feat: E2E telegramify test

Author: naqerl

.env.example

@@ -0,0 +1,2 @@
+export TEST_BOT_TOKEN=
+export RECEIVER_PEER_ID=

.gitignore

@@ -0,0 +1 @@
+.env

go.mod

@@ -2,6 +2,7 @@ module github.com/ai-shift/tgmd
 
 go 1.24.3
 
-require github.com/gomarkdown/markdown v0.0.0-20250311123330-531bef5e742b
-
-require github.com/yuin/goldmark v1.7.12 // indirect
+require (
+	github.com/go-telegram-bot-api/telegram-bot-api/v5 v5.5.1
+	github.com/gomarkdown/markdown v0.0.0-20250311123330-531bef5e742b
+)

go.sum

@@ -1,3 +1,4 @@
+github.com/go-telegram-bot-api/telegram-bot-api/v5 v5.5.1 h1:wG8n/XJQ07TmjbITcGiUaOtXxdrINDz1b0J1w0SzqDc=
+github.com/go-telegram-bot-api/telegram-bot-api/v5 v5.5.1/go.mod h1:A2S0CWkNylc2phvKXWBBdD3K0iGnDBGbzRpISP2zBl8=
 github.com/gomarkdown/markdown v0.0.0-20250311123330-531bef5e742b h1:EY/KpStFl60qA17CptGXhwfZ+k1sFNJIUNR8DdbcuUk=
 github.com/gomarkdown/markdown v0.0.0-20250311123330-531bef5e742b/go.mod h1:JDGcbDT52eL4fju3sZ4TeHGsQwhG9nbDV21aMyhwPoA=
-github.com/yuin/goldmark v1.7.12/go.mod h1:ip/1k0VRfGynBgxOz0yCqHrbZXhcjxyuS66Brc7iBKg=

tgmd_test.go

@@ -6,6 +6,9 @@ import (
 	"slices"
 	"strings"
 	"testing"
+	"strconv"
+
+	tgbotapi "github.com/go-telegram-bot-api/telegram-bot-api/v5"
 )
 
 func init() {
@@ -25,3 +28,21 @@ func TestRenderTelegram(t *testing.T) {
 		}
 	}
 }
+
+func TestRenderE2E(t *testing.T) {
+	bot, err := tgbotapi.NewBotAPI(os.Getenv("TEST_BOT_TOKEN"))
+	receiverID, _ := strconv.ParseInt(os.Getenv("RECEIVER_PEER_ID"), 10, 64)
+	if err != nil {
+		t.Errorf("failed to create bot API with %s", err)
+		t.Fatal()
+	}
+
+	input, _ := os.ReadFile("_testdata/input1.md")
+	got := Telegramify(string(input))
+	msg := tgbotapi.NewMessage(receiverID, got)
+	msg.ParseMode = "MarkdownV2"
+	_, err = bot.Send(msg)
+	if err != nil {
+		t.Errorf("failed to send telegram messge with %s\nMessage: %s", err, got)
+	}
+}