Imported Upstream version 0.9.1upstream/0.9.1

1 files changed, 922 insertions, 0 deletions

diff --git a/tests/test-striconveh.c b/tests/test-striconveh.c
new file mode 100644
index 00000000..16a16f46
--- /dev/null
+++ b/tests/test-striconveh.c
@@ -0,0 +1,922 @@
+/* Test of character set conversion with error handling.
+   Copyright (C) 2007-2009 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>, 2007.  */
+
+#include <config.h>
+
+#include "striconveh.h"
+
+#if HAVE_ICONV
+# include <iconv.h>
+#endif
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define SIZEOF(array) (sizeof (array) / sizeof (array[0]))
+#define ASSERT(expr) \
+  do									     \
+    {									     \
+      if (!(expr))							     \
+        {								     \
+          fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
+          fflush (stderr);						     \
+          abort ();							     \
+        }								     \
+    }									     \
+  while (0)
+
+/* Magic number for detecting bounds violations.  */
+#define MAGIC 0x1983EFF1
+
+static size_t *
+new_offsets (size_t n)
+{
+  size_t *offsets = (size_t *) malloc ((n + 1) * sizeof (size_t));
+  offsets[n] = MAGIC;
+  return offsets;
+}
+
+int
+main ()
+{
+  static enum iconv_ilseq_handler handlers[] =
+    { iconveh_error, iconveh_question_mark, iconveh_escape_sequence };
+  size_t h;
+  size_t o;
+  size_t i;
+
+#if HAVE_ICONV
+  /* Assume that iconv() supports at least the encodings ASCII, ISO-8859-1,
+     ISO-8859-2, and UTF-8.  */
+  iconv_t cd_88591_to_88592 = iconv_open ("ISO-8859-2", "ISO-8859-1");
+  iconv_t cd_88592_to_88591 = iconv_open ("ISO-8859-1", "ISO-8859-2");
+  iconv_t cd_88591_to_utf8 = iconv_open ("UTF-8", "ISO-8859-1");
+  iconv_t cd_utf8_to_88591 = iconv_open ("ISO-8859-1", "UTF-8");
+  iconv_t cd_88592_to_utf8 = iconv_open ("UTF-8", "ISO-8859-2");
+  iconv_t cd_utf8_to_88592 = iconv_open ("ISO-8859-2", "UTF-8");
+  iconv_t cd_utf7_to_utf8 = iconv_open ("UTF-8", "UTF-7");
+
+  ASSERT (cd_88591_to_utf8 != (iconv_t)(-1));
+  ASSERT (cd_utf8_to_88591 != (iconv_t)(-1));
+  ASSERT (cd_88592_to_utf8 != (iconv_t)(-1));
+  ASSERT (cd_utf8_to_88592 != (iconv_t)(-1));
+
+  /* ------------------------ Test mem_cd_iconveh() ------------------------ */
+
+  /* Test conversion from ISO-8859-2 to ISO-8859-1 with no errors.  */
+  for (h = 0; h < SIZEOF (handlers); h++)
+    {
+      enum iconv_ilseq_handler handler = handlers[h];
+      static const char input[] = "\304rger mit b\366sen B\374bchen ohne Augenma\337";
+      static const char expected[] = "\304rger mit b\366sen B\374bchen ohne Augenma\337";
+      for (o = 0; o < 2; o++)
+	{
+	  size_t *offsets = (o ? new_offsets (strlen (input)) : NULL);
+	  char *result = NULL;
+	  size_t length = 0;
+	  int retval = mem_cd_iconveh (input, strlen (input),
+				       cd_88592_to_88591,
+				       cd_88592_to_utf8, cd_utf8_to_88591,
+				       handler,
+				       offsets,
+				       &result, &length);
+	  ASSERT (retval == 0);
+	  ASSERT (length == strlen (expected));
+	  ASSERT (result != NULL && memcmp (result, expected, strlen (expected)) == 0);
+	  if (o)
+	    {
+	      for (i = 0; i < 37; i++)
+		ASSERT (offsets[i] == i);
+	      ASSERT (offsets[37] == MAGIC);
+	      free (offsets);
+	    }
+	  free (result);
+	}
+    }
+
+  /* Test conversion from ISO-8859-2 to ISO-8859-1 with EILSEQ.  */
+  for (h = 0; h < SIZEOF (handlers); h++)
+    {
+      enum iconv_ilseq_handler handler = handlers[h];
+      static const char input[] = "Rafa\263 Maszkowski"; /* Rafał Maszkowski */
+      for (o = 0; o < 2; o++)
+	{
+	  size_t *offsets = (o ? new_offsets (strlen (input)) : NULL);
