mirror of
https://github.com/flutter/flutter
synced 2024-10-13 19:52:53 +00:00
410 lines
13 KiB
Dart
410 lines
13 KiB
Dart
// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'dart:async';
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import 'dart:convert';
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import 'package:file/file.dart';
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import 'package:file/memory.dart';
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import 'package:flutter_tools/src/base/file_system.dart';
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import 'package:flutter_tools/src/base/io.dart' as io;
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import 'package:flutter_tools/src/base/logger.dart';
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import 'package:flutter_tools/src/base/net.dart';
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import 'package:flutter_tools/src/base/platform.dart';
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import 'package:flutter_tools/src/base/terminal.dart';
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import 'package:fake_async/fake_async.dart';
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import '../../src/common.dart';
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import '../../src/mocks.dart' show MockStdio;
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void main() {
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BufferLogger testLogger;
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setUp(() {
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testLogger = BufferLogger(
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terminal: AnsiTerminal(
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stdio: MockStdio(),
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platform: FakePlatform(stdoutSupportsAnsi: false),
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),
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outputPreferences: OutputPreferences.test(),
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);
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});
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Net createNet(io.HttpClient client) {
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return Net(
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httpClientFactory: () => client,
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logger: testLogger,
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platform: FakePlatform(),
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);
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}
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group('successful fetch', () {
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const String responseString = 'response string';
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List<int> responseData;
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setUp(() {
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responseData = utf8.encode(responseString);
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});
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testWithoutContext('fetchUrl() gets the data', () async {
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final Net net = createNet(FakeHttpClient(200, data: responseString));
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final List<int> data = await net.fetchUrl(Uri.parse('http://example.invalid/'));
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expect(data, equals(responseData));
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});
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testWithoutContext('fetchUrl(destFile) writes the data to a file', () async {
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final Net net = createNet(FakeHttpClient(200, data: responseString));
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final MemoryFileSystem fs = MemoryFileSystem.test();
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final File destFile = fs.file('dest_file')..createSync();
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final List<int> data = await net.fetchUrl(
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Uri.parse('http://example.invalid/'),
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destFile: destFile,
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);
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expect(data, equals(<int>[]));
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expect(destFile.readAsStringSync(), equals(responseString));
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});
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});
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testWithoutContext('retry from 500', () async {
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final Net net = createNet(FakeHttpClient(500));
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String error;
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FakeAsync().run((FakeAsync time) {
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net.fetchUrl(Uri.parse('http://example.invalid/')).then((List<int> value) {
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error = 'test completed unexpectedly';
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}, onError: (dynamic exception) {
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error = 'test failed unexpectedly: $exception';
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});
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expect(testLogger.statusText, '');
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time.elapse(const Duration(milliseconds: 10000));
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expect(testLogger.statusText,
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'Download failed -- attempting retry 1 in 1 second...\n'
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'Download failed -- attempting retry 2 in 2 seconds...\n'
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'Download failed -- attempting retry 3 in 4 seconds...\n'
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'Download failed -- attempting retry 4 in 8 seconds...\n',
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);
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});
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expect(testLogger.errorText, isEmpty);
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expect(error, isNull);
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});
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testWithoutContext('retry from network error', () async {
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final Net net = createNet(FakeHttpClient(200));
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String error;
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FakeAsync().run((FakeAsync time) {
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net.fetchUrl(Uri.parse('http://example.invalid/')).then((List<int> value) {
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error = 'test completed unexpectedly';
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}, onError: (dynamic exception) {
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error = 'test failed unexpectedly: $exception';
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});
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expect(testLogger.statusText, '');
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time.elapse(const Duration(milliseconds: 10000));
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expect(testLogger.statusText,
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'Download failed -- attempting retry 1 in 1 second...\n'
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'Download failed -- attempting retry 2 in 2 seconds...\n'
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'Download failed -- attempting retry 3 in 4 seconds...\n'
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'Download failed -- attempting retry 4 in 8 seconds...\n',
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);
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});
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expect(testLogger.errorText, isEmpty);
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expect(error, isNull);
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});
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testWithoutContext('retry from SocketException', () async {
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final Net net = createNet(FakeHttpClientThrowing(
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const io.SocketException('test exception handling'),
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));
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String error;
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FakeAsync().run((FakeAsync time) {
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net.fetchUrl(Uri.parse('http://example.invalid/')).then((List<int> value) {
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error = 'test completed unexpectedly';
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}, onError: (dynamic exception) {
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error = 'test failed unexpectedly: $exception';
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});
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expect(testLogger.statusText, '');
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time.elapse(const Duration(milliseconds: 10000));
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expect(testLogger.statusText,
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'Download failed -- attempting retry 1 in 1 second...\n'
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'Download failed -- attempting retry 2 in 2 seconds...\n'
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'Download failed -- attempting retry 3 in 4 seconds...\n'
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'Download failed -- attempting retry 4 in 8 seconds...\n',
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);
