blob: 833e83bbfb2ea94b74516350bdd66a669cab5b74 [file] [edit]
// Copyright (c) 2019, 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.
// @skip_package_deps_validation
import 'dart:async';
import 'dart:convert';
import 'dart:io';
import 'package:build_daemon/client.dart';
import 'package:build_daemon/data/build_status.dart';
import 'package:build_daemon/data/build_target.dart';
import 'package:dwds/asset_reader.dart';
import 'package:dwds/dart_web_debug_service.dart';
import 'package:dwds/src/connections/app_connection.dart';
import 'package:dwds/src/connections/debug_connection.dart';
import 'package:dwds/src/debugging/webkit_debugger.dart';
import 'package:dwds/src/loaders/build_runner_strategy_provider.dart';
import 'package:dwds/src/loaders/frontend_server_strategy_provider.dart';
import 'package:dwds/src/loaders/strategy.dart';
import 'package:dwds/src/readers/proxy_server_asset_reader.dart';
import 'package:dwds/src/services/chrome/chrome_proxy_service.dart';
import 'package:dwds/src/services/expression_compiler.dart';
import 'package:dwds/src/services/expression_compiler_service.dart';
import 'package:dwds/src/utilities/dart_uri.dart';
import 'package:dwds/src/utilities/server.dart';
import 'package:dwds_test_common/logging.dart';
import 'package:dwds_test_common/test_sdk_configuration.dart';
import 'package:dwds_test_common/utilities.dart';
import 'package:file/local.dart';
import 'package:http/http.dart';
import 'package:http/io_client.dart';
import 'package:logging/logging.dart' as logging;
import 'package:path/path.dart' as p;
import 'package:shelf/shelf.dart' as shelf;
import 'package:shelf/shelf.dart';
import 'package:shelf_proxy/shelf_proxy.dart';
import 'package:test/test.dart';
import 'package:vm_service/vm_service.dart';
import 'package:vm_service/vm_service_io.dart';
import 'package:webdriver/async_io.dart';
import 'package:webkit_inspection_protocol/webkit_inspection_protocol.dart';
import '../../frontend_server_common/devfs.dart';
import '../../frontend_server_common/resident_runner.dart';
import 'project.dart';
import 'server.dart';
import 'utilities.dart';
final _exeExt = Platform.isWindows ? '.exe' : '';
const isRPCError = TypeMatcher<RPCError>();
const isSentinelException = TypeMatcher<SentinelException>();
final Matcher throwsRPCError = throwsA(isRPCError);
final Matcher throwsSentinelException = throwsA(isSentinelException);
Matcher isRPCErrorWithMessage(String message) => isA<RPCError>().having(
(RPCError e) => e.message,
'message',
contains(message),
);
Matcher throwsRPCErrorWithMessage(String message) =>
throwsA(isRPCErrorWithMessage(message));
Matcher isRPCErrorWithCode(int code) =>
isA<RPCError>().having((RPCError e) => e.code, 'code', equals(code));
Matcher throwsRPCErrorWithCode(int code) => throwsA(isRPCErrorWithCode(code));
enum CompilationMode {
buildDaemon(false, true, false),
frontendServer(true, false, false),
buildDaemonAndFrontendServer(true, true, true);
final bool usesFrontendServer;
final bool usesBuildDaemon;
final bool usesDdcModulesOnly;
const CompilationMode(
this.usesFrontendServer,
this.usesBuildDaemon,
this.usesDdcModulesOnly,
);
}
class TestContext {
final TestProject project;
final TestSdkConfigurationProvider sdkConfigurationProvider;
String get appUrl => _appUrl!;
late String? _appUrl;
WipConnection get tabConnection => _tabConnection!;
late WipConnection? _tabConnection;
TestServer get testServer => _testServer!;
TestServer? _testServer;
Dwds? get dwds => _testServer?.dwds;
BuildDaemonClient get daemonClient => _daemonClient!;
BuildDaemonClient? _daemonClient;
ResidentWebRunner get webRunner => _webRunner!;
ResidentWebRunner? _webRunner;
WebDriver get webDriver => _webDriver!;
WebDriver? _webDriver;
Process get chromeDriver => _chromeDriver!;
Process? _chromeDriver;
WebkitDebugger get webkitDebugger => _webkitDebugger!;
late WebkitDebugger? _webkitDebugger;
Handler get assetHandler => _assetHandler!;
late Handler? _assetHandler;
Client get client => _client!;
Client? _client;
ExpressionCompilerService? ddcService;
int get port => _port!;
late int? _port;
Directory get outputDir => _outputDir!;
Directory? _outputDir;
late WipConnection extensionConnection;
late AppConnection appConnection;
late DebugConnection debugConnection;
final _logger = logging.Logger('Context');
final _serviceNameToMethod = <String, String?>{};
late LocalFileSystem frontendServerFileSystem;
late String _hostname;
/// Internal VM service.