+	  char *result = NULL;
+	  size_t length = 0;
+	  int retval = mem_cd_iconveh (input, strlen (input),
+				       cd_88592_to_88591,
+				       cd_88592_to_utf8, cd_utf8_to_88591,
+				       handler,
+				       offsets,
+				       &result, &length);
+	  switch (handler)
+	    {
+	    case iconveh_error:
+	      ASSERT (retval == -1 && errno == EILSEQ);
+	      ASSERT (result == NULL);
+	      if (o)
+		free (offsets);
+	      break;
+	    case iconveh_question_mark:
+	      {
+		static const char expected[] = "Rafa? Maszkowski";
+		ASSERT (retval == 0);
+		ASSERT (length == strlen (expected));
+		ASSERT (result != NULL && memcmp (result, expected, strlen (expected)) == 0);
+		if (o)
+		  {
+		    for (i = 0; i < 16; i++)
+		      ASSERT (offsets[i] == i);
+		    ASSERT (offsets[16] == MAGIC);
+		    free (offsets);
+		  }
+		free (result);
+	      }
+	      break;
+	    case iconveh_escape_sequence:
+	      {
+		static const char expected[] = "Rafa\\u0142 Maszkowski";
+		ASSERT (retval == 0);
+		ASSERT (length == strlen (expected));
+		ASSERT (result != NULL && memcmp (result, expected, strlen (expected)) == 0);
+		if (o)
+		  {
+		    for (i = 0; i < 16; i++)
+		      ASSERT (offsets[i] == (i < 5 ? i :
+					     i + 5));
+		    ASSERT (offsets[16] == MAGIC);
+		    free (offsets);
+		  }
+		free (result);
+	      }
+	      break;
+	    }
+	}
+    }
+
+  /* Test conversion from ISO-8859-1 to UTF-8 with no errors.  */
+  for (h = 0; h < SIZEOF (handlers); h++)
+    {
+      enum iconv_ilseq_handler handler = handlers[h];
+      static const char input[] = "\304rger mit b\366sen B\374bchen ohne Augenma\337";
+      static const char expected[] = "\303\204rger mit b\303\266sen B\303\274bchen ohne Augenma\303\237";
+      for (o = 0; o < 2; o++)
+	{
+	  size_t *offsets = (o ? new_offsets (strlen (input)) : NULL);
+	  char *result = NULL;
+	  size_t length = 0;
+	  int retval = mem_cd_iconveh (input, strlen (input),
+				       cd_88591_to_utf8,
+				       cd_88591_to_utf8, (iconv_t)(-1),
+				       handler,
+				       offsets,
+				       &result, &length);
+	  ASSERT (retval == 0);
+	  ASSERT (length == strlen (expected));
+	  ASSERT (result != NULL && memcmp (result, expected, strlen (expected)) == 0);
+	  if (o)
+	    {
+	      for (i = 0; i < 37; i++)
+		ASSERT (offsets[i] == (i < 1 ? i :
+				       i < 12 ? i + 1 :
+				       i < 18 ? i + 2 :
+				       i + 3));
+	      ASSERT (offsets[37] == MAGIC);
+	      free (offsets);
+	    }
+	  free (result);
+	}
+    }
+
+  /* Test conversion from UTF-8 to ISO-8859-1 with no errors.  */
+  for (h = 0; h < SIZEOF (handlers); h++)
+    {
+      enum iconv_ilseq_handler handler = handlers[h];
+      static const char input[] = "\303\204rger mit b\303\266sen B\303\274bchen ohne Augenma\303\237";
+      static const char expected[] = "\304rger mit b\366sen B\374bchen ohne Augenma\337";
+      for (o = 0; o < 2; o++)
+	{
+	  size_t *offsets = (o ? new_offsets (strlen (input)) : NULL);
+	  char *result = NULL;
+	  size_t length = 0;
+	  int retval = mem_cd_iconveh (input, strlen (input),
+				       cd_utf8_to_88591,
+				       (iconv_t)(-1), cd_utf8_to_88591,
+				       handler,
+				       offsets,
+				       &result, &length);
+	  ASSERT (retval == 0);
+	  ASSERT (length == strlen (expected));
+	  ASSERT (result != NULL && memcmp (result, expected, strlen (expected)) == 0);
+	  if (o)
+	    {
+	      for (i = 0; i < 41; i++)
+		ASSERT (offsets[i] == (i < 1 ? i :
+				       i == 1 ? (size_t)(-1) :
+				       i < 13 ? i - 1 :
+				       i == 13 ? (size_t)(-1) :
+				       i < 20 ? i - 2 :
