cleanup to tools/testing/dart

tools/testing/dart/utils.dart

-// Copyright (c) 2013, 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.
-
-library utils;
-
-import 'dart:io';
-import 'dart:convert';
-
-import 'path.dart';
-
-// This is the maximum time we expect stdout/stderr of subprocesses to deliver
-// data after we've got the exitCode.
-const Duration MAX_STDIO_DELAY = const Duration(seconds: 30);
-
-String MAX_STDIO_DELAY_PASSED_MESSAGE =
-"""Not waiting for stdout/stderr from subprocess anymore 
-($MAX_STDIO_DELAY passed). Please note that this could be an indicator 
-that there is a hanging process which we were unable to kill.""";
-
-class DebugLogger {
-  static IOSink _sink;
-
-  /**
-   * If [path] was null, the DebugLogger will write messages to stdout.
-   */
-  static init(Path path, {append: false}) {
-    if (path != null) {
-      var mode = append ? FileMode.APPEND : FileMode.WRITE;
-      _sink = new File(path.toNativePath()).openWrite(mode: mode);
-    }
-  }
-
-  static void close() {
-    if (_sink != null) {
-      _sink.close();
-      _sink = null;
-    }
-  }
-
-  static String _formatErrorMessage(String msg, error) {
-    if (error == null) return msg;
-    msg += ": $error";
-    // TODO(floitsch): once the dart-executable that is bundled
-    // with the Dart sources is updated, pass a trace parameter too and do:
-    // if (trace != null) msg += "\nStackTrace: $trace";
-    return msg;
-  }
-  static void info(String msg, [error]) {
-    msg = _formatErrorMessage(msg, error);
-    _print("$_datetime Info: $msg");
-  }
-
-  static void warning(String msg, [error]) {
-    msg = _formatErrorMessage(msg, error);
-    _print("$_datetime Warning: $msg");
-  }
-
-  static void error(String msg, [error]) {
-    msg = _formatErrorMessage(msg, error);
-    _print("$_datetime Error: $msg");
-  }
-
-  static void _print(String msg) {
-    if (_sink != null) {
-      _sink.writeln(msg);
-    } else {
-      print(msg);
-    }
-  }
-
-  static String get _datetime => "${new DateTime.now()}";
-}
-
-String prettifyJson(Object json, {int startIndentation: 0, int shiftWidth: 6}) {
-  int currentIndentation = startIndentation;
-  var buffer = new StringBuffer();
-
-  String indentationString() {
-    return new List.filled(currentIndentation, ' ').join('');
-  }
-
-  addString(String s, {bool indentation: true, bool newLine: true}) {
-    if (indentation) {
-      buffer.write(indentationString());
-    }
-    buffer.write(s.replaceAll("\n", "\n${indentationString()}"));
-    if (newLine) buffer.write("\n");
-  }
-
-  prettifyJsonInternal(
-      Object obj, {bool indentation: true, bool newLine: true}) {
-    if (obj is List) {
-      addString("[", indentation: indentation);
-      currentIndentation += shiftWidth;
-      for (var item in obj) {
-
-        prettifyJsonInternal(item, indentation: indentation, newLine: false);
-        addString(",", indentation: false);
-      }
-      currentIndentation -= shiftWidth;
-      addString("]", indentation: indentation);
-    } else if (obj is Map) {
-      addString("{", indentation: indentation);
-      currentIndentation += shiftWidth;
-      for (var key in obj.keys) {
-        addString("$key: ", indentation: indentation, newLine: false);
-        currentIndentation += shiftWidth;
-        prettifyJsonInternal(obj[key], indentation: false);
-        currentIndentation -= shiftWidth;
-      }
-      currentIndentation -= shiftWidth;
-      addString("}", indentation: indentation, newLine: newLine);
-    } else {
-      addString("$obj", indentation: indentation, newLine: newLine);
-    }
-  }
-  prettifyJsonInternal(json);
-  return buffer.toString();
-}
-
-
-/**
- * [areByteArraysEqual] compares a range of bytes from [buffer1] with a
- * range of bytes from [buffer2].
- *
- * Returns [true] if the [count] bytes in [buffer1] (starting at
- * [offset1]) match the [count] bytes in [buffer2] (starting at
- * [offset2]).
- * Otherwise [false] is returned.
- */
-bool areByteArraysEqual(List<int> buffer1, int offset1,
-                        List<int> buffer2, int offset2,
-                        int count) {
-  if ((offset1 + count) > buffer1.length ||
-      (offset2 + count) > buffer2.length) {
-    return false;
-  }
-
-  for (var i = 0; i < count; i++) {
-    if (buffer1[offset1 + i] != buffer2[offset2 + i]) {
-      return false;
-    }
-  }
-  return true;
-}
-
-/**
- * [findBytes] searches for [pattern] in [data] beginning at [startPos].
- *
- * Returns [true] if [pattern] was found in [data].
- * Otherwise [false] is returned.
- */
-int findBytes(List<int> data, List<int> pattern, [int startPos=0]) {
-  // TODO(kustermann): Use one of the fast string-matching algorithms!
