Commit Graph
21 Commits
Author SHA1 Message Date
b31a63ce37 Burn down SwiftLint advisory violations from 109 to 4 (#1362)
Mechanical style fixes across the enabled rule set, mostly via
swiftlint --fix (trailing_comma, comma, colon, trailing_newline,
comment_spacing, unused_closure_parameter, unneeded_break_in_switch,
opening_brace) plus hand fixes:

- non_optional_string_data_conversion (45): .data(using: .utf8)! and
  ?? Data() fallbacks replaced with the non-optional Data(_.utf8),
  including two production sites (NIP-44 HKDF info constant and the
  announce canonicalization context/nickname bytes — byte-identical
  output, only the impossible-nil handling is gone).
- switch_case_alignment: LocationChannel had a misindented closing
  brace; also repaired an --fix artifact in BLEService's .none case.
- redundant_string_enum_value: TrustLevel raw values equal to the case
  names (encoded form unchanged).
- unused_optional_binding: let _ = binds replaced with != nil / is Bool.
- static_over_final_class: PreviewView.layerClass.
- Resolved the BinaryProtocolTests TODO by documenting that 8-byte
  recipient ID truncation is the fixed wire-field size, not a bug.

The 4 remaining violations are all todo markers for a shared
test-helpers module (tracked in #1088) and one Reuse note.

Co-authored-by: jack <jackjackbits@users.noreply.github.com>
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-05 14:09:13 +02:00
IslamandGitHub c60eff2c11 Move additional files/tests to BitFoundation (#1102) 2026-04-15 12:26:48 -05:00
IslamandGitHub 4cfcefcda6 BitFoundation module to centralize shared components (#1089)
* Run local packages’ tests as well on CI

* BitFoundation module to centralize shared components
2026-04-14 14:10:03 -05:00
3d914dcf46 Convert the remaining tests to Swift Testing (#781)
* SwiftTesting: NoiseProtocolTests + BinaryProtocolPaddingTests

* SwiftTesting: `NotificationStreamAssemblerTests`

* SwiftTesting: `NostrProtocolTests`

* SwiftTesting: `BinaryProtocolTests`

* SwiftTesting: `PeerIDTests`

* SwiftTesting: `BLEServiceTests`

* SwiftTesting: `CommandProcessorTests`

* SwiftTesting: `GCSFilterTests`

* SwiftTesting: `GeohashBookmarksStoreTests`

* Remove `peerID` test constants

* Remove PeerID + String interop from tests

* Refactor IntegrationTests to extract state management

* Refactor global state management of MockBLEService

* NoiseProtocolSwiftTests: `actor` -> `struct`

* Remove measurement tests w/ no benchmark

* `NoiseProtocolSwiftTests` -> `NoiseProtocolTests`

* SwiftTesting: `LocationChannelsTests`

* SwiftTesting: `GossipSyncManagerTests`

* SwiftTesting: `LocationNotesManagerTests`

* Global `sleep` function for tests

* SwiftTesting: `IntegrationTests`

---------

Co-authored-by: jack <jackjackbits@users.noreply.github.com>
2025-10-15 01:04:01 +02:00
IslamandGitHub d371131ad5 Remove MockBluetoothMeshService (#777) 2025-10-09 23:47:01 +02:00
IslamandGitHub 551a843691 PeerID 18/n: BitchatDelegate + Tests (#769) 2025-10-07 16:01:53 +02:00
IslamandGitHub 5f44c56a90 PeerID 15/n: Bitchat Message & Packet accept in init (#754) 2025-10-06 17:16:11 +02:00
IslamandGitHub 03c357f048 PeerID 11/n: Noise types use PeerID + create separate files (#750)
* Noise types use PeerID

* Fix tests

* Extract `NoiseSessionManager` into a separate file

* Extract `NoiseSessionState` into a separate file

* Remove `failed` state from `NoiseSessionState`

* Extract `NoiseSessionError` into a separate file
2025-10-05 15:51:06 +02:00
IslamandGitHub bdc31d3be3 Don’t auto-register mock BLE services on creation (#746) 2025-10-05 12:36:35 +02:00
IslamandGitHub 90273cee2d PeerID 4/n: BitchatMessage.senderPeerID + String equality (#739) 2025-10-02 12:57:17 +02:00
IslamandGitHub ea8d51a36b Refactor: BitchatMessage (#610)
* Extract BitchatMessage into a separate file