///
/// Prefer using [vmService] instead in tests when possible, to include
/// testing of the VmServerConnection (bypassed when using [service]).
ChromeProxyService get service => fetchChromeProxyService(debugConnection);
/// External VM service.
VmService get vmService => debugConnection.vmService;
TestContext(this.project, this.sdkConfigurationProvider);
Future<void> setUp({
TestSettings testSettings = const TestSettings(),
TestAppMetadata appMetadata = const TestAppMetadata.externalApp(),
TestDebugSettings debugSettings =
const TestDebugSettings.noDevToolsLaunch(),
}) async {
try {
// Build settings to return from load strategy.
final buildSettings = TestBuildSettings(
appEntrypoint: project.dartEntryFilePackageUri,
canaryFeatures: testSettings.canaryFeatures,
isFlutterApp: testSettings.isFlutterApp,
experiments: testSettings.experiments,
);
// Make sure configuration was created correctly.
final sdkLayout = sdkConfigurationProvider.sdkLayout;
final configuration = await sdkConfigurationProvider.configuration;
configuration.validate();
await project.setUp();
DartUri.currentDirectory = project.absolutePackageDirectory;
_logger.info(
'Serving: ${project.directoryToServe}/${project.filePathToServe}',
);
_logger.info('Project: ${project.absolutePackageDirectory}');
_logger.info('Packages: ${project.packageConfigFile}');
_logger.info('Entry: ${project.dartEntryFilePath}');
configureLogWriter();
_client = IOClient(
HttpClient()
..maxConnectionsPerHost = 200
..idleTimeout = const Duration(seconds: 30)
..connectionTimeout = const Duration(seconds: 30),
);
final systemTempDir = Directory.systemTemp;
_outputDir = systemTempDir.createTempSync('foo bar');
final chromeDriverPort = await findUnusedPort();
final chromeDriverUrlBase = 'wd/hub';
try {
_chromeDriver = await Process.start('chromedriver$_exeExt', [
'--port=$chromeDriverPort',
'--url-base=$chromeDriverUrlBase',
]);
final stdOutLines = chromeDriver.stdout
.transform(utf8.decoder)
.transform(const LineSplitter())
.asBroadcastStream();
final stdErrLines = chromeDriver.stderr
.transform(utf8.decoder)
.transform(const LineSplitter())
.asBroadcastStream();
// Sometimes ChromeDriver can be slow to startup.
// This was seen on a github actions run:
// > 11:22:59.924700: ChromeDriver stdout: Starting ChromeDriver
// > 139.0.7258.154 ([...]) on port 38107
// > [...]
// > 11:23:00.237350: ChromeDriver stdout: ChromeDriver was started
// > successfully on port 38107.
// Where in the 300+ ms it took before it was actually ready to accept
// a connection we had tried - and failed - to connect.
// We therefore wait until ChromeDriver reports that it has started
// successfully.
final chromeDriverStartup = Completer<void>();
stdOutLines.listen((line) {
if (!chromeDriverStartup.isCompleted &&
line.contains('was started successfully')) {
chromeDriverStartup.complete();
}
_logger.finest('ChromeDriver stdout: $line');
});
stdErrLines.listen(
(line) => _logger.warning('ChromeDriver stderr: $line'),
);
await chromeDriverStartup.future;
} catch (e) {
throw StateError(
'Could not start ChromeDriver. Is it installed?\nError: $e',
);
}
await Process.run(sdkLayout.dartPath, [
'pub',
'upgrade',
], workingDirectory: project.absolutePackageDirectory);
ExpressionCompiler? expressionCompiler;
AssetReader assetReader;
Stream<BuildResults> buildResults;
LoadStrategy loadStrategy;
var basePath = '';
var filePathToServe = project.filePathToServe;
// Start the HTTP server and save its used port.
