chore(llc): add more tests

packages/stream_chat/test/src/core/api/requests_test.dart

@@ -26,6 +26,53 @@ void main() {
           }
         },
       );
+
+      test('copyWith', () {
+        final params = PaginationParams(
+          offset: 10,
+          limit: 20,
+          createdAtAfter: DateTime.now(),
+          createdAtAfterOrEqual: DateTime.now(),
+          createdAtAround: DateTime.now(),
+          createdAtBefore: DateTime.now(),
+          createdAtBeforeOrEqual: DateTime.now(),
+          greaterThan: 'greater-than',
+          greaterThanOrEqual: 'greater-than-or-equal',
+          lessThan: 'less-than',
+          lessThanOrEqual: 'less-than-or-equal',
+          idAround: 'id-around',
+        );
+
+        final newDateTime = DateTime.now().add(const Duration(days: 2));
+        const newTestString = 'test';
+        final newParams = params.copyWith(
+          limit: 2,
+          offset: 2,
+          createdAtAfter: newDateTime,
+          createdAtAfterOrEqual: newDateTime,
+          createdAtAround: newDateTime,
+          createdAtBefore: newDateTime,
+          createdAtBeforeOrEqual: newDateTime,
+          greaterThan: newTestString,
+          greaterThanOrEqual: newTestString,
+          lessThan: newTestString,
+          lessThanOrEqual: newTestString,
+          idAround: newTestString,
+        );
+
+        expect(newParams.limit, 2);
+        expect(newParams.offset, 2);
+        expect(newParams.createdAtAfter, newDateTime);
+        expect(newParams.createdAtAfterOrEqual, newDateTime);
+        expect(newParams.createdAtAround, newDateTime);
+        expect(newParams.createdAtBefore, newDateTime);
+        expect(newParams.createdAtBeforeOrEqual, newDateTime);
+        expect(newParams.greaterThan, newTestString);
+        expect(newParams.greaterThanOrEqual, newTestString);
+        expect(newParams.lessThan, newTestString);
+        expect(newParams.lessThanOrEqual, newTestString);
+        expect(newParams.idAround, newTestString);
+      });
     });
   });
 }