Extract and fix logic for showing rac dialog.

Added tests to make sure the logic makes sense.

Bug: 335745726
Test: make, manual, atest SubscriptionUtilRoboTest, atest SubscriptionUtilTest, atest ResetNetworkTest
Change-Id: I7092f2747f1ca1f9ef4dc99275a916b9e24d8b28

src/com/android/settings/network/EraseEuiccDataController.java

@@ -50,7 +50,7 @@ public class EraseEuiccDataController extends BasePreferenceController {
         if (!TextUtils.equals(preference.getKey(), getPreferenceKey())) {
             return false;
         }
-        if (SubscriptionUtil.shouldShowRacDialog(mContext)) {
+        if (SubscriptionUtil.shouldShowRacDialogWhenErasingAllEsims(mContext)) {
             EuiccRacConnectivityDialogFragment.show(mHostFragment);
         } else {
             EraseEuiccDataDialogFragment.show(mHostFragment);