shadows/framework/src/main/java/org/robolectric/shadows/ShadowSubscriptionManager.java
@Implementation(minSdk = LOLLIPOP_MR1)
  protected SubscriptionInfo getActiveSubscriptionInfo(int subId) {
    if (subscriptionList == null) {
      return null;
    }
    for (SubscriptionInfo info : subscriptionList) {
      if (info.getSubscriptionId() == subId) {
        return info;
      }
    }
    return null;
  }
@Implementation(minSdk = LOLLIPOP_MR1)
  protected SubscriptionInfo getActiveSubscriptionInfo(int subId) {
    if (subscriptionList == null) {
      return null;
    }
    for (SubscriptionInfo info : subscriptionList) {
      if (info.getSubscriptionId() == subId) {
        return info;
      }
    }
    return null;
  }
Returns subscription that were set via {@link #setActiveSubscriptionInfoList} if it can find
one with the specified id or null if none found.