Start pulling pub from its own repo.

sdk/lib/_internal/pub/test/test_pub.dart

Index: sdk/lib/_internal/pub/test/test_pub.dart
diff --git a/sdk/lib/_internal/pub/test/test_pub.dart b/sdk/lib/_internal/pub/test/test_pub.dart
deleted file mode 100644
index b0ec23f6f0fddbe4eef162d867b89052d5dfcdba..0000000000000000000000000000000000000000
--- a/sdk/lib/_internal/pub/test/test_pub.dart
+++ /dev/null
@@ -1,976 +0,0 @@
-// 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.
-
-/// Test infrastructure for testing pub.
-///
-/// Unlike typical unit tests, most pub tests are integration tests that stage
-/// some stuff on the file system, run pub, and then validate the results. This
-/// library provides an API to build tests like that.
-library test_pub;
-
-import 'dart:async';
-import 'dart:convert';
-import 'dart:io';
-import 'dart:math';
-
-import 'package:http/testing.dart';
-import 'package:path/path.dart' as p;
-import 'package:pub_semver/pub_semver.dart';
-import 'package:scheduled_test/scheduled_process.dart';
-import 'package:scheduled_test/scheduled_server.dart';
-import 'package:scheduled_test/scheduled_stream.dart';
-import 'package:scheduled_test/scheduled_test.dart' hide fail;
-import 'package:shelf/shelf.dart' as shelf;
-import 'package:shelf/shelf_io.dart' as shelf_io;
-import 'package:unittest/compact_vm_config.dart';
-import 'package:yaml/yaml.dart';
-
-import '../lib/src/entrypoint.dart';
-import '../lib/src/exit_codes.dart' as exit_codes;
-// TODO(rnystrom): Using "gitlib" as the prefix here is ugly, but "git" collides
-// with the git descriptor method. Maybe we should try to clean up the top level
-// scope a bit?
-import '../lib/src/git.dart' as gitlib;
-import '../lib/src/http.dart';
-import '../lib/src/io.dart';
-import '../lib/src/lock_file.dart';
-import '../lib/src/log.dart' as log;
-import '../lib/src/package.dart';
-import '../lib/src/pubspec.dart';
-import '../lib/src/source/hosted.dart';
-import '../lib/src/source/path.dart';
-import '../lib/src/source_registry.dart';
-import '../lib/src/system_cache.dart';
-import '../lib/src/utils.dart';
-import '../lib/src/validator.dart';
-import 'descriptor.dart' as d;
-import 'serve_packages.dart';
-
-export 'serve_packages.dart';
-
-/// This should be called at the top of a test file to set up an appropriate
-/// test configuration for the machine running the tests.
-initConfig() {
-  useCompactVMConfiguration();
-  filterStacks = true;
-  unittestConfiguration.timeout = null;
-}
-
-/// The current [HttpServer] created using [serve].
-var _server;
-
-/// The list of paths that have been requested from the server since the last
-/// call to [getRequestedPaths].
-final _requestedPaths = <String>[];
-
-/// The cached value for [_portCompleter].
-Completer<int> _portCompleterCache;
-
-/// A [Matcher] that matches JavaScript generated by dart2js with minification
-/// enabled.
-Matcher isMinifiedDart2JSOutput =
-    isNot(contains("// The code supports the following hooks"));
-
-/// A [Matcher] that matches JavaScript generated by dart2js with minification
-/// disabled.
-Matcher isUnminifiedDart2JSOutput =
-    contains("// The code supports the following hooks");
-
-/// A map from package names to paths from which those packages should be loaded
-/// for [createLockFile].
-///
-/// This allows older versions of dependencies than those that exist in the repo
-/// to be used when testing pub.
-Map<String, String> _packageOverrides;
-
-/// A map from barback versions to the paths of directories in the repo
-/// containing them.
-///
-/// This includes the latest version of barback from pkg as well as all old
-/// versions of barback in third_party.
-final _barbackVersions = _findBarbackVersions();
-
-/// Some older barback versions require older versions of barback's dependencies
-/// than those that are in the repo.
-///
-/// This is a map from barback version ranges to the dependencies for those
-/// barback versions. Each dependency version listed here should be included in
-/// third_party/pkg.
-final _barbackDeps = {
-  new VersionConstraint.parse("<0.15.0"): {
-    "source_maps": "0.9.4"
-  }
-};
-
-/// Populates [_barbackVersions].
