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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.
// @dart = 2.8
import 'dart:async';
import 'package:flutter_tools/src/android/android_workflow.dart';
import 'package:flutter_tools/src/base/bot_detector.dart';
import 'package:flutter_tools/src/base/config.dart';
import 'package:flutter_tools/src/base/context.dart';
import 'package:flutter_tools/src/base/file_system.dart';
import 'package:flutter_tools/src/base/io.dart';
import 'package:flutter_tools/src/base/logger.dart';
import 'package:flutter_tools/src/base/os.dart';
import 'package:flutter_tools/src/base/process.dart';
import 'package:flutter_tools/src/base/signals.dart';
import 'package:flutter_tools/src/base/template.dart';
import 'package:flutter_tools/src/base/terminal.dart';
import 'package:flutter_tools/src/base/version.dart';
import 'package:flutter_tools/src/cache.dart';
import 'package:flutter_tools/src/context_runner.dart';
import 'package:flutter_tools/src/dart/pub.dart';
import 'package:flutter_tools/src/device.dart';
import 'package:flutter_tools/src/doctor.dart';
import 'package:flutter_tools/src/doctor_validator.dart';
import 'package:flutter_tools/src/globals_null_migrated.dart' as globals;
import 'package:flutter_tools/src/ios/plist_parser.dart';
import 'package:flutter_tools/src/ios/simulators.dart';
import 'package:flutter_tools/src/ios/xcodeproj.dart';
import 'package:flutter_tools/src/isolated/mustache_template.dart';
import 'package:flutter_tools/src/persistent_tool_state.dart';
import 'package:flutter_tools/src/project.dart';
import 'package:flutter_tools/src/reporting/crash_reporting.dart';
import 'package:flutter_tools/src/reporting/reporting.dart';
import 'package:flutter_tools/src/version.dart';
import 'package:meta/meta.dart';
import 'common.dart';
import 'fake_http_client.dart';
import 'fake_process_manager.dart';
import 'fakes.dart';
import 'throwing_pub.dart';
export 'package:flutter_tools/src/base/context.dart' show Generator;
export 'fake_process_manager.dart' show ProcessManager, FakeProcessManager, FakeCommand;
/// Return the test logger. This assumes that the current Logger is a BufferLogger.
BufferLogger get testLogger => context.get<Logger>() as BufferLogger;
FakeDeviceManager get testDeviceManager => context.get<DeviceManager>() as FakeDeviceManager;
FakeDoctor get testDoctor => context.get<Doctor>() as FakeDoctor;
typedef ContextInitializer = void Function(AppContext testContext);
@isTest
void testUsingContext(
String description,
dynamic Function() testMethod, {
Map<Type, Generator> overrides = const <Type, Generator>{},
bool initializeFlutterRoot = true,
String testOn,
Timeout timeout,
bool skip, // should default to `false`, but https://github.com/dart-lang/test/issues/545 doesn't allow this
}) {
if (overrides[FileSystem] != null && overrides[ProcessManager] == null) {
throw StateError(
'If you override the FileSystem context you must also provide a ProcessManager, '
'otherwise the processes you launch will not be dealing with the same file system '
'that you are dealing with in your test.'
);
}
if (overrides.containsKey(ProcessUtils)) {
throw StateError('Do not inject ProcessUtils for testing, use ProcessManager instead.');
}
// Ensure we don't rely on the default [Config] constructor which will
// leak a sticky $HOME/.flutter_settings behind!