+				       i == 20 ? (size_t)(-1) :
+				       i < 40 ? i - 3 :
+				       (size_t)(-1)));
+	      ASSERT (offsets[41] == MAGIC);
+	      free (offsets);
+	    }
+	  free (result);
+	}
+    }
+
+  /* Test conversion from UTF-8 to ISO-8859-1 with EILSEQ.  */
+  for (h = 0; h < SIZEOF (handlers); h++)
+    {
+      enum iconv_ilseq_handler handler = handlers[h];
+      static const char input[] = "Rafa\305\202 Maszkowski"; /* Rafał Maszkowski */
+      for (o = 0; o < 2; o++)
+	{
+	  size_t *offsets = (o ? new_offsets (strlen (input)) : NULL);
+	  char *result = NULL;
+	  size_t length = 0;
+	  int retval = mem_cd_iconveh (input, strlen (input),
+				       cd_utf8_to_88591,
+				       (iconv_t)(-1), cd_utf8_to_88591,
+				       handler,
+				       offsets,
+				       &result, &length);
+	  switch (handler)
+	    {
+	    case iconveh_error:
+	      ASSERT (retval == -1 && errno == EILSEQ);
+	      ASSERT (result == NULL);
+	      if (o)
+		free (offsets);
+	      break;
+	    case iconveh_question_mark:
+	      {
+		static const char expected[] = "Rafa? Maszkowski";
+		ASSERT (retval == 0);
+		ASSERT (length == strlen (expected));
+		ASSERT (result != NULL && memcmp (result, expected, strlen (expected)) == 0);
+		if (o)
+		  {
+		    for (i = 0; i < 17; i++)
+		      ASSERT (offsets[i] == (i < 5 ? i :
+					     i == 5 ? (size_t)(-1) :
+					     i - 1));
+		    ASSERT (offsets[17] == MAGIC);
+		    free (offsets);
+		  }
+		free (result);
+	      }
+	      break;
+	    case iconveh_escape_sequence:
+	      {
+		static const char expected[] = "Rafa\\u0142 Maszkowski";
+		ASSERT (retval == 0);
+		ASSERT (length == strlen (expected));
+		ASSERT (result != NULL && memcmp (result, expected, strlen (expected)) == 0);
+		if (o)
+		  {
+		    for (i = 0; i < 17; i++)
+		      ASSERT (offsets[i] == (i < 5 ? i :
+					     i == 5 ? (size_t)(-1) :
+					     i + 4));
+		    ASSERT (offsets[17] == MAGIC);
+		    free (offsets);
+		  }
+		free (result);
+	      }
+	      break;
+	    }
+	}
+    }
+
+  /* Test conversion from UTF-8 to ISO-8859-1 with EINVAL.  */
+  for (h = 0; h < SIZEOF (handlers); h++)
+    {
+      enum iconv_ilseq_handler handler = handlers[h];
+      static const char input[] = "\342";
+      for (o = 0; o < 2; o++)
+	{
+	  size_t *offsets = (o ? new_offsets (strlen (input)) : NULL);
+	  char *result = NULL;
+	  size_t length = 0;
+	  int retval = mem_cd_iconveh (input, strlen (input),
+				       cd_utf8_to_88591,
+				       (iconv_t)(-1), cd_utf8_to_88591,
+				       handler,
+				       offsets,
+				       &result, &length);
+	  ASSERT (retval == 0);
+	  ASSERT (length == 0);
+	  if (o)
+	    {
+	      ASSERT (offsets[0] == 0);
+	      ASSERT (offsets[1] == MAGIC);
+	      free (offsets);
+	    }
+	  free (result);
+	}
+    }
+
+  if (cd_utf7_to_utf8 != (iconv_t)(-1))
+    {
+      /* Disabled on Solaris, because Solaris 9 iconv() is buggy: it returns
+	 -1 / EILSEQ when converting the 7th byte of the input "+VDLYP9hA".  */
+# if !(defined __sun && !defined _LIBICONV_VERSION)
+      /* Test conversion from UTF-7 to UTF-8 with EINVAL.  */
+      for (h = 0; h < SIZEOF (handlers); h++)
+	{
+	  enum iconv_ilseq_handler handler = handlers[h];
+	  /* This is base64 encoded 0x54 0x32 0xD8 0x3F 0xD8 0x40.  It would
+	     convert to U+5432 U+D83F U+D840 but these are Unicode surrogates.  */
+	  static const char input[] = "+VDLYP9hA";
+	  static const char expected1[] = "\345\220\262"; /* 吲 glibc */
+	  static const char expected2[] = ""; /* libiconv */
+	  char *result = NULL;
+	  size_t length = 0;
+	  int retval = mem_cd_iconveh (input, 7,
+				       cd_utf7_to_utf8,
