add traction import export

test/pages/dashboard_page_test.dart

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+import 'package:flutter_test/flutter_test.dart';
+import 'package:go_router/go_router.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+import 'package:mileograph_flutter/components/pages/dashboard.dart';
+
+import '../helpers/fake_services.dart';
+import '../helpers/test_app.dart';
+import '../helpers/test_data.dart';
+
+void main() {
+  TestWidgetsFlutterBinding.ensureInitialized();
+
+  setUpAll(() {
+    SharedPreferences.setMockInitialValues({});
+  });
+
+  testWidgets('Dashboard renders stats and panels', (tester) async {
+    final data = FakeDataService()
+      ..homepageStatsValue = TestData.homepageStats
+      ..tripsValue = TestData.tripSummaries
+      ..onThisDayValue = TestData.onThisDayLegs()
+      ..classClearanceProgressValue = TestData.classClearance
+      ..latestLocoChangesValue = TestData.latestLocoChanges
+      ..tractionValue = TestData.traction
+      ..currentYearMileageValue = 1200.5;
+    final auth = FakeAuthService(api: FakeApiService());
+    final router = GoRouter(
+      routes: [
+        GoRoute(
+          path: '/',
+          builder: (context, state) => const Dashboard(),
+        ),
+      ],
+    );
+
+    await tester.pumpWidget(
+      buildTestRouterApp(
+        router: router,
+        dataService: data,
+        authService: auth,
+      ),
+    );
+    await tester.pumpAndSettle();
+
+    expect(find.text('Dashboard'), findsOneWidget);
+    expect(find.textContaining('Welcome back, Alex Rider'), findsOneWidget);
+    expect(find.text('Top traction'), findsOneWidget);
+    expect(find.text('67 001'), findsOneWidget);
+    expect(find.text('On this day'), findsOneWidget);
+    expect(find.text('York → Durham'), findsOneWidget);
+    expect(find.text('Latest Loco Changes'), findsOneWidget);
+    expect(find.text('Status'), findsWidgets);
+    expect(find.text('Active'), findsWidgets);
+  });
+
+  testWidgets('Dashboard shows loading overlay without stats', (tester) async {
+    final data = FakeDataService()
+      ..homepageStatsValue = null
+      ..isHomepageLoadingValue = true;
+    final auth = FakeAuthService(api: FakeApiService());
+    final router = GoRouter(
+      routes: [
+        GoRoute(
+          path: '/',
+          builder: (context, state) => const Dashboard(),
+        ),
+      ],
+    );
+
+    await tester.pumpWidget(
+      buildTestRouterApp(
+        router: router,
+        dataService: data,
+        authService: auth,
+      ),
+    );
+    await tester.pump();
+
+    expect(find.text('Loading dashboard data...'), findsOneWidget);
+    expect(find.byType(CircularProgressIndicator), findsWidgets);
+  });
+}

test/pages/entries_page_test.dart

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+import 'package:flutter_test/flutter_test.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+import 'package:mileograph_flutter/components/pages/legs.dart';
+import 'package:mileograph_flutter/services/distance_unit_service.dart';
+
+import '../helpers/fake_services.dart';
+import '../helpers/test_app.dart';
+import '../helpers/test_data.dart';
+
+void main() {
+  TestWidgetsFlutterBinding.ensureInitialized();
+
+  setUpAll(() {
+    SharedPreferences.setMockInitialValues({});
+  });
+
+  testWidgets('Entries page shows legs and mileage summary', (tester) async {
+    final data = FakeDataService()..legsValue = TestData.legs;
+    final auth = FakeAuthService(api: FakeApiService());
+    final distanceUnits = FakeDistanceUnitService(
+      unitOverride: DistanceUnit.milesDecimal,
+    );
+
+    await tester.pumpWidget(
+      buildTestApp(
+        child: const LegsPage(),
+        dataService: data,
+        authService: auth,
+        distanceUnitService: distanceUnits,
+      ),
+    );
+    await tester.pumpAndSettle();
+
+    expect(find.text('Entries'), findsOneWidget);
+    expect(find.text('Page mileage'), findsOneWidget);
+    expect(find.textContaining('mi'), findsWidgets);
+    expect(find.text('London'), findsOneWidget);
+    expect(find.text('Oxford'), findsOneWidget);
+  });
+
+  testWidgets('Entries page shows empty state', (tester) async {
+    final data = FakeDataService()
+      ..legsValue = []
+      ..isLegsLoadingValue = false;
+    final auth = FakeAuthService(api: FakeApiService());
+
+    await tester.pumpWidget(
+      buildTestApp(
+        child: const LegsPage(),
+        dataService: data,
+        authService: auth,
+      ),
+    );
+    await tester.pumpAndSettle();
+
+    expect(find.text('No entries found'), findsOneWidget);
+    expect(find.text('Adjust the filters or add a new leg.'), findsOneWidget);
+  });
+}