Directory configDir;
tearDown(() {
if (configDir != null) {
tryToDelete(configDir);
configDir = null;
}
});
Config buildConfig(FileSystem fs) {
configDir ??= globals.fs.systemTempDirectory.createTempSync('flutter_config_dir_test.');
return Config.test(
name: Config.kFlutterSettings,
directory: configDir,
logger: globals.logger,
);
}
PersistentToolState buildPersistentToolState(FileSystem fs) {
configDir ??= globals.fs.systemTempDirectory.createTempSync('flutter_config_dir_test.');
return PersistentToolState.test(
directory: configDir,
logger: globals.logger,
);
}
test(description, () async {
await runInContext<dynamic>(() {
return context.run<dynamic>(
name: 'mocks',
overrides: <Type, Generator>{
AnsiTerminal: () => AnsiTerminal(platform: globals.platform, stdio: globals.stdio),
Config: () => buildConfig(globals.fs),
DeviceManager: () => FakeDeviceManager(),
Doctor: () => FakeDoctor(globals.logger),
FlutterVersion: () => FakeFlutterVersion(),
HttpClient: () => FakeHttpClient.any(),
IOSSimulatorUtils: () => const NoopIOSSimulatorUtils(),
OutputPreferences: () => OutputPreferences.test(),
Logger: () => BufferLogger(
terminal: globals.terminal,
outputPreferences: globals.outputPreferences,
),
OperatingSystemUtils: () => FakeOperatingSystemUtils(),
PersistentToolState: () => buildPersistentToolState(globals.fs),
Usage: () => TestUsage(),
XcodeProjectInterpreter: () => FakeXcodeProjectInterpreter(),
FileSystem: () => LocalFileSystemBlockingSetCurrentDirectory(),
PlistParser: () => FakePlistParser(),
Signals: () => FakeSignals(),
Pub: () => ThrowingPub(), // prevent accidentally using pub.
CrashReporter: () => const NoopCrashReporter(),
TemplateRenderer: () => const MustacheTemplateRenderer(),
},
body: () {
final String flutterRoot = getFlutterRoot();
return runZoned<Future<dynamic>>(() {
try {
return context.run<dynamic>(
// Apply the overrides to the test context in the zone since their
// instantiation may reference items already stored on the context.
overrides: overrides,
name: 'test-specific overrides',
body: () async {
if (initializeFlutterRoot) {
// Provide a sane default for the flutterRoot directory. Individual
// tests can override this either in the test or during setup.
Cache.flutterRoot ??= flutterRoot;
}
return await testMethod();
},
);
// This catch rethrows, so doesn't need to catch only Exception.
} catch (error) { // ignore: avoid_catches_without_on_clauses
_printBufferedErrors(context);
rethrow;
}
}, onError: (Object error, StackTrace stackTrace) { // ignore: deprecated_member_use
print(error);
print(stackTrace);
_printBufferedErrors(context);
throw error;
});
},
);
}, overrides: <Type, Generator>{
// This has to go here so that runInContext will pick it up when it tries
// to do bot detection before running the closure. This is important
// because the test may be giving us a fake HttpClientFactory, which may
// throw in unexpected/abnormal ways.
// If a test needs a BotDetector that does not always return true, it
// can provide the AlwaysFalseBotDetector in the overrides, or its own
// BotDetector implementation in the overrides.
