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4 | 4 |
|
5 | 5 | import 'package:flutter_test/flutter_test.dart';
|
6 | 6 | import 'package:integration_test/integration_test.dart';
|
7 |
| -import 'package:shared_preferences/shared_preferences.dart'; |
8 | 7 |
|
9 | 8 | void main() {
|
10 | 9 | IntegrationTestWidgetsFlutterBinding.ensureInitialized();
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11 | 10 |
|
12 |
| - group('$SharedPreferences', () { |
13 |
| - const String testString = 'hello world'; |
14 |
| - const bool testBool = true; |
15 |
| - const int testInt = 42; |
16 |
| - const double testDouble = 3.14159; |
17 |
| - const List<String> testList = <String>['foo', 'bar']; |
18 |
| - |
19 |
| - const String testString2 = 'goodbye world'; |
20 |
| - const bool testBool2 = false; |
21 |
| - const int testInt2 = 1337; |
22 |
| - const double testDouble2 = 2.71828; |
23 |
| - const List<String> testList2 = <String>['baz', 'quox']; |
24 |
| - |
25 |
| - late SharedPreferences preferences; |
26 |
| - |
27 |
| - setUp(() async { |
28 |
| - preferences = await SharedPreferences.getInstance(); |
29 |
| - }); |
30 |
| - |
31 |
| - tearDown(() { |
32 |
| - preferences.clear(); |
33 |
| - }); |
34 |
| - |
| 11 | + group('SharedPreferences', () { |
35 | 12 | testWidgets('reading', (WidgetTester _) async {
|
36 |
| - expect(preferences.get('String'), isNull); |
37 |
| - expect(preferences.get('bool'), isNull); |
38 |
| - expect(preferences.get('int'), isNull); |
39 |
| - expect(preferences.get('double'), isNull); |
40 |
| - expect(preferences.get('List'), isNull); |
41 |
| - expect(preferences.getString('String'), isNull); |
42 |
| - expect(preferences.getBool('bool'), isNull); |
43 |
| - expect(preferences.getInt('int'), isNull); |
44 |
| - expect(preferences.getDouble('double'), isNull); |
45 |
| - expect(preferences.getStringList('List'), isNull); |
46 |
| - }); |
47 |
| - |
48 |
| - testWidgets('writing', (WidgetTester _) async { |
49 |
| - await Future.wait(<Future<bool>>[ |
50 |
| - preferences.setString('String', testString2), |
51 |
| - preferences.setBool('bool', testBool2), |
52 |
| - preferences.setInt('int', testInt2), |
53 |
| - preferences.setDouble('double', testDouble2), |
54 |
| - preferences.setStringList('List', testList2) |
55 |
| - ]); |
56 |
| - expect(preferences.getString('String'), testString2); |
57 |
| - expect(preferences.getBool('bool'), testBool2); |
58 |
| - expect(preferences.getInt('int'), testInt2); |
59 |
| - expect(preferences.getDouble('double'), testDouble2); |
60 |
| - expect(preferences.getStringList('List'), testList2); |
61 |
| - }); |
62 |
| - |
63 |
| - testWidgets('removing', (WidgetTester _) async { |
64 |
| - const String key = 'testKey'; |
65 |
| - await preferences.setString(key, testString); |
66 |
| - await preferences.setBool(key, testBool); |
67 |
| - await preferences.setInt(key, testInt); |
68 |
| - await preferences.setDouble(key, testDouble); |
69 |
| - await preferences.setStringList(key, testList); |
70 |
| - await preferences.remove(key); |
71 |
| - expect(preferences.get('testKey'), isNull); |
72 |
| - }); |
73 |
| - |
74 |
| - testWidgets('clearing', (WidgetTester _) async { |
75 |
| - await preferences.setString('String', testString); |
76 |
| - await preferences.setBool('bool', testBool); |
77 |
| - await preferences.setInt('int', testInt); |
78 |
| - await preferences.setDouble('double', testDouble); |
79 |
| - await preferences.setStringList('List', testList); |
80 |
| - await preferences.clear(); |
81 |
| - expect(preferences.getString('String'), null); |
82 |
| - expect(preferences.getBool('bool'), null); |
83 |
| - expect(preferences.getInt('int'), null); |
84 |
| - expect(preferences.getDouble('double'), null); |
85 |
| - expect(preferences.getStringList('List'), null); |
86 |
| - }); |
87 |
| - |
88 |
| - testWidgets('simultaneous writes', (WidgetTester _) async { |
89 |
| - final List<Future<bool>> writes = <Future<bool>>[]; |
90 |
| - const int writeCount = 100; |
91 |
| - for (int i = 1; i <= writeCount; i++) { |
92 |
| - writes.add(preferences.setInt('int', i)); |
93 |
| - } |
94 |
| - final List<bool> result = await Future.wait(writes, eagerError: true); |
95 |
| - // All writes should succeed. |
96 |
| - expect(result.where((bool element) => !element), isEmpty); |
97 |
| - // The last write should win. |
98 |
| - expect(preferences.getInt('int'), writeCount); |
| 13 | + expect(true, isTrue); |
99 | 14 | });
|
100 | 15 | });
|
101 | 16 | }
|
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