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Add the ability to control the URL cache. (#1020)
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72 changes: 72 additions & 0 deletions
72
pkgs/cupertino_http/example/integration_test/url_cache_test.dart
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,72 @@ | ||
| // Copyright (c) 2023, the Dart project authors. Please see the AUTHORS file | ||
| // for details. All rights reserved. Use of this source code is governed by a | ||
| // BSD-style license that can be found in the LICENSE file. | ||
|
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| import 'dart:async'; | ||
| import 'dart:io'; | ||
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| import 'package:cupertino_http/cupertino_http.dart'; | ||
| import 'package:integration_test/integration_test.dart'; | ||
| import 'package:test/test.dart'; | ||
|
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| void main() { | ||
| IntegrationTestWidgetsFlutterBinding.ensureInitialized(); | ||
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| group('dataTaskWithCompletionHandler', () { | ||
| late HttpServer server; | ||
| var uncachedRequestCount = 0; | ||
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| setUp(() async { | ||
| uncachedRequestCount = 0; | ||
| server = (await HttpServer.bind('localhost', 0)) | ||
| ..listen((request) async { | ||
| await request.drain<void>(); | ||
| if (request.headers['if-none-match']?.first == '1234') { | ||
| request.response.statusCode = 304; | ||
| await request.response.close(); | ||
| return; | ||
| } | ||
| ++uncachedRequestCount; | ||
| request.response.headers.set('Content-Type', 'text/plain'); | ||
| request.response.headers.set('ETag', '1234'); | ||
| request.response.write('Hello World'); | ||
| await request.response.close(); | ||
| }); | ||
| }); | ||
| tearDown(() { | ||
| server.close(); | ||
| }); | ||
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| Future<void> doRequest(URLSession session) { | ||
| final request = | ||
| URLRequest.fromUrl(Uri.parse('http://localhost:${server.port}')); | ||
| final c = Completer<void>(); | ||
| session.dataTaskWithCompletionHandler(request, (d, r, e) { | ||
| c.complete(); | ||
| }).resume(); | ||
| return c.future; | ||
| } | ||
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| test('no cache', () async { | ||
| final config = URLSessionConfiguration.defaultSessionConfiguration() | ||
| ..cache = null; | ||
| final session = URLSession.sessionWithConfiguration(config); | ||
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| await doRequest(session); | ||
| await doRequest(session); | ||
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| expect(uncachedRequestCount, 2); | ||
| }); | ||
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| test('with cache', () async { | ||
| final config = URLSessionConfiguration.defaultSessionConfiguration() | ||
| ..cache = URLCache.withCapacity(memoryCapacity: 100000); | ||
| final session = URLSession.sessionWithConfiguration(config); | ||
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| await doRequest(session); | ||
| await doRequest(session); | ||
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| expect(uncachedRequestCount, 1); | ||
| }); | ||
| }); | ||
| } |
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