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welcome message: link @zio with a mention entity

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This commit is contained in:
Astra 2026-09-08 16:29:37 +01:00
parent 4d781a52bb
commit d4fe056854
2 changed files with 62 additions and 2 deletions
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23
internal/domain/welcome_message_test.go
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@ -3,6 +3,7 @@ package domain
import (
"errors"
"testing"
"unicode/utf16"
)
func TestWelcomeMessageContentAndFingerprint(t *testing.T) {
@ -52,3 +53,25 @@ func TestNextWelcomeRevision(t *testing.T) {
t.Fatalf("zero revision err = %v", err)
}
}
func TestOfficialWelcomeMessageLinksUpdatesChannel(t *testing.T) {
body := "Welcome! Join " + officialUpdatesChannelMention + " for updates."
msg, err := OfficialWelcomeMessage(1780243200, body, 1_700_000_000)
if err != nil {
t.Fatalf("body %q: %v", body, err)
}
if len(msg.Entities) != 1 {
t.Fatalf("body %q: entities = %+v, want one mention", body, msg.Entities)
}
ent := msg.Entities[0]
if ent.Type != MessageEntityMention {
t.Fatalf("entity type = %q, want mention", ent.Type)
}
units := utf16.Encode([]rune(msg.Body))
if ent.Offset < 0 || ent.Length <= 0 || ent.Offset+ent.Length > len(units) {
t.Fatalf("entity %+v out of bounds for body of %d utf16 units", ent, len(units))
}
if got := string(utf16.Decode(units[ent.Offset : ent.Offset+ent.Length])); got != officialUpdatesChannelMention {
t.Fatalf("entity spans %q, want %q", got, officialUpdatesChannelMention)
}
}