-Map<Version, String> _findBarbackVersions() {
-  var versions = {};
-  var currentBarback = p.join(repoRoot, 'third_party', 'pkg', 'barback');
-  versions[new Pubspec.load(currentBarback, new SourceRegistry()).version] =
-      currentBarback;
-
-  for (var dir in listDir(p.join(repoRoot, 'third_party', 'pkg'))) {
-    var basename = p.basename(dir);
-    if (!basename.startsWith('barback-')) continue;
-    versions[new Version.parse(split1(basename, '-').last)] = dir;
-  }
-
-  return versions;
-}
-
-/// Runs the tests in [callback] against all versions of barback in the repo
-/// that match [versionConstraint].
-///
-/// This is used to test that pub doesn't accidentally break older versions of
-/// barback that it's committed to supporting. Only versions `0.13.0` and later
-/// will be tested.
-void withBarbackVersions(String versionConstraint, void callback()) {
-  var constraint = new VersionConstraint.parse(versionConstraint);
-
-  var validVersions = _barbackVersions.keys.where(constraint.allows);
-  if (validVersions.isEmpty) {
-    throw new ArgumentError(
-        'No available barback version matches "$versionConstraint".');
-  }
-
-  for (var version in validVersions) {
-    group("with barback $version", () {
-      setUp(() {
-        _packageOverrides = {};
-        _packageOverrides['barback'] = _barbackVersions[version];
-        _barbackDeps.forEach((constraint, deps) {
-          if (!constraint.allows(version)) return;
-          deps.forEach((packageName, version) {
-            _packageOverrides[packageName] = p.join(
-                repoRoot, 'third_party', 'pkg', '$packageName-$version');
-          });
-        });
-
-        currentSchedule.onComplete.schedule(() {
-          _packageOverrides = null;
-        });
-      });
-
-      callback();
-    });
-  }
-}
-
-/// The completer for [port].
-Completer<int> get _portCompleter {
-  if (_portCompleterCache != null) return _portCompleterCache;
-  _portCompleterCache = new Completer<int>();
-  currentSchedule.onComplete.schedule(() {
-    _portCompleterCache = null;
-  }, 'clearing the port completer');
-  return _portCompleterCache;
-}
-
-/// A future that will complete to the port used for the current server.
-Future<int> get port => _portCompleter.future;
-
-/// Gets the list of paths that have been requested from the server since the
-/// last time this was called (or since the server was first spun up).
-Future<List<String>> getRequestedPaths() {
-  return schedule(() {
-    var paths = _requestedPaths.toList();
-    _requestedPaths.clear();
-    return paths;
-  }, "get previous network requests");
-}
-
-/// Creates an HTTP server to serve [contents] as static files.
-///
-/// This server will exist only for the duration of the pub run. Subsequent
-/// calls to [serve] replace the previous server.
-void serve([List<d.Descriptor> contents]) {
-  var baseDir = d.dir("serve-dir", contents);
-
-  _hasServer = true;
-
-  schedule(() {
-    return _closeServer().then((_) {
-      return shelf_io.serve((request) {
-        currentSchedule.heartbeat();
-        var path = p.posix.fromUri(request.url.path.replaceFirst("/", ""));
-        _requestedPaths.add(path);
-
-        return validateStream(baseDir.load(path))
-            .then((stream) => new shelf.Response.ok(stream))
-            .catchError((error) {
-          return new shelf.Response.notFound('File "$path" not found.');
-        });
-      }, 'localhost', 0).then((server) {
-        _server = server;
-        _portCompleter.complete(_server.port);
-        currentSchedule.onComplete.schedule(_closeServer);
-      });
-    });
-  }, 'starting a server serving:\n${baseDir.describe()}');
-}
-
-/// Closes [_server].
-///
-/// Returns a [Future] that completes after the [_server] is closed.
-Future _closeServer() {
-  if (_server == null) return new Future.value();
-  var future = _server.close();
-  _server = null;
-  _hasServer = false;
-  _portCompleterCache = null;
-  return future;
-}
-
-/// `true` if the current test spins up an HTTP server.
-bool _hasServer = false;
-
-/// Converts [value] into a YAML string.
-String yaml(value) => JSON.encode(value);
-
-/// The full path to the created sandbox directory for an integration test.
-String get sandboxDir => _sandboxDir;
-String _sandboxDir;
-
-/// The path of the package cache directory used for tests, relative to the
-/// sandbox directory.
-final String cachePath = "cache";
-
-/// The path of the mock app directory used for tests, relative to the sandbox
-/// directory.
