Better attempt at an appengine wrapper.

go/src/infra/gae/libs/wrapper/taskqueue_testable.go

Index: go/src/infra/gae/libs/wrapper/taskqueue_testable.go
diff --git a/go/src/infra/gae/libs/wrapper/taskqueue_testable.go b/go/src/infra/gae/libs/wrapper/taskqueue_testable.go
new file mode 100644
index 0000000000000000000000000000000000000000..a4bcd30bee81f9a3c2fd57a6ae9c9060bf3f0c84
--- /dev/null
+++ b/go/src/infra/gae/libs/wrapper/taskqueue_testable.go
@@ -0,0 +1,26 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package wrapper
+
+import (
+	"appengine/taskqueue"
+)
+
+// QueueData is {queueName: {taskName: *Task}}
+type QueueData map[string]map[string]*taskqueue.Task
+
+// AnonymousQueueData is {queueName: [*Task]}
+type AnonymousQueueData map[string][]*taskqueue.Task
+
+// TQTestable is the testable interface for fake taskqueue implementations
+type TQTestable interface {
+	Testable
+
+	AddQueue(queueName string)
+	GetScheduledTasks() QueueData
+	GetTombstonedTasks() QueueData
+	GetTransactionTasks() AnonymousQueueData
+	ResetTasks()
+}