From 2e206b124e0a94b1ee40428e7a6a71ecd0df1e0a Mon Sep 17 00:00:00 2001
From: Timo Kreuzer <timo.kreuzer@reactos.org>
Date: Fri, 19 Dec 2025 16:11:30 +0200
Subject: [PATCH] [WIN32U_APITEST] Rewrite test for NtGdiExtTextOutW

---
 .../apitests/win32u/ntgdi/NtGdiExtTextOutW.c  | 101 ++++++++++++++----
 1 file changed, 79 insertions(+), 22 deletions(-)

diff --git a/modules/rostests/apitests/win32u/ntgdi/NtGdiExtTextOutW.c b/modules/rostests/apitests/win32u/ntgdi/NtGdiExtTextOutW.c
index a7c139e5463..0e6c86fb8e2 100644
--- a/modules/rostests/apitests/win32u/ntgdi/NtGdiExtTextOutW.c
+++ b/modules/rostests/apitests/win32u/ntgdi/NtGdiExtTextOutW.c
@@ -24,35 +24,92 @@ NtGdiExtTextOutW(
 
 START_TEST(NtGdiExtTextOutW)
 {
-    HINSTANCE hinst = GetModuleHandle(NULL);
-    HWND hWnd;
-    HDC hDC;
-    RECT rect;
-    LPWSTR lpstr;
-    BOOL ret;
-    ULONG len;
+    static const LPWSTR lpstr = L"Hallo";
+    ULONG len = lstrlenW(lpstr);
+    RECT rect = { 0, 0, 100, 100 };
     INT Dx[10] = {10, -5, 10, 5, 10, -10, 10, 5, 10, 5};
 
-    /* Create a window */
-    hWnd = CreateWindowW(L"BUTTON", L"TestWindow", WS_OVERLAPPEDWINDOW | WS_VISIBLE,
-                        CW_USEDEFAULT, CW_USEDEFAULT, 100, 100,
-                        NULL, NULL, hinst, 0);
-    hDC = GetDC(hWnd);
+    HDC hdc = CreateCompatibleDC(NULL);
+    HBITMAP hbm = CreateCompatibleBitmap(hdc, 10, 10);
+    SelectObject(hdc, hbm);
 
-    lpstr = L"Hallo";
-    len = lstrlenW(lpstr);
+    /* Test valid call */
+    ok_int(NtGdiExtTextOutW(hdc, 0, 0, 0, &rect, lpstr, len, Dx, 0), 1);
 
-    ret = NtGdiExtTextOutW(hDC, 0, 0, 0, &rect, lpstr, len, Dx, 0);
-    ok_int(ret, 1);
+    /* Test NULL hdc */
+    SetLastError(0xDEADFACE);
+    ok_int(NtGdiExtTextOutW(NULL, 0, 0, 0, &rect, lpstr, len, Dx, 0), 0);
+    ok_err(0xDEADFACE);
 