* Convert `fromBinaryPayload` to `convenience init?`

* Extract message dedup into an extension

* Remove dead `formatMessageContent`

* Minor refactor of timestamp and username formatting

* Remove dead `getSenderColor`
2025-09-15 15:00:12 +02:00
920dc31795 Refactor: Testable Keychain and Identity Manager (#584)
* Make static functions instance functions to be testable

* Injectable KeychainManager + Mock + updated tests

* Remove `pendingActions` from identity manager (dead code)

* Remove `getHandshakeState` from identity manager (dead code)

* Remove `getAllSocialIdentities` from identity manager (dead code)

* Remove `getCryptographicIdentity` from identity manager (dead code)

* Remove `resolveIdentity` from identity manager (dead code)

* Identity Manager: minor clean up

* Put Identity Manager behind a protocol

* Remove Keychain and Identity Manager singletons

* Tests: include MockKeychain/MockIdentityManager in project; init identityManager in CommandProcessorTests

---------

Co-authored-by: jack <jackjackbits@users.noreply.github.com>
2025-09-12 14:37:34 +02:00
a30b73dd99 Feature/fragmentation fixes (#453)
* Fix fragmentation + BLE long-write + padding

- Accumulate CBATTRequest long writes by offset and decode once per central
- Decode original packet after fragment reassembly (preserve flags/compression)
- Switch MessagePadding to strict PKCS#7 and validate before unpadding
- Make BinaryProtocol.decode robust: try raw first, then unpad fallback
- Unpad frames before BLE notify; fragment when exceeding centrals' max update length
- Skip notify path when max update length < 21 bytes (protocol minimum)

Verified large PMs and announces route without decode errors and peers show reliably.

* Tests: fix weak delegate lifetime, legacy constants, and unused vars; fragment unpadded frames

- BLEServiceTests: hold strong reference to MockBitchatDelegate
- IntegrationTests: fix inline comment braces; replace removed types with test-safe values; use numeric 0x06 for legacy handshake resp checks
- BinaryProtocolTests: remove unused minResult variable
- BLEService: fragment the unpadded frame so fragments are efficient

* tests: add Noise rehandshake recovery test; document in-memory test bus and autoFlood; stabilize large-network broadcast

* tests: align suite with current behavior (compression, padding, routing, nonce); deflake and stabilize

---------

Co-authored-by: jack <jackjackbits@users.noreply.github.com>
2025-08-19 01:22:21 +02:00
845ffc601b Refactor/robustness (#446)
* Refactor BitChat for improved robustness and performance

Major refactoring to simplify architecture and fix critical issues:

Architecture Improvements:
- Replace complex BluetoothMeshService with simplified SimplifiedBluetoothService
- Consolidate message routing and peer management into unified services
- Remove redundant caching layers and optimize performance

Bug Fixes:
- Fix critical BLE peer mapping corruption in mesh networks
- Fix encrypted message routing failures in multi-peer scenarios
- Fix app freezes and Main Thread Checker warnings
- Fix BLE message delivery in dual-role connections
- Fix favorite toggle UI not updating instantly
- Fix Nostr offline messaging with 24-hour message filtering

Features:
- Add command processor for chat commands
- Add autocomplete service for mentions and commands
- Improve private chat management with dedicated service
- Add unified peer service for consistent state management

Performance:
- Optimize BLE reconnection speed
- Reduce excessive logging throughout codebase
- Improve message deduplication efficiency
- Optimize UI updates and state management

* Improvements refactor robust (#441)

* remove unused code

* remove more

* TLV for announcement

* restore

* restore

* restore?

* messages tlv too (#442)

* Fix Nostr notification and read receipt issues, add TLV encoding, cleanup unused code

## Notification & Read Receipt Fixes
- Fixed toolbar notification icon appearing incorrectly on app restart for already-read messages
- Fixed read receipts being incorrectly deleted on startup when privateChats was empty
- Fixed messages not being marked as read when opening chat for first time
- Fixed senderPeerID not being updated during message consolidation
- Added startup phase logic to block old messages (>30s) while allowing recent ones
- Fixed unread status checking across all storage locations (ephemeral, stable Noise keys, temporary Nostr IDs)

## TLV Encoding Implementation
- Implemented Type-Length-Value encoding for private message payloads
- Added PrivateMessagePacket struct with TLV encode/decode methods
- Enhanced message structure for better extensibility and robustness

