[CI][v5] Implement new cross-platform mock server

.github/workflows/cron-checks.yml

@@ -30,9 +30,9 @@ jobs:
           - ios: "17.5"
             device: "iPhone 15 Pro"
             setup_runtime: true
-          - ios: "16.4"
-            device: "iPhone 14 Pro"
-            setup_runtime: true
+          # - ios: "16.4" # XCTest runner hangs most of the time on iOS 16
+          #   device: "iPhone 14 Pro"
+          #   setup_runtime: true
       fail-fast: false
     runs-on: macos-15
     env:
@@ -79,8 +79,7 @@ jobs:
         name: Test Data E2E (iOS ${{ matrix.ios }})
         path: |
           fastlane/recordings
-          fastlane/sinatra_log.txt
-          fastlane/test_output/report.junit
+          fastlane/stream-chat-test-mock-server/logs/*
           fastlane/test_output/logs/*/Diagnostics/**/*.txt
           fastlane/test_output/logs/*/Diagnostics/simctl_diagnostics/DiagnosticReports/*
 

.github/workflows/smoke-checks.yml

@@ -118,8 +118,6 @@ jobs:
       with:
         name: Test Data UI
         path: |
-          fastlane/recordings
-          fastlane/sinatra_log.txt
           fastlane/test_output/snapshots
           fastlane/test_output/logs/*/Diagnostics/**/*.txt
           fastlane/test_output/logs/*/Diagnostics/simctl_diagnostics/DiagnosticReports/*
@@ -199,8 +197,7 @@ jobs:
         name: Test Data E2E ${{ matrix.batch }}
         path: |
           fastlane/recordings
-          fastlane/sinatra_log.txt
-          fastlane/test_output/report.junit
+          fastlane/stream-chat-test-mock-server/logs/*
           fastlane/test_output/logs/*/Diagnostics/**/*.txt
           fastlane/test_output/logs/*/Diagnostics/simctl_diagnostics/DiagnosticReports/*
 

.gitignore

@@ -93,6 +93,7 @@ app-thinning.plist
 *.dmg
 yeetd-normal.pkg
 *LinkMap.txt
+stream-chat-test-mock-server
 
 # VSCode
 .vscode

Gemfile

@@ -21,6 +21,8 @@ group :fastlane_dependencies do
 end
 
 group :sinatra_dependencies do
+  gem 'eventmachine'
+  gem 'faye-websocket'
   gem 'puma'
   gem 'rackup'
 end

Gemfile.lock

@@ -85,6 +85,7 @@ GEM
     dotenv (2.8.1)
     drb (2.2.3)
     emoji_regex (3.2.3)
+    eventmachine (1.2.7)
     excon (0.112.0)
     faraday (1.10.4)
       faraday-em_http (~> 1.0)
@@ -172,6 +173,9 @@ GEM
       xcsize (= 1.2.0)
     fastlane-sirp (1.0.0)
       sysrandom (~> 1.0)
+    faye-websocket (0.12.0)
+      eventmachine (>= 0.12.0)
+      websocket-driver (>= 0.8.0)
     gh_inspector (1.1.3)
     git (2.3.3)
       activesupport (>= 5.0)
@@ -352,6 +356,10 @@ GEM
       concurrent-ruby (~> 1.0)
     uber (0.1.0)
     unicode-display_width (2.6.0)
+    websocket-driver (0.8.0)
+      base64
+      websocket-extensions (>= 0.1.0)
+    websocket-extensions (0.1.5)
     word_wrap (1.0.0)
     xcodeproj (1.27.0)
       CFPropertyList (>= 2.3.3, < 4.0)
@@ -374,13 +382,15 @@ PLATFORMS
 DEPENDENCIES
   danger
   danger-commit_lint
+  eventmachine
   fastlane
   fastlane-plugin-create_xcframework
   fastlane-plugin-lizard
   fastlane-plugin-sonarcloud_metric_kit
   fastlane-plugin-stream_actions (= 0.3.102)
   fastlane-plugin-versioning
   fastlane-plugin-xcsize (= 1.2.0)
+  faye-websocket
   json
   lefthook
   plist

Sources/StreamChatSwiftUI/ChatChannel/ChatChannelView.swift

@@ -1,5 +1,5 @@
 //
-// Copyright © 2025 Stream.io Inc. All rights reserved.
+// Copyright © 2026 Stream.io Inc. All rights reserved.
 //
 
 import StreamChat
@@ -124,9 +124,8 @@ public struct ChatChannelView<Factory: ViewFactory>: View, KeyboardReadable {
                             messageController: viewModel.messageController,
                             quotedMessage: $viewModel.quotedMessage,
                             editedMessage: $viewModel.editedMessage,
-                            onMessageSent: {
-                                viewModel.messageSentTapped()
-                            }
+                            willSendMessage: { viewModel.messageSentTapped() },
+                            onMessageSent: {}
                         )
                     )
                     .opacity((

