Merge pull request #124 from yihong1120/sweep/add-unit-tests-report-service

[Sweep Rules] Add Unit Tests for New Business Logic in Report Service

Author: yihong1120

test/services/report_service_test.dart

@@ -34,6 +34,9 @@ void main() {
           license_plate: 'ABC123',
           violation: '紅線停車',
           status: 'Pending',
+            address: 'Main St and 1st Ave',
+            officer: 'Officer123',
+            mediaFiles: [], // Assuming no media files for simplicity
           address: 'Main St and 1st Ave',
           officer: 'Officer123',
           mediaFiles: [], // Assuming no media files for simplicity
@@ -66,19 +69,16 @@ void main() {
                 ]),
                 200));
 
-        expect(await service.getReports(), isA<List<TrafficViolation>>());
+        expect(await service.getReports(), equals(<TrafficViolation>[]);
       },
     );
 
     test(
-      'getViolation should return a TrafficViolation when the http call completes successfully',
+      'getViolation should throw an exception when the http call is unsuccessful',
       () async {
         const int recordId = 1;
-        when(client.get(isA<Uri>() as Uri))
-            .thenAnswer((_) async => http.Response(
-                jsonEncode({
-                  'id': recordId,
-                  'title': 'Parking Violation',
+        final response404 = http.Response('', 404);
+        when(client.get(isA<Uri>())).thenAnswer((_) async => response404);
                   'date': '2024-01-15',
                   'time': '14:00',
                   'licensePlate': 'ABC123',