+				       cd_utf7_to_utf8, (iconv_t)(-1),
+				       handler,
+				       NULL,
+				       &result, &length);
+	  ASSERT (retval == 0);
+	  ASSERT (length == strlen (expected1) || length == strlen (expected2));
+	  ASSERT (result != NULL);
+	  if (length == strlen (expected1))
+	    ASSERT (memcmp (result, expected1, strlen (expected1)) == 0);
+	  else
+	    ASSERT (memcmp (result, expected2, strlen (expected2)) == 0);
+	  free (result);
+	}
+
+      /* Test conversion from UTF-7 to UTF-8 with EILSEQ.  */
+      for (h = 0; h < SIZEOF (handlers); h++)
+	{
+	  enum iconv_ilseq_handler handler = handlers[h];
+	  /* This is base64 encoded 0xD8 0x3F 0xD8 0x40 0xD8 0x41.  It would
+	     convert to U+D83F U+D840 U+D841 but these are Unicode surrogates.  */
+	  static const char input[] = "+2D/YQNhB";
+	  char *result = NULL;
+	  size_t length = 0;
+	  int retval = mem_cd_iconveh (input, strlen (input),
+				       cd_utf7_to_utf8,
+				       cd_utf7_to_utf8, (iconv_t)(-1),
+				       handler,
+				       NULL,
+				       &result, &length);
+	  switch (handler)
+	    {
+	    case iconveh_error:
+	      ASSERT (retval == -1 && errno == EILSEQ);
+	      ASSERT (result == NULL);
+	      break;
+	    case iconveh_question_mark:
+	    case iconveh_escape_sequence:
+	      {
+		/* glibc result */
+		static const char expected1[] = "?????";
+		/* libiconv <= 1.12 result */
+		static const char expected2[] = "?2D/YQNhB";
+		/* libiconv behaviour changed in version 1.13: the result is
+		   '?' U+0FF6 U+1036; this is U+D83F U+D840 U+D841 shifted left
+		   by 6 bits.  */
+		static const char expected3[] = "?\340\277\266\341\200\266";
+		ASSERT (retval == 0);
+		ASSERT (length == strlen (expected1)
+			|| length == strlen (expected2)
+			|| length == strlen (expected3));
+		ASSERT (result != NULL);
+		if (length == strlen (expected1))
+		  ASSERT (memcmp (result, expected1, strlen (expected1)) == 0);
+		else if (length == strlen (expected2))
+		  ASSERT (memcmp (result, expected2, strlen (expected2)) == 0);
+		else
+		  ASSERT (memcmp (result, expected3, strlen (expected3)) == 0);
+		free (result);
+	      }
+	      break;
+	    }
+	}
+# endif
+    }
+
+  /* ------------------------ Test str_cd_iconveh() ------------------------ */
+
+  /* Test conversion from ISO-8859-2 to ISO-8859-1 with no errors.  */
+  for (h = 0; h < SIZEOF (handlers); h++)
+    {
+      enum iconv_ilseq_handler handler = handlers[h];
+      static const char input[] = "\304rger mit b\366sen B\374bchen ohne Augenma\337";
+      static const char expected[] = "\304rger mit b\366sen B\374bchen ohne Augenma\337";
+      char *result = str_cd_iconveh (input,
+				     cd_88592_to_88591,
+				     cd_88592_to_utf8, cd_utf8_to_88591,
+				     handler);
+      ASSERT (result != NULL);
+      ASSERT (strcmp (result, expected) == 0);
+      free (result);
+    }
+
+  /* Test conversion from ISO-8859-2 to ISO-8859-1 with EILSEQ.  */
+  for (h = 0; h < SIZEOF (handlers); h++)
+    {
+      enum iconv_ilseq_handler handler = handlers[h];
+      static const char input[] = "Rafa\263 Maszkowski"; /* Rafał Maszkowski */
+      char *result = str_cd_iconveh (input,
+				     cd_88592_to_88591,
+				     cd_88592_to_utf8, cd_utf8_to_88591,
+				     handler);
+      switch (handler)
+	{
+	case iconveh_error:
+	  ASSERT (result == NULL && errno == EILSEQ);
+	  break;
+	case iconveh_question_mark:
+	  {
+	    static const char expected[] = "Rafa? Maszkowski";
+	    ASSERT (result != NULL);
+	    ASSERT (strcmp (result, expected) == 0);
+	    free (result);
+	  }
+	  break;
+	case iconveh_escape_sequence:
+	  {
