Stabilize synchronous Noise restart tests

bitchatTests/BLEServiceCoreTests.swift

@@ -548,14 +548,25 @@ struct BLEServiceCoreTests {
         let mallory = NoiseEncryptionService(keychain: MockKeychain())
         let alicePeerID = PeerID(publicKey: alice.getStaticPublicKeyData())
 
-        let message1 = try ble._test_noiseInitiateHandshake(with: alicePeerID)
+        // Establish BLE as responder so the following inbound reconnect is
+        // not intentionally coalesced by the initiator-completion grace path.
+        let message1 = try alice.initiateHandshake(with: ble.myPeerID)
         let message2 = try #require(
-            try alice.processHandshakeMessage(from: ble.myPeerID, message: message1)
+            try ble._test_noiseProcessHandshakeMessage(
+                from: alicePeerID,
+                message: message1
+            )
         )
         let message3 = try #require(
-            try ble._test_noiseProcessHandshakeMessage(from: alicePeerID, message: message2)
+            try alice.processHandshakeMessage(
+                from: ble.myPeerID,
+                message: message2
+            )
+        )
+        _ = try ble._test_noiseProcessHandshakeMessage(
+            from: alicePeerID,
+            message: message3
         )
-        _ = try alice.processHandshakeMessage(from: ble.myPeerID, message: message3)
         await ble._test_drainNoiseMessagePipeline()
         #expect(ble.canDeliverSecurely(to: alicePeerID))
 
@@ -577,6 +588,9 @@ struct BLEServiceCoreTests {
             {
                 outbound.snapshot().contains {
                     $0.type == MessageType.noiseHandshake.rawValue
+                        && PeerID(hexData: $0.senderID) == ble.myPeerID
+                        && $0.payload.count
+                            != NoiseSecurityConstants.xxInitialMessageSize
                 }
             },
             timeout: TestConstants.longTimeout
@@ -585,6 +599,9 @@ struct BLEServiceCoreTests {
         let forgedMessage2 = try #require(
             outbound.snapshot().first {
                 $0.type == MessageType.noiseHandshake.rawValue
+                    && PeerID(hexData: $0.senderID) == ble.myPeerID
+                    && $0.payload.count
+                        != NoiseSecurityConstants.xxInitialMessageSize
             }?.payload
         )
         #expect(!ble.canDeliverSecurely(to: alicePeerID))

bitchatTests/Integration/IntegrationTests.swift

@@ -12,6 +12,7 @@ import Testing
 @testable import BitFoundation // to avoid unnecessary public's
 @testable import bitchat
 
+@Suite("Integration Tests", .serialized)
 struct IntegrationTests {
     
     private var helper = TestNetworkHelper()
@@ -272,8 +273,18 @@ struct IntegrationTests {
         // Re-establish Noise handshake explicitly via managers
         do {
             let m1 = try helper.noiseManagers["Bob"]!.initiateHandshake(with: helper.nodes["Alice"]!.peerID)
-            let m2 = try helper.noiseManagers["Alice"]!.handleIncomingHandshake(from: helper.nodes["Bob"]!.peerID, message: m1)!
+            let m2 = try #require(
-            let m3 = try helper.noiseManagers["Bob"]!.handleIncomingHandshake(from: helper.nodes["Alice"]!.peerID, message: m2)!
+                try helper.noiseManagers["Alice"]!.handleIncomingHandshake(
+                    from: helper.nodes["Bob"]!.peerID,
+                    message: m1
+                )
+            )
+            let m3 = try #require(
+                try helper.noiseManagers["Bob"]!.handleIncomingHandshake(
+                    from: helper.nodes["Alice"]!.peerID,
+                    message: m2
+                )
+            )
             _ = try helper.noiseManagers["Alice"]!.handleIncomingHandshake(from: helper.nodes["Bob"]!.peerID, message: m3)
         } catch {
             Issue.record("Failed to re-establish Noise session after restart: \(error)")

bitchatTests/Integration/TestNetworkHelper.swift

@@ -8,6 +8,7 @@
 
 import Foundation
 import CryptoKit
+import Testing
 @testable import BitFoundation // to avoid unnecessary public's
 @testable import bitchat
 
@@ -27,9 +28,14 @@ final class TestNetworkHelper {
         node.mockNickname = name
         nodes[name] = node
         
-        // Create/replace Noise manager for this node
+        // This synchronous helper directly drives all three XX messages and
+        // has no transport callback loop for delayed collision recovery.
         let key = Curve25519.KeyAgreement.PrivateKey()
-        noiseManagers[name] = NoiseSessionManager(localStaticKey: key, keychain: mockKeychain)
+        noiseManagers[name] = NoiseSessionManager(
+            localStaticKey: key,
+            keychain: mockKeychain,
+            recentInitiatorCompletionGracePeriod: 0
+        )
         return node
     }
     