## Code Cleanup
- Removed unused PeerStateManager class and related dependencies
- Removed dead protocol types (DeliveryAck, ProtocolAck/Nack, NoiseIdentityAnnouncement)
- Cleaned up BitchatDelegate by removing unused methods
- Removed excessive debug logging throughout ChatViewModel
- Added test-only ProtocolNack helper for integration tests

## Technical Details
- Messages stored under three ID types: ephemeral peer IDs, stable Noise key hexes, temporary Nostr IDs
- Fixed cleanupOldReadReceipts() to skip when privateChats is empty or during startup
- Updated message consolidation to properly update senderPeerID
- Restored NIP-17 timestamp randomization (±15 minutes) for privacy

---------

Co-authored-by: jack <jackjackbits@users.noreply.github.com>
Co-authored-by: callebtc <93376500+callebtc@users.noreply.github.com>
2025-08-17 01:51:54 +02:00
a97d5c2d5e Implement Nostr NIP-17 for offline messaging and performance optimizations (#358)
* Implement Nostr NIP-17 integration for offline mutual favorite messaging

- Add Nostr relay connectivity and NIP-17 gift-wrapped private messages
- Implement dual transport system: Bluetooth mesh + Nostr relays
- Add favorites persistence with mutual detection and Nostr key exchange
- Support offline messaging for mutual favorites via Nostr relays
- Handle peer identity rotation with automatic favorite key updates
- Fix UI to show all favorites (online and offline) in peer list
- Add proper message routing based on peer availability
- Update peer list icons: 📶 for mesh, 🌐 for Nostr, 🌙 for one-sided
- Fix toolbar display for offline peers in private chat view
- Add network entitlements for macOS and iOS
- Implement automatic noise key updates when peers reconnect

* Implement Nostr NIP-17 for private messaging between mutual favorites

- Add support for NIP-17 gift-wrapped private messages with double encryption
- Enable private messaging via Nostr when mutual favorites are offline
- Fix peer reconnection issues: users now stay in private chat when peer reconnects
- Fix read receipt delivery: send pending receipts when peer comes back online
- Add message ID tracking through Nostr transport for proper delivery acknowledgments
- Update peer noise key mapping when peers reconnect with different IDs
- Check for Nostr messages when app becomes active
- Implement 7-day message retrieval window for better reliability

* Fix private message UI refresh and adjust PEOPLE header spacing

- Fix UI not updating when receiving private messages on mesh
  - Add immediate batch processing for messages in active chat
  - Force UI update when viewing current chat peer
  - Ensure real-time message display without navigation
- Reduce PEOPLE header spacing from 16 to 12 points for tighter UI

* Fix build errors and unused value warnings in Nostr favorites integration

* Implement read receipts via Nostr

- Added sendReadReceipt method to MessageRouter to send receipts via mesh or Nostr
- Added handleReadReceipt to process incoming read receipts from Nostr
- Made ReadReceipt.readerID mutable to allow updates
- Added missing notification names and error cases
- Uncommented and enabled read receipt handling in ChatViewModel
- Read receipts now work seamlessly via both mesh and Nostr transports

* Fix ReadReceipt initialization - use correct constructor

* Implement persistent message deduplication for Nostr

- Added ProcessedMessagesService to track messages across app restarts
- Store processed message IDs and last timestamp in UserDefaults
- Skip already processed messages when receiving from Nostr
- Adjust subscription filter to use smart timestamp (last processed or 24h)
- Prevents duplicate messages when reconnecting to Nostr relays

* Fix peer list UI not updating to Nostr mode on disconnect

- Remove peer from peerNicknames when connection state changes to disconnected
- Ensures UI properly reflects peer disconnection state
- Peer list now correctly shows Nostr mode (🌐) when peer walks out of range

* Update peer count to include Nostr peers and improve UI indicators

- Peer count now shows total peers including those available via Nostr
- Count appears purple when only Nostr peers are connected
- Private message header shows purple globe icon for Nostr transport
- Consistent visual language for Nostr connectivity across the app

* Improve RSSI real-time updates and fix UI flashing

- Reduce RSSI update timer from 10s to 5s and per-peripheral from 5s to 3s
- Add RSSI change detection with 2 dBm threshold for responsive updates
- Always update previous RSSI values to fix gradual change detection bug
- Trigger RSSI read on peer authentication for immediate status
- Fix UI flashing 'nobody around' by removing array clearing on updates
- Add proper cleanup of RSSI tracking on disconnect and peer rotation

