# HG changeset patch
# User Bruno Haible <bruno@clisp.org>
# Date 1270931216 -7200
# Node ID 69f672943274e56e7c9f3cbed3a6a2dbe6be1d86
# Parent  af2bd6fe2a984e8063ee207eb39314ccffe4bc04
vasnprintf: Add more tests.

diff --git a/ChangeLog b/ChangeLog
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
 2010-04-10  Bruno Haible  <bruno@clisp.org>
 
+	vasnprintf: Add more tests.
+	* tests/test-vasnprintf-posix.c: Include <errno.h>.
+	(test_function): Test converting an invalid wide string.
+
 	vasnprintf: Correct handling of unconvertible wide string arguments.
 	* lib/vasnprintf.c (MAX_ROOM_NEEDED): New function, extracted from
 	VASNPRINTF.
diff --git a/tests/test-vasnprintf-posix.c b/tests/test-vasnprintf-posix.c
--- a/tests/test-vasnprintf-posix.c
+++ b/tests/test-vasnprintf-posix.c
@@ -20,6 +20,7 @@
 
 #include "vasnprintf.h"
 
+#include <errno.h>
 #include <float.h>
 #include <stdarg.h>
 #include <stddef.h>
@@ -3636,6 +3637,46 @@
       }
   }
 #endif
+
+#if HAVE_WCHAR_T
+  /* Test that converting an invalid wchar_t[] to char[] fails with EILSEQ.  */
+  {
+    static const wchar_t input[] = { (wchar_t) 1702057263, 114, 0 };
+    size_t length;
+    char *result = my_asnprintf (NULL, &length, "%ls %d", input, 99);
+    if (result == NULL)
+      ASSERT (errno == EILSEQ);
+    else
+      free (result);
+  }
+  {
+    static const wchar_t input[] = { (wchar_t) 1702057263, 114, 0 };
+    size_t length;
+    char *result = my_asnprintf (NULL, &length, "%3ls %d", input, 99);
+    if (result == NULL)
+      ASSERT (errno == EILSEQ);
+    else
+      free (result);
+  }
+  {
+    static const wchar_t input[] = { (wchar_t) 1702057263, 114, 0 };
+    size_t length;
+    char *result = my_asnprintf (NULL, &length, "%.1ls %d", input, 99);
+    if (result == NULL)
+      ASSERT (errno == EILSEQ);
+    else
+      free (result);
+  }
+  {
+    static const wchar_t input[] = { (wchar_t) 1702057263, 114, 0 };
+    size_t length;
+    char *result = my_asnprintf (NULL, &length, "%3.1ls %d", input, 99);
+    if (result == NULL)
+      ASSERT (errno == EILSEQ);
+    else
+      free (result);
+  }
+#endif
 }
 
 static char *