-    ret = NtGdiExtTextOutW(hDC, 0, 0, ETO_PDY, &rect, lpstr, len, Dx, 0);
-    ok_int(ret, 1);
+    /* Test NULL rect */
+    ok_int(NtGdiExtTextOutW(hdc, 0, 0, 0, NULL, lpstr, len, Dx, 0), 1);
+
+    /* Test with invalid rect */
+    RECT invalid_rect = { MAXLONG, MINLONG, MINLONG, MAXLONG };
+    ok_int(NtGdiExtTextOutW(hdc, 0, 0, 0, &invalid_rect, lpstr, len, Dx, 0), 1);
+
+    /* Test NULL lpstr with zero len */
+    ok_int(NtGdiExtTextOutW(hdc, 0, 0, 0, &rect, NULL, 0, Dx, 0), 1);
+
+    /* Test NULL lpstr with non-zero len */
+    SetLastError(0xDEADFACE);
+    ok_int(NtGdiExtTextOutW(hdc, 0, 0, 0, &rect, NULL, len, Dx, 0), 0);
+    ok_err(0xDEADFACE);
+
+    /* Test NULL pdx and NULL lpstr with zero len */
+    ok_int(NtGdiExtTextOutW(hdc, 0, 0, 0, &rect, NULL, 0, NULL, 0), 1);
+
+    /* Test NULL pdx and valid lpstr with zero len */
+    ok_int(NtGdiExtTextOutW(hdc, 0, 0, 0, &rect, lpstr, 0, NULL, 0), 1);
+
+    /* Test NULL pdx and valid lpstr with non-zero len */
+    ok_int(NtGdiExtTextOutW(hdc, 0, 0, 0, &rect, lpstr, len, NULL, 0), 1);
+
+    /* Test NULL pdx and ETO_PDY */
+    if (GetNTVersion() <= _WIN32_WINNT_VISTA)
+    {
+        ok_int(NtGdiExtTextOutW(hdc, 0, 0, ETO_PDY, &rect, lpstr, len, NULL, 0), 1);
+    }
+    else
+    {
+        SetLastError(0xDEADFACE);
+        ok_int(NtGdiExtTextOutW(hdc, 0, 0, ETO_PDY, &rect, lpstr, len, NULL, 0), 0);
+        ok_err(ERROR_INVALID_PARAMETER);
+    }
+
+    /* Test different flOpts */
+    SetLastError(0xDEADFACE);
+    ok_int(NtGdiExtTextOutW(hdc, 0, 0, 0x00000001, &rect, lpstr, len, Dx, 0), 0); // ETO_GRAYED
+    ok_int(NtGdiExtTextOutW(hdc, 0, 0, 0x00000002, &rect, lpstr, len, Dx, 0), 1); // ETO_OPAQUE
+    ok_int(NtGdiExtTextOutW(hdc, 0, 0, 0x00000005, &rect, lpstr, len, Dx, 0), 0); // ETO_OPAQUE | ETO_GRAYED
+    ok_int(NtGdiExtTextOutW(hdc, 0, 0, 0x00000004, &rect, lpstr, len, Dx, 0), 1); // ETO_CLIPPED
+    ok_int(NtGdiExtTextOutW(hdc, 0, 0, 0x00000008, &rect, lpstr, len, Dx, 0), 0);
+    ok_int(NtGdiExtTextOutW(hdc, 0, 0, 0x00000010, &rect, lpstr, len, Dx, 0), 1); // ETO_GLYPH_INDEX
+    ok_int(NtGdiExtTextOutW(hdc, 0, 0, 0x00000020, &rect, lpstr, len, Dx, 0), 0);
+    ok_int(NtGdiExtTextOutW(hdc, 0, 0, 0x00000040, &rect, lpstr, len, Dx, 0), 0);
+    ok_int(NtGdiExtTextOutW(hdc, 0, 0, 0x00000080, &rect, lpstr, len, Dx, 0), 1); // ETO_RTLREADING
+    ok_int(NtGdiExtTextOutW(hdc, 0, 0, 0x00000100, &rect, lpstr, len, Dx, 0), 0);
+    ok_int(NtGdiExtTextOutW(hdc, 0, 0, 0x00000200, &rect, lpstr, len, Dx, 0), 0);
+    ok_int(NtGdiExtTextOutW(hdc, 0, 0, 0x00000400, &rect, lpstr, len, Dx, 0), 1); // ETO_NUMERICSLOCAL
+    ok_int(NtGdiExtTextOutW(hdc, 0, 0, 0x00000800, &rect, lpstr, len, Dx, 0), 1); // ETO_NUMERICSLATIN
+    ok_int(NtGdiExtTextOutW(hdc, 0, 0, 0x00001000, &rect, lpstr, len, Dx, 0), 1); // ETO_IGNORELANGUAGE
+    ok_int(NtGdiExtTextOutW(hdc, 0, 0, 0x00002000, &rect, lpstr, len, Dx, 0), 1); // ETO_PDY
+    ok_int(NtGdiExtTextOutW(hdc, 0, 0, 0x00004000, &rect, lpstr, len, Dx, 0), 0);
+    ok_int(NtGdiExtTextOutW(hdc, 0, 0, 0x00008000, &rect, lpstr, len, Dx, 0), 0);
+    ok_int(NtGdiExtTextOutW(hdc, 0, 0, 0x00010000, &rect, lpstr, len, Dx, 0), 0); // ETO_REVERSE_INDEX_MAP
+    ok_int(NtGdiExtTextOutW(hdc, 0, 0, 0x00020000, &rect, lpstr, len, Dx, 0), 0);
+    ok_err(0xDEADFACE);
 
     /* Test invalid lpDx */
-    ret = NtGdiExtTextOutW(hDC, 0, 0, 0, 0, lpstr, len, (INT*)((ULONG_PTR)-1), 0);
-    ok_int(ret, 0);
+    ok_int(NtGdiExtTextOutW(hdc, 0, 0, 0, 0, lpstr, len, (INT*)((ULONG_PTR)-1), 0), 0);
 
     /* Test alignment requirement for lpDx */
-    ret = NtGdiExtTextOutW(hDC, 0, 0, 0, 0, lpstr, len, (INT*)((ULONG_PTR)Dx + 1), 0);
-    ok_int(ret, 0);
+    ok_int(NtGdiExtTextOutW(hdc, 0, 0, 0, 0, lpstr, len, (INT*)((ULONG_PTR)Dx + 1), 0),
+              (GetNTVersion() >= _WIN32_WINNT_WIN10) ? 1 : 0);
+
+    /* Test invalid codepage */
+    ok_int(NtGdiExtTextOutW(hdc, 0, 0, 0, &rect, lpstr, len, Dx, 0xDEADCAFE), 1);
+
+    DeleteDC(hdc);
+    DeleteObject(hbm);
 }