-final String appPath = "myapp";
-
-/// The path of the packages directory in the mock app used for tests, relative
-/// to the sandbox directory.
-final String packagesPath = "$appPath/packages";
-
-/// Set to true when the current batch of scheduled events should be aborted.
-bool _abortScheduled = false;
-
-/// Enum identifying a pub command that can be run with a well-defined success
-/// output.
-class RunCommand {
-  static final get = new RunCommand('get', new RegExp(
-      r'Got dependencies!|Changed \d+ dependenc(y|ies)!'));
-  static final upgrade = new RunCommand('upgrade', new RegExp(
-      r'(No dependencies changed\.|Changed \d+ dependenc(y|ies)!)$'));
-  static final downgrade = new RunCommand('downgrade', new RegExp(
-      r'(No dependencies changed\.|Changed \d+ dependenc(y|ies)!)$'));
-
-  final String name;
-  final RegExp success;
-  RunCommand(this.name, this.success);
-}
-
-/// Runs the tests defined within [callback] using both pub get and pub upgrade.
-///
-/// Many tests validate behavior that is the same between pub get and
-/// upgrade have the same behavior. Instead of duplicating those tests, this
-/// takes a callback that defines get/upgrade agnostic tests and runs them
-/// with both commands.
-void forBothPubGetAndUpgrade(void callback(RunCommand command)) {
-  group(RunCommand.get.name, () => callback(RunCommand.get));
-  group(RunCommand.upgrade.name, () => callback(RunCommand.upgrade));
-}
-
-/// Schedules an invocation of pub [command] and validates that it completes
-/// in an expected way.
-///
-/// By default, this validates that the command completes successfully and
-/// understands the normal output of a successful pub command. If [warning] is
-/// given, it expects the command to complete successfully *and* print
-/// [warning] to stderr. If [error] is given, it expects the command to *only*
-/// print [error] to stderr. [output], [error], and [warning] may be strings,
-/// [RegExp]s, or [Matcher]s.
-///
-/// If [exitCode] is given, expects the command to exit with that code.
-// TODO(rnystrom): Clean up other tests to call this when possible.
-void pubCommand(RunCommand command,
-    {Iterable<String> args, output, error, warning, int exitCode}) {
-  if (error != null && warning != null) {
-    throw new ArgumentError("Cannot pass both 'error' and 'warning'.");
-  }
-
-  var allArgs = [command.name];
-  if (args != null) allArgs.addAll(args);
-
-  if (output == null) output = command.success;
-
-  if (error != null && exitCode == null) exitCode = 1;
-
-  // No success output on an error.
-  if (error != null) output = null;
-  if (warning != null) error = warning;
-
-  schedulePub(args: allArgs, output: output, error: error, exitCode: exitCode);
-}
-
-void pubGet({Iterable<String> args, output, error, warning, int exitCode}) {
-  pubCommand(RunCommand.get, args: args, output: output, error: error,
-      warning: warning, exitCode: exitCode);
-}
-
-void pubUpgrade({Iterable<String> args, output, error, warning, int exitCode}) {
-  pubCommand(RunCommand.upgrade, args: args, output: output, error: error,
-      warning: warning, exitCode: exitCode);
-}
-
-void pubDowngrade({Iterable<String> args, output, error, warning,
-    int exitCode}) {
-  pubCommand(RunCommand.downgrade, args: args, output: output, error: error,
-      warning: warning, exitCode: exitCode);
-}
-
-/// Schedules starting the "pub [global] run" process and validates the
-/// expected startup output.
-///
-/// If [global] is `true`, this invokes "pub global run", otherwise it does
-/// "pub run".
-///
-/// Returns the `pub run` process.
-ScheduledProcess pubRun({bool global: false, Iterable<String> args}) {
-  var pubArgs = global ? ["global", "run"] : ["run"];
-  pubArgs.addAll(args);
-  var pub = startPub(args: pubArgs);
-
-  // Loading sources and transformers isn't normally printed, but the pub test
-  // infrastructure runs pub in verbose mode, which enables this.
-  pub.stdout.expect(consumeWhile(startsWith("Loading")));
-
-  return pub;
-}
-
-/// Defines an integration test.
-///
-/// The [body] should schedule a series of operations which will be run
-/// asynchronously.
-void integration(String description, void body()) =>
-  _integration(description, body, test);
-
-/// Like [integration], but causes only this test to run.
