feat: select school before connecting timetable

mobile/test/widgets/glass_dock_test.dart

@@ -28,16 +28,16 @@ void main() {
     await tester.drag(find.text('周三'), const Offset(-250, 0));
     await tester.pumpAndSettle();
     expect(find.text('第 2 周'), findsOneWidget);
-    expect(find.text('登录学校账户'), findsNothing);
+    expect(find.text('选择学校'), findsNothing);
     await tester.drag(
       find.byKey(const Key('dock-cursor')),
       const Offset(185, 0),
     );
     await tester.pumpAndSettle();
-    expect(find.text('登录学校账户'), findsOneWidget);
-    await tester.drag(find.text('连接学校课表'), const Offset(250, 0));
+    expect(find.text('选择学校'), findsOneWidget);
+    await tester.drag(find.text('学校课表'), const Offset(250, 0));
     await tester.pumpAndSettle();
-    expect(find.text('登录学校账户'), findsOneWidget);
+    expect(find.text('选择学校'), findsOneWidget);
     await tester.drag(
       find.byKey(const Key('dock-cursor')),
       const Offset(-185, 0),
@@ -46,7 +46,7 @@ void main() {
     expect(find.text('示例课表'), findsOneWidget);
     await tester.tap(find.text('我的'));
     await tester.pumpAndSettle();
-    expect(find.text('登录学校账户'), findsOneWidget);
+    expect(find.text('选择学校'), findsOneWidget);
     c.dispose();
   });
   testWidgets('cancelled cursor drag keeps selected tab', (tester) async {

mobile/test/widgets/navigation_test.dart

@@ -24,7 +24,7 @@ void main() {
     expect(find.bySemanticsLabel('个人设置'), findsOneWidget);
     await tester.tap(find.bySemanticsLabel('个人设置'));
     await tester.pumpAndSettle();
-    expect(find.text('登录学校账户'), findsOneWidget);
+    expect(find.text('选择学校'), findsOneWidget);
     expect(find.text('课表设置'), findsOneWidget);
     await tester.tap(find.bySemanticsLabel('课表'));
     await tester.pumpAndSettle();

mobile/test/widgets/rschedule_navigation_test.dart

@@ -40,7 +40,7 @@ void main() {
     expect(find.text('考试安排'), findsOneWidget);
     await tester.tap(find.bySemanticsLabel('个人设置'));
     await tester.pumpAndSettle();
-    expect(find.text('登录学校账户'), findsOneWidget);
+    expect(find.text('选择学校'), findsOneWidget);
     c.dispose();
   });
 }

