Server clean-up

pkg/analysis_server/bin/fuzz.dart

-// Copyright (c) 2014, 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.
-
-import 'dart:async';
-import 'dart:io';
-
-import 'package:args/args.dart';
-import 'package:matcher/matcher.dart';
-import 'package:path/path.dart' as path;
-
-import 'fuzz/server_manager.dart';
-
-/**
- * Start analysis server as a separate process and use the stdio to communicate
- * with the server.
- */
-void main(List<String> args) {
-  new _FuzzTest().run(args);
-}
-
-/**
- * Instances of [_FuzzTest] launch and test an analysis server.
- * You must specify the location of the Dart SDK and the directory
- * containing sources to be analyzed.
- */
-class _FuzzTest {
-  /**
-   * The name of the application that is used to start the fuzz tester.
-   */
-  static const BINARY_NAME = 'fuzz';
-
-  //TODO (danrubel) extract common behavior for use in multiple test scenarios
-  //TODO (danrubel) cleanup test to use async/await for better readability
-  // VM flag --enable_async
-
-  static const String DART_SDK_OPTION = 'dart-sdk';
-  static const String HELP_OPTION = 'help';
-
-  File serverSnapshot;
-  Directory appDir;
-
-  /// Parse the arguments and initialize the receiver
-  /// Return `true` if proper arguments were provided
-  bool parseArgs(List<String> args) {
-    ArgParser parser = new ArgParser();
-
-    void error(String errMsg) {
-      stderr.writeln(errMsg);
-      print('');
-      _printUsage(parser);
-      exitCode = 11;
-    }
-
-    parser.addOption(DART_SDK_OPTION, help: '[sdkPath] path to Dart SDK');
-    parser.addFlag(
-        HELP_OPTION,
-        help: 'print this help message without starting analysis',
-        defaultsTo: false,
-        negatable: false);
-
-    ArgResults results;
-    try {
-      results = parser.parse(args);
-    } on FormatException catch (e) {
-      error(e.message);
-      return false;
-    }
-    if (results[HELP_OPTION]) {
-      _printUsage(parser);
-      return false;
-    }
-    String sdkPath = results[DART_SDK_OPTION];
-    if (sdkPath is! String) {
-      error('Missing path to Dart SDK');
-      return false;
-    }
-    Directory sdkDir = new Directory(sdkPath);
-    if (!sdkDir.existsSync()) {
-      error('Specified Dart SDK does not exist: $sdkPath');
-      return false;
-    }
-    if (results.rest.length == 0) {
-      error('Expected directory to analyze');
-      return false;
-    }
-    appDir = new Directory(results.rest[0]);
-    if (!appDir.existsSync()) {
-      error('Specified application directory does not exist: $appDir');
-      return false;
-    }
-    if (results.rest.length > 1) {
-      error('Unexpected arguments after $appDir');
-      return false;
-    }
-    serverSnapshot = new File(
-        path.join(sdkDir.path, 'bin', 'snapshots', 'analysis_server.dart.snapshot'));
-    if (!serverSnapshot.existsSync()) {
-      error('Analysis Server snapshot not found: $serverSnapshot');
-      return false;
-    }
-    return true;
-  }
-
-  /// Main entry point for launching, testing, and shutting down the server
-  void run(List<String> args) {
-    if (!parseArgs(args)) return;
-    ServerManager.start(serverSnapshot.path).then((ServerManager manager) {
-      runZoned(() {
-        test(manager).then(manager.stop).then((_) {
-          expect(manager.errorOccurred, isFalse);
-          print('Test completed successfully');
-        });
-      }, onError: (error, stack) {
-        stderr.writeln(error);
-        print(stack);
-        exitCode = 12;
-        manager.stop();
-      });
-    });
-  }
-
-  /// Use manager to exercise the analysis server
-  Future test(ServerManager manager) {
-
-    // perform initial analysis
-    return manager.analyze(appDir).then((AnalysisResults analysisResults) {
-      print(
-          'Found ${analysisResults.errorCount} errors,'
-              ' ${analysisResults.warningCount} warnings,'
-              ' and ${analysisResults.hintCount} hints in ${analysisResults.elapsed}');
-
-      // edit a method body
-      return manager.openFileNamed(
-          'domain_completion.dart').then((Editor editor) {
-        return editor.moveAfter('Response processRequest(Request request) {');
-      }).then((Editor editor) {
-        return editor.replace(0, '\nOb');
-      }).then((Editor editor) {
-
-        // request code completion and assert results
-        return editor.getSuggestions().then((List<CompletionResults> list) {
-          expect(list, isNotNull);
-          expect(list.length, equals(0));
-          list.forEach((CompletionResults results) {
-            print(
-                '${results.elapsed} received ${results.suggestionCount} suggestions');
-          });
-          return editor;
-        });
-
-      }).then((Editor editor) {
-        print('tests complete');
-      });
-    });
-  }
-
-//  void _printAnalysisSummary(AnalysisResults results) {
-//    print(
-//        'Found ${results.errorCount} errors, ${results.warningCount} warnings,'
-//            ' and ${results.hintCount} hints in $results.elapsed');
-//  }
-
-  /// Print information about how to use the server.
-  void _printUsage(ArgParser parser) {
-    print('Usage: $BINARY_NAME [flags] <application_directory>');
-    print('');
-    print('Supported flags are:');
-    print(parser.usage);
-  }
-}