* Fix favorite nickname updates and peer list filtering

- Add updateNickname method to FavoritesPersistenceService to update nicknames while preserving favorite status
- Update announce handler to check for existing favorites and update their nicknames
- Remove dead BluetoothMeshService+PublicAPI.swift file
- Move sendFavoriteNotification to main BluetoothMeshService
- Fix peer list to only show connected peers and user's favorites (not peers who favorite the user)
- Remove UI logic for showing peers who favorite us but we don't favorite back

* Remove dead code and fix ghost connections

Phase 1 - Remove abandoned peer ID rotation code:
- Remove previousPeerID property and rotationGracePeriod constant
- Remove grace period logic from isPeerIDOurs()
- Remove previousPeerID handling from announce packets
- Pass nil for previousPeerID in identity announcements

Phase 2 - Fix ghost connections from relayed packets:
- CRITICAL FIX: Only add peers to activePeers if they have a peripheral connection
- Check for peripheral connection before marking peer as active
- Prevents ghost connections when announce packets are relayed
- Log warning when rejecting relayed announce without peripheral

Phase 3 - Begin consolidating redundant peer tracking:
- Create new PeerSession class to unify peer data in one place
- Add helper methods for PeerSession management
- Integrate PeerSession into announce packet handling
- Update authentication state changes to use PeerSession
- Update peripheral mapping and RSSI to sync with PeerSession
- Update disconnect and leave handling to update PeerSession
- Add consolidated getter methods for peer info

This fixes the issue where peers appeared connected without actually having a Bluetooth connection, and begins the migration to a cleaner single-source-of-truth peer tracking system.

* Fix multiple connect messages on peer restart

- Move hasPeripheralConnection check outside sync block to fix scope issue
- Add debug logging to track connect message conditions
- Ensure connect messages only show on first connection or reconnection with peripheral

* Optimize RSSI updates for better battery life

- Add app state tracking to BluetoothMeshService
- Only update RSSI when app is in foreground and peer list is visible
- Add setPeerListVisible method to control RSSI updates
- Remove individual periodic RSSI updates in favor of centralized timer
- Update ContentView to notify mesh service of peer list visibility changes
- Improve battery efficiency by avoiding unnecessary RSSI reads

* Initialize peer list visibility state on view appear

- Ensure RSSI timer state is properly initialized when view loads
- Call setPeerListVisible with initial showSidebar value

* Fix duplicate peers and multiple disconnect messages

- Fixed duplicate peer entries when relay-connected by adding relay-connected peers to connectedNicknames set
- Added deduplication logic for disconnect messages with 2-second window to prevent multiple disconnect notifications for same peer
- Added cleanup for old disconnect notification tracking to prevent memory growth

* Fix peer count indicator color logic

- Show green for any mesh peer (direct Bluetooth or relay connected)
- Show purple only for Nostr-only peers (no mesh connections)
- Show red only when no peers are reachable at all
- Fixed to use meshPeerCount instead of viewModel.isConnected which only checked direct connections

* Fix relay connection issues and peripheral mapping cleanup

- Fixed relay-connected peers being marked as directly connected when receiving identity announce
- Added proper cleanup of temp peripheral mappings when discovering real peer ID
- Fixed disconnect notification deduplication cleanup
- Improved debug logging to show actual connection state (direct/relay/nostr/offline)
- Added debug logging for relay connection detection
- Fixed compiler warning about unused variable

* Fix Unknown peer disconnect notifications and disable faulty relay detection

- Add check to prevent disconnect notifications for Unknown peers that never announced
- Disable relay connection detection until proper relay tracking is implemented
- In a 2-peer network, peers should never show as relay-connected

* Fix RSSI updates and peer visibility after reconnection

- Add updatePeers() call in didUpdatePeerList to refresh RSSI values in UI
- Track version hello times to better detect direct connections
- Allow peers to be marked active if recent version hello received
- Fix thread safety for version hello tracking
- Clean up old version hello times to prevent memory leaks

* Remove RSSI tracking completely and replace with radio icon for mesh connections

* Fix build errors after RSSI removal

- Add missing peripheralID declaration in didDiscover delegate method
- Remove obsolete setPeerListVisible calls from ContentView

* Center private message header elements using ZStack layout

- Replace HStack with ZStack for perfect centering
- Globe/nick/lock cluster now always centered regardless of button sizes
- Back and favorite buttons positioned in overlay HStack

