[PATCH v6 4/6] uxtheme/tests: Add a test for SetWindowTheme/OpenThemeData sequence.

[Dmitry Timoshkov]

From: Dmitry Timoshkov

Signed-off-by: Dmitry Timoshkov 
---
 dlls/uxtheme/tests/system.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/dlls/uxtheme/tests/system.c b/dlls/uxtheme/tests/system.c
index eca609b7971..de9419a032a 100644
--- a/dlls/uxtheme/tests/system.c
+++ b/dlls/uxtheme/tests/system.c
@@ -558,6 +558,16 @@ static void test_OpenThemeData(void)

/* Only do the next checks if we have an active theme */

+    hRes = SetWindowTheme(hWnd, L"explorer", NULL);
+    ok(hRes == S_OK, "Got unexpected hr %#lx.\n", hRes);
+    SetLastError(0xdeadbeef);
+    hTheme = OpenThemeData(hWnd, L"explorer::treeview");
+    todo_wine
+    ok(!hTheme, "OpenThemeData() should fail\n");
+    todo_wine
+    ok(GetLastError() == E_PROP_ID_UNSUPPORTED, "Got unexpected %#lx.\n", GetLastError());
+    SetWindowTheme(hWnd, NULL, NULL);
+
     SetLastError(0xdeadbeef);
     hTheme = OpenThemeData(hWnd, L"dead::beef;explorer::treeview");
     todo_wine