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fix: preserve formatted date message entities

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A 2026-07-05 20:42:13 +08:00
parent 53105b6823
commit 03b785ebf4
10 changed files with 214 additions and 31 deletions
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46
internal/compat/layerwire/transcode_test.go
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@ -89,6 +89,52 @@ func TestTranscodeMessageGolden(t *testing.T) {
}
}
func TestTranscodeFormattedDateEntityLayerBoundary(t *testing.T) {
const formattedDateEntityCRC = 0x904ac7c7
entityCRC := func(crc uint32) []byte {
return []byte{byte(crc), byte(crc >> 8), byte(crc >> 16), byte(crc >> 24)}
}
msg := &tg.Message{
ID: 7,
PeerID: &tg.PeerUser{UserID: 2},
Date: 100,
Message: "Meet soon",
Entities: []tg.MessageEntityClass{
&tg.MessageEntityFormattedDate{Offset: 5, Length: 4, Date: 1773436800, ShortDate: true, ShortTime: true},
},
}
raw := mustEncode(t, msg)
out222, err := Transcode(raw, 222)
if err != nil {
t.Fatalf("transcode message->222: %v", err)
}
if bytes.Contains(out222, entityCRC(formattedDateEntityCRC)) {
t.Fatalf("layer 222 output leaked formatted-date entity")
}
if !bytes.Contains(out222, entityCRC(messageEntityUnknownID)) {
t.Fatalf("layer 222 output missing messageEntityUnknown fallback")
}
m222 := loadLayerModel(t, 222)
b222 := &bin.Buffer{Buf: append([]byte(nil), out222...)}
if err := m222.skipObject(b222); err != nil || b222.Len() != 0 {
t.Fatalf("layer 222 formatted-date fallback does not parse cleanly (err=%v left=%d)", err, b222.Len())
}
out223, err := Transcode(raw, 223)
if err != nil {
t.Fatalf("transcode message->223: %v", err)
}
if !bytes.Contains(out223, entityCRC(formattedDateEntityCRC)) {
t.Fatalf("layer 223 output did not preserve formatted-date entity")
}
m223 := loadLayerModel(t, 223)
b223 := &bin.Buffer{Buf: append([]byte(nil), out223...)}
if err := m223.skipObject(b223); err != nil || b223.Len() != 0 {
t.Fatalf("layer 223 formatted-date output does not parse cleanly (err=%v left=%d)", err, b223.Len())
}
}
// TestTranscodePassthroughNonAPI verifies that a top-level constructor absent
// from the tg schema (an MTProto control object such as rpc_error) passes
// through untouched at any layer.