+	    static const char expected[] = "Rafa\\u0142 Maszkowski";
+	    ASSERT (result != NULL);
+	    ASSERT (strcmp (result, expected) == 0);
+	    free (result);
+	  }
+	  break;
+	}
+    }
+
+  /* Test conversion from ISO-8859-1 to UTF-8 with no errors.  */
+  for (h = 0; h < SIZEOF (handlers); h++)
+    {
+      enum iconv_ilseq_handler handler = handlers[h];
+      static const char input[] = "\304rger mit b\366sen B\374bchen ohne Augenma\337";
+      static const char expected[] = "\303\204rger mit b\303\266sen B\303\274bchen ohne Augenma\303\237";
+      char *result = str_cd_iconveh (input,
+				     cd_88591_to_utf8,
+				     cd_88591_to_utf8, (iconv_t)(-1),
+				     handler);
+      ASSERT (result != NULL);
+      ASSERT (strcmp (result, expected) == 0);
+      free (result);
+    }
+
+  /* Test conversion from UTF-8 to ISO-8859-1 with no errors.  */
+  for (h = 0; h < SIZEOF (handlers); h++)
+    {
+      enum iconv_ilseq_handler handler = handlers[h];
+      static const char input[] = "\303\204rger mit b\303\266sen B\303\274bchen ohne Augenma\303\237";
+      static const char expected[] = "\304rger mit b\366sen B\374bchen ohne Augenma\337";
+      char *result = str_cd_iconveh (input,
+				     cd_utf8_to_88591,
+				     (iconv_t)(-1), cd_utf8_to_88591,
+				     handler);
+      ASSERT (result != NULL);
+      ASSERT (strcmp (result, expected) == 0);
+      free (result);
+    }
+
+  /* Test conversion from UTF-8 to ISO-8859-1 with EILSEQ.  */
+  for (h = 0; h < SIZEOF (handlers); h++)
+    {
+      enum iconv_ilseq_handler handler = handlers[h];
+      static const char input[] = "Costs: 27 \342\202\254"; /* EURO SIGN */
+      char *result = str_cd_iconveh (input,
+				     cd_utf8_to_88591,
+				     (iconv_t)(-1), cd_utf8_to_88591,
+				     handler);
+      switch (handler)
+	{
+	case iconveh_error:
+	  ASSERT (result == NULL && errno == EILSEQ);
+	  break;
+	case iconveh_question_mark:
+	  {
+	    static const char expected[] = "Costs: 27 ?";
+	    ASSERT (result != NULL);
+	    ASSERT (strcmp (result, expected) == 0);
+	    free (result);
+	  }
+	  break;
+	case iconveh_escape_sequence:
+	  {
+	    static const char expected[] = "Costs: 27 \\u20AC";
+	    ASSERT (result != NULL);
+	    ASSERT (strcmp (result, expected) == 0);
+	    free (result);
+	  }
+	  break;
+	}
+    }
+
+  /* Test conversion from UTF-8 to ISO-8859-1 with EINVAL.  */
+  for (h = 0; h < SIZEOF (handlers); h++)
+    {
+      enum iconv_ilseq_handler handler = handlers[h];
+      static const char input[] = "\342";
+      char *result = str_cd_iconveh (input,
+				     cd_utf8_to_88591,
+				     (iconv_t)(-1), cd_utf8_to_88591,
+				     handler);
+      ASSERT (result != NULL);
+      ASSERT (strcmp (result, "") == 0);
+      free (result);
+    }
+
+  if (cd_88591_to_88592 != (iconv_t)(-1))
+    iconv_close (cd_88591_to_88592);
+  if (cd_88592_to_88591 != (iconv_t)(-1))
+    iconv_close (cd_88592_to_88591);
+  iconv_close (cd_88591_to_utf8);
+  iconv_close (cd_utf8_to_88591);
+  iconv_close (cd_88592_to_utf8);
+  iconv_close (cd_utf8_to_88592);
+
+  /* ------------------------- Test mem_iconveh() ------------------------- */
+
+  /* Test conversion from ISO-8859-2 to ISO-8859-1 with no errors.  */
+  for (h = 0; h < SIZEOF (handlers); h++)
+    {
+      enum iconv_ilseq_handler handler = handlers[h];
+      static const char input[] = "\304rger mit b\366sen B\374bchen ohne Augenma\337";
+      static const char expected[] = "\304rger mit b\366sen B\374bchen ohne Augenma\337";
+      for (o = 0; o < 2; o++)
+	{
+	  size_t *offsets = (o ? new_offsets (strlen (input)) : NULL);
+	  char *result = NULL;
