vasnprintf: Add more tests.

[gnulib.git] / tests / test-vasnprintf-posix.c

diff --git a/tests/test-vasnprintf-posix.c b/tests/test-vasnprintf-posix.c
index 74ba165..3a9879f 100644 (file)
--- 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 @@ test_function (char * (*my_asnprintf) (char *, size_t *, const char *, ...))
       }
   }
 #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 *