final httpServer = await startHttpServer('localhost');
_port = httpServer.port;
final reloadedSourcesUri = Uri.parse(
'http://localhost:$_port/${WebDevFS.reloadedSourcesFileName}',
);
switch (testSettings.compilationMode) {
case CompilationMode.buildDaemon:
{
final options = [
if (testSettings.enableExpressionEvaluation) ...[
'--define',
'build_web_compilers|ddc=generate-full-dill=true',
],
for (final experiment in buildSettings.experiments)
'--enable-experiment=$experiment',
if (buildSettings.canaryFeatures) ...[
'--define',
'build_web_compilers|ddc=canary=true',
'--define',
'build_web_compilers|sdk_js=canary=true',
],
if (testSettings.moduleFormat == ModuleFormat.ddc) ...[
'--define',
'build_web_compilers|ddc=ddc-library-bundle=true',
'--define',
'build_web_compilers|sdk_js=ddc-library-bundle=true',
'--define',
'build_web_compilers|entrypoint=ddc-library-bundle=true',
'--define',
'build_web_compilers|entrypoint_marker=ddc-library-bundle=true',
],
'--verbose',
];
_daemonClient = await connectClient(
sdkLayout.dartPath,
project.absolutePackageDirectory,
options,
(log) {
final record = log.toLogRecord();
final name = record.loggerName == ''
? ''
: '${record.loggerName}: ';
_logger.log(
record.level,
'$name${record.message}',
record.error,
record.stackTrace,
);
},
);
daemonClient.registerBuildTarget(
DefaultBuildTarget((b) => b..target = project.directoryToServe),
);
daemonClient.startBuild();
await waitForSuccessfulBuild();
final assetServerPort = daemonPort(
project.absolutePackageDirectory,
);
if (testSettings.moduleFormat == ModuleFormat.ddc &&
buildSettings.canaryFeatures) {
_assetHandler = _createBuildRunnerDdcLibraryBundleAssetHandler(
assetServerPort,
);
assetReader = ProxyServerAssetReader.fromHandler(_assetHandler!);
} else {
_assetHandler = _createBuildRunnerAmdAssetHandler(
assetServerPort,
);
assetReader = ProxyServerAssetReader(
assetServerPort,
root: project.directoryToServe,
);
}
if (testSettings.enableExpressionEvaluation) {
ddcService = ExpressionCompilerService(
'localhost',
_port!,
verbose: testSettings.verboseCompiler,
sdkConfigurationProvider: sdkConfigurationProvider,
);
expressionCompiler = ddcService;
}
loadStrategy = switch ((
testSettings.moduleFormat,
buildSettings.canaryFeatures,
)) {
(ModuleFormat.ddc, true) =>
BuildRunnerDdcLibraryBundleStrategyProvider(
testSettings.reloadConfiguration,
assetReader,
buildSettings,
reloadedSourcesUri: reloadedSourcesUri,
).strategy,
(ModuleFormat.ddc, false) => throw Exception(
'Unsupported DDC configuration: build daemon + canary (false) '
'+ DDC module format ${testSettings.moduleFormat.name}.',
),
_ => BuildRunnerRequireStrategyProvider(
testSettings.reloadConfiguration,
assetReader,
buildSettings,
).strategy,
};
buildResults = daemonClient.buildResults;
}
break;
case CompilationMode.frontendServer:
{
filePathToServe = webCompatiblePath([
project.directoryToServe,
project.filePathToServe,
]);
_logger.info('Serving: $filePathToServe');
final entry = p.toUri(
p.join(project.webAssetsPath, project.dartEntryFileName),
);
frontendServerFileSystem = const LocalFileSystem();
final packageUriMapper = await PackageUriMapper.create(
frontendServerFileSystem,
project.packageConfigFile,
useDebuggerModuleNames: testSettings.useDebuggerModuleNames,
);
final compilerOptions = TestCompilerOptions(
experiments: buildSettings.experiments,
canaryFeatures: buildSettings.canaryFeatures,
moduleFormat: testSettings.moduleFormat,
);
_webRunner = ResidentWebRunner(
mainUri: entry,
urlTunneler: debugSettings.urlEncoder,
projectDirectory: Directory(project.absolutePackageDirectory).uri,
packageConfigFile: project.packageConfigFile,
packageUriMapper: packageUriMapper,
fileSystemRoots: [
Directory(project.absolutePackageDirectory).uri,
],
fileSystemScheme: 'org-dartlang-app',
outputPath: outputDir.path,
compilerOptions: compilerOptions,
sdkLayout: sdkLayout,
verbose: testSettings.verboseCompiler,
);
final assetServerPort = await findUnusedPort();
