module 'unistr/u32-mbtoucr'.
 	* modules/unistr/u32-mbtoucr-tests: New file.
 	* tests/unistr/test-u32-mbtoucr.c: New file.
diff --git a/modules/unistr/u8-uctomb-tests b/modules/unistr/u8-uctomb-tests
new file mode 100644
--- /dev/null
+++ b/modules/unistr/u8-uctomb-tests
@@ -0,0 +1,12 @@
+Files:
+tests/unistr/test-u8-uctomb.c
+tests/macros.h
+
+Depends-on:
+
+configure.ac:
+
+Makefile.am:
+TESTS += test-u8-uctomb
+check_PROGRAMS += test-u8-uctomb
+test_u8_uctomb_SOURCES = unistr/test-u8-uctomb.c
diff --git a/tests/unistr/test-u8-uctomb.c b/tests/unistr/test-u8-uctomb.c
new file mode 100644
--- /dev/null
+++ b/tests/unistr/test-u8-uctomb.c
@@ -0,0 +1,157 @@
+/* Test of u8_uctomb() function.
+   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 Bruno Haible <bruno@clisp.org>, 2010.  */
+
+#include <config.h>
+
+#include "unistr.h"
+
+#include "macros.h"
+
+#define MAGIC 0xBA
+
+int
+main ()
+{
+  /* Test ISO 646 character, in particular the NUL character.  */
+  {
+    ucs4_t uc;
+
+    for (uc = 0; uc < 0x80; uc++)
+      {
+        uint8_t buf[5] = { MAGIC, MAGIC, MAGIC, MAGIC, MAGIC };
+        int ret;
+
+        ret = u8_uctomb (buf, uc, 0);
+        ASSERT (ret == -2);
+        ASSERT (buf[0] == MAGIC);
+
+        ret = u8_uctomb (buf, uc, 1);
+        ASSERT (ret == 1);
+        ASSERT (buf[0] == uc);
+        ASSERT (buf[1] == MAGIC);
+      }
+  }
+
+  /* Test 2-byte character.  */
+  {
+    ucs4_t uc = 0x00D7;
+    uint8_t buf[5] = { MAGIC, MAGIC, MAGIC, MAGIC, MAGIC };
+    int ret;
+
+    ret = u8_uctomb (buf, uc, 0);
+    ASSERT (ret == -2);
+    ASSERT (buf[0] == MAGIC);
+
+    ret = u8_uctomb (buf, uc, 1);
+    ASSERT (ret == -2);
+    ASSERT (buf[0] == MAGIC);
+
+    ret = u8_uctomb (buf, uc, 2);
+    ASSERT (ret == 2);
+    ASSERT (buf[0] == 0xC3);
+    ASSERT (buf[1] == 0x97);
+    ASSERT (buf[2] == MAGIC);
+  }
+
+  /* Test 3-byte character.  */
+  {
+    ucs4_t uc = 0x20AC;
+    uint8_t buf[5] = { MAGIC, MAGIC, MAGIC, MAGIC, MAGIC };
+    int ret;
+
+    ret = u8_uctomb (buf, uc, 0);
+    ASSERT (ret == -2);
+    ASSERT (buf[0] == MAGIC);
+
+    ret = u8_uctomb (buf, uc, 1);
+    ASSERT (ret == -2);
+    ASSERT (buf[0] == MAGIC);
+
+    ret = u8_uctomb (buf, uc, 2);
+    ASSERT (ret == -2);
+    ASSERT (buf[0] == MAGIC);
+    ASSERT (buf[1] == MAGIC);
+
+    ret = u8_uctomb (buf, uc, 3);
+    ASSERT (ret == 3);
+    ASSERT (buf[0] == 0xE2);
+    ASSERT (buf[1] == 0x82);
+    ASSERT (buf[2] == 0xAC);
+    ASSERT (buf[3] == MAGIC);
+  }
+
+  /* Test 4-byte character.  */
+  {
+    ucs4_t uc = 0x10FFFD;
+    uint8_t buf[5] = { MAGIC, MAGIC, MAGIC, MAGIC, MAGIC };
+    int ret;
+
+    ret = u8_uctomb (buf, uc, 0);
+    ASSERT (ret == -2);
+    ASSERT (buf[0] == MAGIC);
+
+    ret = u8_uctomb (buf, uc, 1);
+    ASSERT (ret == -2);
+    ASSERT (buf[0] == MAGIC);
+
+    ret = u8_uctomb (buf, uc, 2);
+    ASSERT (ret == -2);
+    ASSERT (buf[0] == MAGIC);
+    ASSERT (buf[1] == MAGIC);
+
+    ret = u8_uctomb (buf, uc, 3);
+    ASSERT (ret == -2);
+    ASSERT (buf[0] == MAGIC);
+    ASSERT (buf[1] == MAGIC);
+    ASSERT (buf[2] == MAGIC);
+
+    ret = u8_uctomb (buf, uc, 4);
+    ASSERT (ret == 4);
+    ASSERT (buf[0] == 0xF4);
+    ASSERT (buf[1] == 0x8F);
+    ASSERT (buf[2] == 0xBF);
+    ASSERT (buf[3] == 0xBD);
+    ASSERT (buf[4] == MAGIC);
+  }
+
+  /* Test invalid characters.  */
+  {
+    ucs4_t invalid[] = { 0x110000, 0xD800, 0xDBFF, 0xDC00, 0xDFFF };
+    uint8_t buf[5] = { MAGIC, MAGIC, MAGIC, MAGIC, MAGIC };
+    size_t i;
+
+    for (i = 0; i < SIZEOF (invalid); i++)
+      {
+        ucs4_t uc = invalid[i];
+        int n;
+
+        for (n = 0; n <= 4; n++)
+          {
+            int ret = u8_uctomb (buf, uc, n);
+            ASSERT (ret == -1);
+            ASSERT (buf[0] == MAGIC);
+            ASSERT (buf[1] == MAGIC);
+            ASSERT (buf[2] == MAGIC);
+            ASSERT (buf[3] == MAGIC);
+            ASSERT (buf[4] == MAGIC);
+          }
+      }
+  }
+
+  return 0;
+}