-void solo_integration(String description, void body()) =>
-  _integration(description, body, solo_test);
-
-void _integration(String description, void body(), [Function testFn]) {
-  testFn(description, () {
-    // TODO(nweiz): remove this when issue 15362 is fixed.
-    currentSchedule.timeout *= 2;
-
-    // The windows bots are very slow, so we increase the default timeout.
-    if (Platform.operatingSystem == "windows") {
-      currentSchedule.timeout *= 2;
-    }
-
-    _sandboxDir = createSystemTempDir();
-    d.defaultRoot = sandboxDir;
-    currentSchedule.onComplete.schedule(() => deleteEntry(_sandboxDir),
-        'deleting the sandbox directory');
-
-    // Schedule the test.
-    body();
-  });
-}
-
-/// Get the path to the root "pub/test" directory containing the pub
-/// tests.
-String get testDirectory =>
-  p.absolute(p.dirname(libraryPath('test_pub')));
-
-/// Schedules renaming (moving) the directory at [from] to [to], both of which
-/// are assumed to be relative to [sandboxDir].
-void scheduleRename(String from, String to) {
-  schedule(
-      () => renameDir(
-          p.join(sandboxDir, from),
-          p.join(sandboxDir, to)),
-      'renaming $from to $to');
-}
-
-/// Schedules creating a symlink at path [symlink] that points to [target],
-/// both of which are assumed to be relative to [sandboxDir].
-void scheduleSymlink(String target, String symlink) {
-  schedule(
-      () => createSymlink(
-          p.join(sandboxDir, target),
-          p.join(sandboxDir, symlink)),
-      'symlinking $target to $symlink');
-}
-
-/// Schedules a call to the Pub command-line utility.
-///
-/// Runs Pub with [args] and validates that its results match [output] (or
-/// [outputJson]), [error], and [exitCode].
-///
-/// [output] and [error] can be [String]s, [RegExp]s, or [Matcher]s.
-///
-/// If [outputJson] is given, validates that pub outputs stringified JSON
-/// matching that object, which can be a literal JSON object or any other
-/// [Matcher].
-///
-/// If [environment] is given, any keys in it will override the environment
-/// variables passed to the spawned process.
-void schedulePub({List args, output, error, outputJson,
-    int exitCode: exit_codes.SUCCESS, Map<String, String> environment}) {
-  // Cannot pass both output and outputJson.
-  assert(output == null || outputJson == null);
-
-  var pub = startPub(args: args, environment: environment);
-  pub.shouldExit(exitCode);
-
-  var failures = [];
-  var stderr;
-
-  expect(Future.wait([
-    pub.stdoutStream().toList(),
-    pub.stderrStream().toList()
-  ]).then((results) {
-    var stdout = results[0].join("\n");
-    stderr = results[1].join("\n");
-
-    if (outputJson == null) {
-      _validateOutput(failures, 'stdout', output, stdout);
-      return null;
-    }
-
-    // Allow the expected JSON to contain futures.
-    return awaitObject(outputJson).then((resolved) {
-      _validateOutputJson(failures, 'stdout', resolved, stdout);
-    });
-  }).then((_) {
-    _validateOutput(failures, 'stderr', error, stderr);
-
-    if (!failures.isEmpty) throw new TestFailure(failures.join('\n'));
-  }), completes);
-}
-
-/// Like [startPub], but runs `pub lish` in particular with [server] used both
-/// as the OAuth2 server (with "/token" as the token endpoint) and as the
-/// package server.
-///
-/// Any futures in [args] will be resolved before the process is started.
-ScheduledProcess startPublish(ScheduledServer server, {List args}) {
-  var tokenEndpoint = server.url.then((url) =>
-      url.resolve('/token').toString());
-  if (args == null) args = [];
-  args = flatten(['lish', '--server', tokenEndpoint, args]);
-  return startPub(args: args, tokenEndpoint: tokenEndpoint);
-}
-
-/// Handles the beginning confirmation process for uploading a packages.
-///
-/// Ensures that the right output is shown and then enters "y" to confirm the
-/// upload.
-void confirmPublish(ScheduledProcess pub) {
-  // TODO(rnystrom): This is overly specific and inflexible regarding different
-  // test packages. Should validate this a little more loosely.
-  pub.stdout.expect(startsWith('Publishing test_pkg 1.0.0 to '));
-  pub.stdout.expect(consumeThrough(
-      "Looks great! Are you ready to upload your package (y/n)?"));
-  pub.writeLine("y");
-}
-
-/// Gets the absolute path to [relPath], which is a relative path in the test
-/// sandbox.
