first working version

test/state/account_block_state_test.dart

@@ -0,0 +1,118 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:http/http.dart' as http;
+import 'package:http/testing.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+import 'package:deflockapp/services/osm_block_service.dart';
+import 'package:deflockapp/state/account_block_state.dart';
+import 'package:deflockapp/state/settings_state.dart';
+
+void main() {
+  setUp(() {
+    SharedPreferences.setMockInitialValues({});
+  });
+
+  group('AccountBlockState', () {
+    test('defaults to not blocked before init()', () {
+      final state = AccountBlockState();
+      expect(state.isBlocked, isFalse);
+    });
+
+    test('init() loads persisted blocked state for the given upload mode', () async {
+      SharedPreferences.setMockInitialValues({
+        'account_blocked_production': true,
+      });
+
+      final state = AccountBlockState();
+      await state.init(UploadMode.production);
+
+      expect(state.isBlocked, isTrue);
+    });
+
+    test('init() defaults to false when nothing is persisted', () async {
+      final state = AccountBlockState();
+      await state.init(UploadMode.production);
+
+      expect(state.isBlocked, isFalse);
+    });
+
+    test('init() is scoped per upload mode', () async {
+      SharedPreferences.setMockInitialValues({
+        'account_blocked_production': true,
+      });
+
+      final state = AccountBlockState();
+      await state.init(UploadMode.sandbox);
+
+      expect(state.isBlocked, isFalse);
+    });
+
+    test('check() updates and persists state on a conclusive true result', () async {
+      final client = MockClient((request) async => http.Response(
+            '{"user_blocks":[{"id":1}]}',
+            200,
+          ));
+      final state = AccountBlockState(blockService: OSMBlockService(client: client));
+      await state.init(UploadMode.production);
+
+      final result = await state.check(accessToken: 'token', uploadMode: UploadMode.production);
+
+      expect(result, isTrue);
+      expect(state.isBlocked, isTrue);
+
+      final prefs = await SharedPreferences.getInstance();
+      expect(prefs.getBool('account_blocked_production'), isTrue);
+    });
+
+    test('check() updates and persists state on a conclusive false result', () async {
+      SharedPreferences.setMockInitialValues({
+        'account_blocked_production': true,
+      });
+      final client = MockClient((request) async => http.Response('{"user_blocks":[]}', 200));
+      final state = AccountBlockState(blockService: OSMBlockService(client: client));
+      await state.init(UploadMode.production);
+      expect(state.isBlocked, isTrue);
+
+      final result = await state.check(accessToken: 'token', uploadMode: UploadMode.production);
+
+      expect(result, isFalse);
+      expect(state.isBlocked, isFalse);
+
+      final prefs = await SharedPreferences.getInstance();
+      expect(prefs.getBool('account_blocked_production'), isFalse);
+    });
+
+    test('check() leaves state unchanged on an inconclusive (null) result', () async {
+      SharedPreferences.setMockInitialValues({
+        'account_blocked_production': true,
+      });
+      final client = MockClient((request) async {
+        throw Exception('offline');
+      });
+      final state = AccountBlockState(blockService: OSMBlockService(client: client));
+      await state.init(UploadMode.production);
+      expect(state.isBlocked, isTrue);
+
+      final result = await state.check(accessToken: 'token', uploadMode: UploadMode.production);
+
+      expect(result, isNull);
+      expect(state.isBlocked, isTrue); // unchanged
+
+      final prefs = await SharedPreferences.getInstance();
+      expect(prefs.getBool('account_blocked_production'), isTrue); // unchanged
+    });
+
+    test('clear() resets in-memory blocked state', () async {
+      SharedPreferences.setMockInitialValues({
+        'account_blocked_production': true,
+      });
+      final state = AccountBlockState();
+      await state.init(UploadMode.production);
+      expect(state.isBlocked, isTrue);
+
+      state.clear();
+
+      expect(state.isBlocked, isFalse);
+    });
+  });
+}