Imported Upstream version 0.9.6upstream/0.9.6

1 files changed, 22 insertions, 5 deletions

diff --git a/tests/test-mbrtowc.c b/tests/test-mbrtowc.c
index 5477677c..d24b93e7 100644
--- a/tests/test-mbrtowc.c
+++ b/tests/test-mbrtowc.c
@@ -1,5 +1,5 @@
 /* Test of conversion of multibyte character to wide character.
-   Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
+   Copyright (C) 2008-2015 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
@@ -46,10 +46,7 @@ main (int argc, char *argv[])
     memset (&state, '\0', sizeof (mbstate_t));
     wc = (wchar_t) 0xBADFACE;
     ret = mbrtowc (&wc, "x", 0, &state);
-    /* gnulib's implementation returns (size_t)(-2).
-       The AIX 5.1 implementation returns (size_t)(-1).
-       glibc's implementation returns 0.  */
-    ASSERT (ret == (size_t)(-2) || ret == (size_t)(-1) || ret == 0);
+    ASSERT (ret == (size_t)(-2));
     ASSERT (mbsinit (&state));
   }
 
@@ -143,6 +140,11 @@ main (int argc, char *argv[])
           ASSERT (mbsinit (&state));
           input[1] = '\0';
 
+          /* Test support of NULL first argument.  */
+          ret = mbrtowc (NULL, input + 2, 3, &state);
+          ASSERT (ret == 1);
+          ASSERT (mbsinit (&state));
+
           wc = (wchar_t) 0xBADFACE;
           ret = mbrtowc (&wc, input + 2, 3, &state);
           ASSERT (ret == 1);
@@ -192,6 +194,11 @@ main (int argc, char *argv[])
           ASSERT (mbsinit (&state));
           input[2] = '\0';
 
+          /* Test support of NULL first argument.  */
+          ret = mbrtowc (NULL, input + 3, 4, &state);
+          ASSERT (ret == 2);
+          ASSERT (mbsinit (&state));
+
           wc = (wchar_t) 0xBADFACE;
           ret = mbrtowc (&wc, input + 3, 4, &state);
           ASSERT (ret == 2);
@@ -250,6 +257,11 @@ main (int argc, char *argv[])
           ASSERT (mbsinit (&state));
           input[4] = '\0';
 
+          /* Test support of NULL first argument.  */
+          ret = mbrtowc (NULL, input + 5, 3, &state);
+          ASSERT (ret == 2);
+          ASSERT (mbsinit (&state));
+
           wc = (wchar_t) 0xBADFACE;
           ret = mbrtowc (&wc, input + 5, 3, &state);
           ASSERT (ret == 2);
@@ -293,6 +305,11 @@ main (int argc, char *argv[])
           ASSERT (mbsinit (&state));
           input[2] = '\0';
 
+          /* Test support of NULL first argument.  */
+          ret = mbrtowc (NULL, input + 3, 6, &state);
+          ASSERT (ret == 4);
+          ASSERT (mbsinit (&state));
+
           wc = (wchar_t) 0xBADFACE;
           ret = mbrtowc (&wc, input + 3, 6, &state);
           ASSERT (ret == 4);