@@ -108,8 +114,18 @@ final class TestNetworkHelper {
               let peer2ID = nodes[node2]?.peerID else { return }
         
         let msg1 = try manager1.initiateHandshake(with: peer2ID)
-        let msg2 = try manager2.handleIncomingHandshake(from: peer1ID, message: msg1)!
+        let msg2 = try #require(
-        let msg3 = try manager1.handleIncomingHandshake(from: peer2ID, message: msg2)!
+            try manager2.handleIncomingHandshake(
+                from: peer1ID,
+                message: msg1
+            )
+        )
+        let msg3 = try #require(
+            try manager1.handleIncomingHandshake(
+                from: peer2ID,
+                message: msg2
+            )
+        )
         _ = try manager2.handleIncomingHandshake(from: peer1ID, message: msg3)
     }
 }

bitchatTests/Noise/NoiseProtocolTests.swift

@@ -357,8 +357,18 @@ struct NoiseProtocolTests {
     
     @Test func peerRestartDetection() throws {
         // Establish initial sessions
-        let aliceManager = NoiseSessionManager(localStaticKey: aliceKey, keychain: mockKeychain)
+        // This test explicitly drives the three synchronous XX messages and
-        let bobManager = NoiseSessionManager(localStaticKey: bobKey, keychain: mockKeychain)
+        // does not exercise the transport's delayed collision recovery.
+        let aliceManager = NoiseSessionManager(
+            localStaticKey: aliceKey,
+            keychain: mockKeychain,
+            recentInitiatorCompletionGracePeriod: 0
+        )
+        let bobManager = NoiseSessionManager(
+            localStaticKey: bobKey,
+            keychain: mockKeychain,
+            recentInitiatorCompletionGracePeriod: 0
+        )
         
         try establishManagerSessions(aliceManager: aliceManager, bobManager: bobManager)
         
@@ -377,15 +387,24 @@ struct NoiseProtocolTests {
         let newHandshake1 = try bobManagerRestarted.initiateHandshake(with: bobPeerID)
         
         // Alice should accept the new handshake (clearing old session)
-        let newHandshake2 = try aliceManager.handleIncomingHandshake(
+        let newHandshake2 = try #require(
-            from: alicePeerID, message: newHandshake1)
+            try aliceManager.handleIncomingHandshake(
-        #expect(newHandshake2 != nil)
+                from: alicePeerID,
+                message: newHandshake1
+            )
+        )
         
         // Complete the new handshake
-        let newHandshake3 = try bobManagerRestarted.handleIncomingHandshake(
+        let newHandshake3 = try #require(
-            from: bobPeerID, message: newHandshake2!)
+            try bobManagerRestarted.handleIncomingHandshake(
-        #expect(newHandshake3 != nil)
+                from: bobPeerID,
-        _ = try aliceManager.handleIncomingHandshake(from: alicePeerID, message: newHandshake3!)
+                message: newHandshake2
+            )
+        )
+        _ = try aliceManager.handleIncomingHandshake(
+            from: alicePeerID,
+            message: newHandshake3
+        )
         
         // Should be able to exchange messages with new sessions
         let testMessage = Data("After restart".utf8)
@@ -543,8 +562,18 @@ struct NoiseProtocolTests {
     
     @Test func nonceDesynchronizationCausesRehandshake() throws {
         // Test that nonce desynchronization leads to proper re-handshake
-        let aliceManager = NoiseSessionManager(localStaticKey: aliceKey, keychain: mockKeychain)
+        // This test explicitly drives the three synchronous XX messages and
-        let bobManager = NoiseSessionManager(localStaticKey: bobKey, keychain: mockKeychain)
+        // does not exercise the transport's delayed collision recovery.
+        let aliceManager = NoiseSessionManager(
+            localStaticKey: aliceKey,
+            keychain: mockKeychain,
+            recentInitiatorCompletionGracePeriod: 0
+        )
+        let bobManager = NoiseSessionManager(
+            localStaticKey: bobKey,
+            keychain: mockKeychain,
+            recentInitiatorCompletionGracePeriod: 0
+        )
         
         // Establish sessions
         try establishManagerSessions(aliceManager: aliceManager, bobManager: bobManager)
@@ -572,15 +601,25 @@ struct NoiseProtocolTests {
         let rehandshake1 = try bobManager.initiateHandshake(with: bobPeerID)
         
         // Alice should accept despite having a "valid" (but desynced) session
-        let rehandshake2 = try aliceManager.handleIncomingHandshake(
+        let rehandshake2 = try #require(
-            from: alicePeerID, message: rehandshake1)
+            try aliceManager.handleIncomingHandshake(
-        #expect(rehandshake2 != nil, "Alice should accept handshake to fix desync")
+                from: alicePeerID,
+                message: rehandshake1
+            ),
+            "Alice should accept handshake to fix desync"
+        )
         
         // Complete handshake
-        let rehandshake3 = try bobManager.handleIncomingHandshake(
+        let rehandshake3 = try #require(
-            from: bobPeerID, message: rehandshake2!)
+            try bobManager.handleIncomingHandshake(
-        #expect(rehandshake3 != nil)
+                from: bobPeerID,
-        _ = try aliceManager.handleIncomingHandshake(from: alicePeerID, message: rehandshake3!)
+                message: rehandshake2
+            )
+        )
+        _ = try aliceManager.handleIncomingHandshake(
+            from: alicePeerID,
+            message: rehandshake3
+        )
         
         // Verify communication works again
         let testResynced = Data("Resynced".utf8)

bitchatTests/Services/NoiseEncryptionServiceTests.swift

@@ -723,7 +723,8 @@ struct NoiseEncryptionServiceTests {
                 message: spoofedMessage1
             )
         )
-        try? await Task.sleep(nanoseconds: 35_000_000)
+        // Exercise replacement before yielding: the test runner may resume a
+        // short sleep after the fixed responder deadline under parallel load.
         _ = try #require(
             try bob.processHandshakeMessage(
                 from: alicePeerID,