import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:social_app/main.dart';

void main() {
  testWidgets('Login screen loads correctly', (WidgetTester tester) async {
    await tester.pumpWidget(const LinksyApp());
    expect(find.text('linksy'), findsOneWidget);
    expect(find.text('继续'), findsOneWidget);
    expect(find.text('还没有账号？去注册'), findsOneWidget);
  });

  testWidgets('Main content is vertically centered above footer', (
    WidgetTester tester,
  ) async {
    await tester.pumpWidget(const LinksyApp());

    final safeAreaRect = tester.getRect(find.byType(SafeArea));
    final mainRect = tester.getRect(
      find.byKey(const Key('login_main_content')),
    );
    final footerRect = tester.getRect(find.byKey(const Key('login_footer')));

    final topSpace = mainRect.top - safeAreaRect.top;
    final bottomSpace = footerRect.top - mainRect.bottom;

    expect((topSpace - bottomSpace).abs(), lessThanOrEqualTo(2));
  });
}