Replace the configuration map with a typed object.

tools/testing/dart/test_configurations.dart

Index: tools/testing/dart/test_configurations.dart
diff --git a/tools/testing/dart/test_configurations.dart b/tools/testing/dart/test_configurations.dart
index 2c499e0df7703e763b3787c199e6e1b29c38e1ef..4b146aa5e7e6672a63a51645c24c71f9060f469a 100644
--- a/tools/testing/dart/test_configurations.dart
+++ b/tools/testing/dart/test_configurations.dart
@@ -2,23 +2,20 @@
 // 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.
 
-library test_configurations;
-
-import "dart:async";
-import 'dart:convert';
+import 'dart:async';
 import 'dart:io';
-import "dart:math" as math;
+import 'dart:math' as math;
 
 import 'android.dart';
-import "browser_controller.dart";
-import "co19_test_config.dart";
-import "http_server.dart";
-import "path.dart";
-import "test_progress.dart";
-import "test_runner.dart";
-import "test_suite.dart";
-import "utils.dart";
-import "vm_test_config.dart";
+import 'browser_controller.dart';
+import 'co19_test_config.dart';
+import 'configuration.dart';
+import 'path.dart';
+import 'test_progress.dart';
+import 'test_runner.dart';
+import 'test_suite.dart';
+import 'utils.dart';
+import 'vm_test_config.dart';
 
 /**
  * The directories that contain test suites which follow the conventions
@@ -58,32 +55,30 @@ final TEST_SUITE_DIRECTORIES = [
 // This file is created by gclient runhooks.
 final VS_TOOLCHAIN_FILE = new Path("build/win_toolchain.json");
 
-Future testConfigurations(List<Map<String, dynamic>> configurations) async {
+Future testConfigurations(List<Configuration> configurations) async {
   var startTime = new DateTime.now();
   // Extract global options from first configuration.
   var firstConf = configurations[0];
-  var maxProcesses = firstConf['tasks'] as int;
-  var progressIndicator = firstConf['progress'] as String;
-  BuildbotProgressIndicator.stepName = firstConf['step_name'] as String;
-  var verbose = firstConf['verbose'] as bool;
-  var printTiming = firstConf['time'] as bool;
-  var listTests = firstConf['list'] as bool;
-
-  var reportInJson = firstConf['report_in_json'] as bool;
+  var maxProcesses = firstConf.taskCount;
+  var progressIndicator = firstConf.progress;
+  BuildbotProgressIndicator.stepName = firstConf.stepName;
+  var verbose = firstConf.isVerbose;
+  var printTiming = firstConf.printTiming;
+  var listTests = firstConf.listTests;
 
-  var recordingPath = firstConf['record_to_file'] as String;
-  var recordingOutputPath = firstConf['replay_from_file'] as String;
+  var reportInJson = firstConf.reportInJson;
+  var recordingPath = firstConf.recordingPath;
+  var replayPath = firstConf.replayPath;
 
-  Browser.resetBrowserConfiguration =
-      firstConf['reset_browser_configuration'] as bool;
+  Browser.resetBrowserConfiguration = firstConf.resetBrowser;
 
-  if (recordingPath != null && recordingOutputPath != null) {
+  if (recordingPath != null && replayPath != null) {
     print("Fatal: Can't have the '--record_to_file' and '--replay_from_file'"
         "at the same time. Exiting ...");
     exit(1);
   }
 
-  if (!(firstConf['append_logs'] as bool)) {
+  if (!firstConf.appendLogs) {
     var files = [
       new File(TestUtils.flakyFileName),
       new File(TestUtils.testOutcomeFileName)
@@ -95,70 +90,52 @@ Future testConfigurations(List<Map<String, dynamic>> configurations) async {
     }
   }
 
-  DebugLogger.init(
-      firstConf['write_debug_log'] as bool ? TestUtils.debugLogFilePath : null,
-      append: firstConf['append_logs'] as bool);
+  DebugLogger.init(firstConf.writeDebugLog ? TestUtils.debugLogFilePath : null,
+      append: firstConf.appendLogs);
 
   // Print the configurations being run by this execution of
   // test.dart. However, don't do it if the silent progress indicator
   // is used. This is only needed because of the junit tests.
-  if (progressIndicator != 'silent') {
+  if (progressIndicator != Progress.silent) {
     var outputWords = configurations.length > 1
         ? ['Test configurations:']
         : ['Test configuration:'];
-    for (Map conf in configurations) {
-      List settings = ['compiler', 'runtime', 'mode', 'arch']
-          .map((name) => conf[name])
-          .toList();
-      if (conf['checked'] as bool) settings.add('checked');
-      if (conf['strong'] as bool) settings.add('strong');
+
+    for (var configuration in configurations) {
+      var settings = [
+        configuration.compiler.name,
+        configuration.runtime.name,
+        configuration.mode.name,
+        configuration.architecture.name
+      ];
+      if (configuration.isChecked) settings.add('checked');
+      if (configuration.isStrong) settings.add('strong');
+      if (configuration.useFastStartup) settings.add('fast-startup');
       outputWords.add(settings.join('_'));
     }
     print(outputWords.join(' '));
   }
 
