Initial commit

test/utils.dart

@@ -0,0 +1,34 @@
+import 'dart:convert';
+import 'dart:math';
+
+import 'package:flutter/services.dart';
+import 'package:flutter_paperless_mobile/core/type/json.dart';
+
+Future<T> loadOne<T>(String filePath, T Function(JSON) transformFn, int? id) async {
+  if (id != null) {
+    final coll = await loadCollection(filePath, transformFn);
+    return coll.firstWhere((dynamic element) => element.id == id);
+  }
+  final String response = await rootBundle.loadString(filePath);
+  return transformFn(jsonDecode(response));
+}
+
+Future<List<T>> loadCollection<T>(String filePath, T Function(JSON) transformFn,
+    {int? numItems, List<int>? ids}) async {
+  assert(((numItems != null) ^ (ids != null)) || (numItems == null && ids == null));
+  final String response = await rootBundle.loadString(filePath);
+  final lst = (jsonDecode(response) as List<dynamic>);
+  final res = (jsonDecode(response) as List<dynamic>).map((e) => transformFn(e)).toList();
+  if (ids != null) {
+    return res.where((dynamic element) => ids.contains(element.id)).toList();
+  }
+  if (numItems != null && lst.length < numItems) {
+    throw Exception("The requested collection contains only ${lst.length} items!");
+  } else {
+    return res.sublist(0, numItems);
+  }
+}
+
+const _chars = 'AaBbCcDdEeFfGgHhIiJjKkLlMmNnOoPpQqRrSsTtUuVvWwXxYyZz1234567890';
+String getRandomString(int length) => String.fromCharCodes(
+    Iterable.generate(length, (_) => _chars.codeUnitAt(Random().nextInt(_chars.length))));