d3d8/tests: Add a test for CheckDeviceFormat() with an unsupported adapter format.

dlls/d3d8/tests/device.c

@@ -8148,6 +8148,13 @@ static void test_check_device_format(void)
         ok(hr == D3DERR_INVALIDCALL, "Got unexpected hr %#x, device type %#x.\n", hr, device_type);
     }
 
+    hr = IDirect3D8_CheckDeviceFormat(d3d, D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, D3DFMT_A8R8G8B8,
+            0, D3DRTYPE_TEXTURE, D3DFMT_X8R8G8B8);
+    ok(hr == D3DERR_NOTAVAILABLE, "Got unexpected hr %#x.\n", hr);
+    hr = IDirect3D8_CheckDeviceFormat(d3d, D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, D3DFMT_X8R8G8B8,
+            0, D3DRTYPE_TEXTURE, D3DFMT_X8R8G8B8);
+    ok(hr == D3D_OK || hr == D3DERR_NOTAVAILABLE, "Got unexpected hr %#x.\n", hr);
+
     hr = IDirect3D8_CheckDeviceFormat(d3d, D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, D3DFMT_X8R8G8B8,
             0, D3DRTYPE_VERTEXBUFFER, D3DFMT_VERTEXDATA);
     todo_wine ok(hr == D3DERR_INVALIDCALL, "Got unexpected hr %#x.\n", hr);