bitchat/bitchatTests
jack 2995b6abae Make the panic wipe confirmable and its outcome visible
The triple-tap panic wipe fired instantly with no confirmation, on the
same 18pt logo whose single tap opens App Info — while the far less
destructive triple-tap-to-clear-chat 40pt below it asks first, and the
Settings-pane panic button has always confirmed. A fumbled tap on the
app's only help affordance could permanently destroy identity, keys,
and messages.

- Triple-tap now raises the same confirmation dialog the Settings pane
  uses (one extra tap under duress; zero accidental wipes).
- A successful wipe leaves a "all data wiped — new identity created"
  system message: in duress, "did it work?" must not be a guess — the
  natural response to uncertainty is tapping again.
- A wipe that does not commit (panicRecoveryBlocked) was previously
  invisible: the app looked wiped, sat silently offline, and keys could
  still be on disk. It now shows a persistent red banner under the
  header saying data may remain and a relaunch retries.
- Settings/privacy copy no longer says "instantly" (all 30 locales).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-08-01 14:14:35 +03:00
..

Test Harness Guide

This test suite uses an in-memory networking harness to make end-to-end and integration tests deterministic, fast, and race-free without touching production code.

In-Memory Bus

  • File: bitchatTests/Mocks/MockBLEService.swift
  • Registry/Adjacency: Global registry maps peerID to a MockBLEService instance; adjacency records simulated links between peers.
  • Setup: Call MockBLEService.resetTestBus() in setUp() to clear state between tests.
  • Topology: Use simulateConnectedPeer(_:) and simulateDisconnectedPeer(_:) to add/remove links. connectFullMesh() helpers in tests build larger topologies.
  • Handlers: Tests can observe data via messageDeliveryHandler (decoded BitchatMessage) and packetDeliveryHandler (raw BitchatPacket).
  • Deduplication: A thread-safe seenMessageIDs prevents duplicate deliveries during flooding/relays.

Broadcast Flooding

  • Flag: MockBLEService.autoFloodEnabled
  • Intent: When true, public broadcasts propagate across the entire connected component (ignores TTL for reach) while still deduping to prevent loops.
  • Usage: Enabled in Integration tests (setUp) to simulate large-network broadcast; disabled in E2E tests to keep routing explicit and verify TTL behavior (see PublicChatE2ETests.testZeroTTLNotRelayed).

Rehandshake Flow (Noise)

  • Why: The legacy NACK recovery path was removed; recovery now relies on Noise session rehandshake after decrypt failure or desync.
  • Manager: NoiseSessionManager manages per-peer sessions.
  • Pattern: On decrypt failure, proactively clear the local session and re-initiate a handshake. The peer accepts and replaces their session.
  • Test: IntegrationTests.testRehandshakeAfterDecryptionFailure
    • Corrupts ciphertext to induce a decrypt error.
    • Calls removeSession(for:) on the initiators manager before initiateHandshake(with:) to avoid alreadyEstablished.
    • Verifies encrypt/decrypt succeeds post-rehandshake.

Tips

  • Determinism: Add small async delays only where handler installation/topology changes could race the first send.
  • Scoping: Keep autoFloodEnabled toggled only within Integration tests; always reset in tearDown() to avoid cross-test contamination.
  • Direct vs Relay: Private messages target a specific peer when adjacent; otherwise they are surfaced to neighbors for relay and, if known, also delivered to the target.

Quick Start

  • Create nodes and connect them:
    • let svc = MockBLEService(); svc.myPeerID = "PEER1"
    • svc.simulateConnectedPeer("PEER2")
  • Observe messages:
    • svc.messageDeliveryHandler = { msg in /* asserts */ }
  • Enable broadcast flooding for Integration suites only:
    • MockBLEService.autoFloodEnabled = true