-String _pathInSandbox(String relPath) {
-  return p.join(p.absolute(sandboxDir), relPath);
-}
-
-/// Gets the environment variables used to run pub in a test context.
-Future<Map> getPubTestEnvironment([String tokenEndpoint]) async {
-  var environment = {};
-  environment['_PUB_TESTING'] = 'true';
-  environment['PUB_CACHE'] = _pathInSandbox(cachePath);
-
-  // Ensure a known SDK version is set for the tests that rely on that.
-  environment['_PUB_TEST_SDK_VERSION'] = "0.1.2+3";
-
-  if (tokenEndpoint != null) {
-    environment['_PUB_TEST_TOKEN_ENDPOINT'] = tokenEndpoint.toString();
-  }
-
-  if (_hasServer) {
-    return port.then((p) {
-      environment['PUB_HOSTED_URL'] = "http://localhost:$p";
-      return environment;
-    });
-  }
-
-  return environment;
-}
-
-/// Starts a Pub process and returns a [ScheduledProcess] that supports
-/// interaction with that process.
-///
-/// Any futures in [args] will be resolved before the process is started.
-///
-/// If [environment] is given, any keys in it will override the environment
-/// variables passed to the spawned process.
-ScheduledProcess startPub({List args, Future<String> tokenEndpoint,
-    Map<String, String> environment}) {
-  ensureDir(_pathInSandbox(appPath));
-
-  // Find a Dart executable we can use to spawn. Use the same one that was
-  // used to run this script itself.
-  var dartBin = Platform.executable;
-
-  // If the executable looks like a path, get its full path. That way we
-  // can still find it when we spawn it with a different working directory.
-  if (dartBin.contains(Platform.pathSeparator)) {
-    dartBin = p.absolute(dartBin);
-  }
-
-  // Always run pub from a snapshot. Since we require the SDK to be built, the
-  // snapshot should be there. Note that this *does* mean that the snapshot has
-  // to be manually updated when changing code before running the tests.
-  // Otherwise, you will test against stale data.
-  //
-  // Using the snapshot makes running the tests much faster, which is why we
-  // make this trade-off.
-  var pubPath = p.join(p.dirname(dartBin), 'snapshots/pub.dart.snapshot');
-  var dartArgs = [pubPath, '--verbose'];
-  dartArgs.addAll(args);
-
-  if (tokenEndpoint == null) tokenEndpoint = new Future.value();
-  var environmentFuture = tokenEndpoint
-      .then((tokenEndpoint) => getPubTestEnvironment(tokenEndpoint))
-      .then((pubEnvironment) {
-    if (environment != null) pubEnvironment.addAll(environment);
-    return pubEnvironment;
-  });
-
-  return new PubProcess.start(dartBin, dartArgs, environment: environmentFuture,
-      workingDirectory: _pathInSandbox(appPath),
-      description: args.isEmpty ? 'pub' : 'pub ${args.first}');
-}
-
-/// A subclass of [ScheduledProcess] that parses pub's verbose logging output
-/// and makes [stdout] and [stderr] work as though pub weren't running in
-/// verbose mode.
-class PubProcess extends ScheduledProcess {
-  Stream<Pair<log.Level, String>> _log;
-  Stream<String> _stdout;
-  Stream<String> _stderr;
-
-  PubProcess.start(executable, arguments,
-      {workingDirectory, environment, String description,
-       Encoding encoding: UTF8})
-    : super.start(executable, arguments,
-        workingDirectory: workingDirectory,
-        environment: environment,
-        description: description,
-        encoding: encoding);
-
-  Stream<Pair<log.Level, String>> _logStream() {
-    if (_log == null) {
-      _log = mergeStreams(
-        _outputToLog(super.stdoutStream(), log.Level.MESSAGE),
-        _outputToLog(super.stderrStream(), log.Level.ERROR));
-    }
-
-    var pair = tee(_log);
-    _log = pair.first;
-    return pair.last;
-  }
-
-  final _logLineRegExp = new RegExp(r"^([A-Z ]{4})[:|] (.*)$");
-  final _logLevels = [
-    log.Level.ERROR, log.Level.WARNING, log.Level.MESSAGE, log.Level.IO,
-    log.Level.SOLVER, log.Level.FINE
-  ].fold(<String, log.Level>{}, (levels, level) {
-    levels[level.name] = level;
-    return levels;
-  });
-
-  Stream<Pair<log.Level, String>> _outputToLog(Stream<String> stream,
-      log.Level defaultLevel) {
-    var lastLevel;
-    return stream.map((line) {
-      var match = _logLineRegExp.firstMatch(line);
-      if (match == null) return new Pair<log.Level, String>(defaultLevel, line);
-
-      var level = _logLevels[match[1]];
-      if (level == null) level = lastLevel;
-      lastLevel = level;
-      return new Pair<log.Level, String>(level, match[2]);
-    });
-  }
-
-  Stream<String> stdoutStream() {
-    if (_stdout == null) {
-      _stdout = _logStream().expand((entry) {
-        if (entry.first != log.Level.MESSAGE) return [];
-        return [entry.last];
-      });
-    }
-
-    var pair = tee(_stdout);
-    _stdout = pair.first;
-    return pair.last;
-  }
-
-  Stream<String> stderrStream() {
-    if (_stderr == null) {
-      _stderr = _logStream().expand((entry) {
-        if (entry.first != log.Level.ERROR &&
-            entry.first != log.Level.WARNING) {
-          return [];
-        }
-        return [entry.last];
-      });
-    }
-
-    var pair = tee(_stderr);
-    _stderr = pair.first;
-    return pair.last;
-  }
-}
-
-/// The path to the `packages` directory from which pub loads its dependencies.