test/pages/traction_page_test.dart

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+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:go_router/go_router.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+import 'package:mileograph_flutter/components/pages/traction.dart';
+
+import '../helpers/fake_services.dart';
+import '../helpers/test_app.dart';
+import '../helpers/test_data.dart';
+
+void main() {
+  TestWidgetsFlutterBinding.ensureInitialized();
+
+  setUpAll(() {
+    SharedPreferences.setMockInitialValues({});
+  });
+
+  testWidgets('Traction page shows list data', (tester) async {
+    final data = FakeDataService()
+      ..tractionValue = TestData.traction
+      ..locoClassesValue = ['67', '68']
+      ..eventFieldsValue = TestData.eventFields;
+    final auth = FakeAuthService(api: FakeApiService(), isElevatedValue: true);
+    final router = GoRouter(
+      routes: [
+        GoRoute(
+          path: '/',
+          builder: (context, state) => const TractionPage(),
+        ),
+      ],
+    );
+
+    await tester.pumpWidget(
+      buildTestRouterApp(
+        router: router,
+        dataService: data,
+        authService: auth,
+      ),
+    );
+    await tester.pumpAndSettle();
+
+    expect(find.text('Traction'), findsOneWidget);
+    expect(find.text('67'), findsWidgets);
+    expect(find.text('001'), findsWidgets);
+  });
+
+  testWidgets('Traction page shows export when class filter set', (tester) async {
+    final data = FakeDataService()
+      ..tractionValue = TestData.traction
+      ..locoClassesValue = ['67', '68']
+      ..eventFieldsValue = TestData.eventFields;
+    final auth = FakeAuthService(api: FakeApiService(), isElevatedValue: true);
+    final router = GoRouter(
+      routes: [
+        GoRoute(
+          path: '/',
+          builder: (context, state) => const TractionPage(),
+        ),
+      ],
+    );
+
+    await tester.pumpWidget(
+      buildTestRouterApp(
+        router: router,
+        dataService: data,
+        authService: auth,
+      ),
+    );
+    await tester.pumpAndSettle();
+
+    expect(find.textContaining('Export'), findsNothing);
+
+    final classField = find.byWidgetPredicate(
+      (widget) =>
+          widget is TextField && widget.decoration?.labelText == 'Class',
+    );
+    await tester.enterText(classField, '67');
+    await tester.pump();
+
+    expect(find.text('Export 67'), findsOneWidget);
+  });
+
+  testWidgets('Traction page shows admin import option', (tester) async {
+    final data = FakeDataService()
+      ..tractionValue = TestData.traction
+      ..locoClassesValue = ['67', '68']
+      ..eventFieldsValue = TestData.eventFields
+      ..pendingLocoCountValue = 2;
+    final auth = FakeAuthService(api: FakeApiService(), isElevatedValue: true);
+    final router = GoRouter(
+      routes: [
+        GoRoute(
+          path: '/',
+          builder: (context, state) => const TractionPage(),
+        ),
+      ],
+    );
+
+    await tester.pumpWidget(
+      buildTestRouterApp(
+        router: router,
+        dataService: data,
+        authService: auth,
+      ),
+    );
+    await tester.pumpAndSettle();
+
+    await tester.tap(find.byType(PopupMenuButton));
+    await tester.pumpAndSettle();
+
+    expect(find.text('Import traction'), findsOneWidget);
+  });
+}

test/pages/trips_page_test.dart

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+import 'package:flutter_test/flutter_test.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+import 'package:mileograph_flutter/components/pages/trips.dart';
+import 'package:mileograph_flutter/services/distance_unit_service.dart';
+
+import '../helpers/fake_services.dart';
+import '../helpers/test_app.dart';
+import '../helpers/test_data.dart';
+
+void main() {
+  TestWidgetsFlutterBinding.ensureInitialized();
+
+  setUpAll(() {
+    SharedPreferences.setMockInitialValues({});
+  });
+
+  testWidgets('Trips page shows trip details', (tester) async {
+    final data = FakeDataService()
+      ..tripDetailsValue = TestData.tripDetails
+      ..tripListValue = TestData.tripSummaries;
+    final auth = FakeAuthService(api: FakeApiService());
+    final distanceUnits = FakeDistanceUnitService(
+      unitOverride: DistanceUnit.milesDecimal,
+    );
+
+    await tester.pumpWidget(
+      buildTestApp(
+        child: const TripsPage(),
+        dataService: data,
+        authService: auth,
+        distanceUnitService: distanceUnits,
+      ),
+    );
+    await tester.pumpAndSettle();
+
+    expect(find.text('Trips'), findsOneWidget);
+    expect(find.text('North Run'), findsOneWidget);
+    expect(find.textContaining('mi'), findsWidgets);
+  });
+
+  testWidgets('Trips page shows empty state', (tester) async {
+    final data = FakeDataService()
+      ..tripDetailsValue = []
+      ..tripListValue = []
+      ..isTripDetailsLoadingValue = false;
+    final auth = FakeAuthService(api: FakeApiService());
+
+    await tester.pumpWidget(
+      buildTestApp(
+        child: const TripsPage(),
+        dataService: data,
+        authService: auth,
+      ),
+    );
+    await tester.pumpAndSettle();
+
+    expect(find.text('No trips yet'), findsOneWidget);
+    expect(
+      find.text('Use the Add entry flow to start grouping legs into trips.'),
+      findsOneWidget,
+    );
+  });
+}