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1 # Copyright 2014 The Chromium Authors. All rights reserved. | |
2 # Use of this source code is governed by a BSD-style license that can be | |
3 # found in the LICENSE file. | |
4 | |
5 | |
6 class Environment(object): | |
7 """An environment in which tests can be run. | |
8 | |
9 This is expected to handle all logic that is applicable to an entire specific | |
10 environment but is independent of the test type. | |
11 | |
12 Examples include: | |
13 - The local device environment, for running tests on devices attached to | |
14 the local machine. | |
15 - The local machine environment, for running tests directly on the local | |
16 machine. | |
17 """ | |
18 | |
19 def __init__(self): | |
20 pass | |
21 | |
22 def SetUp(self): | |
23 raise NotImplementedError | |
24 | |
25 def TearDown(self): | |
26 raise NotImplementedError | |
27 | |
28 def __enter__(self): | |
29 self.SetUp() | |
30 return self | |
31 | |
32 def __exit__(self, _exc_type, _exc_val, _exc_tb): | |
33 self.TearDown() | |
34 | |
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