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});
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expect(testLogger.errorText, isEmpty);
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expect(error, isNull);
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expect(testLogger.traceText, contains('Download error: SocketException'));
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});
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testWithoutContext('no retry from HandshakeException', () async {
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final Net net = createNet(FakeHttpClientThrowing(
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const io.HandshakeException('test exception handling'),
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));
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String error;
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FakeAsync().run((FakeAsync time) {
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net.fetchUrl(Uri.parse('http://example.invalid/')).then((List<int> value) {
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error = 'test completed unexpectedly';
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}, onError: (dynamic exception) {
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error = 'test failed: $exception';
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});
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expect(testLogger.statusText, '');
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time.elapse(const Duration(milliseconds: 10000));
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expect(testLogger.statusText, '');
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});
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expect(error, startsWith('test failed'));
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expect(testLogger.traceText, contains('HandshakeException'));
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});
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testWithoutContext('check for bad override on ArgumentError', () async {
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final Net net = Net(
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httpClientFactory: () => FakeHttpClientThrowing(
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ArgumentError('test exception handling'),
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),
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logger: testLogger,
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platform: FakePlatform(
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environment: <String, String>{
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'FLUTTER_STORAGE_BASE_URL': 'example.invalid',
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},
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),
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);
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String error;
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FakeAsync().run((FakeAsync time) {
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net.fetchUrl(Uri.parse('example.invalid/')).then((List<int> value) {
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error = 'test completed unexpectedly';
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}, onError: (dynamic exception) {
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error = 'test failed: $exception';
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});
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expect(testLogger.statusText, '');
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time.elapse(const Duration(milliseconds: 10000));
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expect(testLogger.statusText, '');
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});
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expect(error, startsWith('test failed'));
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expect(testLogger.errorText, contains('Invalid argument'));
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expect(error, contains('FLUTTER_STORAGE_BASE_URL'));
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});
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testWithoutContext('retry from HttpException', () async {
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final Net net = createNet(FakeHttpClientThrowing(
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const io.HttpException('test exception handling'),
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));
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String error;
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FakeAsync().run((FakeAsync time) {
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net.fetchUrl(Uri.parse('http://example.invalid/')).then((List<int> value) {
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error = 'test completed unexpectedly';
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}, onError: (dynamic exception) {
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error = 'test failed unexpectedly: $exception';
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});
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expect(testLogger.statusText, '');
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time.elapse(const Duration(milliseconds: 10000));
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expect(testLogger.statusText,
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'Download failed -- attempting retry 1 in 1 second...\n'
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'Download failed -- attempting retry 2 in 2 seconds...\n'
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'Download failed -- attempting retry 3 in 4 seconds...\n'
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'Download failed -- attempting retry 4 in 8 seconds...\n',
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);
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});
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expect(testLogger.errorText, isEmpty);
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expect(error, isNull);
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expect(testLogger.traceText, contains('Download error: HttpException'));
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});
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testWithoutContext('retry from HttpException when request throws', () async {
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final Net net = createNet(FakeHttpClientThrowingRequest(
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const io.HttpException('test exception handling'),
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));
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String error;
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FakeAsync().run((FakeAsync time) {
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net.fetchUrl(Uri.parse('http://example.invalid/')).then((List<int> value) {
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error = 'test completed unexpectedly';
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}, onError: (dynamic exception) {
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error = 'test failed unexpectedly: $exception';
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});
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expect(testLogger.statusText, '');
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time.elapse(const Duration(milliseconds: 10000));
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expect(testLogger.statusText,
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'Download failed -- attempting retry 1 in 1 second...\n'
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'Download failed -- attempting retry 2 in 2 seconds...\n'
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'Download failed -- attempting retry 3 in 4 seconds...\n'
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'Download failed -- attempting retry 4 in 8 seconds...\n',
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);
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});
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expect(testLogger.errorText, isEmpty);
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expect(error, isNull);
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expect(testLogger.traceText, contains('Download error: HttpException'));
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});
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testWithoutContext('max attempts', () async {
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final Net net = createNet(FakeHttpClient(500));
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String error;
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List<int> actualResult;
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FakeAsync().run((FakeAsync time) {
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net.fetchUrl(Uri.parse('http://example.invalid/'), maxAttempts: 3).then((List<int> value) {
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actualResult = value;
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}, onError: (dynamic exception) {
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error = 'test failed unexpectedly: $exception';
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});
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expect(testLogger.statusText, '');
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time.elapse(const Duration(milliseconds: 10000));
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expect(testLogger.statusText,
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'Download failed -- attempting retry 1 in 1 second...\n'
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'Download failed -- attempting retry 2 in 2 seconds...\n'
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'Download failed -- retry 3\n',
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);
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});
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expect(testLogger.errorText, isEmpty);