-  var runningBrowserTests = configurations.any((config) {
-    return TestUtils.isBrowserRuntime(config['runtime'] as String);
-  });
+  var runningBrowserTests =
+      configurations.any((config) => config.runtime.isBrowser);
 
-  List<Future> serverFutures = [];
+  var serverFutures = <Future>[];
   var testSuites = <TestSuite>[];
   var maxBrowserProcesses = maxProcesses;
   if (configurations.length > 1 &&
-      (configurations[0]['test_server_port'] != 0 ||
-          configurations[0]['test_server_cross_origin_port'] != 0)) {
+      (configurations[0].testServerPort != 0 ||
+          configurations[0].testServerCrossOriginPort != 0)) {
     print("If the http server ports are specified, only one configuration"
         " may be run at a time");
     exit(1);
   }
-  for (var conf in configurations) {
-    var selectors = conf['selectors'] as Map<String, RegExp>;
-    var useContentSecurityPolicy = conf['csp'] as bool;
+
+  for (var configuration in configurations) {
     if (!listTests && runningBrowserTests) {
-      // Start global http servers that serve the entire dart repo.
-      // The http server is available on window.location.port, and a second
-      // server for cross-domain tests can be found by calling
-      // getCrossOriginPortNumber().
-      var servers = new TestingServers(
-          TestUtils.buildDir(conf),
-          useContentSecurityPolicy,
-          conf['runtime'] as String,
-          null,
-          conf['package_root'] as String,
-          conf['packages'] as String);
-      serverFutures.add(servers.startServers(conf['local_ip'] as String,
-          port: conf['test_server_port'] as int,
-          crossOriginPort: conf['test_server_cross_origin_port'] as int));
-      conf['_servers_'] = servers;
-      if (verbose) {
-        serverFutures.last.then((_) {
-          var commandline = servers.httpServerCommandLine();
-          print('Started HttpServers: $commandline');
-        });
-      }
+      serverFutures.add(configuration.startServers());
     }
 
-    if ((conf['runtime'] as String).startsWith('ie')) {
+    if (configuration.runtime.isIE) {
       // NOTE: We've experienced random timeouts of tests on ie9/ie10. The
       // underlying issue has not been determined yet. Our current hypothesis
       // is that windows does not handle the IE processes independently.
@@ -166,18 +143,18 @@ Future testConfigurations(List<Map<String, dynamic>> configurations) async {
       // issues with starting up a new browser just after killing the hanging
       // browser.
       maxBrowserProcesses = 1;
-    } else if ((conf['runtime'] as String).startsWith('safari')) {
+    } else if (configuration.runtime.isSafari) {
       // Safari does not allow us to run from a fresh profile, so we can only
       // use one browser. Additionally, you can not start two simulators
       // for mobile safari simultainiously.
       maxBrowserProcesses = 1;
-    } else if ((conf['runtime'] as String) == 'chrome' &&
+    } else if (configuration.runtime == Runtime.chrome &&
         Platform.operatingSystem == 'macos') {
       // Chrome on mac results in random timeouts.
       // Issue: https://github.com/dart-lang/sdk/issues/23891
       // This change does not fix the problem.
       maxBrowserProcesses = math.max(1, maxBrowserProcesses ~/ 2);
-    } else if ((conf['runtime'] as String) != 'drt') {
+    } else if (configuration.runtime != Runtime.drt) {
       // Even on machines with more than 16 processors, don't open more
       // than 15 browser instances, to avoid overloading the machine.
       // This is especially important when running locally on powerful
@@ -186,30 +163,30 @@ Future testConfigurations(List<Map<String, dynamic>> configurations) async {
     }
 
     // If we specifically pass in a suite only run that.
-    if (conf['suite_dir'] != null) {
-      var suite_path = new Path(conf['suite_dir'] as String);
-      testSuites.add(new PKGTestSuite(conf, suite_path));
+    if (configuration.suiteDirectory != null) {
+      var suitePath = new Path(configuration.suiteDirectory);
+      testSuites.add(new PKGTestSuite(configuration, suitePath));
     } else {
-      for (final testSuiteDir in TEST_SUITE_DIRECTORIES) {
-        final name = testSuiteDir.filename;
-        if (selectors.containsKey(name)) {
-          testSuites
-              .add(new StandardTestSuite.forDirectory(conf, testSuiteDir));
+      for (var testSuiteDir in TEST_SUITE_DIRECTORIES) {
+        var name = testSuiteDir.filename;
+        if (configuration.selectors.containsKey(name)) {
+          testSuites.add(
+              new StandardTestSuite.forDirectory(configuration, testSuiteDir));
         }
       }
-      for (String key in selectors.keys) {
+
+      for (var key in configuration.selectors.keys) {
         if (key == 'co19') {
-          testSuites.add(new Co19TestSuite(conf));
-        } else if ((conf['compiler'] == 'dartk' ||
-                conf['compiler'] == 'none') &&
-            conf['runtime'] == 'vm' &&
+          testSuites.add(new Co19TestSuite(configuration));
+        } else if (configuration.compiler == Compiler.none &&
+            configuration.runtime == Runtime.vm &&
             key == 'vm') {
           // vm tests contain both cc tests (added here) and dart tests (added
           // in [TEST_SUITE_DIRECTORIES]).
-          testSuites.add(new VMTestSuite(conf));
-        } else if (conf['analyzer'] as bool) {
+          testSuites.add(new VMTestSuite(configuration));
+        } else if (configuration.compiler == Compiler.dart2analyzer) {
           if (key == 'analyze_library') {
-            testSuites.add(new AnalyzeLibraryTestSuite(conf));
+            testSuites.add(new AnalyzeLibraryTestSuite(configuration));
           }
         }
       }
@@ -217,11 +194,10 @@ Future testConfigurations(List<Map<String, dynamic>> configurations) async {
   }
 