+	  size_t length = 0;
+	  int retval = mem_iconveh (input, strlen (input),
+				    "ISO-8859-2", "ISO-8859-1",
+				    handler,
+				    offsets,
+				    &result, &length);
+	  ASSERT (retval == 0);
+	  ASSERT (length == strlen (expected));
+	  ASSERT (result != NULL && memcmp (result, expected, strlen (expected)) == 0);
+	  if (o)
+	    {
+	      for (i = 0; i < 37; i++)
+		ASSERT (offsets[i] == i);
+	      ASSERT (offsets[37] == MAGIC);
+	      free (offsets);
+	    }
+	  free (result);
+	}
+    }
+
+  /* Test conversion from ISO-8859-2 to ISO-8859-1 with EILSEQ.  */
+  for (h = 0; h < SIZEOF (handlers); h++)
+    {
+      enum iconv_ilseq_handler handler = handlers[h];
+      static const char input[] = "Rafa\263 Maszkowski"; /* Rafał Maszkowski */
+      for (o = 0; o < 2; o++)
+	{
+	  size_t *offsets = (o ? new_offsets (strlen (input)) : NULL);
+	  char *result = NULL;
+	  size_t length = 0;
+	  int retval = mem_iconveh (input, strlen (input),
+				    "ISO-8859-2", "ISO-8859-1",
+				    handler,
+				    offsets,
+				    &result, &length);
+	  switch (handler)
+	    {
+	    case iconveh_error:
+	      ASSERT (retval == -1 && errno == EILSEQ);
+	      ASSERT (result == NULL);
+	      if (o)
+		free (offsets);
+	      break;
+	    case iconveh_question_mark:
+	      {
+		static const char expected[] = "Rafa? Maszkowski";
+		ASSERT (retval == 0);
+		ASSERT (length == strlen (expected));
+		ASSERT (result != NULL && memcmp (result, expected, strlen (expected)) == 0);
+		if (o)
+		  {
+		    for (i = 0; i < 16; i++)
+		      ASSERT (offsets[i] == i);
+		    ASSERT (offsets[16] == MAGIC);
+		    free (offsets);
+		  }
+		free (result);
+	      }
+	      break;
+	    case iconveh_escape_sequence:
+	      {
+		static const char expected[] = "Rafa\\u0142 Maszkowski";
+		ASSERT (retval == 0);
+		ASSERT (length == strlen (expected));
+		ASSERT (result != NULL && memcmp (result, expected, strlen (expected)) == 0);
+		if (o)
+		  {
+		    for (i = 0; i < 16; i++)
+		      ASSERT (offsets[i] == (i < 5 ? i :
+					     i + 5));
+		    ASSERT (offsets[16] == MAGIC);
+		    free (offsets);
+		  }
+		free (result);
+	      }
+	      break;
+	    }
+	}
+    }
+
+  /* Test conversion from ISO-8859-1 to UTF-8 with no errors.  */
+  for (h = 0; h < SIZEOF (handlers); h++)
+    {
+      enum iconv_ilseq_handler handler = handlers[h];
+      static const char input[] = "\304rger mit b\366sen B\374bchen ohne Augenma\337";
+      static const char expected[] = "\303\204rger mit b\303\266sen B\303\274bchen ohne Augenma\303\237";
+      for (o = 0; o < 2; o++)
+	{
+	  size_t *offsets = (o ? new_offsets (strlen (input)) : NULL);
+	  char *result = NULL;
+	  size_t length = 0;
+	  int retval = mem_iconveh (input, strlen (input),
+				    "ISO-8859-1", "UTF-8",
+				    handler,
+				    offsets,
+				    &result, &length);
+	  ASSERT (retval == 0);
+	  ASSERT (length == strlen (expected));
+	  ASSERT (result != NULL && memcmp (result, expected, strlen (expected)) == 0);
+	  if (o)
+	    {
+	      for (i = 0; i < 37; i++)
+		ASSERT (offsets[i] == (i < 1 ? i :
+				       i < 12 ? i + 1 :
+				       i < 18 ? i + 2 :
+				       i + 3));
+	      ASSERT (offsets[37] == MAGIC);
+	      free (offsets);
+	    }
+	  free (result);
+	}
+    }
+
+  /* Test conversion from UTF-8 to ISO-8859-1 with no errors.  */
+  for (h = 0; h < SIZEOF (handlers); h++)
+    {
+      enum iconv_ilseq_handler handler = handlers[h];
+      static const char input[] = "\303\204rger mit b\303\266sen B\303\274bchen ohne Augenma\303\237";
+      static const char expected[] = "\304rger mit b\366sen B\374bchen ohne Augenma\337";
