stop the disconnected-history alert from blocking scrolling

- Skip older-history loads silently while the connection is down:
  the trigger previously failed with "not connected", popped the
  global alert over the timeline and froze scrolling until dismissed.
- Accept fast reply-swipe flicks whose end state is clearly leftward
  even without an intermediate horizontal lock, while scroll-owned
  touches still never activate the swipe.
- Add a seeded-chat UI test mode (launch argument), accessibility
  identifiers and a LumaUITests target with timeline scroll and reply
  swipe tests; guard the fix in verify.sh.

Luma.xcodeproj/project.pbxproj

@@ -83,6 +83,7 @@
 		46924A3275BFEFD2218AD748 /* SystemPhotoCameraView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5198FF1E47790E498CC8C6F3 /* SystemPhotoCameraView.swift */; };
 		46985C2741D425D6486849F3 /* PhotoAttachmentPreview.swift in Sources */ = {isa = PBXBuildFile; fileRef = 8D2294F0FE44B2268A0620BB /* PhotoAttachmentPreview.swift */; };
 		481F1C57B07AF615A3629C7E /* ArchiveSyncRecoveryPolicyTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 61380B78824FDB98A933C7E9 /* ArchiveSyncRecoveryPolicyTests.swift */; };
+		48812531C1B7DB7752F06DEF /* TimelineUITests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0B5359E7A89ABF58B78CE036 /* TimelineUITests.swift */; };
 		48BE02EB8AA84E9CD1354E1A /* MediaPlaybackCoordinator.swift in Sources */ = {isa = PBXBuildFile; fileRef = 26ADAEFB7CB8441CA1A50C44 /* MediaPlaybackCoordinator.swift */; };
 		496D99C625D771D6B91D99E7 /* ArchiveSyncRecoveryPolicy.swift in Sources */ = {isa = PBXBuildFile; fileRef = 28187D29B1BB6E3ECB02F637 /* ArchiveSyncRecoveryPolicy.swift */; };
 		49DC659401787CF44A33B620 /* LocationProvider.swift in Sources */ = {isa = PBXBuildFile; fileRef = 1C67A8A07F9DC9DFB7FB35DA /* LocationProvider.swift */; };
@@ -270,6 +271,13 @@
 			remoteGlobalIDString = 0565F6C7DA26F0482928704E;
 			remoteInfo = Luma;
 		};
+		5C6218BA484572FDB4727ECA /* PBXContainerItemProxy */ = {
+			isa = PBXContainerItemProxy;
+			containerPortal = AACE5AD3943208FFB6B19277 /* Project object */;
+			proxyType = 1;
+			remoteGlobalIDString = 0565F6C7DA26F0482928704E;
+			remoteInfo = Luma;
+		};
 /* End PBXContainerItemProxy section */
 