mobile/test/widgets/school_selection_test.dart

@@ -0,0 +1,142 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:timezone/data/latest.dart' as tzdata;
+import 'package:webview_flutter_platform_interface/webview_flutter_platform_interface.dart';
+import 'package:hepan_everyday/app/hepan_app.dart';
+import 'package:hepan_everyday/domain/school_term.dart';
+import 'package:hepan_everyday/features/school/school_session.dart';
+
+import '../support/fake_school_web.dart';
+import 'navigation_test.dart' show uiController;
+
+void main() {
+  setUpAll(tzdata.initializeTimeZones);
+
+  testWidgets('cancelling school selection never starts authentication', (
+    tester,
+  ) async {
+    WebViewPlatform.instance = FakeSchoolPlatform();
+    final session = SchoolSession();
+    final controller = uiController();
+    await controller.initialize();
+    addTearDown(session.dispose);
+    addTearDown(controller.dispose);
+    await tester.pumpWidget(
+      HepanApp(
+        controller: controller,
+        school: session,
+        schoolBuilder: () => const Scaffold(body: Text('学校认证页面')),
+      ),
+    );
+    await tester.pumpAndSettle();
+    await tester.tap(find.bySemanticsLabel('个人设置'));
+    await tester.pumpAndSettle();
+    await tester.tap(find.widgetWithText(FilledButton, '选择学校'));
+    await tester.pumpAndSettle();
+    expect(find.text('电子科技大学（研究生）'), findsOneWidget);
+    expect(session.hasOpened, isFalse);
+    expect(find.text('学校认证页面'), findsNothing);
+    await tester.tap(find.byType(BackButton));
+    await tester.pumpAndSettle();
+    expect(session.hasOpened, isFalse);
+    expect(find.widgetWithText(FilledButton, '选择学校'), findsOneWidget);
+    expect(controller.snapshot.courses, isEmpty);
+  });
+
+  testWidgets('selecting UESTC graduate enters its existing authentication', (
+    tester,
+  ) async {
+    final platform = FakeSchoolPlatform();
+    WebViewPlatform.instance = platform;
+    final session = SchoolSession();
+    final controller = uiController();
+    await controller.initialize();
+    addTearDown(session.dispose);
+    addTearDown(controller.dispose);
+    await tester.pumpWidget(
+      HepanApp(
+        controller: controller,
+        school: session,
+        schoolBuilder: () => const Scaffold(body: Text('学校认证页面')),
+      ),
+    );
+    await tester.pumpAndSettle();
+    await tester.tap(find.bySemanticsLabel('个人设置'));
+    await tester.pumpAndSettle();
+    await tester.tap(find.widgetWithText(FilledButton, '选择学校'));
+    await tester.pumpAndSettle();
+    expect(session.hasOpened, isFalse);
+    await tester.tap(find.text('电子科技大学（研究生）'));
+    await tester.pumpAndSettle();
+    expect(find.text('学校认证页面'), findsOneWidget);
+    expect(session.hasOpened, isTrue);
+    expect(platform.web.loads, ['https://yjsjy.uestc.edu.cn/pyxx/jzsso/login']);
+    Navigator.pop(tester.element(find.text('学校认证页面')));
+    await tester.pumpAndSettle();
+    expect(find.textContaining('电子科技大学（研究生）'), findsOneWidget);
+  });
+
+  testWidgets('first exam sync selects school before opening exam workflow', (
+    tester,
+  ) async {
+    WebViewPlatform.instance = FakeSchoolPlatform();
+    final session = SchoolSession();
+    final controller = uiController();
+    await controller.initialize();
+    addTearDown(session.dispose);
+    addTearDown(controller.dispose);
+    await tester.pumpWidget(
+      HepanApp(
+        controller: controller,
+        school: session,
+        schoolBuilder: () => const Scaffold(body: Text('学校认证页面')),
+      ),
+    );
+    await tester.pumpAndSettle();
+    await tester.tap(find.bySemanticsLabel('考试'));
+    await tester.pumpAndSettle();
+    await tester.tap(find.byTooltip('从学校更新考试'));
+    await tester.pumpAndSettle();
+    expect(find.text('电子科技大学（研究生）'), findsOneWidget);
+    expect(session.hasOpened, isFalse);
+    await tester.tap(find.text('电子科技大学（研究生）'));
+    await tester.pumpAndSettle();
+    expect(session.requestingExams, isTrue);
+    expect(find.text('学校认证页面'), findsOneWidget);
+  });
+
+  testWidgets('connected refresh keeps the school and imported semester', (
+    tester,
+  ) async {
+    final platform = FakeSchoolPlatform();
+    WebViewPlatform.instance = platform;
+    final session = SchoolSession();
+    await session.openTimetable(term: SchoolTerm(72));
+    session.connectionState = SchoolConnectionState.connected;
+    final controller = uiController();
+    await controller.initialize();
+    controller.snapshot = controller.snapshot.copyWith(
+      schoolTerm: SchoolTerm(72),
+    );
+    addTearDown(session.dispose);
+    addTearDown(controller.dispose);
+    await tester.pumpWidget(
+      HepanApp(
+        controller: controller,
+        school: session,
+        schoolBuilder: () => const Scaffold(body: Text('学校认证页面')),
+      ),
+    );
+    await tester.pumpAndSettle();
+    await tester.tap(find.byTooltip('刷新课表'));
+    await tester.pumpAndSettle();
+    expect(find.text('学校认证页面'), findsOneWidget);
+    expect(find.text('电子科技大学（研究生）'), findsNothing);
+    expect(
+      platform.web.loads.last,
+      'https://yjsjy.uestc.edu.cn/pyxx/pygl/xskbcx/index/72',
+    );
+    expect(session.selectedTerm, SchoolTerm(72));
+    session.setReadingActive(false);
+  });
+}