-String get _packageRoot => p.absolute(Platform.packageRoot);
-
-/// Fails the current test if Git is not installed.
-///
-/// We require machines running these tests to have git installed. This
-/// validation gives an easier-to-understand error when that requirement isn't
-/// met than just failing in the middle of a test when pub invokes git.
-///
-/// This also increases the [Schedule] timeout to 30 seconds on Windows,
-/// where Git runs really slowly.
-void ensureGit() {
-  if (Platform.operatingSystem == "windows") {
-    currentSchedule.timeout = new Duration(seconds: 30);
-  }
-
-  if (!gitlib.isInstalled) {
-    throw new Exception("Git must be installed to run this test.");
-  }
-}
-
-/// Schedules activating a global package [package] without running
-/// "pub global activate".
-///
-/// This is useful because global packages must be hosted, but the test hosted
-/// server doesn't serve barback. The other parameters here follow
-/// [createLockFile].
-void makeGlobalPackage(String package, String version,
-    Iterable<d.Descriptor> contents, {Iterable<String> pkg,
-    Map<String, String> hosted}) {
-  // Start the server so we know what port to use in the cache directory name.
-  serveNoPackages();
-
-  // Create the package in the hosted cache.
-  d.hostedCache([
-    d.dir("$package-$version", contents)
-  ]).create();
-
-  var lockFile = _createLockFile(pkg: pkg, hosted: hosted);
-
-  // Add the root package to the lockfile.
-  var id = new PackageId(package, "hosted", new Version.parse(version),
-      package);
-  lockFile.packages[package] = id;
-
-  // Write the lockfile to the global cache.
-  var sources = new SourceRegistry();
-  sources.register(new HostedSource());
-  sources.register(new PathSource());
-
-  d.dir(cachePath, [
-    d.dir("global_packages", [
-      d.file("$package.lock", lockFile.serialize(null, sources))
-    ])
-  ]).create();
-}
-
-/// Creates a lock file for [package] without running `pub get`.
-///
-/// [sandbox] is a list of path dependencies to be found in the sandbox
-/// directory. [pkg] is a list of packages in the Dart repo's "pkg" directory;
-/// each package listed here and all its dependencies will be linked to the
-/// version in the Dart repo.
-///
-/// [hosted] is a list of package names to version strings for dependencies on
-/// hosted packages.
-void createLockFile(String package, {Iterable<String> sandbox,
-    Iterable<String> pkg, Map<String, String> hosted}) {
-  var lockFile = _createLockFile(sandbox: sandbox, pkg: pkg, hosted: hosted);
-
-  var sources = new SourceRegistry();
-  sources.register(new HostedSource());
-  sources.register(new PathSource());
-
-  d.file(p.join(package, 'pubspec.lock'),
-      lockFile.serialize(null, sources)).create();
-}
-
-/// Creates a lock file for [package] without running `pub get`.
-///
-/// [sandbox] is a list of path dependencies to be found in the sandbox
-/// directory. [pkg] is a list of packages in the Dart repo's "pkg" directory;
-/// each package listed here and all its dependencies will be linked to the
-/// version in the Dart repo.
-///
-/// [hosted] is a list of package names to version strings for dependencies on
-/// hosted packages.