+      for (o = 0; o < 2; o++)
+	{
+	  size_t *offsets = (o ? new_offsets (strlen (input)) : NULL);
+	  char *result = NULL;
+	  size_t length = 0;
+	  int retval = mem_iconveh (input, strlen (input),
+				    "UTF-8", "ISO-8859-1",
+				    handler,
+				    offsets,
+				    &result, &length);
+	  ASSERT (retval == 0);
+	  ASSERT (length == strlen (expected));
+	  ASSERT (result != NULL && memcmp (result, expected, strlen (expected)) == 0);
+	  if (o)
+	    {
+	      for (i = 0; i < 41; i++)
+		ASSERT (offsets[i] == (i < 1 ? i :
+				       i == 1 ? (size_t)(-1) :
+				       i < 13 ? i - 1 :
+				       i == 13 ? (size_t)(-1) :
+				       i < 20 ? i - 2 :
+				       i == 20 ? (size_t)(-1) :
+				       i < 40 ? i - 3 :
+				       (size_t)(-1)));
+	      ASSERT (offsets[41] == MAGIC);
+	      free (offsets);
+	    }
+	  free (result);
+	}
+    }
+
+  /* Test conversion from UTF-8 to ISO-8859-1 with EILSEQ.  */
+  for (h = 0; h < SIZEOF (handlers); h++)
+    {
+      enum iconv_ilseq_handler handler = handlers[h];
+      static const char input[] = "Rafa\305\202 Maszkowski"; /* Rafał Maszkowski */
+      for (o = 0; o < 2; o++)
+	{
+	  size_t *offsets = (o ? new_offsets (strlen (input)) : NULL);
+	  char *result = NULL;
+	  size_t length = 0;
+	  int retval = mem_iconveh (input, strlen (input),
+				    "UTF-8", "ISO-8859-1",
+				    handler,
+				    offsets,
+				    &result, &length);
+	  switch (handler)
+	    {
+	    case iconveh_error:
+	      ASSERT (retval == -1 && errno == EILSEQ);
+	      ASSERT (result == NULL);
+	      if (o)
+		free (offsets);
+	      break;
+	    case iconveh_question_mark:
+	      {
+		static const char expected[] = "Rafa? Maszkowski";
+		ASSERT (retval == 0);
+		ASSERT (length == strlen (expected));
+		ASSERT (result != NULL && memcmp (result, expected, strlen (expected)) == 0);
+		if (o)
+		  {
+		    for (i = 0; i < 17; i++)
+		      ASSERT (offsets[i] == (i < 5 ? i :
+					     i == 5 ? (size_t)(-1) :
+					     i - 1));
+		    ASSERT (offsets[17] == MAGIC);
+		    free (offsets);
+		  }
+		free (result);
+	      }
+	      break;
+	    case iconveh_escape_sequence:
+	      {
+		static const char expected[] = "Rafa\\u0142 Maszkowski";
+		ASSERT (retval == 0);
+		ASSERT (length == strlen (expected));
+		ASSERT (result != NULL && memcmp (result, expected, strlen (expected)) == 0);
+		if (o)
+		  {
+		    for (i = 0; i < 17; i++)
+		      ASSERT (offsets[i] == (i < 5 ? i :
+					     i == 5 ? (size_t)(-1) :
+					     i + 4));
+		    ASSERT (offsets[17] == MAGIC);
+		    free (offsets);
+		  }
+		free (result);
+	      }
+	      break;
+	    }
+	}
+    }
+
+  /* Test conversion from UTF-8 to ISO-8859-1 with EINVAL.  */
+  for (h = 0; h < SIZEOF (handlers); h++)
+    {
+      enum iconv_ilseq_handler handler = handlers[h];
+      static const char input[] = "\342";
+      for (o = 0; o < 2; o++)
+	{
+	  size_t *offsets = (o ? new_offsets (strlen (input)) : NULL);
+	  char *result = NULL;
+	  size_t length = 0;
+	  int retval = mem_iconveh (input, strlen (input),
+				    "UTF-8", "ISO-8859-1",
+				    handler,
+				    offsets,
+				    &result, &length);
+	  ASSERT (retval == 0);
+	  ASSERT (length == 0);
+	  if (o)
+	    {
+	      ASSERT (offsets[0] == 0);
+	      ASSERT (offsets[1] == MAGIC);
+	      free (offsets);
+	    }
+	  free (result);
+	}
+    }
+
+  /* ------------------------- Test str_iconveh() ------------------------- */
+
+  /* Test conversion from ISO-8859-2 to ISO-8859-1 with no errors.  */
+  for (h = 0; h < SIZEOF (handlers); h++)
+    {
+      enum iconv_ilseq_handler handler = handlers[h];
