[PATCH 1/2] user32/tests: Test repeated AttachThreadInput() calls.

[Zhiyi Zhang]

From: Zhiyi Zhang

For example, attaching thread A and B twice but detach them only once, then these two threads should
still be attached.
---
 dlls/user32/tests/input.c | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/dlls/user32/tests/input.c b/dlls/user32/tests/input.c
index 9196e67c15b..47c26293dec 100644
--- a/dlls/user32/tests/input.c
+++ b/dlls/user32/tests/input.c
@@ -4516,7 +4516,9 @@ static LRESULT WINAPI MsgCheckProcA(HWND hwnd, UINT message, WPARAM wParam, LPAR
     if (message == WM_USER+1)
     {
         HWND hwnd = (HWND)lParam;
+        todo_wine_if(wParam)
         ok(GetFocus() == hwnd, "thread expected focus %p, got %p\n", hwnd, GetFocus());
+        todo_wine_if(wParam)
         ok(GetActiveWindow() == hwnd, "thread expected active %p, got %p\n", hwnd, GetActiveWindow());
     }
     return DefWindowProcA(hwnd, message, wParam, lParam);
@@ -4662,6 +4664,27 @@ static void test_attach_input(void)

SendMessageA(wnd_event.hwnd, WM_USER+1, 0, 0);

+    /* Test repeated AttachThreadInput() calls */
+    SetFocus(ourWnd);
+    SetActiveWindow(ourWnd);
+
+    ret = AttachThreadInput(GetCurrentThreadId(), tid, TRUE);
+    ok(ret, "AttachThreadInput error %ld\n", GetLastError());
+    SendMessageA(wnd_event.hwnd, WM_USER+1, 0, (LPARAM)ourWnd);
+
+    ret = AttachThreadInput(GetCurrentThreadId(), tid, TRUE);
+    ok(ret, "AttachThreadInput error %ld\n", GetLastError());
+    SendMessageA(wnd_event.hwnd, WM_USER+1, 0, (LPARAM)ourWnd);
+
+    ret = AttachThreadInput(GetCurrentThreadId(), tid, FALSE);
+    ok(ret, "AttachThreadInput error %ld\n", GetLastError());
+    SendMessageA(wnd_event.hwnd, WM_USER+1, TRUE, (LPARAM)ourWnd);
+
+    ret = AttachThreadInput(GetCurrentThreadId(), tid, FALSE);
+    todo_wine
+    ok(ret, "AttachThreadInput error %ld\n", GetLastError());
+    SendMessageA(wnd_event.hwnd, WM_USER+1, 0, 0);
+
     ret = PostMessageA(wnd_event.hwnd, WM_QUIT, 0, 0);
     ok(ret, "PostMessageA(WM_QUIT) error %ld\n", GetLastError());