Fix AddStickerToSet file uploading

Author: pengrad

library/src/main/java/com/pengrad/telegrambot/request/AddStickerToSet.java

@@ -54,8 +54,18 @@ private AddStickerToSet(Long userId, String name, String emojis, String stickerP
     }
 
     public AddStickerToSet(Long userId, String name, InputSticker sticker) {
-        super(BaseResponse.class, "sticker", sticker);
+        super(BaseResponse.class, attachName(sticker), attachment(sticker));
+        add("user_id", userId);
         add("name", name);
+        add("sticker", sticker);
+    }
+
+    private static String attachName(InputSticker sticker) {
+        return sticker.getAttachment() != null ? sticker.getAttachName() : "sticker_id";
+    }
+
+    private static Object attachment(InputSticker sticker) {
+        return sticker.getAttachment() != null ? sticker.getAttachment() : "sticker_id";
     }
 
     public AddStickerToSet maskPosition(MaskPosition maskPosition) {

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

@@ -1342,12 +1342,17 @@ public void uploadStickerFile() throws IOException {
 
     @Test
     public void createNewPngStickerSet() {
+        String name = "test" + System.currentTimeMillis() + "_by_pengrad_test_bot";
         BaseResponse response = bot.execute(
-                CreateNewStickerSet.pngSticker(chatId, "test" + System.currentTimeMillis() + "_by_pengrad_test_bot",
-                                "test1", "\uD83D\uDE00", stickerFile)
+                CreateNewStickerSet.pngSticker(chatId, name, "test1", "\uD83D\uDE00", stickerFile)
                         .stickerType(Sticker.Type.mask)
                         .maskPosition(new MaskPosition(MaskPosition.Point.forehead, 0f, 0f, 1f)));
         assertTrue(response.isOk());
+
+        response = bot.execute(new AddStickerToSet(chatId, name,
+                new InputSticker(stickerFile, new String[]{"\uD83D\uDE00"}))
+                .maskPosition(new MaskPosition("eyes", 0f, 0f, 1f)));
+        assertTrue(response.isOk());
     }
 
     @Test
@@ -1442,6 +1447,9 @@ public void setStickerSetThumb() {
         BaseResponse response = bot.execute(new SetStickerSetThumb(stickerSetAnim, chatId, thumbFile));
         assertTrue(response.isOk());
 
+        response = bot.execute(new SetStickerSetThumbnail(stickerSetAnim, chatId, thumbFile));
+        assertTrue(response.isOk());
+
         StickerSet set = bot.execute(new GetStickerSet(stickerSetAnim)).stickerSet();
         assertTrue(set.isAnimated());
         PhotoSize thumb = set.thumb();
@@ -1453,6 +1461,9 @@ public void setStickerSetThumb() {
         // clear thumb by not sending it
         response = bot.execute(new SetStickerSetThumb(stickerSetAnim, chatId));
         assertTrue(response.isOk());
+
+        response = bot.execute(new SetStickerSetThumbnail(stickerSetAnim, chatId));
+        assertTrue(response.isOk());
     }
 
     @Test