major refactor

test/widget_test.dart

@@ -1,30 +1,18 @@
-// This is a basic Flutter widget test.
-//
-// To perform an interaction with a widget in your test, use the WidgetTester
-// utility in the flutter_test package. For example, you can send tap and scroll
-// gestures. You can also use WidgetTester to find child widgets in the widget
-// tree, read text, and verify that the values of widget properties are correct.
-
-import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
-
-import 'package:mileograph_flutter/main.dart';
+import 'package:mileograph_flutter/app.dart';
+import 'package:shared_preferences/shared_preferences.dart';
 
 void main() {
-  testWidgets('Counter increments smoke test', (WidgetTester tester) async {
-    // Build our app and trigger a frame.
-    await tester.pumpWidget(MyApp());
+  TestWidgetsFlutterBinding.ensureInitialized();
 
-    // Verify that our counter starts at 0.
-    expect(find.text('0'), findsOneWidget);
-    expect(find.text('1'), findsNothing);
+  setUp(() {
+    SharedPreferences.setMockInitialValues({});
+  });
 
-    // Tap the '+' icon and trigger a frame.
-    await tester.tap(find.byIcon(Icons.add));
-    await tester.pump();
+  testWidgets('Shows login UI when logged out', (WidgetTester tester) async {
+    await tester.pumpWidget(const App());
+    await tester.pump(const Duration(milliseconds: 100));
 
-    // Verify that our counter has incremented.
-    expect(find.text('0'), findsNothing);
-    expect(find.text('1'), findsOneWidget);
+    expect(find.text('Login'), findsWidgets);
   });
 }