-LockFile _createLockFile({Iterable<String> sandbox,
-Iterable<String> pkg, Map<String, String> hosted}) {
-  var dependencies = {};
-
-  if (sandbox != null) {
-    for (var package in sandbox) {
-      dependencies[package] = '../$package';
-    }
-  }
-
-  if (pkg != null) {
-    _addPackage(String package) {
-      if (dependencies.containsKey(package)) return;
-
-      var path;
-      if (package == 'barback' && _packageOverrides == null) {
-        throw new StateError("createLockFile() can only create a lock file "
-            "with a barback dependency within a withBarbackVersions() "
-            "block.");
-      }
-
-      if (_packageOverrides.containsKey(package)) {
-        path = _packageOverrides[package];
-      } else {
-        path = packagePath(package);
-      }
-
-      dependencies[package] = path;
-      var pubspec = loadYaml(
-          readTextFile(p.join(path, 'pubspec.yaml')));
-      var packageDeps = pubspec['dependencies'];
-      if (packageDeps == null) return;
-      packageDeps.keys.forEach(_addPackage);
-    }
-
-    pkg.forEach(_addPackage);
-  }
-
-  var lockFile = new LockFile.empty();
-  dependencies.forEach((name, dependencyPath) {
-    var id = new PackageId(name, 'path', new Version(0, 0, 0), {
-      'path': dependencyPath,
-      'relative': p.isRelative(dependencyPath)
-    });
-    lockFile.packages[name] = id;
-  });
-
-  if (hosted != null) {
-    hosted.forEach((name, version) {
-      var id = new PackageId(name, 'hosted', new Version.parse(version), name);
-      lockFile.packages[name] = id;
-    });
-  }
-
-  return lockFile;
-}
-
-/// Returns the path to [package] within the repo.
-String packagePath(String package) =>
-    dirExists(p.join(repoRoot, 'pkg', package)) ?
-        p.join(repoRoot, 'pkg', package) :
-        p.join(repoRoot, 'third_party', 'pkg', package);
-
-/// Uses [client] as the mock HTTP client for this test.
-///
-/// Note that this will only affect HTTP requests made via http.dart in the
-/// parent process.
-void useMockClient(MockClient client) {
-  var oldInnerClient = innerHttpClient;
-  innerHttpClient = client;
-  currentSchedule.onComplete.schedule(() {
-    innerHttpClient = oldInnerClient;
-  }, 'de-activating the mock client');
-}
-
-/// Describes a map representing a library package with the given [name],
-/// [version], and [dependencies].
-Map packageMap(String name, String version, [Map dependencies]) {
-  var package = {
-    "name": name,
-    "version": version,
-    "author": "Natalie Weizenbaum <nweiz@google.com>",
-    "homepage": "http://pub.dartlang.org",
-    "description": "A package, I guess."
-  };
-
-  if (dependencies != null) package["dependencies"] = dependencies;
-
-  return package;
-}
-
-/// Resolves [target] relative to the path to pub's `test/asset` directory.
-String testAssetPath(String target) =>
-    p.join(p.dirname(libraryPath('test_pub')), 'asset', target);
-
-/// Returns a Map in the format used by the pub.dartlang.org API to represent a
-/// package version.
-///
-/// [pubspec] is the parsed pubspec of the package version. If [full] is true,
-/// this returns the complete map, including metadata that's only included when
-/// requesting the package version directly.
-Map packageVersionApiMap(Map pubspec, {bool full: false}) {
-  var name = pubspec['name'];
-  var version = pubspec['version'];
-  var map = {
-    'pubspec': pubspec,
-    'version': version,
-    'url': '/api/packages/$name/versions/$version',
-    'archive_url': '/packages/$name/versions/$version.tar.gz',
-    'new_dartdoc_url': '/api/packages/$name/versions/$version'
-        '/new_dartdoc',
-    'package_url': '/api/packages/$name'
-  };
-
-  if (full) {
-    map.addAll({
-      'downloads': 0,
-      'created': '2012-09-25T18:38:28.685260',
-      'libraries': ['$name.dart'],
-      'uploader': ['nweiz@google.com']
-    });
-  }
-
-  return map;
-}
-
-/// Returns the name of the shell script for a binstub named [name].
-///
-/// Adds a ".bat" extension on Windows.
-String binStubName(String name) => Platform.isWindows ? '$name.bat' : name;
-
-/// Compares the [actual] output from running pub with [expected].
