1 files changed, 23 insertions, 0 deletions
diff --git a/newlib/testsuite/newlib.wctype/twctrans.c b/newlib/testsuite/newlib.wctype/twctrans.c
new file mode 100644
index 000000000..a70e00175
--- /dev/null
+++ b/newlib/testsuite/newlib.wctype/twctrans.c
@@ -0,0 +1,23 @@
+#include <wctype.h>
+#include <newlib.h>
+#include "check.h"
+
+int main()
+{
+  wctrans_t x;
+
+  x = wctrans ("tolower");
+  CHECK (x != 0);
+  CHECK (towctrans (L'A', x) == tolower ('A'));
+  CHECK (towctrans (L'5', x) == tolower ('5'));
+
+  x = wctrans ("toupper");
+  CHECK (x != 0);
+  CHECK (towctrans (L'c', x) == toupper ('c'));
+  CHECK (towctrans (L'9', x) == toupper ('9'));
+
+  x = wctrans ("unknown");
+  CHECK (x == 0);
+
+  exit (0);
+}