* Fix private chat view showing Unknown when peer reconnects with new ID

- Update FavoritesPersistenceService to notify with both old and new keys
- Handle peer ID changes in ChatViewModel to migrate private chat data
- Update selectedPrivateChatPeer when favorite's noise key changes
- Maintain chat history and unread status across peer ID changes

* Fix read receipts after peer reconnection and replace nos.lol relay

- Updated sendReadReceipt to resolve current peer ID when peers reconnect with new IDs
- Enhanced MessageRouter to check favorites for current noise keys
- Replaced nos.lol relay with relay.snort.social to avoid PoW requirements

* Fix message routing to use Nostr when peers are disconnected

Changed message routing logic to check actual peer connection status using
isPeerConnected() instead of just checking if peer exists in nickname list.
This ensures that offline mutual favorites correctly route messages through
Nostr instead of attempting Bluetooth handshakes.

Also added safety check to prevent starting private chat with ourselves.

* Add debug logging for Nostr timestamp randomization

Added logging to track the random offset being applied to Nostr event
timestamps to debug why messages appear 8-9 minutes in the future.

* Fix Nostr timestamp issue by reducing randomization range

Temporarily reduced the timestamp randomization from +/-15 minutes to +/-1 minute
to address messages appearing 8-9 minutes in the future. Added detailed UTC/local
time logging to help debug the issue.

The random offset should have been evenly distributed but was consistently
showing positive offsets. This change mitigates the issue while we investigate
the root cause.

* Fix message routing for offline favorites and reduce Nostr timestamp randomization

- Fix transport selection to properly detect disconnected peers using isPeerConnected()
- Change from checking peer nicknames to checking actual connection status
- Reduce Nostr timestamp randomization from ±15 minutes to ±1 minute
- Add detailed timestamp logging for debugging

* Improve PM header UI and encryption status display

- Show transport icons (radio/link/globe) in PM header matching peer list
- Always show lock icon if noise session ever established (no handshake icon)
- Change verified icon from shield to checkmark seal
- Use consistent green color (textColor) for PM header and encryption icons

* Update AI_CONTEXT.md with comprehensive Nostr implementation details

- Add Nostr and MessageRouter to architecture diagram
- Document NIP-17 gift wrap implementation
- Explain favorites integration and mutual requirement
- Detail message routing logic and transport selection
- Add security considerations and debugging tips
- Update common tasks with Nostr-specific guidance

* Fix data consistency issues in favorites, chat migration, and bloom filter

- Fix favorites deduplication to use public key instead of nickname
  Prevents losing favorites when multiple peers use same nickname

- Fix private chat migration to use fingerprints instead of nicknames
  Prevents merging unrelated conversations that share nicknames
  Fallback to nickname matching only for legacy data without fingerprints

- Fix bloom filter reset to preserve messages from last 10 minutes
  Prevents duplicate message processing after bloom filter resets
  Keeps processedMessages for 10 minutes while bloom filter resets every 5

* Add mutual favorites internet messaging to app info

* Remove excessive debug/info logging for production readiness

- Removed ~140 debug/info level logs across core services
- Preserved critical logs: errors, warnings, security events, state changes
- Kept logs for: peer join/leave, favorite status, mutual relationships
- Cleaned up verbose logging in: Bluetooth mesh, Nostr, message routing
- Improved performance by reducing log I/O overhead

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

* Implement performance optimizations and fix build warnings

- Add UI update debouncing (50ms) to prevent excessive SwiftUI refreshes
- Implement memory bounds for processedMessages with LRU eviction
- Add encryption queue cleanup for disconnected peers
- Optimize peer lookups from O(n) to O(1) with indexed dictionary
- Fix multiple compiler warnings (unused variables, missing break statements)
- Optimize peer counting with single-pass reduce operation
- Fix ViewBuilder control flow issue in ContentView
- Fix Dictionary initialization type mismatches with Array wrapper

* Add TTL-based cleanup for Noise handshake sessions

- Add session TTL (5 minutes) and max session limit (50) to NoiseHandshakeCoordinator
- Clean up old established sessions to prevent unbounded memory growth
- Move handshake cleanup timer out of DEBUG conditional for production use
- Run cleanup every 60 seconds in production (vs 30s in debug)
- Clean up crypto state immediately on peer disconnect
- Prevents memory leaks from accumulating Noise sessions