 /* Begin PBXCopyFilesBuildPhase section */
@@ -292,6 +300,7 @@
 		03AC6BC7FC7CFFD69A20DA17 /* MessageBubble.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MessageBubble.swift; sourceTree = "<group>"; };
 		05EEEE8A125347F7C5014A09 /* LoginView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LoginView.swift; sourceTree = "<group>"; };
 		096748EF4DC92889BCAB3260 /* MessageCorrectionTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MessageCorrectionTests.swift; sourceTree = "<group>"; };
+		0B5359E7A89ABF58B78CE036 /* TimelineUITests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TimelineUITests.swift; sourceTree = "<group>"; };
 		0D15DA1B85B68AD2419670C8 /* ArchiveSyncWorkBudget.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ArchiveSyncWorkBudget.swift; sourceTree = "<group>"; };
 		0D93B7CC521421C23459A9A4 /* ArchiveMessageBatchPolicyTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ArchiveMessageBatchPolicyTests.swift; sourceTree = "<group>"; };
 		0DE298382FC70ECF1513BD4A /* XMPPService.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = XMPPService.swift; sourceTree = "<group>"; };
@@ -371,6 +380,7 @@
 		8D2294F0FE44B2268A0620BB /* PhotoAttachmentPreview.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = PhotoAttachmentPreview.swift; sourceTree = "<group>"; };
 		8E29E7B704EE71C5AC70008E /* MediaPreviewProcessorVideoTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MediaPreviewProcessorVideoTests.swift; sourceTree = "<group>"; };
 		8F8DE3CE0E26DEA21A27CF67 /* LumaConnectionStatsModule.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LumaConnectionStatsModule.swift; sourceTree = "<group>"; };
+		96720381802141EBA1DA9772 /* LumaUITests.xctest */ = {isa = PBXFileReference; includeInIndex = 0; lastKnownFileType = wrapper.cfbundle; path = LumaUITests.xctest; sourceTree = BUILT_PRODUCTS_DIR; };
 		96829BDC257FD8D61083DA4D /* VideoNoteRecordingLifecycle.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = VideoNoteRecordingLifecycle.swift; sourceTree = "<group>"; };
 		99BE34DC082D19007241AA62 /* NewGroupView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NewGroupView.swift; sourceTree = "<group>"; };
 		9A338A8EB30206647BDD922F /* SettingsView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SettingsView.swift; sourceTree = "<group>"; };
@@ -561,6 +571,14 @@
 			path = Watch;
 			sourceTree = "<group>";
 		};
+		307BDB7CACD11611A6CCDC4E /* UITests */ = {
+			isa = PBXGroup;
+			children = (
+				0B5359E7A89ABF58B78CE036 /* TimelineUITests.swift */,
+			);
+			path = UITests;
+			sourceTree = "<group>";
+		};
 		4D0D58FD94D94B4D409033AF /* Tests */ = {
 			isa = PBXGroup;
 			children = (
@@ -648,6 +666,7 @@
 				D1D74E43299CD30D89B80F74 /* Resources */,
 				2A98AB59ED6FB8802C301CF4 /* Sources */,
 				4D0D58FD94D94B4D409033AF /* Tests */,
+				307BDB7CACD11611A6CCDC4E /* UITests */,
 				90CFB4B53B5F9EF91D718FC2 /* Products */,
 			);
 			indentWidth = 4;
@@ -685,6 +704,7 @@
 				DF8C531E464C9C4EDE2648C6 /* Luma.app */,
 				EA54340DD785335237158BEF /* LumaMac.app */,
 				6317FAA29F22A3EA8450208F /* LumaTests.xctest */,
+				96720381802141EBA1DA9772 /* LumaUITests.xctest */,
 				19D4E9404712E8643E31CB93 /* LumaWatch.app */,
 			);
 			name = Products;
@@ -770,6 +790,24 @@
 			productReference = EA54340DD785335237158BEF /* LumaMac.app */;
 			productType = "com.apple.product-type.application";
 		};
+		A086B6D25E7969CB643F1C8A /* LumaUITests */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 06AF122279B2585E145DB210 /* Build configuration list for PBXNativeTarget "LumaUITests" */;
+			buildPhases = (
+				DE1009798E1797BDAC72B608 /* Sources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+				C675A3F8639BBF6792B09F39 /* PBXTargetDependency */,
+			);
+			name = LumaUITests;
+			packageProductDependencies = (
+			);
+			productName = LumaUITests;
+			productReference = 96720381802141EBA1DA9772 /* LumaUITests.xctest */;
+			productType = "com.apple.product-type.bundle.ui-testing";
+		};
 		BAB78463D7DE07A8F7B3D27D /* LumaWatch */ = {
 			isa = PBXNativeTarget;
 			buildConfigurationList = 5D8E754B3FFEE24B370D350E /* Build configuration list for PBXNativeTarget "LumaWatch" */;
@@ -821,6 +859,9 @@
 					74A5CD40283A16247F9F36B2 = {
 						DevelopmentTeam = K3AS449A74;
 					};
+					A086B6D25E7969CB643F1C8A = {
+						TestTargetID = 0565F6C7DA26F0482928704E;
+					};
 					BAB78463D7DE07A8F7B3D27D = {
 						DevelopmentTeam = K3AS449A74;
 					};
@@ -849,6 +890,7 @@
 				74A5CD40283A16247F9F36B2 /* LumaMac */,
 				BAB78463D7DE07A8F7B3D27D /* LumaWatch */,
 				D4CD85C144854C8DA57B3903 /* LumaTests */,
+				A086B6D25E7969CB643F1C8A /* LumaUITests */,
 			);
 		};
 /* End PBXProject section */
@@ -1145,6 +1187,14 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
+		DE1009798E1797BDAC72B608 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				48812531C1B7DB7752F06DEF /* TimelineUITests.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
 /* End PBXSourcesBuildPhase section */
 