Sources/StreamChatSwiftUI/ChatChannel/Composer/MessageComposerView.swift

@@ -1,5 +1,5 @@
 //
-// Copyright © 2025 Stream.io Inc. All rights reserved.
+// Copyright © 2026 Stream.io Inc. All rights reserved.
 //
 
 import StreamChat
@@ -31,6 +31,7 @@ public struct MessageComposerView<Factory: ViewFactory>: View, KeyboardReadable
         messageController: ChatMessageController? = nil,
         quotedMessage: Binding<ChatMessage?>,
         editedMessage: Binding<ChatMessage?>,
+        willSendMessage: @escaping () -> Void,
         onMessageSent: @escaping () -> Void
     ) {
         factory = viewFactory
@@ -45,10 +46,12 @@ public struct MessageComposerView<Factory: ViewFactory>: View, KeyboardReadable
         _quotedMessage = quotedMessage
         _editedMessage = editedMessage
         self.onMessageSent = onMessageSent
+        self.willSendMessage = willSendMessage
     }
 
     @StateObject var viewModel: MessageComposerViewModel
 
+    var willSendMessage: () -> Void
     var onMessageSent: () -> Void
 
     public var body: some View {
@@ -108,6 +111,7 @@ public struct MessageComposerView<Factory: ViewFactory>: View, KeyboardReadable
                         enabled: viewModel.sendButtonEnabled,
                         cooldownDuration: viewModel.cooldownDuration,
                         onTap: {
+                            willSendMessage()
                             viewModel.sendMessage(
                                 quotedMessage: quotedMessage,
                                 editedMessage: editedMessage

Sources/StreamChatSwiftUI/ChatChannel/MessageList/QuotedMessageView.swift

@@ -247,7 +247,8 @@ public struct QuotedMessageContentView<Factory: ViewFactory>: View {
                     }
                     .onDisappear(.cancel)
                     .processors([ImageProcessors.Resize(width: options.attachmentSize.width)])
-                    .priority(.high)                }
+                    .priority(.high)
+                }
             }
             .frame(width: hasVoiceAttachments ? nil : options.attachmentSize.width, height: options.attachmentSize.height)
             .aspectRatio(1, contentMode: .fill)

Sources/StreamChatSwiftUI/ViewFactory/DefaultViewFactory.swift

@@ -1,5 +1,5 @@
 //
-// Copyright © 2025 Stream.io Inc. All rights reserved.
+// Copyright © 2026 Stream.io Inc. All rights reserved.
 //
 
 import Photos
@@ -529,6 +529,7 @@ extension ViewFactory {
             messageController: options.messageController,
             quotedMessage: options.quotedMessage,
             editedMessage: options.editedMessage,
+            willSendMessage: options.willSendMessage,
             onMessageSent: options.onMessageSent
         )
     }
@@ -835,13 +836,13 @@ extension ViewFactory {
     }
 
     public func makeQuotedMessageContentView(
-            options: QuotedMessageContentViewOptions
-        ) -> some View {
-            QuotedMessageContentView(
-                factory: self,
-                options: options
-            )
-        }
+        options: QuotedMessageContentViewOptions
+    ) -> some View {
+        QuotedMessageContentView(
+            factory: self,
+            options: options
+        )
+    }
 
     public func makeCustomAttachmentQuotedView(options: CustomAttachmentQuotedViewOptions) -> some View {
         EmptyView()

Sources/StreamChatSwiftUI/ViewFactory/Options/ComposerViewFactoryOptions.swift

@@ -1,5 +1,5 @@
 //
-// Copyright © 2025 Stream.io Inc. All rights reserved.
+// Copyright © 2026 Stream.io Inc. All rights reserved.
 //
 
 import Foundation
@@ -18,6 +18,8 @@ public final class MessageComposerViewTypeOptions: Sendable {
     public let quotedMessage: Binding<ChatMessage?>
     /// Binding to the edited message.
     public let editedMessage: Binding<ChatMessage?>
+    /// A closure triggered just before sending a new message.
+    public let willSendMessage: @MainActor () -> Void
     /// Callback when a message is sent.
     public let onMessageSent: @MainActor () -> Void
 