* Pre-compute and store fingerprints in PeerSession for O(1) lookups

- Store fingerprint in PeerSession when peer authenticates
- Update getPeerFingerprint() and getFingerprint() to check PeerSession first
- Replace all noiseService.getPeerFingerprint() calls with optimized version
- Eliminates repeated SHA256 calculations during message processing
- Improves performance for favorite checks and encryption status updates

* Implement exponential backoff for Nostr relay connections

- Add reconnection tracking fields to Relay struct (attempts, timing)
- Replace fixed 5-second delay with exponential backoff (1s → 2s → 4s... max 5min)
- Stop reconnection attempts after 10 failures to prevent infinite retries
- Reset attempt counter on successful connection
- Add utility methods: retryConnection(), getRelayStatuses(), resetAllConnections()
- DNS failures still bypass retry logic as before
- Improves battery life and reduces server load from constant reconnection attempts

---------

Co-authored-by: jack <jackjackbits@users.noreply.github.com>
Co-authored-by: Claude <noreply@anthropic.com>
2025-07-30 23:14:17 +02:00
492f90edd5 Optimize BLE mesh network for robustness and range (#314)
- Fixed relay probability calculation for 2-node networks (0% relay needed)
- Added protocol ACKs to prevent unnecessary retransmissions
- Implemented MessageState for enhanced duplicate detection
- Added exponential backoff for collision avoidance
- Fixed duplicate sends for bidirectional connections
- Resolved packet ID generation issues using immutable fields only
- Implemented smart rate limiting with progressive throttling
- Removed unnecessary debug logging and fixed build warnings
- Optimized message routing to prevent flooding in small networks

Co-authored-by: jack <jackjackbits@users.noreply.github.com>
2025-07-24 19:49:37 +02:00
jack 2759202616 Fix NoiseSessionManager to always accept handshake initiations
Previously, NoiseSessionManager would reject handshake initiations if it had an existing established session. This caused deadlocks when one peer cleared their session (e.g., after decryption failure) but the other peer rejected the new handshake.

Changes:
- NoiseSessionManager now always accepts handshake initiations, clearing any existing session
- Added comprehensive tests for handshake recovery scenarios
- Tests verify proper re-establishment after decryption failures and nonce desynchronization
2025-07-23 19:03:41 +02:00
jack 557d5b915e Fix unused variable warning in integration tests
Replace unused 'decrypted' binding with underscore to suppress warning
2025-07-23 15:10:29 +02:00
jack 558bc52881 Add comprehensive tests for Noise handshake stability improvements
- Add test for peer restart detection and session recovery
- Add test for nonce desynchronization detection
- Add test for concurrent encryption thread safety
- Add test for session stale detection
- Add test for handshake after decryption failure
- Add integration test for peer presence tracking and reconnection
- Add integration test for encrypted messages after peer restart

These tests ensure:
- Sessions properly recover when a peer restarts
- Nonce desynchronization is detected correctly
- Encryption operations are thread-safe under concurrent load
- Identity announcements are sent on reconnection after silence
- Encrypted messages work after session re-establishment
2025-07-23 15:04:42 +02:00
jack 847d333366 Fix all compilation errors and warnings in test suite
- Fixed mock service property overrides to match base class properties
- Added missing CryptoKit imports where needed
- Fixed immutable property assignments by creating new instances
- Replaced XCTAssertThrows with XCTAssertThrowsError
- Fixed DeliveryAck serialization method names (serialize -> encode)
- Fixed unused variable warnings
- Ensured all BitchatPacket modifications create new instances
- Fixed BitchatMessage property mutations by creating new instances

All test targets now build successfully for both iOS and macOS platforms.
2025-07-23 09:25:57 +02:00
jack 96136ec364 Add comprehensive test suite for bitchat
- Created test utilities and helpers for common test operations
- Implemented Binary Protocol tests covering encoding/decoding, compression, and padding
- Added Noise Protocol tests for handshake, encryption, and session management
- Created Public Chat E2E tests for broadcasting, routing, TTL, and mesh topologies
- Implemented Private Chat E2E tests for direct messaging, delivery ACKs, and retry logic
- Added Integration tests for multi-peer scenarios, network resilience, and mixed traffic patterns
- Created mock implementations for BluetoothMeshService and NoiseSession

Test coverage includes:
- Protocol layer (binary encoding, message serialization)
- Security layer (Noise handshake, encryption/decryption)
- Application layer (public/private messaging, delivery tracking)
- Network scenarios (mesh topology, partitions, churn)
- Performance and stress testing
2025-07-23 08:56:13 +02:00