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+# Copyright (c) 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.
+"""
+Classes in this package define additional actions that need to be taken to run a
+test under some kind of runtime error detection tool.
+
+The interface is intended to be used as follows.
+
+1. For tests that simply run a native process (i.e. no activity is spawned):
+
+Call tool.CopyFiles(device).
+Prepend test command line with tool.GetTestWrapper().
+
+2. For tests that spawn an activity:
+
+Call tool.CopyFiles(device).
+Call tool.SetupEnvironment().
+Run the test as usual.
+Call tool.CleanUpEnvironment().
+"""