[win] Create a SyzyAsan/Chrome/Kasko/Crashpad integration test.

chrome/test/kasko/py/kasko/util.py

Index: chrome/test/kasko/py/kasko/util.py
diff --git a/chrome/test/kasko/py/kasko/util.py b/chrome/test/kasko/py/kasko/util.py
new file mode 100755
index 0000000000000000000000000000000000000000..4189157fae87dce628080c665c0cda08a309cb4e
--- /dev/null
+++ b/chrome/test/kasko/py/kasko/util.py
@@ -0,0 +1,77 @@
+#!/usr/bin/env python
+# Copyright 2016 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.
+
+"""Various utilities useful for performing Kasko integration tests."""
+
+import logging
+import os
+import shutil
+import tempfile
+
+
+_LOGGER = logging.getLogger(os.path.basename(__file__))
+
+
+class ScopedTempDir(object):
+  """A class that creates a scoped temporary directory."""
+
+  def __init__(self):
+    self.path_ = None
+
+  def __enter__(self):
+    """Creates the temporary directory and initializes |path|."""
+    self.path_ = tempfile.mkdtemp(prefix='kasko_integration_')
+    return self
+
+  def __exit__(self, *args, **kwargs):
+    """Destroys the temporary directory."""
+    if self.path_ is None:
+      return
+    shutil.rmtree(self.path_)
+
+  @property
+  def path(self):
+    return self.path_
+
+  def release(self):
+    path = self.path_
+    self.path_ = None
+    return path
+
+
+class ScopedStartStop(object):
+  """Utility class for calling 'start' and 'stop' within a scope."""
+
+  def __init__(self, service, start=None, stop=None):
+    self.service_ = service
+
+    if start is None:
+      self.start_ = lambda x: x.start()
+    else:
+      self.start_ = start
+
+    if stop is None:
+      self.stop_ = lambda x: x.stop()
+    else:
+      self.stop_ = stop
+
+  def __enter__(self):
+    self.start_(self.service_)
+    return self
+
+  def __exit__(self, *args, **kwargs):
+    if self.service_:
+      self.stop_(self.service_)
+
+  @property
+  def service(self):
+    """Returns the encapsulated service, retaining ownership."""
+    return self.service_
+
+  def release(self):
+    """Relinquishes ownership of the encapsulated service and returns it."""
+    service = self.service_
+    self.service_ = None
+    return service