@@ -26,13 +28,15 @@ public final class MessageComposerViewTypeOptions: Sendable {
         messageController: ChatMessageController?,
         quotedMessage: Binding<ChatMessage?>,
         editedMessage: Binding<ChatMessage?>,
+        willSendMessage: @escaping @MainActor () -> Void,
         onMessageSent: @escaping @MainActor () -> Void
     ) {
         self.channelController = channelController
         self.messageController = messageController
         self.quotedMessage = quotedMessage
         self.editedMessage = editedMessage
         self.onMessageSent = onMessageSent
+        self.willSendMessage = willSendMessage
     }
 }
 

StreamChatSwiftUI.xcodeproj/project.pbxproj

@@ -108,7 +108,6 @@
 		820A61A029D6D78E002257FB /* QuotedReply_Tests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 820A619F29D6D78E002257FB /* QuotedReply_Tests.swift */; };
 		825AADF4283CCDB000237498 /* ThreadPage.swift in Sources */ = {isa = PBXBuildFile; fileRef = 825AADF3283CCDB000237498 /* ThreadPage.swift */; };
 		827352FD290BE91100A87385 /* NotificationsHandler.swift in Sources */ = {isa = PBXBuildFile; fileRef = 8492974827ABDDBF00A8EEB0 /* NotificationsHandler.swift */; };
-		829AB4D228578ACF002DC629 /* StreamTestCase+Tags.swift in Sources */ = {isa = PBXBuildFile; fileRef = 829AB4D128578ACF002DC629 /* StreamTestCase+Tags.swift */; };
 		829AB4D42858A532002DC629 /* Reactions_Tests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 829AB4D32858A532002DC629 /* Reactions_Tests.swift */; };
 		829CD5CE2848CA6B003C3877 /* Settings.swift in Sources */ = {isa = PBXBuildFile; fileRef = 829CD5CD2848CA6B003C3877 /* Settings.swift */; };
 		829EF8772A9362C00045D166 /* PrivacyInfo.xcprivacy in Resources */ = {isa = PBXBuildFile; fileRef = 829EF8762A9362C00045D166 /* PrivacyInfo.xcprivacy */; };
@@ -697,7 +696,6 @@
 		4FEAB3172BFF71F70057E511 /* SwiftUI+UIAlertController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "SwiftUI+UIAlertController.swift"; sourceTree = "<group>"; };
 		820A619F29D6D78E002257FB /* QuotedReply_Tests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = QuotedReply_Tests.swift; sourceTree = "<group>"; };
 		825AADF3283CCDB000237498 /* ThreadPage.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ThreadPage.swift; sourceTree = "<group>"; };
-		829AB4D128578ACF002DC629 /* StreamTestCase+Tags.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "StreamTestCase+Tags.swift"; sourceTree = "<group>"; };
 		829AB4D32858A532002DC629 /* Reactions_Tests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Reactions_Tests.swift; sourceTree = "<group>"; };
 		829CD5CD2848CA6B003C3877 /* Settings.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Settings.swift; sourceTree = "<group>"; };
 		829EF8762A9362C00045D166 /* PrivacyInfo.xcprivacy */ = {isa = PBXFileReference; lastKnownFileType = text.xml; path = PrivacyInfo.xcprivacy; sourceTree = "<group>"; };
@@ -2240,13 +2238,12 @@
 			isa = PBXGroup;
 			children = (
 				A3600B3F283F651200E1C930 /* Base TestCase */,
+				82A1814528FD69E8005F9D43 /* Message Delivery Status */,
 				82A1813D28FD68A3005F9D43 /* ChannelList_Tests.swift */,
 				A3600B31283E9E4700E1C930 /* MessageList_Tests.swift */,
 				829AB4D32858A532002DC629 /* Reactions_Tests.swift */,
 				82A1813B28F9BA53005F9D43 /* Attachments_Tests.swift */,
 				82A1814328FD69AE005F9D43 /* SlowMode_Tests.swift */,
-				829AB4D128578ACF002DC629 /* StreamTestCase+Tags.swift */,
-				82A1814528FD69E8005F9D43 /* Message Delivery Status */,
 				82A1813F28FD691B005F9D43 /* Ephemeral_Messages_Tests.swift */,
 				82A1814128FD694A005F9D43 /* PushNotification_Tests.swift */,
 				820A619F29D6D78E002257FB /* QuotedReply_Tests.swift */,
@@ -2587,7 +2584,6 @@
 				82A1814728FD69F8005F9D43 /* MessageDeliveryStatus_Tests.swift in Sources */,
 				A3600B2F283E9E1900E1C930 /* UserRobot+Asserts.swift in Sources */,
 				82A1814028FD691B005F9D43 /* Ephemeral_Messages_Tests.swift in Sources */,
-				829AB4D228578ACF002DC629 /* StreamTestCase+Tags.swift in Sources */,
 				82A1813C28F9BA53005F9D43 /* Attachments_Tests.swift in Sources */,
 				A3600B35283E9EBA00E1C930 /* Bundle+Target.swift in Sources */,
 				82A1813A28F84CAA005F9D43 /* SpringBoard.swift in Sources */,

