tst_combobox: skip indicator check for the native styles

The ComboBox::test_defaults() test checks that there is an
indictor present in the style. But for the native styles, the
indicator is drawn as a part of the background. So skip the
failing test when running on mac and windows.

Task-number: QTBUG-95678
Pick-to: 6.2
Change-Id: I35f1900044bad1a519d9883b2061810bff8eb7a8
Reviewed-by: Mitch Curtis <mitch.curtis@qt.io>
Reviewed-by: Jan Arve Sæther <jan-arve.saether@qt.io>

tests/auto/quickcontrols2/controls/data/tst_combobox.qml

@@ -155,7 +155,11 @@ TestCase {
         compare(control.highlightedIndex, -1)
         compare(control.currentText, "")
         verify(control.delegate)
-        verify(control.indicator)
+        if (Qt.platform.pluginName !== "cocoa" && Qt.platform.pluginName !== "windows") {
+            // Only the non-native styles sets an indicator delegate. The native
+            // styles will instead draw the indicator as a part of the background.
+            verify(control.indicator)
+        }
         verify(control.popup)
         verify(control.acceptableInput)
         compare(control.inputMethodHints, Qt.ImhNoPredictiveText)

tests/auto/quickcontrols2/controls/macos/BLACKLIST

@@ -3,8 +3,6 @@
 # QTBUG-95678
 # Blacklisted in order to get the native macOS style under
 # regression control
-[ComboBox::test_defaults]
-*
 [ComboBox::test_font]
 *
 [ComboBox::test_implicitContentWidthPolicy_WidestText]