Transition barback's infrastructure to an aggregate-based model.

pkg/barback/test/package_graph/transform/cross_package_test.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.
 
 library barback.test.package_graph.transform.pass_through_test;
 
 import 'package:barback/src/utils.dart';
 import 'package:scheduled_test/scheduled_test.dart';
 
 import '../../utils.dart';
@@ skipping 172 matching lines @@
 
     updateSources(["pkg1|a.txt", "pkg2|a.inc"]);
     expectAsset("pkg1|a.out", "a transformed");
     buildShouldSucceed();
 
     modifyAsset("pkg2|a.inc", "b");
     updateSources(["pkg2|a.inc"]);
     expectAsset("pkg1|a.out", "b");
     buildShouldSucceed();
   });
-
-  test("re-runs if the primary input is invalidated before accessing", () {
-    var transformer1 = new RewriteTransformer("txt", "mid");
-    var transformer2 = new RewriteTransformer("mid", "out");
-
-    initGraph([
-      "app|foo.txt"
-    ], {"app": [
-      [transformer1],
-      [transformer2]
-    ]});
-
-    transformer2.pausePrimaryInput();
-    updateSources(["app|foo.txt"]);
-
-    // Wait long enough to ensure that transformer1 has completed and
-    // transformer2 has started.
-    schedule(pumpEventQueue);
-
-    // Update the source again so that transformer1 invalidates the primary
-    // input of transformer2.
-    transformer1.pauseApply();
-    updateSources(["app|foo.txt"]);
-
-    transformer2.resumePrimaryInput();
-    transformer1.resumeApply();
-
-    expectAsset("app|foo.out", "foo.mid.out");
-    buildShouldSucceed();
-
-    expect(transformer1.numRuns, completion(equals(2)));
-    expect(transformer2.numRuns, completion(equals(2)));
-  });
 }