_hostname = appMetadata.hostname;
await webRunner.run(
frontendServerFileSystem,
hostname: _hostname,
port: assetServerPort,
index: filePathToServe,
);
if (testSettings.enableExpressionEvaluation) {
expressionCompiler = webRunner.expressionCompiler;
}
basePath = webRunner.devFS!.assetServer.basePath;
assetReader = webRunner.devFS!.assetServer;
_assetHandler = webRunner.devFS!.assetServer.handleRequest;
loadStrategy = switch (testSettings.moduleFormat) {
ModuleFormat.amd => FrontendServerRequireStrategyProvider(
testSettings.reloadConfiguration,
assetReader,
packageUriMapper,
() async => {},
buildSettings,
).strategy,
ModuleFormat.ddc =>
buildSettings.canaryFeatures
? FrontendServerDdcLibraryBundleStrategyProvider(
testSettings.reloadConfiguration,
assetReader,
packageUriMapper,
() async => {},
buildSettings,
reloadedSourcesUri: reloadedSourcesUri,
).strategy
: FrontendServerDdcStrategyProvider(
testSettings.reloadConfiguration,
assetReader,
packageUriMapper,
() async => {},
buildSettings,
).strategy,
_ => throw Exception(
'Unsupported DDC module format '
'${testSettings.moduleFormat.name}.',
),
};
buildResults = const Stream<BuildResults>.empty();
}
break;
case CompilationMode.buildDaemonAndFrontendServer:
{
final options = [
if (testSettings.enableExpressionEvaluation) ...[
'--define',
'build_web_compilers|ddc=generate-full-dill=true',
],
for (final experiment in buildSettings.experiments)
'--enable-experiment=$experiment',
'--define',
'build_web_compilers|ddc=canary=true',
'--define',
'build_web_compilers|sdk_js=canary=true',
'--define',
'build_web_compilers|sdk_js=web-hot-reload=true',
'--define',
'build_web_compilers|entrypoint=web-hot-reload=true',
'--define',
'build_web_compilers|entrypoint_marker=web-hot-reload=true',
'--define',
'build_web_compilers|entrypoint_marker=web-assets-path='
'${project.webAssetsPath}',
'--define',
'build_web_compilers|ddc=web-hot-reload=true',
'--define',
'build_web_compilers|ddc_modules=web-hot-reload=true',
'--verbose',
];
_daemonClient = await connectClient(
sdkLayout.dartPath,
project.absolutePackageDirectory,
options,
(log) {
final record = log.toLogRecord();
final name = record.loggerName == ''
? ''
: '${record.loggerName}: ';
_logger.log(
record.level,
'$name${record.message}',
record.error,
record.stackTrace,
);
},
);
daemonClient.registerBuildTarget(
DefaultBuildTarget((b) => b..target = project.directoryToServe),
);
daemonClient.startBuild();
await waitForSuccessfulBuild();
final assetServerPort = daemonPort(
project.absolutePackageDirectory,
);
_assetHandler = _createBuildRunnerDdcLibraryBundleAssetHandler(
assetServerPort,
);
assetReader = ProxyServerAssetReader.fromHandler(_assetHandler!);
if (testSettings.enableExpressionEvaluation) {
ddcService = ExpressionCompilerService(
'localhost',
_port!,
verbose: testSettings.verboseCompiler,
sdkConfigurationProvider: sdkConfigurationProvider,
);
expressionCompiler = ddcService;
}
frontendServerFileSystem = const LocalFileSystem();
final packageUriMapper = await PackageUriMapper.create(
frontendServerFileSystem,
project.packageConfigFile,
useDebuggerModuleNames: testSettings.useDebuggerModuleNames,
);
loadStrategy = switch ((
testSettings.moduleFormat,
buildSettings.canaryFeatures,
)) {
(ModuleFormat.ddc, true) =>
FrontendServerDdcLibraryBundleStrategyProvider(
testSettings.reloadConfiguration,
assetReader,
packageUriMapper,
() async => {},
buildSettings,
injectScriptLoad: false,
reloadedSourcesUri: reloadedSourcesUri,
).strategy,
_ => throw Exception(
'Unsupported DDC module format when compiling with Frontend '
'Server + build_runner ${testSettings.moduleFormat.name}.',
),
};
buildResults = const Stream<BuildResults>.empty();
}
break;
}
final debugPort = await findUnusedPort();
if (testSettings.launchChrome) {
// If the environment variable DWDS_DEBUG_CHROME is set to the string
// true then Chrome will be launched with a UI rather than headless.