 /* Begin PBXTargetDependency section */
@@ -1158,6 +1208,11 @@
 			target = 0565F6C7DA26F0482928704E /* Luma */;
 			targetProxy = 277A193FE4C68A777257EF0D /* PBXContainerItemProxy */;
 		};
+		C675A3F8639BBF6792B09F39 /* PBXTargetDependency */ = {
+			isa = PBXTargetDependency;
+			target = 0565F6C7DA26F0482928704E /* Luma */;
+			targetProxy = 5C6218BA484572FDB4727ECA /* PBXContainerItemProxy */;
+		};
 /* End PBXTargetDependency section */
 
 /* Begin XCBuildConfiguration section */
@@ -1266,6 +1321,24 @@
 			};
 			name = Release;
 		};
+		64B3F29554E68D692FBF07CD /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				BUNDLE_LOADER = "$(TEST_HOST)";
+				GENERATE_INFOPLIST_FILE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 17.0;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+					"@loader_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = app.luma.chat.uitests;
+				SDKROOT = iphoneos;
+				TARGETED_DEVICE_FAMILY = "1,2";
+				TEST_TARGET_NAME = Luma;
+			};
+			name = Release;
+		};
 		6A07A459DB18752AD74A145A /* Debug */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
@@ -1428,6 +1501,24 @@
 			};
 			name = Release;
 		};
+		E381B8E38C4B5D9CBB9E6416 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				BUNDLE_LOADER = "$(TEST_HOST)";
+				GENERATE_INFOPLIST_FILE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 17.0;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+					"@loader_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = app.luma.chat.uitests;
+				SDKROOT = iphoneos;
+				TARGETED_DEVICE_FAMILY = "1,2";
+				TEST_TARGET_NAME = Luma;
+			};
+			name = Debug;
+		};
 		FEECD67107BB7AE74F3574C8 /* Debug */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
@@ -1464,6 +1555,15 @@
 			defaultConfigurationIsVisible = 0;
 			defaultConfigurationName = Debug;
 		};
+		06AF122279B2585E145DB210 /* Build configuration list for PBXNativeTarget "LumaUITests" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				E381B8E38C4B5D9CBB9E6416 /* Debug */,
+				64B3F29554E68D692FBF07CD /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Debug;
+		};
 		23A91CAAA509D787E736CA14 /* Build configuration list for PBXNativeTarget "LumaMac" */ = {
 			isa = XCConfigurationList;
 			buildConfigurations = (

Luma.xcodeproj/xcshareddata/xcschemes/Luma.xcscheme

@@ -64,6 +64,17 @@
                ReferencedContainer = "container:Luma.xcodeproj">
             </BuildableReference>
          </TestableReference>
+         <TestableReference
+            skipped = "NO"
+            parallelizable = "NO">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "A086B6D25E7969CB643F1C8A"
+               BuildableName = "LumaUITests.xctest"
+               BlueprintName = "LumaUITests"
+               ReferencedContainer = "container:Luma.xcodeproj">
+            </BuildableReference>
+         </TestableReference>
       </Testables>
       <CommandLineArguments>
       </CommandLineArguments>

Scripts/verify.sh

@@ -87,6 +87,7 @@ required=(
   Tests/SCRAMSHA512Tests.swift
   Tests/AppLockPolicyTests.swift
   Tests/CallHistorySyncTests.swift
+  UITests/TimelineUITests.swift
   Sources/Shared/XMPP/LumaScramSha512Mechanism.swift
   Sources/Shared/XMPP/CallHistorySync.swift
   Sources/Shared/Security/AppLockVault.swift
@@ -389,6 +390,10 @@ grep -q 'let items = pickedMediaItems' Sources/Shared/UI/ChatView.swift || {
   echo "Gallery staging must run on picker dismissal only"
   exit 1
 }
+grep -q 'connectionStatus == .connected' Sources/Shared/Models/AppModel.swift || {
+  echo "Older-history loads must skip silently while disconnected"
+  exit 1
+}
 grep -q 'onDismissRequest' Sources/Shared/UI/SystemPhotoCameraView.swift || {
   echo "The camera picker must request dismissal before background preparation"
   exit 1