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expect(error, isNull);
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expect(actualResult, isNull);
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});
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testWithoutContext('remote file non-existant', () async {
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final Net net = createNet(FakeHttpClient(404));
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final Uri invalid = Uri.parse('http://example.invalid/');
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final bool result = await net.doesRemoteFileExist(invalid);
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expect(result, false);
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});
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testWithoutContext('remote file server error', () async {
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final Net net = createNet(FakeHttpClient(500));
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final Uri valid = Uri.parse('http://example.valid/');
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final bool result = await net.doesRemoteFileExist(valid);
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expect(result, false);
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});
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testWithoutContext('remote file exists', () async {
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final Net net = createNet(FakeHttpClient(200));
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final Uri valid = Uri.parse('http://example.valid/');
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final bool result = await net.doesRemoteFileExist(valid);
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expect(result, true);
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});
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}
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class FakeHttpClientThrowing implements io.HttpClient {
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FakeHttpClientThrowing(this.exception);
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final Object exception;
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@override
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Future<io.HttpClientRequest> getUrl(Uri url) async {
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throw exception;
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}
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@override
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dynamic noSuchMethod(Invocation invocation) {
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throw 'io.HttpClient - $invocation';
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}
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}
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class FakeHttpClient implements io.HttpClient {
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FakeHttpClient(this.statusCode, { this.data });
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final int statusCode;
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final String data;
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@override
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Future<io.HttpClientRequest> getUrl(Uri url) async {
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return FakeHttpClientRequest(statusCode, data: data);
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}
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@override
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Future<io.HttpClientRequest> headUrl(Uri url) async {
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return FakeHttpClientRequest(statusCode);
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}
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@override
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dynamic noSuchMethod(Invocation invocation) {
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throw 'io.HttpClient - $invocation';
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}
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}
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class FakeHttpClientThrowingRequest implements io.HttpClient {
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FakeHttpClientThrowingRequest(this.exception);
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final Object exception;
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@override
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Future<io.HttpClientRequest> getUrl(Uri url) async {
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return FakeHttpClientRequestThrowing(exception);
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}
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@override
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dynamic noSuchMethod(Invocation invocation) {
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throw 'io.HttpClient - $invocation';
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}
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}
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class FakeHttpClientRequest implements io.HttpClientRequest {
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FakeHttpClientRequest(this.statusCode, { this.data });
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final int statusCode;
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final String data;
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@override
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Future<io.HttpClientResponse> close() async {
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return FakeHttpClientResponse(statusCode, data: data);
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}
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@override
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dynamic noSuchMethod(Invocation invocation) {
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throw 'io.HttpClientRequest - $invocation';
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}
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}
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class FakeHttpClientRequestThrowing implements io.HttpClientRequest {
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FakeHttpClientRequestThrowing(this.exception);
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final Object exception;
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@override
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Future<io.HttpClientResponse> close() async {
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throw exception;
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}
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@override
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dynamic noSuchMethod(Invocation invocation) {
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throw 'io.HttpClientRequest - $invocation';
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}
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}
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class FakeHttpClientResponse implements io.HttpClientResponse {
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FakeHttpClientResponse(this.statusCode, { this.data });
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@override
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final int statusCode;
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final String data;
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@override
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String get reasonPhrase => '<reason phrase>';
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@override
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StreamSubscription<List<int>> listen(
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void onData(List<int> event), {
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Function onError,
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void onDone(),
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bool cancelOnError,
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}) {
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if (data == null) {
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return Stream<List<int>>.fromFuture(Future<List<int>>.error(
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const io.SocketException('test'),
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)).listen(onData, onError: onError, onDone: onDone, cancelOnError: cancelOnError);
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} else {
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return Stream<List<int>>.fromFuture(Future<List<int>>.value(
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utf8.encode(data),
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)).listen(onData, onError: onError, onDone: onDone, cancelOnError: cancelOnError);
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}
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}
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@override
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Future<dynamic> forEach(void Function(List<int> element) action) async {
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if (data == null) {
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return Future<void>.error(const io.SocketException('test'));
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} else {
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return Future<void>.microtask(() => action(utf8.encode(data)));
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}
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}
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@override
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dynamic noSuchMethod(Invocation invocation) {
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throw 'io.HttpClientResponse - $invocation';
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}
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}
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