// If the extension is enabled, then Chrome will be launched with a UI
// since headless Chrome does not support extensions.
final enableDebugExtension = debugSettings.enableDebugExtension;
final headless =
Platform.environment['DWDS_DEBUG_CHROME'] != 'true' &&
!enableDebugExtension;
if (enableDebugExtension) {
await _buildDebugExtension();
}
final capabilities = Capabilities.chrome
..addAll({
Capabilities.chromeOptions: {
'args': [
// --disable-gpu speeds up the tests that use ChromeDriver when
// they are run on GitHub Actions.
'--disable-gpu',
'remote-debugging-port=$debugPort',
if (enableDebugExtension)
'--load-extension=debug_extension/prod_build',
if (headless) '--headless',
],
},
});
_webDriver = await createDriver(
spec: WebDriverSpec.JsonWire,
desired: capabilities,
uri: Uri.parse(
'http://127.0.0.1:$chromeDriverPort/$chromeDriverUrlBase/',
),
);
}
// The debugger tab must be enabled and connected before certain
// listeners in DWDS or `main` is run.
final tabConnectionCompleter = Completer<void>();
final appConnectionCompleter = Completer<void>();
final connection = ChromeConnection('localhost', debugPort);
// TODO(srujzs): In the case of the frontend server, it doesn't make sense
// that we initialize a new HTTP server instead of reusing the one in
// `TestAssetServer`. We should instead use that one to align with Flutter
// tools.
_testServer = await TestServer.start(
debugSettings: debugSettings.copyWith(
expressionCompiler: expressionCompiler,
),
appMetadata: appMetadata,
port: port,
assetHandler: assetHandler,
assetReader: assetReader,
strategy: loadStrategy,
target: project.directoryToServe,
buildResults: buildResults,
chromeConnection: () async => connection,
httpServer: httpServer,
);
_testServer!.dwds.connectedApps.listen((connection) async {
// Ensure that we've established a tab connection before running main.
await tabConnectionCompleter.future;
if (testSettings.autoRun) {
connection.runMain();
}
// We may reuse the app connection, so only save it the first time
// it's encountered.
if (!appConnectionCompleter.isCompleted) {
appConnection = connection;
appConnectionCompleter.complete();
}
});
_appUrl = basePath.isEmpty
? 'http://localhost:$port/$filePathToServe'
: 'http://localhost:$port/$basePath/$filePathToServe';
if (testSettings.launchChrome) {
await _webDriver?.get(appUrl);
final tab = await connection.getTab((t) => t.url == appUrl);
if (tab != null) {
_tabConnection = await tab.connect();
await tabConnection.runtime.enable();
await tabConnection.debugger.enable().then(
(_) => tabConnectionCompleter.complete(),
);
} else {
throw StateError('Unable to connect to tab.');
}
if (debugSettings.enableDebugExtension) {
final extensionTab = await _fetchDartDebugExtensionTab(connection);
extensionConnection = await extensionTab.connect();
await extensionConnection.runtime.enable();
}
await appConnectionCompleter.future;
if (debugSettings.enableDebugging && !testSettings.waitToDebug) {
await startDebugging();
}
_webkitDebugger = WebkitDebugger(WipDebugger(tabConnection));
} else {
// No tab needs to be discovered, so fulfill the relevant completer.
tabConnectionCompleter.complete();
}
} catch (e, s) {
_logger.severe('Failed to setup the service, $e:$s');
await tearDown();
rethrow;
}
}
/// Creates a VM service connection connected to the debug URI.
