Barback transforms now pass through the primary input by default.

pkg/barback/test/package_graph/get_all_assets_test.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 barback.test.barback_test;
 
 import 'package:scheduled_test/scheduled_test.dart';
 
 import '../utils.dart';
 
 main() {
   initConfig();
 
   test("gets all source assets", () {
     initGraph(["app|a.txt", "app|b.txt", "app|c.txt"]);
     updateSources(["app|a.txt", "app|b.txt", "app|c.txt"]);
     expectAllAssets(["app|a.txt", "app|b.txt", "app|c.txt"]);
     buildShouldSucceed();
   });
 
-  test("includes transformed outputs, but not consumed ones", () {
+  test("includes transformed outputs", () {
     initGraph(["app|a.txt", "app|foo.blub"], {"app": [
       [new RewriteTransformer("blub", "blab")]
     ]});
     updateSources(["app|a.txt", "app|foo.blub"]);
-    expectAllAssets(["app|a.txt", "app|foo.blab"]);
+    expectAllAssets(["app|a.txt", "app|foo.blub", "app|foo.blab"]);
     buildShouldSucceed();
   });
 
-  test("includes non-primary inputs to transformers", () {
-    var transformer = new ManyToOneTransformer("txt");
-    initGraph({
-      "app|a.txt": "a.inc",
-      "app|a.inc": "a"
-    }, {"app": [[transformer]]});
-
-    updateSources(["app|a.txt", "app|a.inc"]);
-    expectAllAssets(["app|a.inc", "app|a.out"]);
+  test("includes overwritten outputs", () {
+    initGraph(["app|a.txt", "app|foo.blub"], {"app": [
+      [new RewriteTransformer("blub", "blub")]
+    ]});
+    updateSources(["app|a.txt", "app|foo.blub"]);
+    expectAllAssets({
+      "app|a.txt": "a",
+      "app|foo.blub": "foo.blub"
+    });
     buildShouldSucceed();
   });
 
   test("completes to an error if two transformers output the same file", () {
     initGraph(["app|foo.a"], {"app": [
       [
         new RewriteTransformer("a", "b"),
         new RewriteTransformer("a", "b")
       ]
     ]});
@@ skipping 19 matching lines @@
       ]
     ]});
 
     updateSources(["app|foo.txt"]);
     expectAllAssetsShouldFail(isAggregateException([
       isTransformerException(equals(BadTransformer.ERROR)),
       isTransformerException(equals(BadTransformer.ERROR))
     ]));
   });
 }