user32/tests: Also include LBS_NODATA cases when testing ownerdraw.

dlls/user32/tests/listbox.c

@@ -338,14 +338,22 @@ static HWND create_parent( void )
 
 static void test_ownerdraw(void)
 {
+    static const DWORD styles[] =
+    {
+        0,
+        LBS_NODATA
+    };
     HWND parent, hLB;
     INT ret;
     RECT rc;
+    UINT i;
 
     parent = create_parent();
     assert(parent);
 
-    hLB = create_listbox(LBS_OWNERDRAWFIXED | WS_CHILD | WS_VISIBLE, parent);
+    for (i = 0; i < ARRAY_SIZE(styles); i++)
+    {
+        hLB = create_listbox(LBS_OWNERDRAWFIXED | WS_CHILD | WS_VISIBLE | styles[i], parent);
         assert(hLB);
 
         SetForegroundWindow(hLB);
@@ -369,8 +377,8 @@ static void test_ownerdraw(void)
         DestroyWindow(hLB);
 
         /* Both FIXED and VARIABLE, FIXED should override VARIABLE. */
-    hLB = CreateWindowA("listbox", "TestList", LBS_OWNERDRAWFIXED | LBS_OWNERDRAWVARIABLE, 0, 0, 100, 100,
-        NULL, NULL, NULL, 0);
+        hLB = CreateWindowA("listbox", "TestList", LBS_OWNERDRAWFIXED | LBS_OWNERDRAWVARIABLE | styles[i],
+            0, 0, 100, 100, NULL, NULL, NULL, 0);
         ok(hLB != NULL, "last error 0x%08x\n", GetLastError());
 
         ok(GetWindowLongA(hLB, GWL_STYLE) & LBS_OWNERDRAWVARIABLE, "Unexpected window style.\n");
@@ -396,7 +404,7 @@ static void test_ownerdraw(void)
         ok(ret == 42, "Unexpected item height %d.\n", ret);
 
         DestroyWindow (hLB);
-
+    }
     DestroyWindow(parent);
 }