Фикс: исправлено исчезновение части уведомлений при открытии пуша

RosettaTests/SchemaParityTests.swift

@@ -153,6 +153,65 @@ final class SchemaParityTests: XCTestCase {
 
         XCTAssertEqual(decoded.packetId, 0x06)
         XCTAssertEqual(decodedMessage.attachments.first?.type, .call)
+        XCTAssertFalse(decodedMessage.isMalformed)
+    }
+
+    func testPacketMessageDecodeSupportsAttachmentMeta4Compatibility() throws {
+        let encoded = makePacketMessageData(attachmentMetaFieldCount: 4)
+        guard let decoded = PacketRegistry.decode(from: encoded),
+              let message = decoded.packet as? PacketMessage else {
+            XCTFail("Failed to decode packet with 4 attachment meta fields")
+            return
+        }
+
+        XCTAssertEqual(decoded.packetId, 0x06)
+        XCTAssertFalse(message.isMalformed)
+        XCTAssertEqual(message.fromPublicKey, "02from")
+        XCTAssertEqual(message.toPublicKey, "02to")
+        XCTAssertEqual(message.messageId, "msg-compat")
+        XCTAssertEqual(message.aesChachaKey, "aes-key")
+        XCTAssertEqual(message.attachments.count, 1)
+        XCTAssertEqual(message.attachments[0].transportTag, "tag-1")
+        XCTAssertEqual(message.attachments[0].transportServer, "cdn.rosetta.im")
+    }
+
+    func testPacketMessageDecodeSupportsAttachmentMeta0Compatibility() throws {
+        let encoded = makePacketMessageData(attachmentMetaFieldCount: 0)
+        guard let decoded = PacketRegistry.decode(from: encoded),
+              let message = decoded.packet as? PacketMessage else {
+            XCTFail("Failed to decode packet with 0 attachment meta fields")
+            return
+        }
+
+        XCTAssertEqual(decoded.packetId, 0x06)
+        XCTAssertFalse(message.isMalformed)
+        XCTAssertEqual(message.messageId, "msg-compat")
+        XCTAssertEqual(message.aesChachaKey, "aes-key")
+        XCTAssertEqual(message.attachments.count, 1)
+        XCTAssertEqual(message.attachments[0].transportTag, "")
+        XCTAssertEqual(message.attachments[0].transportServer, "")
+    }
+
+    func testPacketMessageDecodeMarksMalformedForTruncatedOrMisalignedPayload() throws {
+        let canonical = makePacketMessageData(attachmentMetaFieldCount: 2)
+        let truncated = canonical.dropLast(3)
+        let withTrailingByte = canonical + Data([0x00])
+
+        guard let decodedTruncated = PacketRegistry.decode(from: Data(truncated)),
+              let messageTruncated = decodedTruncated.packet as? PacketMessage else {
+            XCTFail("Failed to decode truncated packet wrapper")
+            return
+        }
+        XCTAssertTrue(messageTruncated.isMalformed)
+        XCTAssertFalse(messageTruncated.malformedFingerprint.isEmpty)
+
+        guard let decodedTrailing = PacketRegistry.decode(from: withTrailingByte),
+              let messageTrailing = decodedTrailing.packet as? PacketMessage else {
+            XCTFail("Failed to decode trailing-byte packet wrapper")
+            return
+        }
+        XCTAssertTrue(messageTrailing.isMalformed)
+        XCTAssertFalse(messageTrailing.malformedFingerprint.isEmpty)
     }
 
     func testSessionPacketContextResolverAcceptsGroupWireShape() throws {
@@ -188,4 +247,33 @@ final class SchemaParityTests: XCTestCase {
         _ = stream
         XCTAssertTrue(true)
     }
+
+    private func makePacketMessageData(attachmentMetaFieldCount: Int) -> Data {
+        let stream = Rosetta.Stream()
+        stream.writeInt16(PacketMessage.packetId)
+        stream.writeString("02from")
+        stream.writeString("02to")
+        stream.writeString("ciphertext")
+        stream.writeString("chacha-key")
+        stream.writeInt64(1_710_000_000_000)
+        stream.writeString("hash")
+        stream.writeString("msg-compat")
+        stream.writeInt8(1)
+        stream.writeString("att-1")
+        stream.writeString("preview")
+        stream.writeString("blob")
+        stream.writeInt8(AttachmentType.image.rawValue)
+
+        if attachmentMetaFieldCount >= 2 {
+            stream.writeString("tag-1")
+            stream.writeString("cdn.rosetta.im")
+        }
+        if attachmentMetaFieldCount >= 4 {
+            stream.writeString("02encoded-for")
+            stream.writeString("desktop")
+        }
+
+        stream.writeString("aes-key")
+        return stream.toData()
+    }
 }