Remove barback from the repo.

pkg/barback/test/transformer/mock.dart

Index: pkg/barback/test/transformer/mock.dart
diff --git a/pkg/barback/test/transformer/mock.dart b/pkg/barback/test/transformer/mock.dart
deleted file mode 100644
index 143496bb8a6765b2143eb5ce788739518983b9f0..0000000000000000000000000000000000000000
--- a/pkg/barback/test/transformer/mock.dart
+++ /dev/null
@@ -1,204 +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.
-
-library barback.test.transformer.mock;
-
-import 'dart:async';
-
-import 'package:barback/barback.dart';
-import 'package:barback/src/utils.dart';
-import 'package:scheduled_test/scheduled_test.dart';
-
-/// The abstract base class for transformers used to test barback.
-///
-/// This adds the ability to pause and resume different components of the
-/// transformers, and to tell whether they're running, when they start running,
-/// and how many times they've run.
-///
-/// Transformers extending this should override [doIsPrimary] and [doApply]
-/// rather than [isPrimary] and [apply], and they should use [getInput] and
-/// [getPrimary] rather than [transform.getInput] and [transform.primaryInput].
-abstract class MockTransformer extends Transformer {
-  /// The number of times the transformer has been applied.
-  ///
-  /// This is scheduled. The Future will complete at the point in the schedule
-  /// that this is called.
-  Future<int> get numRuns => schedule(() => _numRuns);
-  var _numRuns = 0;
-
-  /// The number of currently running transforms.
-  int _runningTransforms = 0;
-
-  /// A completer for pausing the transformer before it finishes running
-  /// [apply].
-  Completer _apply;
-
-  /// Completers for pausing the transformer before it finishes running
-  /// [isPrimary].
-  final _isPrimary = new Map<AssetId, Completer>();
-
-  /// Completers for pausing the transformer before it finishes getting inputs
-  /// the [Transform].
-  final _getInput = new Map<AssetId, Completer>();
-
-  /// Completer for pausing the transformer before it accesses [primaryInput].
-  Completer _primaryInput;
-
-  /// A completer that completes once this transformer begins running.
-  ///
-  /// Once this transformer finishes running, this is reset to a new completer,
-  /// so it can be used multiple times.
-  var _started = new Completer();
-
-  /// `true` if any transforms are currently running.
-  ///
-  /// This is scheduled. The Future will complete at the point in the schedule
-  /// that this is called.
-  Future<bool> get isRunning => schedule(() => _runningTransforms > 0);
-
-  /// If this is set to `true`, the transformer will consume its primary input
-  /// during [apply].
-  bool consumePrimary = false;
-
-  /// Pauses the schedule until this transformer begins running.
-  void waitUntilStarted() {
-    schedule(() => _started.future, "wait until $this starts");
-  }
-
-  /// Causes the transformer to pause after running [apply] but before the
-  /// returned Future completes.
-  ///
-  /// This can be resumed by calling [resumeApply]. This operation is scheduled.
-  void pauseApply() {
-    schedule(() {
-      _apply = new Completer();
-    }, "pause apply for $this");
-  }
-
-  /// Resumes the transformer's [apply] call after [pauseApply] was called.
-  ///
-  /// This operation is scheduled.
-  void resumeApply() {
-    schedule(() {
-      _apply.complete();
-      _apply = null;
-    }, "resume apply for $this");
-  }
-
-  /// Causes the transformer to pause after running [isPrimary] on the asset
-  /// with the given [name], but before the returned Future completes.
-  ///
-  /// This can be resumed by calling [resumeIsPrimary]. This operation is
-  /// scheduled.
-  void pauseIsPrimary(String name) {
-    schedule(() {
-      _isPrimary[new AssetId.parse(name)] = new Completer();
-    }, "pause isPrimary($name) for $this");
-  }
-
-  /// Resumes the transformer's [isPrimary] call on the asset with the given
-  /// [name] after [pauseIsPrimary] was called.
-  ///
-  /// This operation is scheduled.
-  void resumeIsPrimary(String name) {
-    schedule(() {
-      _isPrimary.remove(new AssetId.parse(name)).complete();
-    }, "resume isPrimary($name) for $this");
-  }
-
-  /// Causes the transformer to pause while loading the secondary input with
-  /// the given [name].
-  ///
-  /// This can be resumed by calling [resumeGetInput]. This operation is
-  /// scheduled.
-  void pauseGetInput(String name) {
-    schedule(() {
-      _getInput[new AssetId.parse(name)] = new Completer();
-    }, "pause getInput($name) for $this");
-  }
-
-  /// Resumes the transformer's loading of the input with the given [name] after
-  /// [pauseGetInput] was called.
-  ///
-  /// This operation is scheduled.
-  void resumeGetInput(String name) {
-    schedule(() {
-      _getInput.remove(new AssetId.parse(name)).complete();
-    }, "resume getInput($name) for $this");
-  }
-
-  /// Causes the transformer to pause before accessing [primaryInput].
-  ///
-  /// This can be resumed by calling [resumeGetPrimary]. This operation is
-  /// scheduled.
-  void pausePrimaryInput() {
-    schedule(() {
-      _primaryInput = new Completer();
-    }, "pause primaryInput for $this");
-  }
-
-  /// Resumes the transformer's invocation of [primaryInput] after
-  /// [pauseGetPrimary] was called.
-  ///
-  /// This operation is scheduled.
-  void resumePrimaryInput() {
-    schedule(() {
-      _primaryInput.complete();
-      _primaryInput = null;
-    }, "resume getPrimary() for $this");
-  }
-
-  /// Like [Transform.getInput], but respects [pauseGetInput].
-  ///
-  /// This is intended for use by subclasses of [MockTransformer].
-  Future<Asset> getInput(Transform transform, AssetId id) {
-    return newFuture(() {
-      if (_getInput.containsKey(id)) return _getInput[id].future;
-    }).then((_) => transform.getInput(id));
-  }
-
-  /// Like [Transform.primaryInput], but respects [pauseGetPrimary].
-  ///
-  /// This is intended for use by subclasses of [MockTransformer].
-  Future<Asset> getPrimary(Transform transform) {
-    return newFuture(() {
-      if (_primaryInput != null) return _primaryInput.future;
-    }).then((_) => transform.primaryInput);
-  }
-
-  Future<bool> isPrimary(AssetId id) {
-    return newFuture(() => doIsPrimary(id)).then((result) {
-      return newFuture(() {
-        if (_isPrimary.containsKey(id)) {
-          return _isPrimary[id].future;
-        }
-      }).then((_) => result);
-    });
-  }
-
-  Future apply(Transform transform) {
-    _numRuns++;
-    if (_runningTransforms == 0) _started.complete();
-    _runningTransforms++;
-    if (consumePrimary) transform.consumePrimary();
-    return newFuture(() => doApply(transform)).then((_) {
-      if (_apply != null) return _apply.future;
-    }).whenComplete(() {
-      _runningTransforms--;
-      if (_runningTransforms == 0) _started = new Completer();
-    });
-  }
-
-  /// The wrapped version of [isPrimary] for subclasses to override.
-  ///
-  /// This may return a `Future<bool>` or, if it's entirely synchronous, a
-  /// `bool`.
-  doIsPrimary(AssetId id);
-
-  /// The wrapped version of [doApply] for subclasses to override.
-  ///
-  /// If this does asynchronous work, it should return a [Future] that completes
-  /// once it's finished.
-  doApply(Transform transform);
-}