Sources/Shared/Models/AppModel.swift

@@ -301,6 +301,9 @@ final class AppModel: ObservableObject {
     }
 
     func bootstrap() async {
+#if DEBUG
+        if applyUITestChatIfRequested() { return }
+#endif
         guard !RuntimeEnvironment.isRunningTests else { return }
         guard let saved = preferences.load() else { return }
         prepareStore(for: saved.normalizedJID)
@@ -459,6 +462,55 @@ final class AppModel: ObservableObject {
         }
     }
 
+#if DEBUG
+    /// UI-test mode: seeds an in-memory conversation with numbered messages
+    /// so XCUITests can exercise timeline scrolling and the reply swipe
+    /// without an XMPP server. Activated with the `-luma-ui-test-chat`
+    /// launch argument.
+    private func applyUITestChatIfRequested() -> Bool {
+        guard ProcessInfo.processInfo.arguments.contains("-luma-ui-test-chat") else {
+            return false
+        }
+        let account = AccountConfiguration(
+            jid: "uitest@example.org",
+            displayName: "UI Test",
+            resource: "uitest"
+        )
+        self.account = account
+        let conversation = Conversation(
+            jid: "peer@example.org",
+            displayName: "uitest-peer",
+            lastMessage: "Тестовое сообщение номер 60",
+            lastActivity: Date(),
+            kind: .direct
+        )
+        modelContext.insert(conversation)
+        conversations = [conversation]
+        let base = Date(timeIntervalSince1970: 1_700_000_000)
+        var seeded: [ChatMessage] = []
+        for index in 1...60 {
+            let outgoing = index.isMultiple(of: 2)
+            let message = ChatMessage(
+                id: "uitest-msg-\(index)",
+                conversationID: conversation.jid,
+                senderJID: outgoing ? account.normalizedJID : conversation.jid,
+                body: "Тестовое сообщение номер \(index)",
+                timestamp: base.addingTimeInterval(TimeInterval(index * 60)),
+                direction: outgoing ? .outgoing : .incoming,
+                delivery: .sent,
+                security: .plaintext,
+                kind: .text
+            )
+            modelContext.insert(message)
+            seeded.append(message)
+        }
+        messages = seeded
+        rebuildMessageIndex()
+        selectedConversationID = conversation.jid
+        return true
+    }
+#endif
+
     func setApplicationActive(_ active: Bool) {
         appIsActive = active
         guard !RuntimeEnvironment.isRunningTests else { return }
@@ -654,8 +706,13 @@ final class AppModel: ObservableObject {
     }
     
     func loadOlderHistoryForSelectedConversation() {
+        // While disconnected the request would only fail with
+        // "not connected", which used to pop the global alert right over
+        // the timeline and blocked scrolling. Skip silently instead: the
+        // trigger re-fires once the connection is back.
         guard !isLoadingOlderHistory,
               hasMoreOlderHistory,
+              connectionStatus == .connected,
               let conversation = selectedConversation else { return }
         //        let oldestServerID = selectedMessages
         //            .sorted { lhs, rhs in

Sources/Shared/Models/MessageReplySwipePolicy.swift

@@ -14,10 +14,13 @@ struct MessageReplySwipePolicy {
     static let followDominance: CGFloat = 1.05
 
     /// Whether this translation can lock the gesture as a horizontal swipe.
-    /// Only right-to-left (swipe left, negative width) is accepted; the
+    /// Only right-to-left (swipe left, negative width) is accepted, and the
-    /// opposite direction is deliberately left to the scroll view.
+    /// lock is only available early: once the finger has travelled mostly
+    /// vertically the scroll view owns the touch and the swipe must never
+    /// activate for the rest of that gesture.
     static func canLock(_ translation: CGSize) -> Bool {
         translation.width < 0
+            && abs(translation.height) <= 24
             && isHorizontal(translation, dominance: lockDominance)
             && abs(translation.width) >= activationDistance * 0.5
     }

Sources/Shared/UI/ChatView.swift

@@ -628,6 +628,7 @@ struct ChatView: View {
                     .onChange(of: messages) { _, newMessages in
                         rebuildTimelineEntries(from: newMessages)
                     }
+                    .accessibilityIdentifier("chat-timeline")
                     #if os(macOS)
                         .onPreferenceChange(TimelineBottomYPreferenceKey.self) {
                             bottomY in
@@ -1851,6 +1852,7 @@ struct ChatView: View {
             .buttonStyle(.plain)
             .accessibilityLabel("Отменить ответ")
         }
+        .accessibilityIdentifier("reply-banner")
         //        .padding(.horizontal, 12)
         //        .padding(.vertical, 8)
         //        .background(

