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// Copyright 2014 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'dart:async';
import 'package:flutter_tools/src/base/io.dart';
import 'package:flutter_tools/src/mdns_discovery.dart';
import 'package:mockito/mockito.dart';
import 'package:multicast_dns/multicast_dns.dart';
import '../src/common.dart';
import '../src/context.dart';
import '../src/mocks.dart';
void main() {
group('mDNS Discovery', () {
final int year3000 = DateTime(3000).millisecondsSinceEpoch;
setUp(() {
setNetworkInterfaceLister(
({
bool includeLoopback,
bool includeLinkLocal,
InternetAddressType type,
}) async => <NetworkInterface>[],
);
});
tearDown(() {
resetNetworkInterfaceLister();
});
MDnsClient getMockClient(
List<PtrResourceRecord> ptrRecords,
Map<String, List<SrvResourceRecord>> srvResponse, {
Map<String, List<TxtResourceRecord>> txtResponse = const <String, List<TxtResourceRecord>>{},
}) {
final MDnsClient client = MockMDnsClient();
when(client.lookup<PtrResourceRecord>(
ResourceRecordQuery.serverPointer(MDnsObservatoryDiscovery.dartObservatoryName),
)).thenAnswer((_) => Stream<PtrResourceRecord>.fromIterable(ptrRecords));
for (final MapEntry<String, List<SrvResourceRecord>> entry in srvResponse.entries) {
when(client.lookup<SrvResourceRecord>(
ResourceRecordQuery.service(entry.key),
)).thenAnswer((_) => Stream<SrvResourceRecord>.fromIterable(entry.value));
}
for (final MapEntry<String, List<TxtResourceRecord>> entry in txtResponse.entries) {
when(client.lookup<TxtResourceRecord>(
ResourceRecordQuery.text(entry.key),
)).thenAnswer((_) => Stream<TxtResourceRecord>.fromIterable(entry.value));
}
return client;
}
testUsingContext('No ports available', () async {
final MDnsClient client = getMockClient(<PtrResourceRecord>[], <String, List<SrvResourceRecord>>{});
final MDnsObservatoryDiscovery portDiscovery = MDnsObservatoryDiscovery(mdnsClient: client);
final int port = (await portDiscovery.query())?.port;
expect(port, isNull);
});
testUsingContext('Prints helpful message when there is no ipv4 link local address.', () async {
final MDnsClient client = getMockClient(<PtrResourceRecord>[], <String, List<SrvResourceRecord>>{});
final MDnsObservatoryDiscovery portDiscovery = MDnsObservatoryDiscovery(mdnsClient: client);
final Uri uri = await portDiscovery.getObservatoryUri(
'',
MockIOSDevice(),
);
expect(uri, isNull);
expect(testLogger.errorText, contains('Personal Hotspot'));
});
testUsingContext('One port available, no appId', () async {
final MDnsClient client = getMockClient(
<PtrResourceRecord>[
PtrResourceRecord('foo', year3000, domainName: 'bar'),
],
<String, List<SrvResourceRecord>>{
'bar': <SrvResourceRecord>[
SrvResourceRecord('bar', year3000, port: 123, weight: 1, priority: 1, target: 'appId'),
],
},
);
final MDnsObservatoryDiscovery portDiscovery = MDnsObservatoryDiscovery(mdnsClient: client);
final int port = (await portDiscovery.query())?.port;
expect(port, 123);
});
testUsingContext('One port available, no appId, with authCode', () async {
final MDnsClient client = getMockClient(
<PtrResourceRecord>[
PtrResourceRecord('foo', year3000, domainName: 'bar'),
],
<String, List<SrvResourceRecord>>{
'bar': <SrvResourceRecord>[
SrvResourceRecord('bar', year3000, port: 123, weight: 1, priority: 1, target: 'appId'),
],
},
txtResponse: <String, List<TxtResourceRecord>>{
'bar': <TxtResourceRecord>[
