From 62b9df9031b08b17fb0e8fe4569da7137b4d4c1b Mon Sep 17 00:00:00 2001
From: Louis Lenders <xerox_xerox2000@yahoo.co.uk>
Date: Sun, 10 Oct 2010 21:07:53 +0200
Subject: [PATCH] user32/tests: Test FindWindowEx for empty window title.

---
 dlls/user32/tests/win.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/dlls/user32/tests/win.c b/dlls/user32/tests/win.c
index 50c5be56fa7..12f2e1c62b2 100644
--- a/dlls/user32/tests/win.c
+++ b/dlls/user32/tests/win.c
@@ -6237,6 +6237,25 @@ static void test_rtl_layout(void)
     DestroyWindow( parent );
 }
 
+static void test_FindWindowEx(void)
+{
+    HWND found;
+    CHAR title[1];
+
+    title[0] = 0;
+
+    found = FindWindowExA( 0, 0, "MainWindowClass", title );
+    ok( found == NULL, "expected a NULL hwnd\n" );
+    found = FindWindowExA( 0, 0, "MainWindowClass", NULL );
+    ok( found != NULL, "found is NULL, expected a valid hwnd\n" );
+    /* test behaviour with a window title that is an empty character */
+    found = FindWindowExA( 0, 0, "Shell_TrayWnd", title );
+todo_wine
+    ok( found != NULL, "found is NULL, expected a valid hwnd\n" );
+    found = FindWindowExA( 0, 0, "Shell_TrayWnd", NULL );
+    ok( found != NULL, "found is NULL, expected a valid hwnd\n" );
+}
+
 START_TEST(win)
 {
     HMODULE user32 = GetModuleHandleA( "user32.dll" );
@@ -6332,6 +6351,7 @@ START_TEST(win)
     test_Expose();
     test_layered_window();
 
+    test_FindWindowEx();
     test_SetForegroundWindow(hwndMain);
     test_shell_window();
     test_handles( hwndMain );