+      static const char input[] = "\304rger mit b\366sen B\374bchen ohne Augenma\337";
+      static const char expected[] = "\304rger mit b\366sen B\374bchen ohne Augenma\337";
+      char *result = str_iconveh (input, "ISO-8859-2", "ISO-8859-1", handler);
+      ASSERT (result != NULL);
+      ASSERT (strcmp (result, expected) == 0);
+      free (result);
+    }
+
+  /* Test conversion from ISO-8859-2 to ISO-8859-1 with EILSEQ.  */
+  for (h = 0; h < SIZEOF (handlers); h++)
+    {
+      enum iconv_ilseq_handler handler = handlers[h];
+      static const char input[] = "Rafa\263 Maszkowski"; /* Rafał Maszkowski */
+      char *result = str_iconveh (input, "ISO-8859-2", "ISO-8859-1", handler);
+      switch (handler)
+	{
+	case iconveh_error:
+	  ASSERT (result == NULL && errno == EILSEQ);
+	  break;
+	case iconveh_question_mark:
+	  {
+	    static const char expected[] = "Rafa? Maszkowski";
+	    ASSERT (result != NULL);
+	    ASSERT (strcmp (result, expected) == 0);
+	    free (result);
+	  }
+	  break;
+	case iconveh_escape_sequence:
+	  {
+	    static const char expected[] = "Rafa\\u0142 Maszkowski";
+	    ASSERT (result != NULL);
+	    ASSERT (strcmp (result, expected) == 0);
+	    free (result);
+	  }
+	  break;
+	}
+    }
+
+  /* Test conversion from ISO-8859-1 to UTF-8 with no errors.  */
+  for (h = 0; h < SIZEOF (handlers); h++)
+    {
+      enum iconv_ilseq_handler handler = handlers[h];
+      static const char input[] = "\304rger mit b\366sen B\374bchen ohne Augenma\337";
+      static const char expected[] = "\303\204rger mit b\303\266sen B\303\274bchen ohne Augenma\303\237";
+      char *result = str_iconveh (input, "ISO-8859-1", "UTF-8", handler);
+      ASSERT (result != NULL);
+      ASSERT (strcmp (result, expected) == 0);
+      free (result);
+    }
+
+  /* Test conversion from UTF-8 to ISO-8859-1 with no errors.  */
+  for (h = 0; h < SIZEOF (handlers); h++)
+    {
+      enum iconv_ilseq_handler handler = handlers[h];
+      static const char input[] = "\303\204rger mit b\303\266sen B\303\274bchen ohne Augenma\303\237";
+      static const char expected[] = "\304rger mit b\366sen B\374bchen ohne Augenma\337";
+      char *result = str_iconveh (input, "UTF-8", "ISO-8859-1", handler);
+      ASSERT (result != NULL);
+      ASSERT (strcmp (result, expected) == 0);
+      free (result);
+    }
+
+  /* Test conversion from UTF-8 to ISO-8859-1 with EILSEQ.  */
+  for (h = 0; h < SIZEOF (handlers); h++)
+    {
+      enum iconv_ilseq_handler handler = handlers[h];
+      static const char input[] = "Costs: 27 \342\202\254"; /* EURO SIGN */
+      char *result = str_iconveh (input, "UTF-8", "ISO-8859-1", handler);
+      switch (handler)
+	{
+	case iconveh_error:
+	  ASSERT (result == NULL && errno == EILSEQ);
+	  break;
+	case iconveh_question_mark:
+	  {
+	    static const char expected[] = "Costs: 27 ?";
+	    ASSERT (result != NULL);
+	    ASSERT (strcmp (result, expected) == 0);
+	    free (result);
+	  }
+	  break;
+	case iconveh_escape_sequence:
+	  {
+	    static const char expected[] = "Costs: 27 \\u20AC";
+	    ASSERT (result != NULL);
+	    ASSERT (strcmp (result, expected) == 0);
+	    free (result);
+	  }
+	  break;
+	}
+    }
+
+  /* Test conversion from UTF-8 to ISO-8859-1 with EINVAL.  */
+  for (h = 0; h < SIZEOF (handlers); h++)
+    {
+      enum iconv_ilseq_handler handler = handlers[h];
+      static const char input[] = "\342";
+      char *result = str_iconveh (input, "UTF-8", "ISO-8859-1", handler);
+      ASSERT (result != NULL);
+      ASSERT (strcmp (result, "") == 0);
+      free (result);
+    }
+
+#endif
+
+  return 0;
+}