test: introduce test that can route our pages

lib/pages/test_page.dart

@@ -0,0 +1,13 @@
+import 'package:auto_route/auto_route.dart';
+import 'package:flutter/material.dart';
+
+@RoutePage()
+class SailTestPage extends StatelessWidget {
+  final Widget child;
+  const SailTestPage({super.key, required this.child});
+
+  @override
+  Widget build(BuildContext context) {
+    return child;
+  }
+}

lib/routing/router.dart

@@ -1,5 +1,6 @@
 import 'package:auto_route/auto_route.dart';
-import 'package:sidesail/pages/home_page.dart';
+import 'package:flutter/widgets.dart';
+import 'package:sidesail/routing/routes_export.dart';
 
 part 'router.gr.dart';
 
@@ -25,5 +26,9 @@ class AppRouter extends _$AppRouter {
           page: HomeRoute.page,
           initial: true,
         ),
+
+        /// This route is used in tests so that we can pump a widget into a route
+        /// and use the real router for our test
+        AutoRoute(page: SailTestRoute.page),
       ];
 }

lib/routing/routes_export.dart

@@ -1,3 +1,4 @@
 // all routes should be exported from this file!
 
 export 'package:sidesail/pages/home_page.dart';
+export 'package:sidesail/pages/test_page.dart';

test/mocks/storage_mock.dart

@@ -0,0 +1,18 @@
+import 'package:sidesail/storage/client_settings.dart';
+
+class MockStore implements KeyValueStore {
+  final _db = {};
+
+  @override
+  Future<String?> getString(String key) async => _db[key];
+
+  @override
+  Future<void> setString(String key, String value) async {
+    _db[key] = value;
+  }
+
+  @override
+  Future<void> delete(String key) async {
+    _db[key] = null;
+  }
+}

test/test_utils.dart

@@ -0,0 +1,66 @@
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:get_it/get_it.dart';
+import 'package:sidesail/app.dart';
+import 'package:sidesail/routing/router.dart';
+import 'package:sidesail/storage/client_settings.dart';
+
+import 'mocks/storage_mock.dart';
+
+Future<void> _setDeviceSize() async {
+  final TestWidgetsFlutterBinding binding = TestWidgetsFlutterBinding.ensureInitialized();
+  await binding.setSurfaceSize(const Size(1200, 720));
+}
+
+Future<void> loadFonts() async {
+  final sourceCodePro = rootBundle.load('fonts/SourceCodePro-Regular.ttf');
+  final fontLoader = FontLoader('SourceCodePro')..addFont(sourceCodePro);
+  await fontLoader.load();
+}
+
+extension TestExtension on WidgetTester {
+  Future<void> pumpSailPage(
+    Widget child, {
+    bool requireIntensionKyc = false,
+    bool requireKycLevel2 = false,
+  }) async {
+    await _setDeviceSize();
+    await loadFonts();
+    await registerTestDependencies();
+
+    await pumpWidget(
+      SailApp(
+        builder: (context, router) {
+          final appRouter = GetIt.I.get<AppRouter>();
+
+          return MaterialApp.router(
+            routerDelegate: appRouter.delegate(
+              initialRoutes: [SailTestRoute(child: child)],
+            ),
+            routeInformationParser: appRouter.defaultRouteParser(),
+            title: 'SideSail',
+            theme: ThemeData(
+              fontFamily: 'SourceCodePro',
+            ),
+          );
+        },
+      ),
+    );
+    await pumpAndSettle();
+  }
+}
+
+Future<void> registerTestDependencies() async {
+  if (!GetIt.I.isRegistered<AppRouter>()) {
+    GetIt.I.registerLazySingleton<AppRouter>(
+      () => AppRouter(),
+    );
+  }
+
+  if (!GetIt.I.isRegistered<ClientSettings>()) {
+    GetIt.I.registerLazySingleton<ClientSettings>(
+      () => ClientSettings(store: MockStore()),
+    );
+  }
+}

test/widget_test.dart

@@ -6,16 +6,20 @@
 // tree, read text, and verify that the values of widget properties are correct.
 
 import 'package:flutter_test/flutter_test.dart';
+import 'package:sidesail/pages/home_page.dart';
 
-import 'package:sidesail/main.dart';
+import 'test_utils.dart';
 
 void main() {
   testWidgets('RPC submit smoke test', (WidgetTester tester) async {
     // Build our app and trigger a frame.
-    await tester.pumpWidget(const MyApp());
+    await tester.pumpSailPage(
+      const HomePage(),
+    );
 
     // Verify that there's a submit button.
     expect(find.text('Submit'), findsOneWidget);
+    expect(find.text('SideSail'), findsOneWidget);
 
     // TODO: something more meaningful. Would have to mock the RPC interfaces
   });