-///
-/// If [expected] is a [String], ignores leading and trailing whitespace
-/// differences and tries to report the offending difference in a nice way.
-///
-/// If it's a [RegExp] or [Matcher], just reports whether the output matches.
-void _validateOutput(List<String> failures, String pipe, expected,
-                     String actual) {
-  if (expected == null) return;
-
-  if (expected is String) {
-    _validateOutputString(failures, pipe, expected, actual);
-  } else {
-    if (expected is RegExp) expected = matches(expected);
-    expect(actual, expected);
-  }
-}
-
-void _validateOutputString(List<String> failures, String pipe,
-                           String expected, String actual) {
-  var actualLines = actual.split("\n");
-  var expectedLines = expected.split("\n");
-
-  // Strip off the last line. This lets us have expected multiline strings
-  // where the closing ''' is on its own line. It also fixes '' expected output
-  // to expect zero lines of output, not a single empty line.
-  if (expectedLines.last.trim() == '') {
-    expectedLines.removeLast();
-  }
-
-  var results = [];
-  var failed = false;
-
-  // Compare them line by line to see which ones match.
-  var length = max(expectedLines.length, actualLines.length);
-  for (var i = 0; i < length; i++) {
-    if (i >= actualLines.length) {
-      // Missing output.
-      failed = true;
-      results.add('? ${expectedLines[i]}');
-    } else if (i >= expectedLines.length) {
-      // Unexpected extra output.
-      failed = true;
-      results.add('X ${actualLines[i]}');
-    } else {
-      var expectedLine = expectedLines[i].trim();
-      var actualLine = actualLines[i].trim();
-
-      if (expectedLine != actualLine) {
-        // Mismatched lines.
-        failed = true;
-        results.add('X ${actualLines[i]}');
-      } else {
-        // Output is OK, but include it in case other lines are wrong.
-        results.add('| ${actualLines[i]}');
-      }
-    }
-  }
-
-  // If any lines mismatched, show the expected and actual.
-  if (failed) {
-    failures.add('Expected $pipe:');
-    failures.addAll(expectedLines.map((line) => '| $line'));
-    failures.add('Got:');
-    failures.addAll(results);
-  }
-}
-
-/// Validates that [actualText] is a string of JSON that matches [expected],
-/// which may be a literal JSON object, or any other [Matcher].
-void _validateOutputJson(List<String> failures, String pipe,
-                         expected, String actualText) {
-  var actual;
-  try {
-    actual = JSON.decode(actualText);
-  } on FormatException catch(error) {
-    failures.add('Expected $pipe JSON:');
-    failures.add(expected);
-    failures.add('Got invalid JSON:');
-    failures.add(actualText);
-  }
-
-  // Match against the expectation.
-  expect(actual, expected);
-}
-
-/// A function that creates a [Validator] subclass.
-typedef Validator ValidatorCreator(Entrypoint entrypoint);
-
-/// Schedules a single [Validator] to run on the [appPath].
-///
-/// Returns a scheduled Future that contains the errors and warnings produced
-/// by that validator.
-Future<Pair<List<String>, List<String>>> schedulePackageValidation(
-    ValidatorCreator fn) {
-  return schedule(() {
-    var cache = new SystemCache.withSources(
-        rootDir: p.join(sandboxDir, cachePath));
-
-    return new Future.sync(() {
-      var validator = fn(new Entrypoint(p.join(sandboxDir, appPath), cache));
-      return validator.validate().then((_) {
-        return new Pair(validator.errors, validator.warnings);
-      });
-    });
-  }, "validating package");
-}
-
-/// A matcher that matches a Pair.
-Matcher pairOf(Matcher firstMatcher, Matcher lastMatcher) =>
-   new _PairMatcher(firstMatcher, lastMatcher);
-
-class _PairMatcher extends Matcher {
-  final Matcher _firstMatcher;
-  final Matcher _lastMatcher;
-
-  _PairMatcher(this._firstMatcher, this._lastMatcher);
-
-  bool matches(item, Map matchState) {
-    if (item is! Pair) return false;
-    return _firstMatcher.matches(item.first, matchState) &&
-        _lastMatcher.matches(item.last, matchState);
-  }
-
-  Description describe(Description description) {
-    return description.addAll("(", ", ", ")", [_firstMatcher, _lastMatcher]);
-  }
-}
-
-/// A [StreamMatcher] that matches multiple lines of output.
-StreamMatcher emitsLines(String output) => inOrder(output.split("\n"));