feat(account): 增加账号中心页面逻辑

test/account/account_logic_test.dart

@@ -0,0 +1,101 @@
+// Author: fruit.com.cn
+
+import 'package:flutter_test/flutter_test.dart';
+import 'package:fruitshorts/core/data/models/account_device.dart';
+import 'package:fruitshorts/core/data/models/account_profile.dart';
+import 'package:fruitshorts/pages/account/account_deactivate_logic.dart';
+import 'package:fruitshorts/pages/account/account_devices_logic.dart';
+import 'package:fruitshorts/pages/account/account_export_logic.dart';
+import 'package:fruitshorts/pages/account/account_profile_logic.dart';
+
+import '../support/fake_account_repository.dart';
+
+void main() {
+  test('should_update_profile_and_notify_auth_when_saved', () async {
+    final repository = FakeAccountRepository();
+    AccountProfile? applied;
+    final logic = AccountProfileLogic(
+      repository,
+      onProfileUpdated: (profile) async => applied = profile,
+    );
+    await logic.load();
+
+    final ok = await logic.save(
+      nickname: '  Nadia Baru  ',
+      gender: 'unknown',
+      birthday: '1999-01-02',
+    );
+
+    expect(ok, isTrue);
+    expect(repository.lastUpdate?.nickname, 'Nadia Baru');
+    expect(repository.lastUpdate?.gender, 'unknown');
+    expect(repository.lastUpdate?.birthday, '1999-01-02');
+    expect(applied?.nickname, 'Nadia Baru');
+  });
+
+  test('should_load_devices_and_keep_the_page_read_only', () async {
+    final repository = FakeAccountRepository(
+      devices: const [
+        AccountDevice(
+          id: '1',
+          deviceId: 'd-device-1234',
+          platform: 'IOS',
+          deviceModel: 'iPhone 15',
+          status: 'active',
+        ),
+      ],
+    );
+    final logic = AccountDevicesLogic(repository);
+
+    await logic.load();
+
+    expect(logic.devices.single.deviceModel, 'iPhone 15');
+    expect(logic.loading, isFalse);
+    expect(logic.error, isNull);
+  });
+
+  test('should_copy_complete_export_json_when_requested', () async {
+    final repository = FakeAccountRepository();
+    String copied = '';
+    final logic = AccountExportLogic(
+      repository,
+      copyText: (value) async => copied = value,
+    );
+    await logic.load();
+
+    final ok = await logic.copy();
+
+    expect(ok, isTrue);
+    expect(copied, contains('"credentials"'));
+    expect(copied, contains('n***@example.com'));
+  });
+
+  test('should_clear_session_and_keep_schedule_when_deactivation_succeeds', () async {
+    final repository = FakeAccountRepository();
+    var cleared = false;
+    final logic = AccountDeactivateLogic(
+      repository,
+      clearSession: () async => cleared = true,
+    );
+
+    final ok = await logic.request('不再使用');
+
+    expect(ok, isTrue);
+    expect(repository.lastDeactivateReason, '不再使用');
+    expect(logic.scheduledAt, DateTime(2026, 11, 3, 9, 30));
+    expect(cleared, isTrue);
+  });
+
+  test('should_show_backend_message_when_cancel_deactivation_fails', () async {
+    final repository = FakeAccountRepository()..failCancel = true;
+    final logic = AccountDeactivateLogic(
+      repository,
+      clearSession: () async {},
+    );
+
+    final ok = await logic.cancel();
+
+    expect(ok, isFalse);
+    expect(logic.actionMessage, '没有待处理的注销申请');
+  });
+}