///
/// This can be used to test behavior that should be available to a client
/// connected to DWDS.
Future<VmService> connectFakeClient() async {
final fakeClient = await vmServiceConnectUri(debugConnection.uri);
fakeClient.onEvent(EventStreams.kService).listen(_handleServiceEvent);
await fakeClient.streamListen(EventStreams.kService);
return fakeClient;
}
/// Returns the service extension method given the [extensionName].
///
/// The extension be called by a client created with [connectFakeClient].
String? getRegisteredServiceExtension(String extensionName) {
if (_serviceNameToMethod.isEmpty) {
throw StateError('''
No registered service extensions. Did you call connectFakeClient?
''');
}
return _serviceNameToMethod[extensionName];
}
void _handleServiceEvent(Event e) {
if (e.kind == EventKind.kServiceRegistered) {
final serviceName = e.service!;
_serviceNameToMethod[serviceName] = e.method;
}
}
Future<void> startDebugging() async {
debugConnection = await testServer.dwds.debugConnection(appConnection);
}
Future<void> tearDown() async {
await _webRunner?.stop();
await _webDriver?.quit(closeSession: true);
_chromeDriver?.kill();
DartUri.currentDirectory = p.current;
await _daemonClient?.close();
await ddcService?.stop();
await _testServer?.stop();
_client?.close();
await _outputDir?.delete(recursive: true);
stopLogWriter();
await project.tearDown();
// clear the state for next setup
_webDriver = null;
_chromeDriver = null;
_daemonClient = null;
ddcService = null;
_webRunner = null;
_testServer = null;
_client = null;
_outputDir = null;
}
/// Given a list of edits, use file IO to write them to the file system.
///
/// If `file` has the same name as the project's entry file name, that file
/// will be edited. Otherwise, it's assumed to be a library file.
// TODO(srujzs): It's possible we may want a library file with the same name
// as the entry file, but this function doesn't allow that. Potentially
// support that.
Future<void> makeEdits(List<Edit> edits) async {
// `dart:io`'s `stat` on Windows does not have millisecond precision so we
// need to make sure we wait long enough that modifications result in a
// timestamp that is guaranteed to be after the previous compile.
// TODO(https://github.com/dart-lang/sdk/issues/51937): Remove once this bug
// is fixed.
if (Platform.isWindows) {
await Future<void>.delayed(const Duration(seconds: 1));
}
_reloadedSources.clear();
for (var (:file, :originalString, :newString) in edits) {
if (file == project.dartEntryFileName) {
file = project.dartEntryFilePath;
} else {
file = project.dartLibFilePath(file);
}
final f = File(file);
final fileContents = f.readAsStringSync();
f.writeAsStringSync(fileContents.replaceAll(originalString, newString));
_updateReloadedSources(file);
}
}
/// Updates the reloaded_sources.json manifest file for a running test.
///
/// This logic essentially replicates the build system's naming conventions
/// for DDC's generated code. DWDS itself uses the metadata file, but this
/// isn't available for our test fixtures.
/// Rules:
/// - Entrypoints (served): web/main.dart -> main
/// - Entrypoints (nested): test/hello_world/main.dart -> hello_world/main
/// - Library files: lib/path/to/some_file.dart
/// -> packages/`package`/path/to/some_file
void _updateReloadedSources(String absolutePath) {
final relativePath = p.relative(
absolutePath,
from: project.absolutePackageDirectory,
);
final relativeUrl = p.toUri(relativePath).path;
String moduleName;
String libUri;
String srcPath;
if (relativeUrl.startsWith('lib/')) {
final pathInLib = relativeUrl.substring(4);
moduleName =
'packages/${project.packageName}/${p.withoutExtension(pathInLib)}';
libUri = 'package:${project.packageName}/$pathInLib';
srcPath = moduleName;
} else if (absolutePath == project.dartEntryFilePath) {
moduleName = p.withoutExtension(relativeUrl);
libUri = project.dartEntryFilePackageUri.toString();
final servePath = '${project.directoryToServe}/';
if (relativeUrl.startsWith(servePath)) {
// e.g. web/main.dart -> main
srcPath = p.withoutExtension(relativeUrl.substring(servePath.length));
} else {
// e.g. example/hello_world/main.dart -> example/hello_world/main
srcPath = moduleName;
}
} else {
throw StateError(
"Unhandled file path in test context's reloaded_sources.json: "
" $absolutePath. Only entrypoints and files in 'lib/' are supported.",
);
}
_reloadedSources.add(
WebDevFS.createReloadedSourceEntry(
src: '/$srcPath.ddc.js',
module: moduleName,
libraries: [libUri],
),
);
}
/// Contains contents of the reloaded_sources.json manifest file.
