[PATCH v4 1/6] user32/tests: Run in-desktop tests from a new thread.

[Rémi Bernon]

From: Rémi Bernon

To avoid the new process inheriting the old desktop as default. Changes
the todos in the tests as it fixes the thread input not being attached,
but then exposes a different todo.

This works around an issue with the way Wine implements its process
default desktop when handles aren't inherited: it uses the old process
desktop right away instead of using the one provided in the process
startup info.
---
 dlls/user32/tests/input.c | 60 ++++++++++++++++++++++++++++++++-------
 1 file changed, 49 insertions(+), 11 deletions(-)

diff --git a/dlls/user32/tests/input.c b/dlls/user32/tests/input.c
index be95bd150b4..d0a3a9f6f55 100644
--- a/dlls/user32/tests/input.c
+++ b/dlls/user32/tests/input.c
@@ -428,15 +428,52 @@ static void run_in_process_( const char *file, int line, char **argv, const char
     CloseHandle( info.hProcess );
 }

+struct run_in_desktop_params
+{
+    const char *file;
+    int line;
+
+    HDESK desktop;
+    char *cmdline;
+    STARTUPINFOA *startup;
+};
+
+static DWORD WINAPI run_in_desktop_thread( void *args )
+{
+    struct run_in_desktop_params *params = args;
+    PROCESS_INFORMATION info = {0};
+    HDESK old_desktop;
+    DWORD ret;
+
+    old_desktop = GetThreadDesktop( GetCurrentThreadId() );
+    ok_(params->file, params->line)( old_desktop != NULL, "GetThreadDesktop error %lu\n", GetLastError() );
+    ret = SetThreadDesktop( params->desktop );
+    ok_(params->file, params->line)( !!ret, "SetThreadDesktop failed, error %lu\n", GetLastError() );
+
+    ret = CreateProcessA( NULL, params->cmdline, NULL, NULL, FALSE, 0, NULL, NULL, params->startup, &info );
+    ok_(params->file, params->line)( ret, "CreateProcessA failed, error %lu\n", GetLastError() );
+    if (ret)
+    {
+        wait_child_process( info.hProcess );
+        CloseHandle( info.hThread );
+        CloseHandle( info.hProcess );
+    }
+
+    ret = SetThreadDesktop( old_desktop );
+    ok_(params->file, params->line)( !!ret, "SetThreadDesktop failed, error %lu\n", GetLastError() );
+    return 0;
+}
+
 #define run_in_desktop( a, b, c ) run_in_desktop_( __FILE__, __LINE__, a, b, c )
 static void run_in_desktop_( const char *file, int line, char **argv,
                              const char *args, BOOL input )
 {
+    struct run_in_desktop_params params = {.file = file, .line = line};
     const char *desktop_name = "WineTest Desktop";
     STARTUPINFOA startup = {.cb = sizeof(STARTUPINFOA)};
-    PROCESS_INFORMATION info = {0};
     HDESK old_desktop, desktop;
     char cmdline[MAX_PATH * 2];
+    HANDLE thread;
     DWORD ret;

old_desktop = OpenInputDesktop( 0, FALSE, DESKTOP_ALL_ACCESS );
@@ -451,13 +488,14 @@ static void run_in_desktop_( const char *file, int line, char **argv,

startup.lpDesktop = (char *)desktop_name;
     sprintf( cmdline, "%s %s %s", argv[0], argv[1], args );
-    ret = CreateProcessA( NULL, cmdline, NULL, NULL, FALSE, 0, NULL, NULL, &startup, &info );
-    ok_(file, line)( ret, "CreateProcessA failed, error %lu\n", GetLastError() );
-    if (!ret) return;

-    wait_child_process( info.hProcess );
-    CloseHandle( info.hThread );
-    CloseHandle( info.hProcess );
+    params.startup = &startup;
+    params.cmdline = cmdline;
+    params.desktop = desktop;
+    thread = CreateThread( NULL, 0, run_in_desktop_thread, &params, 0, NULL );
+    ok_(file, line)( thread != NULL, "CreateThread error %lu\n", GetLastError() );
+    ret = WaitForSingleObject( thread, INFINITE );
+    ok_(file, line)( ret == WAIT_OBJECT_0, "WaitForSingleObject returned %lu, error %lu\n", ret, GetLastError() );

if (input)
     {
@@ -3855,19 +3893,19 @@ static void test_SendInput_mouse_messages(void)
     ok_ne( NULL, thread, HANDLE, "%p" );

ok_ret( 0, WaitForSingleObject( params.start_event, 5000 ) );
-    todo_wine ok_ret( 1, AttachThreadInput( thread_id, GetCurrentThreadId(), TRUE ) );
+    ok_ret( 1, AttachThreadInput( thread_id, GetCurrentThreadId(), TRUE ) );
     ok_ret( 0, SendMessageW( params.hwnd, WM_USER, 0, 0 ) );

mouse_event( MOUSEEVENTF_LEFTDOWN, 0, 0, 0, 0 );
     wait_messages( 5, FALSE );
-    button_down_hwnd[1].message.hwnd = hwnd;
-    ok_seq( button_down_hwnd );
+    button_down_hwnd_todo[1].message.hwnd = hwnd;
+    ok_seq( button_down_hwnd_todo );
     mouse_event( MOUSEEVENTF_LEFTUP, 0, 0, 0, 0 );
     wait_messages( 5, FALSE );
     button_up_hwnd[1].message.hwnd = hwnd;
     ok_seq( button_up_hwnd );

-    todo_wine ok_ret( 1, AttachThreadInput( thread_id, GetCurrentThreadId(), FALSE ) );
+    ok_ret( 1, AttachThreadInput( thread_id, GetCurrentThreadId(), FALSE ) );
     ok_ret( 1, SetEvent( params.end_event ) );
     ok_ret( 0, WaitForSingleObject( thread, 5000 ) );
     ok_ret( 1, CloseHandle( thread ) );