Install barback from a hosted source in all tests.

test/transformer/runs_one_third_party_transformer_on_another_test.dart

Index: test/transformer/runs_one_third_party_transformer_on_another_test.dart
diff --git a/test/transformer/runs_one_third_party_transformer_on_another_test.dart b/test/transformer/runs_one_third_party_transformer_on_another_test.dart
index 46d0228526effd17a0871fe847490cafa4eee851..b8b571f018d0cf670e12753888395a8e4a336424 100644
--- a/test/transformer/runs_one_third_party_transformer_on_another_test.dart
+++ b/test/transformer/runs_one_third_party_transformer_on_another_test.dart
@@ -9,45 +9,50 @@ import '../test_pub.dart';
 import '../serve/utils.dart';
 
 main() {
-  integration("runs one third-party transformer on another", () {
-    d.dir("foo", [
-      d.pubspec({
-        "name": "foo",
-        "version": "1.0.0"
-      }),
-      d.dir("lib", [
-        d.file("transformer.dart", dartTransformer('foo')),
-      ])
-    ]).create();
+   integration("runs one third-party transformer on another", () {
+     serveBarback();
 
-    d.dir("bar", [
-      d.pubspec({
-        "name": "bar",
-        "version": "1.0.0",
-        "transformers": ["foo/transformer"],
-        "dependencies": {"foo": {"path": "../foo"}}
-      }),
-      d.dir("lib", [
-        d.file("transformer.dart", dartTransformer('bar')),
-      ])
-    ]).create();
+     d.dir("foo", [
+       d.pubspec({
+         "name": "foo",
+         "version": "1.0.0",
+         "dependencies": {"barback": "any"}
+       }),
+       d.dir("lib", [
+         d.file("transformer.dart", dartTransformer('foo')),
+       ])
+     ]).create();
 
-    d.dir(appPath, [
-      d.pubspec({
-        "name": "myapp",
-        "transformers": ["bar/transformer"],
-        "dependencies": {'bar': {'path': '../bar'}}
-      }),
-      d.dir("web", [
-        d.file("main.dart", 'const TOKEN = "main.dart";')
-      ])
-    ]).create();
+     d.dir("bar", [
+       d.pubspec({
+         "name": "bar",
+         "version": "1.0.0",
+         "transformers": ["foo/transformer"],
+         "dependencies": {
+           "foo": {"path": "../foo"},
+           "barback": "any"
+         }
+       }),
+       d.dir("lib", [
+         d.file("transformer.dart", dartTransformer('bar')),
+       ])
+     ]).create();
 
-    createLockFile('myapp', sandbox: ['foo', 'bar'], pkg: ['barback']);
+     d.dir(appPath, [
+       d.pubspec({
+         "name": "myapp",
+         "transformers": ["bar/transformer"],
+         "dependencies": {'bar': {'path': '../bar'}}
+       }),
+       d.dir("web", [
+         d.file("main.dart", 'const TOKEN = "main.dart";')
+       ])
+     ]).create();
 
-    pubServe();
-    requestShouldSucceed("main.dart",
-        'const TOKEN = "(main.dart, (bar, foo))";');
-    endPubServe();
-  });
+     pubGet();
+     pubServe();
+     requestShouldSucceed("main.dart",
+         'const TOKEN = "(main.dart, (bar, foo))";');
+     endPubServe();
+   });
 }