TxtResourceRecord('bar', year3000, text: 'authCode=xyz\n'),
],
},
);
final MDnsObservatoryDiscovery portDiscovery = MDnsObservatoryDiscovery(
mdnsClient: client,
);
final MDnsObservatoryDiscoveryResult result = await portDiscovery.query();
expect(result?.port, 123);
expect(result?.authCode, 'xyz/');
});
testUsingContext('Multiple ports available, without appId', () async {
final MDnsClient client = getMockClient(
<PtrResourceRecord>[
PtrResourceRecord('foo', year3000, domainName: 'bar'),
PtrResourceRecord('baz', year3000, domainName: 'fiz'),
],
<String, List<SrvResourceRecord>>{
'bar': <SrvResourceRecord>[
SrvResourceRecord('bar', year3000, port: 123, weight: 1, priority: 1, target: 'appId'),
],
'fiz': <SrvResourceRecord>[
SrvResourceRecord('fiz', year3000, port: 321, weight: 1, priority: 1, target: 'local'),
],
},
);
final MDnsObservatoryDiscovery portDiscovery = MDnsObservatoryDiscovery(mdnsClient: client);
expect(() => portDiscovery.query(), throwsToolExit());
});
testUsingContext('Multiple ports available, with appId', () async {
final MDnsClient client = getMockClient(
<PtrResourceRecord>[
PtrResourceRecord('foo', year3000, domainName: 'bar'),
PtrResourceRecord('baz', year3000, domainName: 'fiz'),
],
<String, List<SrvResourceRecord>>{
'bar': <SrvResourceRecord>[
SrvResourceRecord('bar', year3000, port: 123, weight: 1, priority: 1, target: 'appId'),
],
'fiz': <SrvResourceRecord>[
SrvResourceRecord('fiz', year3000, port: 321, weight: 1, priority: 1, target: 'local'),
],
},
);
final MDnsObservatoryDiscovery portDiscovery = MDnsObservatoryDiscovery(mdnsClient: client);
final int port = (await portDiscovery.query(applicationId: 'fiz'))?.port;
expect(port, 321);
});
testUsingContext('Multiple ports available per process, with appId', () async {
final MDnsClient client = getMockClient(
<PtrResourceRecord>[
PtrResourceRecord('foo', year3000, domainName: 'bar'),
PtrResourceRecord('baz', year3000, domainName: 'fiz'),
],
<String, List<SrvResourceRecord>>{
'bar': <SrvResourceRecord>[
SrvResourceRecord('bar', year3000, port: 1234, weight: 1, priority: 1, target: 'appId'),
SrvResourceRecord('bar', year3000, port: 123, weight: 1, priority: 1, target: 'appId'),
],
'fiz': <SrvResourceRecord>[
SrvResourceRecord('fiz', year3000, port: 4321, weight: 1, priority: 1, target: 'local'),
SrvResourceRecord('fiz', year3000, port: 321, weight: 1, priority: 1, target: 'local'),
],
},
);
final MDnsObservatoryDiscovery portDiscovery = MDnsObservatoryDiscovery(mdnsClient: client);
final int port = (await portDiscovery.query(applicationId: 'bar'))?.port;
expect(port, 1234);
});
testUsingContext('Query returns null', () async {
final MDnsClient client = getMockClient(
<PtrResourceRecord>[],
<String, List<SrvResourceRecord>>{},
);
final MDnsObservatoryDiscovery portDiscovery = MDnsObservatoryDiscovery(mdnsClient: client);
final int port = (await portDiscovery.query(applicationId: 'bar'))?.port;
expect(port, isNull);
});
testUsingContext('Throws SocketException when client throws OSError on start', () async {
final MDnsClient client = MockMDnsClient();
when(client.start()).thenAnswer((_) {
throw const OSError('Operation not suppoted on socket', 102);
});
final MDnsObservatoryDiscovery portDiscovery = MDnsObservatoryDiscovery(
mdnsClient: client,
);
expect(
() async => await portDiscovery.query(),
throwsA(isA<SocketException>()),
);
});
});
}
class MockMDnsClient extends Mock implements MDnsClient {}