   void allTestsFinished() {
-    for (var conf in configurations) {
-      if (conf.containsKey('_servers_')) {
-        conf['_servers_'].stopServers();
-      }
+    for (var configuration in configurations) {
+      configuration.stopServers();
     }
+
     DebugLogger.close();
     TestUtils.deleteTempSnapshotDirectory(configurations[0]);
   }
@@ -229,15 +205,15 @@ Future testConfigurations(List<Map<String, dynamic>> configurations) async {
   var eventListener = <EventListener>[];
 
   // We don't print progress if we list tests.
-  if (progressIndicator != 'silent' && !listTests) {
+  if (progressIndicator != Progress.silent && !listTests) {
     var printFailures = true;
     var formatter = Formatter.normal;
-    if (progressIndicator == 'color') {
-      progressIndicator = 'compact';
+    if (progressIndicator == Progress.color) {
+      progressIndicator = Progress.compact;
       formatter = Formatter.color;
     }
-    if (progressIndicator == 'diff') {
-      progressIndicator = 'compact';
+    if (progressIndicator == Progress.diff) {
+      progressIndicator = Progress.compact;
       formatter = Formatter.color;
       printFailures = false;
       eventListener.add(new StatusFileUpdatePrinter());
@@ -247,20 +223,22 @@ Future testConfigurations(List<Map<String, dynamic>> configurations) async {
     if (printFailures) {
       // The buildbot has it's own failure summary since it needs to wrap it
       // into '@@@'-annotated sections.
-      var printFailureSummary = progressIndicator != 'buildbot';
+      var printFailureSummary = progressIndicator != Progress.buildbot;
       eventListener.add(new TestFailurePrinter(printFailureSummary, formatter));
     }
-    eventListener.add(
-        ProgressIndicator.fromName(progressIndicator, startTime, formatter));
+    eventListener.add(ProgressIndicator.fromProgress(
+        progressIndicator, startTime, formatter));
     if (printTiming) {
       eventListener.add(new TimingPrinter(startTime));
     }
     eventListener.add(new SkippedCompilationsPrinter());
   }
-  if (firstConf['write_test_outcome_log'] as bool) {
+
+  if (firstConf.writeTestOutcomeLog) {
     eventListener.add(new TestOutcomeLogWriter());
   }
-  if (firstConf['copy_coredumps'] as bool) {
+
+  if (firstConf.copyCoreDumps) {
     eventListener.add(new UnexpectedCrashLogger());
   }
 
@@ -276,8 +254,9 @@ Future testConfigurations(List<Map<String, dynamic>> configurations) async {
   // If any of the configurations need to access android devices we'll first
   // make a pool of all available adb devices.
   AdbDevicePool adbDevicePool;
-  var needsAdbDevicePool = configurations.any((Map conf) {
-    return conf['runtime'] == 'dart_precompiled' && conf['system'] == 'android';
+  var needsAdbDevicePool = configurations.any((conf) {
+    return conf.runtime == Runtime.dartPrecompiled &&
+        conf.system == System.android;
   });
   if (needsAdbDevicePool) {
     adbDevicePool = await AdbDevicePool.create();
@@ -288,19 +267,6 @@ Future testConfigurations(List<Map<String, dynamic>> configurations) async {
     await Future.wait(serverFutures);
   }
 
-  if (Platform.isWindows) {
-    // When running tests on Windows, use cdb from depot_tools to dump
-    // stack traces of tests timing out.
-    try {
-      var text =
-          await new File(VS_TOOLCHAIN_FILE.toNativePath()).readAsString();
-      firstConf['win_sdk_path'] = JSON.decode(text)['win_sdk'];
-    } on dynamic {
-      // Ignore errors here. If win_sdk is not found, stack trace dumping
-      // for timeouts won't work.
-    }
-  }
-
   // [firstConf] is needed here, since the ProcessQueue needs to know the
   // settings of 'noBatch' and 'local_ip'
   new ProcessQueue(
@@ -313,6 +279,6 @@ Future testConfigurations(List<Map<String, dynamic>> configurations) async {
       allTestsFinished,
       verbose,
       recordingPath,
-      recordingOutputPath,
+      replayPath,
       adbDevicePool);
 }