///
/// Used by the DDC Library Bundle module system to record changed files for
/// hot restart/reload.
final _reloadedSources = <Map<String, Object>>[];
void addLibraryFile({required String libFileName, required String contents}) {
final file = File(project.dartLibFilePath(libFileName));
// Library folder may not exist yet, so create it.
file.createSync(recursive: true);
file.writeAsStringSync(contents);
_updateReloadedSources(file.path);
}
/// Returns a handler for build runner + DDC AMD module system.
Handler _createBuildRunnerAmdAssetHandler(int assetServerPort) {
return proxyHandler(
'http://localhost:$assetServerPort/${project.directoryToServe}/',
client: client,
);
}
/// Returns a handler for build runner + the DDC Library Bundle module
/// system.
///
/// This handler:
/// - serves the reloaded_sources.json file for reloads/restarts.
/// - serves the application directory and entrypoint from
/// `project.directoryToServe`.
Handler _createBuildRunnerDdcLibraryBundleAssetHandler(int assetServerPort) {
final entrypointProxy = proxyHandler(
'http://localhost:$assetServerPort/${project.directoryToServe}/',
client: client,
);
return (request) {
final path = request.url.path;
if (path.endsWith(WebDevFS.reloadedSourcesFileName)) {
return shelf.Response.ok(jsonEncode(_reloadedSources));
}
return entrypointProxy(request);
};
}
Future<void> recompile({required bool fullRestart}) async {
await webRunner.rerun(
fullRestart: fullRestart,
fileServerUri: Uri.parse('http://${testServer.host}:${testServer.port}'),
);
return;
}
Future<void> waitForSuccessfulBuild({
Duration? timeout,
bool propagateToBrowser = false,
}) async {
// Wait for the build until the timeout is reached:
await daemonClient.buildResults
.firstWhere(
(BuildResults results) => results.results.any(
(BuildResult result) => result.status == BuildStatus.succeeded,
),
)
.timeout(timeout ?? const Duration(seconds: 60));
if (propagateToBrowser) {
// Allow change to propagate to the browser.
// Windows, or at least Travis on Windows, seems to need more time.
// TODO: Wait for an explicit finish signal instead of adding this delay.
final delay = Platform.isWindows
? const Duration(seconds: 5)
: const Duration(seconds: 2);
await Future<void>.delayed(delay);
}
}
Future<void> _buildDebugExtension() async {
final process = await Process.run(
'tool/build_extension.sh',
['prod'],
workingDirectory: absolutePath(pathFromDwds: 'debug_extension'),
);
print(process.stdout);
}
Future<ChromeTab> _fetchDartDebugExtensionTab(
ChromeConnection connection,
) async {
final extensionTabs = (await connection.getTabs()).where((tab) {
return tab.isChromeExtension;
});
for (final tab in extensionTabs) {
final tabConnection = await tab.connect();
final response = await tabConnection.runtime.evaluate(
'window.isDartDebugExtension',
);
if (response.value == true) {
return tab;
}
}
throw StateError('No extension installed.');
}
/// Finds the line number in [scriptRef] matching [breakpointId].
///
/// A breakpoint ID is found by looking for a line that ends with a comment
/// of exactly this form: `// Breakpoint: <id>`.
///
/// Throws if it can't find the matching line.
Future<int> findBreakpointLine(
String breakpointId,
String isolateId,
ScriptRef scriptRef,
) async {
final script =
await debugConnection.vmService.getObject(isolateId, scriptRef.id!)
as Script;
final lines = LineSplitter.split(script.source!).toList();
final lineNumber = lines.indexWhere(
(l) => l.endsWith('// Breakpoint: $breakpointId'),
);
if (lineNumber == -1) {
throw StateError(
'Unable to find breakpoint in ${scriptRef.uri} with id '
'$breakpointId',
);
}
return lineNumber + 1;
}
}
typedef Edit = ({String file, String originalString, String newString});