BotDetector: overrides[BotDetector] ?? () => const FakeBotDetector(true),
});
}, testOn: testOn, skip: skip, timeout: timeout);
}
void _printBufferedErrors(AppContext testContext) {
if (testContext.get<Logger>() is BufferLogger) {
final BufferLogger bufferLogger = testContext.get<Logger>() as BufferLogger;
if (bufferLogger.errorText.isNotEmpty) {
print(bufferLogger.errorText);
}
bufferLogger.clear();
}
}
class FakeDeviceManager implements DeviceManager {
List<Device> devices = <Device>[];
String _specifiedDeviceId;
@override
String get specifiedDeviceId {
if (_specifiedDeviceId == null || _specifiedDeviceId == 'all') {
return null;
}
return _specifiedDeviceId;
}
@override
set specifiedDeviceId(String id) {
_specifiedDeviceId = id;
}
@override
bool get hasSpecifiedDeviceId => specifiedDeviceId != null;
@override
bool get hasSpecifiedAllDevices {
return _specifiedDeviceId != null && _specifiedDeviceId == 'all';
}
@override
Future<List<Device>> getAllConnectedDevices() async => devices;
@override
Future<List<Device>> refreshAllConnectedDevices({ Duration timeout }) async => devices;
@override
Future<List<Device>> getDevicesById(String deviceId) async {
return devices.where((Device device) => device.id == deviceId).toList();
}
@override
Future<List<Device>> getDevices() {
return hasSpecifiedDeviceId
? getDevicesById(specifiedDeviceId)
: getAllConnectedDevices();
}
void addDevice(Device device) => devices.add(device);
@override
bool get canListAnything => true;
@override
Future<List<String>> getDeviceDiagnostics() async => <String>[];
@override
List<DeviceDiscovery> get deviceDiscoverers => <DeviceDiscovery>[];
@override
bool isDeviceSupportedForProject(Device device, FlutterProject flutterProject) {
return device.isSupportedForProject(flutterProject);
}
@override
Future<List<Device>> findTargetDevices(FlutterProject flutterProject, { Duration timeout }) async {
return devices;
}
}
class FakeAndroidLicenseValidator extends AndroidLicenseValidator {
@override
Future<LicensesAccepted> get licensesAccepted async => LicensesAccepted.all;
}
class FakeDoctor extends Doctor {
FakeDoctor(Logger logger) : super(logger: logger);
// True for testing.
@override
bool get canListAnything => true;
// True for testing.
@override
bool get canLaunchAnything => true;
@override
/// Replaces the android workflow with a version that overrides licensesAccepted,
/// to prevent individual tests from having to mock out the process for
/// the Doctor.
List<DoctorValidator> get validators {
final List<DoctorValidator> superValidators = super.validators;
return superValidators.map<DoctorValidator>((DoctorValidator v) {
if (v is AndroidLicenseValidator) {
return FakeAndroidLicenseValidator();
}
return v;
}).toList();
}
}
class NoopIOSSimulatorUtils implements IOSSimulatorUtils {
const NoopIOSSimulatorUtils();
@override
Future<List<IOSSimulator>> getAttachedDevices() async => <IOSSimulator>[];
}
class FakeXcodeProjectInterpreter implements XcodeProjectInterpreter {
@override
bool get isInstalled => true;
@override
String get versionText => 'Xcode 12.0.1';
@override
Version get version => Version(12, 0, 1);
@override
Future<Map<String, String>> getBuildSettings(
String projectPath, {
XcodeProjectBuildContext buildContext,
Duration timeout = const Duration(minutes: 1),
}) async {
return <String, String>{};
}
@override
Future<void> cleanWorkspace(String workspacePath, String scheme, { bool verbose = false }) {
return null;
}
@override
Future<XcodeProjectInfo> getInfo(String projectPath, {String projectFilename}) async {
return XcodeProjectInfo(
<String>['Runner'],
<String>['Debug', 'Release'],
<String>['Runner'],
BufferLogger.test(),
);
}
@override
List<String> xcrunCommand() => <String>['xcrun'];
}
/// Prevent test crashest from being reported to the crash backend.
class NoopCrashReporter implements CrashReporter {
const NoopCrashReporter();
@override
Future<void> informUser(CrashDetails details, File crashFile) async { }
}
class LocalFileSystemBlockingSetCurrentDirectory extends LocalFileSystem {
LocalFileSystemBlockingSetCurrentDirectory() : super.test(
signals: LocalSignals.instance,
);
@override
set currentDirectory(dynamic value) {
throw 'globals.fs.currentDirectory should not be set on the local file system during '
'tests as this can cause race conditions with concurrent tests. '
'Consider using a MemoryFileSystem for testing if possible or refactor '
'code to not require setting globals.fs.currentDirectory.';
}
}
class FakeSignals implements Signals {
@override
Object addHandler(ProcessSignal signal, SignalHandler handler) {
return null;
}
@override
Future<bool> removeHandler(ProcessSignal signal, Object token) async {
return true;
}
@override
Stream<Object> get errors => const Stream<Object>.empty();
}