Marcus Meissner : user32/tests: Check GetClipboardFormatName length.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 77f4c20af31edb1e1786417912d915e12aebbe3f
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=77f4c20af31edb1e1786417912d915e12aebbe3f

Author: Marcus Meissner <marcus at jet.franken.de>
Date:   Sun Nov  5 22:58:51 2017 +0100

user32/tests: Check GetClipboardFormatName length.

Signed-off-by: Marcus Meissner <marcus at jet.franken.de>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 dlls/user32/tests/clipboard.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/dlls/user32/tests/clipboard.c b/dlls/user32/tests/clipboard.c
index 8391ea0..aa3bd04 100644
--- a/dlls/user32/tests/clipboard.c
+++ b/dlls/user32/tests/clipboard.c
@@ -385,6 +385,9 @@ static void test_RegisterClipboardFormatA(void)
     ok(len == lstrlenA("my_cool_clipboard_format"), "wrong format name length %d\n", len);
     ok(!lstrcmpA(buf, "my_cool_clipboard_format"), "wrong format name \"%s\"\n", buf);
 
+    len = GetClipboardFormatNameA(format_id, NULL, 0);
+    ok(len == 0, "wrong format name length %d\n", len);
+
     lstrcpyA(buf, "foo");
     SetLastError(0xdeadbeef);
     len = GetAtomNameA((ATOM)format_id, buf, 256);