-  for (int i = startPos; i < (data.length - pattern.length); i++) {
-    bool found = true;
-    for (int j = 0; j < pattern.length; j++) {
-      if (data[i + j] != pattern[j]) {
-        found = false;
-        break;
-      }
-    }
-    if (found) {
-      return i;
-    }
-  }
-  return -1;
-}
-
-List<int> encodeUtf8(String string) {
-  return UTF8.encode(string);
-}
-
-// TODO(kustermann,ricow): As soon we have a debug log we should log
-// invalid utf8-encoded input to the log.
-// Currently invalid bytes will be replaced by a replacement character.
-String decodeUtf8(List<int> bytes) {
-  return UTF8.decode(bytes, allowMalformed: true);
-}
-
-class Locations {
-  static String getBrowserLocation(String browserName,
-                                   Map globalConfiguration) {
-    var location = globalConfiguration[browserName];
-    if (location != null && location != '') {
-      return location;
-    }
-    var browserLocations = {
-        'firefox': const {
-          'windows': 'C:\\Program Files (x86)\\Mozilla Firefox\\firefox.exe',
-          'linux': 'firefox',
-          'macos': '/Applications/Firefox.app/Contents/MacOS/firefox'
-        },
-        'chrome': const {
-          'windows':
-            'C:\\Program Files (x86)\\Google\\Chrome\\Application\\chrome.exe',
-          'macos':
-            '/Applications/Google Chrome.app/Contents/MacOS/Google Chrome',
-          'linux': 'google-chrome'
-        },
-        'dartium': const {
-          'windows': 'client\\tests\\dartium\\chrome.exe',
-          'macos': 'client/tests/dartium/Chromium.app/Contents/MacOS/Chromium',
-          'linux': 'client/tests/dartium/chrome'
-        },
-        'safari': const {
-          'macos': '/Applications/Safari.app/Contents/MacOS/Safari'
-        },
-        'safarimobilesim': const {
-          'macos': '/Applications/Xcode.app/Contents/Developer/Platforms/'
-                   'iPhoneSimulator.platform/Developer/Applications/'
-                   'iPhone Simulator.app/Contents/MacOS/iPhone Simulator'
-        },
-        'ie9': const {
-          'windows': 'C:\\Program Files\\Internet Explorer\\iexplore.exe'
-        },
-        'ie10': const {
-          'windows': 'C:\\Program Files\\Internet Explorer\\iexplore.exe'
-        },
-        'ie11': const {
-          'windows': 'C:\\Program Files\\Internet Explorer\\iexplore.exe'
-        }};
-    browserLocations['ff'] = browserLocations['firefox'];
-
-    assert(browserLocations[browserName] != null);
-    location = browserLocations[browserName][Platform.operatingSystem];
-    if (location != null) {
-      return location;
-    } else {
-      throw '$browserName not supported on ${Platform.operatingSystem}';
-    }
-  }
-}
-
-// This function is pretty stupid and only puts quotes around an argument if
-// it the argument contains a space.
-String escapeCommandLineArgument(String argument) {
-  if (argument.contains(' ')) {
-    return '"$argument"';
-  }
-  return argument;
-}
-
-class HashCodeBuilder {
-  int _value = 0;
-
-  void add(Object object) {
-    _value = ((_value * 31) ^ object.hashCode)  & 0x3FFFFFFF;
-  }
-
-  void addJson(Object object) {
-    if (object == null || object is num || object is String ||
-                  object is Uri || object is bool) {
-      add(object);
-    } else if (object is List) {
-      object.forEach(addJson);
-    } else if (object is Map) {
-      for (var key in object.keys.toList()..sort()) {
-        addJson(key);
-        addJson(object[key]);
-      }
-    } else {
-      throw new Exception("Can't build hashcode for non json-like object "
-          "(${object.runtimeType})");
-    }
-  }
-
-  int get value => _value;
-}
-
-bool deepJsonCompare(Object a, Object b) {
-  if (a == null || a is num || a is String) {
-    return a == b;
-  } else if (a is List) {
-    if (b is List) {
-      if (a.length != b.length) return false;
-
-      for (int i = 0; i < a.length; i++) {
-        if (!deepJsonCompare(a[i], b[i])) return false;
-      }
-      return true;
-    }
-    return false;
-  } else if (a is Map) {
-    if (b is Map) {
-      if (a.length != b.length) return false;
-
-      for (var key in a.keys) {
-        if (!b.containsKey(key)) return false;
-        if (!deepJsonCompare(a[key], b[key])) return false;
-      }
-      return true;
-    }
-    return false;
-  } else {
-    throw new Exception("Can't compare two non json-like objects "
-        "(a: ${a.runtimeType}, b: ${b.runtimeType})");
-  }
-}
-
-class UniqueObject {
-  static int _nextId = 1;
-  final int _hashCode;
-
-  int get hashCode => _hashCode;
-  operator==(other) => other is UniqueObject && _hashCode == other._hashCode;
-
-  UniqueObject() : _hashCode = ++_nextId;
-}