diff --git a/bot_test.go b/bot_test.go
index 73f43d3..5986247 100644
--- a/bot_test.go
+++ b/bot_test.go
@@ -258,6 +258,113 @@ func TestSendWithLocation(t *testing.T) {
 	}
 }
 
+func TestSendWithNewVideo(t *testing.T) {
+	bot, err := tgbotapi.NewBotAPI(os.Getenv("TELEGRAM_API_TOKEN"))
+
+	if err != nil {
+		t.Fail()
+	}
+
+	msg := tgbotapi.NewVideoUpload(76918703, "tests/video.mp4")
+	msg.Duration = 10
+	msg.Caption = "TEST"
+
+	_, err = bot.Send(msg)
+
+	if err != nil {
+
+		t.Fail()
+	}
+}
+
+func TestSendWithExistingVideo(t *testing.T) {
+	bot, err := tgbotapi.NewBotAPI(os.Getenv("TELEGRAM_API_TOKEN"))
+
+	if err != nil {
+		t.Fail()
+	}
+
+	msg := tgbotapi.NewVideoShare(76918703, "BAADAgADRgADhwGzCopBeKJ7rv9SAg")
+	msg.Duration = 10
+	msg.Caption = "TEST"
+
+	_, err = bot.Send(msg)
+
+	if err != nil {
+
+		t.Fail()
+	}
+}
+
+func TestSendWithNewSticker(t *testing.T) {
+	bot, err := tgbotapi.NewBotAPI(os.Getenv("TELEGRAM_API_TOKEN"))
+
+	if err != nil {
+		t.Fail()
+	}
+
+	msg := tgbotapi.NewStickerUpload(76918703, "tests/image.jpg")
+
+	_, err = bot.Send(msg)
+
+	if err != nil {
+
+		t.Fail()
+	}
+}
+
+func TestSendWithExistingSticker(t *testing.T) {
+	bot, err := tgbotapi.NewBotAPI(os.Getenv("TELEGRAM_API_TOKEN"))
+
+	if err != nil {
+		t.Fail()
+	}
+
+	msg := tgbotapi.NewStickerShare(76918703, "BQADAgADUwADhwGzCmwtOypNFlrRAg")
+
+	_, err = bot.Send(msg)
+
+	if err != nil {
+
+		t.Fail()
+	}
+}
+
+func TestSendWithNewStickerAndKeyboardHide(t *testing.T) {
+	bot, err := tgbotapi.NewBotAPI(os.Getenv("TELEGRAM_API_TOKEN"))
+
+	if err != nil {
+		t.Fail()
+	}
+
+	msg := tgbotapi.NewStickerUpload(76918703, "tests/image.jpg")
+	msg.ReplyMarkup = tgbotapi.ReplyKeyboardHide{true, false}
+	_, err = bot.Send(msg)
+
+	if err != nil {
+
+		t.Fail()
+	}
+}
+
+func TestSendWithExistingStickerAndKeyboardHide(t *testing.T) {
+	bot, err := tgbotapi.NewBotAPI(os.Getenv("TELEGRAM_API_TOKEN"))
+
+	if err != nil {
+		t.Fail()
+	}
+
+	msg := tgbotapi.NewStickerShare(76918703, "BQADAgADUwADhwGzCmwtOypNFlrRAg")
+	msg.ReplyMarkup = tgbotapi.ReplyKeyboardHide{true, false}
+
+	_, err = bot.Send(msg)
+
+	if err != nil {
+
+		t.Fail()
+	}
+}
+
 func TestGetFile(t *testing.T) {
 	bot, err := tgbotapi.NewBotAPI(os.Getenv("TELEGRAM_API_TOKEN"))
 
diff --git a/tests/video.mp4 b/tests/video.mp4
new file mode 100644
index 0000000..a203d0c
Binary files /dev/null and b/tests/video.mp4 differ
diff --git a/types_test.go b/types_test.go
new file mode 100644
index 0000000..1e0036d
--- /dev/null
+++ b/types_test.go
@@ -0,0 +1,74 @@
+package tgbotapi_test
+
+import (
+	"github.com/zhulik/telegram-bot-api"
+	"testing"
+	"time"
+)
+
+func TestUserStringWith(t *testing.T) {
+	user := tgbotapi.User{0, "Test", "Test", ""}
+
+	if user.String() != "Test Test" {
+		t.Fail()
+	}
+}
+
+func TestUserStringWithUserName(t *testing.T) {
+	user := tgbotapi.User{0, "Test", "Test", "@test"}
+
+	if user.String() != "@test" {
+		t.Fail()
+	}
+}
+
+func TestMessageIsGroup(t *testing.T) {
+	from := tgbotapi.User{ID: 0}
+	chat := tgbotapi.Chat{ID: 10}
+	message := tgbotapi.Message{From: from, Chat: chat}
+
+	if message.IsGroup() != true {
+		t.Fail()
+	}
+}
+
+func TestMessageTime(t *testing.T) {
+	message := tgbotapi.Message{Date: 0}
+
+	date := time.Unix(0, 0)
+	if message.Time() != date {
+		t.Fail()
+	}
+}
+
+func TestChatIsPrivate(t *testing.T) {
+	chat := tgbotapi.Chat{ID: 10, Type: "private"}
+
+	if chat.IsPrivate() != true {
+		t.Fail()
+	}
+}
+
+func TestChatIsGroup(t *testing.T) {
+	chat := tgbotapi.Chat{ID: 10, Type: "group"}
+
+	if chat.IsGroup() != true {
+		t.Fail()
+	}
+}
+
+func TestChatIsChannel(t *testing.T) {
+	chat := tgbotapi.Chat{ID: 10, Type: "channel"}
+
+	if chat.IsChannel() != true {
+		t.Fail()
+	}
+}
+
+func TestFileLink(t *testing.T) {
+	file := tgbotapi.File{FilePath: "test/test.txt"}
+
+	if file.Link("token") != "https://api.telegram.org/file/bottoken/test/test.txt" {
+		t.Fail()
+	}
+}
\ No newline at end of file