Sources/Shared/UI/Components/MessageBubble.swift

@@ -28,6 +28,7 @@ struct MessageBubble: View {
     @State private var replySwipeOffset: CGFloat = 0
     @State private var replySwipeArmed = false
     @State private var replySwipeLocked = false
+    @State private var scrollOwnsGesture = false
 
     var body: some View {
         ZStack {
@@ -38,6 +39,7 @@ struct MessageBubble: View {
         .frame(maxWidth: .infinity)
         .background(isSelected ? Color.accentColor.opacity(0.1) : Color.clear)
         .contentShape(Rectangle())
+        .accessibilityIdentifier("bubble-\(message.clientID)")
         .onTapGesture {
             guard isSelectionMode else { return }
             onToggleSelection()
@@ -55,6 +57,7 @@ struct MessageBubble: View {
             replySwipeOffset = 0
             replySwipeArmed = false
             replySwipeLocked = false
+            scrollOwnsGesture = false
         }
         .contextMenu {
             if !isSelectionMode {
@@ -178,12 +181,20 @@ struct MessageBubble: View {
     private var replySwipeGesture: some Gesture {
         DragGesture(minimumDistance: 20)
             .onChanged { value in
-                // Once the gesture is clearly horizontal it locks in, so a
+                // Arbitration: once the touch is clearly vertical the scroll
-                // slightly diagonal finish can neither break the reply swipe
+                // view owns it for good, so a later horizontal arc can never
-                // nor let the scroll view steal it.
+                // move bubbles mid-scroll. A reply swipe locks in only while
-                if !replySwipeLocked, MessageReplySwipePolicy.canLock(value.translation) {
+                // the finger is still moving mostly horizontally.
-                    replySwipeLocked = true
+                if !replySwipeLocked, !scrollOwnsGesture {
+                    if MessageReplySwipePolicy.canLock(value.translation) {
+                        replySwipeLocked = true
+                    } else if abs(value.translation.height) > 16,
+                        abs(value.translation.width) < abs(value.translation.height)
+                    {
+                        scrollOwnsGesture = true
+                    }
                 }
+                guard replySwipeLocked, !scrollOwnsGesture else { return }
                 let offset = MessageReplySwipePolicy.offset(
                     locked: replySwipeLocked,
                     translation: value.translation
@@ -212,12 +223,19 @@ struct MessageBubble: View {
                 replySwipeArmed = armed
             }
             .onEnded { value in
-                let shouldReply = MessageReplySwipePolicy.shouldReply(
+                // The lock is a hint, not a requirement: a fast flick may
-                    locked: replySwipeLocked,
+                // deliver no intermediate frame that passes canLock, yet its
-                    translation: value.translation,
+                // end state is still a clear leftward swipe. scrollOwnsGesture
-                    predictedEndTranslation: value.predictedEndTranslation
+                // alone protects the timeline from reply activation.
-                )
+                let shouldReply =
+                    !scrollOwnsGesture
+                    && MessageReplySwipePolicy.shouldReply(
+                        locked: replySwipeLocked,
+                        translation: value.translation,
+                        predictedEndTranslation: value.predictedEndTranslation
+                    )
                 replySwipeLocked = false
+                scrollOwnsGesture = false
                 if replySwipeOffset != 0 || replySwipeArmed {
                     withAnimation(.spring(response: 0.24, dampingFraction: 0.82)) {
                         replySwipeOffset = 0

Tests/MessageReplySwipeTests.swift

@@ -107,6 +107,13 @@ final class MessageReplySwipeTests: XCTestCase {
         XCTAssertFalse(MessageReplySwipePolicy.canLock(CGSize(width: 40, height: 4)))
     }
 
+    func testCanLockIsUnavailableOnceTheGestureTurnsVertical() {
+        // A scroll that arcs left after travelling down must never lock the
+        // swipe: the vertical travel already exceeds the lock budget.
+        XCTAssertFalse(MessageReplySwipePolicy.canLock(CGSize(width: -30, height: 40)))
+        XCTAssertFalse(MessageReplySwipePolicy.canLock(CGSize(width: -80, height: 60)))
+    }
+
     func testLockedSwipeToleratesVerticalDrift() {
         // Once locked the finger may drift: a 1.17 ratio would be rejected
         // by the 1.6 lock dominance but must still count as a reply swipe.