StreamChatSwiftUITests/Tests/ChatChannel/MessageComposerView_Tests.swift

@@ -1,5 +1,5 @@
 //
-// Copyright © 2025 Stream.io Inc. All rights reserved.
+// Copyright © 2026 Stream.io Inc. All rights reserved.
 //
 
 import Photos
@@ -39,6 +39,7 @@ import XCTest
             messageController: nil,
             quotedMessage: .constant(nil),
             editedMessage: .constant(nil),
+            willSendMessage: {},
             onMessageSent: {}
         )
         .frame(width: defaultScreenSize.width, height: 100)
@@ -62,6 +63,7 @@ import XCTest
             messageController: nil,
             quotedMessage: .constant(nil),
             editedMessage: .constant(nil),
+            willSendMessage: {},
             onMessageSent: {}
         )
         .frame(width: defaultScreenSize.width, height: 250)
@@ -85,6 +87,7 @@ import XCTest
             messageController: nil,
             quotedMessage: .constant(nil),
             editedMessage: .constant(nil),
+            willSendMessage: {},
             onMessageSent: {}
         )
         .frame(width: defaultScreenSize.width, height: 120)
@@ -108,6 +111,7 @@ import XCTest
             messageController: nil,
             quotedMessage: .constant(nil),
             editedMessage: .constant(nil),
+            willSendMessage: {},
             onMessageSent: {}
         )
         .frame(width: defaultScreenSize.width, height: 120)
@@ -131,6 +135,7 @@ import XCTest
             messageController: nil,
             quotedMessage: .constant(nil),
             editedMessage: .constant(nil),
+            willSendMessage: {},
             onMessageSent: {}
         )
         .frame(width: defaultScreenSize.width, height: 200)
@@ -256,6 +261,7 @@ import XCTest
             messageController: nil,
             quotedMessage: .constant(nil),
             editedMessage: .constant(nil),
+            willSendMessage: {},
             onMessageSent: {}
         )
         .frame(width: defaultScreenSize.width, height: 100)
@@ -688,6 +694,7 @@ import XCTest
             channelController: channelController,
             quotedMessage: .constant(nil),
             editedMessage: .constant(nil),
+            willSendMessage: {},
             onMessageSent: {}
         )
     }
@@ -895,6 +902,7 @@ import XCTest
             channelController: channelController,
             quotedMessage: .constant(nil),
             editedMessage: .constant(editedMessage),
+            willSendMessage: {},
             onMessageSent: {}
         )
     }
@@ -928,6 +936,7 @@ import XCTest
             messageController: nil,
             quotedMessage: .constant(nil),
             editedMessage: .constant(nil),
+            willSendMessage: {},
             onMessageSent: {}
         )
         view.addToViewHierarchy()
@@ -970,6 +979,7 @@ import XCTest
             messageController: nil,
             quotedMessage: .constant(nil),
             editedMessage: .constant(nil),
+            willSendMessage: {},
             onMessageSent: {}
         )
         view.addToViewHierarchy()
@@ -1008,6 +1018,7 @@ import XCTest
             messageController: nil,
             quotedMessage: .constant(nil),
             editedMessage: .constant(nil),
+            willSendMessage: {},
             onMessageSent: {}
         )
         view.addToViewHierarchy()
@@ -1045,6 +1056,7 @@ import XCTest
             messageController: nil,
             quotedMessage: .constant(nil),
             editedMessage: .constant(nil),
+            willSendMessage: {},
             onMessageSent: {}
         )
         view.addToViewHierarchy()

StreamChatSwiftUITestsAppTests/Pages/ChannelListPage.swift

@@ -50,7 +50,10 @@ enum ChannelListPage {
             cell.staticTexts["UnreadIndicatorView"]
         }
 
-        static func statusCheckmark(for status: MessageDeliveryStatus?, in cell: XCUIElement) -> XCUIElement {
+        static func statusCheckmark(
+            for status: StreamChatTestMockServer.MessageDeliveryStatus?,
+            in cell: XCUIElement
+        ) -> XCUIElement {
             return cell.images["readIndicatorCheckmark"]
         }
     }