Fix tests, cleanup stickers

Author: pengrad

library/src/test/java/com/pengrad/telegrambot/ModelTest.java

@@ -83,6 +83,9 @@ public void testEquals() throws ReflectiveOperationException {
                 verifierApi.withIgnoredFields("video_chat_started");
                 verifierApi.withIgnoredFields("forum_topic_closed");
                 verifierApi.withIgnoredFields("forum_topic_reopened");
+                verifierApi.withIgnoredFields("general_forum_topic_hidden");
+                verifierApi.withIgnoredFields("general_forum_topic_unhidden");
+                verifierApi.withIgnoredFields("write_access_allowed");
             }
 
             verifierApi.verify();

library/src/test/java/com/pengrad/telegrambot/TelegramBotTest.java

@@ -283,7 +283,7 @@ public void restrictChatMember() {
                 .canSendVideoNotes(true)
                 .canSendVoiceNotes(true)
                 .canSendPolls(true); // implies can_send_messages
-        
+
         BaseResponse response = bot.execute(new RestrictChatMember(groupId, memberBot, permissions));
         assertTrue(response.isOk());
     }
@@ -1339,6 +1339,12 @@ public void getStickerSet() {
         for (Sticker sticker : response.stickerSet().stickers()) {
             StickerTest.check(sticker, true, true);
         }
+        // clean up stickers, max 120 allowed
+        if (stickerSet.stickers().length > 50) {
+            for (int i = stickerSet.stickers().length - 1; i > stickerSet.stickers().length - 10; i--) {
+                bot.execute(new DeleteStickerFromSet(stickerSet.stickers()[i].fileId()));
+            }
+        }
         assertTrue(stickerSet.containsMasks());
         assertEquals(stickerSet.stickerType(), Sticker.Type.mask);
         assertEquals(TelegramBotTest.stickerSet, stickerSet.name());