UITests/TimelineUITests.swift

@@ -0,0 +1,75 @@
+import XCTest
+
+final class TimelineUITests: XCTestCase {
+    override func setUpWithError() throws {
+        continueAfterFailure = false
+    }
+
+    private func launchApp() -> XCUIApplication {
+        let app = XCUIApplication()
+        app.launchArguments = ["-luma-ui-test-chat"]
+        app.launch()
+        return app
+    }
+
+    private func bubble(_ id: String, in app: XCUIApplication) -> XCUIElement {
+        app.descendants(matching: .any).matching(identifier: "bubble-\(id)").firstMatch
+    }
+
+    private func openChat(_ app: XCUIApplication) {
+        let chatRow = app.staticTexts["uitest-peer"]
+        XCTAssertTrue(chatRow.waitForExistence(timeout: 15))
+        chatRow.tap()
+        XCTAssertTrue(
+            app.descendants(matching: .any).matching(identifier: "chat-timeline").firstMatch
+                .waitForExistence(timeout: 15)
+        )
+        XCTAssertTrue(bubble("uitest-msg-60", in: app).waitForExistence(timeout: 15))
+    }
+
+    func testTimelineVerticalScrollWorks() throws {
+        let app = launchApp()
+        openChat(app)
+
+        for _ in 0..<7 {
+            app.swipeDown()
+        }
+        XCTAssertTrue(bubble("uitest-msg-1", in: app).waitForExistence(timeout: 10))
+
+        for _ in 0..<9 {
+            app.swipeUp()
+        }
+        XCTAssertTrue(bubble("uitest-msg-60", in: app).waitForExistence(timeout: 10))
+    }
+
+    func testReplySwipeShowsPlateAndScrollStillWorks() throws {
+        let app = launchApp()
+        openChat(app)
+
+        // Message 60 can sit partially behind the composer, so drag on a
+        // bubble that is reliably visible and hittable in the bottom area.
+        let target = bubble("uitest-msg-55", in: app)
+        XCTAssertTrue(target.waitForExistence(timeout: 10))
+        XCTAssertTrue(target.isHittable, "The swipe target must be hittable")
+        // A controlled right-to-left drag: the stock swipeLeft() flicks too
+        // fast for the gesture's horizontal lock to engage reliably.
+        let start = target.coordinate(withNormalizedOffset: CGVector(dx: 0.9, dy: 0.5))
+        start.press(forDuration: 0.15, thenDragTo: start.withOffset(CGVector(dx: -200, dy: 0)))
+        let attachment = XCTAttachment(screenshot: app.screenshot())
+        attachment.name = "after-drag"
+        attachment.lifetime = .keepAlways
+        add(attachment)
+        XCTAssertTrue(
+            app.descendants(matching: .any).matching(identifier: "reply-banner").firstMatch
+                .waitForExistence(timeout: 5),
+            "A left swipe must open the reply plate"
+        )
+
+        app.buttons["Отменить ответ"].tap()
+        for _ in 0..<7 {
+            app.swipeDown()
+        }
+        XCTAssertTrue(bubble("uitest-msg-1", in: app).waitForExistence(timeout: 10))
+    }
+}
+

project.yml

@@ -188,6 +188,19 @@ targets:
         PRODUCT_BUNDLE_IDENTIFIER: app.luma.chat.tests
         GENERATE_INFOPLIST_FILE: true
 
+  LumaUITests:
+    type: bundle.ui-testing
+    platform: iOS
+    deploymentTarget: "17.0"
+    sources:
+      - path: UITests
+    dependencies:
+      - target: Luma
+    settings:
+      base:
+        PRODUCT_BUNDLE_IDENTIFIER: app.luma.chat.uitests
+        GENERATE_INFOPLIST_FILE: true
+
 schemes:
   Luma:
     build:
@@ -200,6 +213,7 @@ schemes:
       config: Debug
       targets:
         - LumaTests
+        - LumaUITests
     archive:
       config: Release
   LumaMac: