test(swift-sdk): add testnet identity-discovery UI test

.github/workflows/swift-example-app-ui-smoke.yml

@@ -2,6 +2,20 @@ name: Swift Example App UI Smoke
 
 'on':
   workflow_dispatch:
+  schedule:
+    # 23:00 UTC daily. Aligns with the main `Tests` workflow's nightly
+    # cron (also 23:00 UTC) but runs on a different runner pool
+    # (self-hosted macOS), so they don't compete for compute. The Swift
+    # discovery test hits testnet DAPI; if that becomes a contention
+    # signal, shift to 02:00 UTC.
+    - cron: "0 23 * * *"
+
+concurrency:
+  # Prevents an in-flight manual dispatch from being clobbered by the
+  # cron firing (or vice versa) on the single self-hosted Mac. Cancels
+  # the older run in favor of the newer one.
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
 
 permissions:
   contents: read
@@ -161,13 +175,22 @@ jobs:
         env:
           SIM_UDID: ${{ steps.simulator.outputs.udid }}
           RESULT_BUNDLE_PATH: ${{ runner.temp }}/SwiftExampleAppUITests.xcresult
+          # Forwarded into the XCUITest runner as `UI_TEST_MNEMONIC` —
+          # `xcodebuild test` strips the `TEST_RUNNER_` prefix before
+          # passing env vars through to the test process. Empty on PRs
+          # from forks (GitHub withholds secrets there), and the test
+          # self-skips when the value is empty.
+          TEST_RUNNER_UI_TEST_MNEMONIC: ${{ secrets.UI_TEST_MNEMONIC }}
         run: |
           set -euo pipefail
           xcodebuild test \
             -project SwiftExampleApp/SwiftExampleApp.xcodeproj \
             -scheme SwiftExampleApp \
             -destination "platform=iOS Simulator,id=$SIM_UDID" \
             -only-testing:SwiftExampleAppUITests/SwiftExampleAppUITests/testCreateGeneratedWalletFlow \
+            -only-testing:SwiftExampleAppUITests/WalletPersistenceTests/testWalletPersistsAcrossRelaunch \
+            -only-testing:SwiftExampleAppUITests/WalletPersistenceTests/testWalletDeletionCleanupSurvivesRelaunch \
+            -only-testing:SwiftExampleAppUITests/CreditTransferTest/testImportWalletAndDiscoverIdentity \
             -parallel-testing-enabled NO \
             -maximum-concurrent-test-simulator-destinations 1 \
             -resultBundlePath "$RESULT_BUNDLE_PATH"

packages/swift-sdk/SwiftExampleApp/SwiftExampleApp/AppState.swift

@@ -9,12 +9,27 @@ class AppState: ObservableObject {
     @Published var showError = false
     @Published var errorMessage = ""
 
+    /// `true` from the moment a network change is requested until the
+    /// new SDK is bound. Spans the full async cycle (didSet → Task →
+    /// `switchNetwork` → `sdk = newSDK`), so consumers can wait on it
+    /// as a real readiness signal. UI bindings should treat
+    /// `appState.sdk != nil && !isSwitchingNetwork` as "connected on
+    /// the current network" — `appState.sdk != nil` alone is true even
+    /// while `switchNetwork` is still tearing down the previous SDK.
+    @Published var isSwitchingNetwork: Bool = false
+
+    /// Monotonic request id for in-flight switches. If two switches
+    /// overlap (user taps mainnet → testnet before the first lands), the
+    /// earlier task's completion would otherwise clear `isSwitchingNetwork`
+    /// while the later switch is still running. Each new request bumps
+    /// this counter and the spawned task only clears the flag when its
+    /// captured id still matches.
+    private var networkSwitchRequestID: UInt64 = 0
+
     @Published var currentNetwork: AppNetwork {
         didSet {
             UserDefaults.standard.set(currentNetwork.rawValue, forKey: "currentNetwork")
-            Task {
-                await switchNetwork(to: currentNetwork)
-            }
+            beginNetworkSwitch()
         }
     }
 
@@ -27,7 +42,23 @@ class AppState: ObservableObject {
             UserDefaults.standard.set(useDockerSetup, forKey: "useLocalhostPlatform")
             UserDefaults.standard.set(useDockerSetup, forKey: "useLocalhostCore")
             UserDefaults.standard.set(useDockerSetup, forKey: "useLocalhost")
-            Task { await switchNetwork(to: currentNetwork) }
+            beginNetworkSwitch()
+        }
+    }
+
+    /// Bumps `networkSwitchRequestID`, raises `isSwitchingNetwork`, and
+    /// spawns the SDK-rebuild task. Only the task that owns the latest
+    /// request id may lower `isSwitchingNetwork` again — overlapping
+    /// switches' earlier tasks no-op on completion.
+    private func beginNetworkSwitch() {
+        networkSwitchRequestID &+= 1
+        let requestID = networkSwitchRequestID
+        isSwitchingNetwork = true
+        Task {
+            await switchNetwork(to: currentNetwork)
+            if requestID == networkSwitchRequestID {
+                isSwitchingNetwork = false
+            }
         }
     }
 

packages/swift-sdk/SwiftExampleApp/SwiftExampleApp/ContentView.swift

@@ -86,6 +86,7 @@ struct ContentView: View {
 
                 // Tab 3: Identities
                 IdentitiesTabView()
+                    .accessibilityIdentifier("rootTab.identities")
                     .tabItem {
                         Label("Identities", systemImage: "person.crop.circle")
                     }
@@ -107,6 +108,7 @@ struct ContentView: View {
 
                 // Tab 5: Settings (includes Platform section)
                 SettingsView()
+                    .accessibilityIdentifier("rootTab.settings")
                     .tabItem {
                         Label("Settings", systemImage: "gearshape")
                     }

packages/swift-sdk/SwiftExampleApp/SwiftExampleApp/Core/Views/CreateWalletView.swift

@@ -136,6 +136,7 @@ struct CreateWalletView: View {
 
             Section {
                 Toggle("Import Existing Wallet", isOn: $showImportOption)
+                    .accessibilityIdentifier("createWallet.importToggle")
             } header: {
                 Text("Options")
             }
@@ -164,6 +165,7 @@ struct CreateWalletView: View {
                         .autocorrectionDisabled()
                         .lineLimit(3...6)
                         .focused($focusedField, equals: .mnemonic)
+                        .accessibilityIdentifier("createWallet.mnemonicField")
                 } header: {
                     Text("Recovery Phrase")
                 } footer: {

packages/swift-sdk/SwiftExampleApp/SwiftExampleApp/Core/Views/IdentitiesContentView.swift

@@ -136,9 +136,11 @@ struct IdentitiesContentView: View {
                     } label: {
                         Label("Search Wallets for Identities", systemImage: "magnifyingglass")
                     }
+                    .accessibilityIdentifier("identities.searchWalletsMenuItem")
                 } label: {
                     Image(systemName: "plus")
                 }
+                .accessibilityIdentifier("identities.addMenu")
             }
         }
         .sheet(isPresented: $showingLoadIdentity) {

packages/swift-sdk/SwiftExampleApp/SwiftExampleApp/Views/IdentitiesView.swift

@@ -100,6 +100,7 @@ struct IdentityRow: View {
             }
             .padding(.vertical, 4)
         }
+        .accessibilityIdentifier("identities.row.\(identity.identityIdBase58)")
     }
 
     private func refreshBalance() async {

packages/swift-sdk/SwiftExampleApp/SwiftExampleApp/Views/IdentityDetailView.swift

@@ -109,6 +109,12 @@ struct IdentityDetailView: View {
                     Text(identity.formattedBalance)
                         .foregroundColor(.blue)
                         .fontWeight(.medium)
+                        .accessibilityIdentifier("identityDetail.balanceLabel")
+                        // Display string is "%.8f DASH" — rounding hides
+                        // sub-1000-credit deltas. Expose the raw credit
+                        // count via accessibilityValue for tests that
+                        // need exact numbers.
+                        .accessibilityValue("\(UInt64(bitPattern: identity.balance))")
                 }
 
                 // Top-up entry point. Hidden for purely-local rows

packages/swift-sdk/SwiftExampleApp/SwiftExampleApp/Views/OptionsView.swift

@@ -9,7 +9,6 @@ struct OptionsView: View {
     @State private var showingDataManagement = false
     @State private var showingAbout = false
     @State private var showingContracts = false
-    @State private var isSwitchingNetwork = false
     @State private var sdkStatus: SDKStatus?
     @State private var isLoadingStatus = false
 
@@ -28,27 +27,22 @@ struct OptionsView: View {
                         get: { appState.currentNetwork },
                         set: { newNetwork in
                             if newNetwork != appState.currentNetwork {
-                                isSwitchingNetwork = true
-                                Task {
-                                    // Auto-disable Docker when leaving Local
-                                    if newNetwork != .regtest && appState.useDockerSetup {
-                                        appState.useDockerSetup = false
-                                    }
-
-                                    // Update platform state (which will trigger SDK switch)
-                                    appState.currentNetwork = newNetwork
-
-                                    // Reset per-network services. TODO(platform-wallet):
-                                    // Once PlatformWalletManager supports network
-                                    // switching cleanly, call into it here.
-                                    try? walletManager.stopSpv()
-                                    platformBalanceSyncService.reset()
-                                    shieldedService.reset()
-
-                                    await MainActor.run {
-                                        isSwitchingNetwork = false
-                                    }
+                                // Auto-disable Docker when leaving Local
+                                if newNetwork != .regtest && appState.useDockerSetup {
+                                    appState.useDockerSetup = false
                                 }
+
+                                // `currentNetwork.didSet` (in AppState) flips
+                                // `isSwitchingNetwork` for us and awaits the
+                                // SDK rebind, so the status label below stays
+                                // in the switching state across the entire
+                                // async cycle. Reset per-network services
+                                // alongside the switch — these don't gate
+                                // readiness, they just clean up stale UI.
+                                appState.currentNetwork = newNetwork
+                                try? walletManager.stopSpv()
+                                platformBalanceSyncService.reset()
+                                shieldedService.reset()
                             }
                         }
                     )) {
@@ -57,17 +51,14 @@ struct OptionsView: View {
                         }
                     }
                     .pickerStyle(SegmentedPickerStyle())
-                    .disabled(isSwitchingNetwork)
+                    .disabled(appState.isSwitchingNetwork)
+                    .accessibilityIdentifier("options.networkPicker")
 
                     if appState.currentNetwork == .regtest {
+                        // `useDockerSetup.didSet` (in AppState) drives the
+                        // SDK rebuild and `isSwitchingNetwork`; no view-side
+                        // onChange is needed.
                         Toggle("Use Docker Setup", isOn: $appState.useDockerSetup)
-                            .onChange(of: appState.useDockerSetup) { _, _ in
-                                isSwitchingNetwork = true
-                                Task {
-                                    await appState.switchNetwork(to: appState.currentNetwork)
-                                    await MainActor.run { isSwitchingNetwork = false }
-                                }
-                            }
                             .help("Connect to local dashmate Docker network.")
 
                         if appState.useDockerSetup {
@@ -84,23 +75,29 @@ struct OptionsView: View {
                     HStack {
                         Text("Network Status")
                         Spacer()
-                        if isSwitchingNetwork {
-                            HStack(spacing: 4) {
-                                ProgressView()
-                                    .scaleEffect(0.8)
-                                Text("Switching...")
+                        Group {
+                            if appState.isSwitchingNetwork {
+                                HStack(spacing: 4) {
+                                    ProgressView()
+                                        .scaleEffect(0.8)
+                                    Text("Switching...")
+                                        .font(.caption)
+                                        .foregroundColor(.secondary)
+                                }
+                            } else if appState.sdk != nil {
+                                Label("Connected", systemImage: "checkmark.circle.fill")
+                                    .font(.caption)
+                                    .foregroundColor(.green)
+                            } else {
+                                Label("Disconnected", systemImage: "xmark.circle.fill")
                                     .font(.caption)
-                                    .foregroundColor(.secondary)
+                                    .foregroundColor(.red)
                             }
-                        } else if appState.sdk != nil {
-                            Label("Connected", systemImage: "checkmark.circle.fill")
-                                .font(.caption)
-                                .foregroundColor(.green)
-                        } else {
-                            Label("Disconnected", systemImage: "xmark.circle.fill")
-                                .font(.caption)
-                                .foregroundColor(.red)
                         }
+                        // Tests wait on this label transitioning to "Connected"
+                        // after a network switch (signal-based, not sleep-based).
+                        .accessibilityElement(children: .combine)
+                        .accessibilityIdentifier("options.networkStatusLabel")
                     }
 
                 }

packages/swift-sdk/SwiftExampleApp/SwiftExampleApp/Views/SearchWalletsForIdentitiesView.swift

@@ -147,6 +147,7 @@ struct SearchWalletsForIdentitiesView: View {
                 }
                 .pickerStyle(.menu)
                 .disabled(isSearching || hdWallets.count < 1)
+                .accessibilityIdentifier("searchWallets.walletPicker")
             }
         }
     }
@@ -169,6 +170,7 @@ struct SearchWalletsForIdentitiesView: View {
                 Text("+\(finding.foundCount)")
                     .fontWeight(.semibold)
                     .foregroundColor(finding.foundCount > 0 ? .green : .secondary)
+                    .accessibilityIdentifier("searchWallets.foundCountLabel")
             }
             if let err = finding.error {
                 // No `.lineLimit` — identity-derivation errors can
@@ -298,6 +300,7 @@ struct SearchWalletsForIdentitiesView: View {
                     || selectedWalletId == nil
                     || selectedManagedWallet == nil
             )
+            .accessibilityIdentifier("searchWallets.searchButton")
             if selectedWalletId != nil && selectedManagedWallet == nil {
                 Text("This wallet isn't loaded in the wallet manager yet. "
                     + "Restore it from the Wallets tab and try again.")

packages/swift-sdk/SwiftExampleApp/SwiftExampleApp/Views/TransitionDetailView.swift

@@ -158,13 +158,15 @@ struct TransitionDetailView: View {
           ForEach(identities, id: \.identityIdBase58) { identity in
             Text(identity.displayName)
               .tag(identity.identityIdBase58)
+              .accessibilityIdentifier("transition.senderIdentityOption.\(identity.identityIdBase58)")
           }
         }
         .pickerStyle(MenuPickerStyle())
         .padding()
         .frame(maxWidth: .infinity, alignment: .leading)
         .background(Color.gray.opacity(0.1))
         .cornerRadius(8)
+        .accessibilityIdentifier("transition.senderIdentityPicker")
       }
     }
   }
@@ -188,6 +190,7 @@ struct TransitionDetailView: View {
     .foregroundColor(.white)
     .cornerRadius(10)
     .disabled(!enabled)
+    .accessibilityIdentifier("transition.executeButton")
   }
 
   private var resultView: some View {
@@ -197,6 +200,7 @@ struct TransitionDetailView: View {
           .foregroundColor(isError ? .red : .green)
         Text(isError ? "Error" : "Success")
           .font(.headline)
+          .accessibilityIdentifier("transition.resultStatusLabel")
         Spacer()
         Button("Copy") {
           UIPasteboard.general.string = resultText

packages/swift-sdk/SwiftExampleApp/SwiftExampleApp/Views/TransitionInputView.swift

@@ -191,6 +191,7 @@ struct TransitionInputView: View {
             }
         }
         .padding(.vertical, 4)
+        .accessibilityIdentifier("transition.input.\(input.name)")
     }
 
     @ViewBuilder
@@ -539,6 +540,7 @@ struct TransitionInputView: View {
                                 .foregroundColor(.white)
                                 .cornerRadius(8)
                         }
+                        .accessibilityIdentifier("transition.input.\(input.name).manualEntryButton")
                     }
                 } else {
                     Picker("Select Identity", selection: $value) {
@@ -560,11 +562,13 @@ struct TransitionInputView: View {
                             useManualEntry = true
                         }
                     }
+                    .accessibilityIdentifier("transition.input.\(input.name).recipientPicker")
                 }
             } else {
                 VStack(alignment: .leading, spacing: 8) {
                     TextField("Enter recipient identity ID", text: $value)
                         .textFieldStyle(RoundedBorderTextFieldStyle())
+                        .accessibilityIdentifier("transition.input.\(input.name).manualEntryField")
 
                     if !identities.isEmpty {
                         Button(action: {