# Copyright 2014 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.


class TestInstance:
    """A type of test.

    This is expected to handle all logic that is test-type specific but
    independent of the environment or device.

    Examples include:
      - gtests
      - instrumentation tests
    """

    def __init__(self):
        pass

    def TestType(self):
        raise NotImplementedError

    # pylint: disable=no-self-use
    def GetPreferredAbis(self):
        return None

    # pylint: enable=no-self-use

    def SetUp(self):
        raise NotImplementedError

    def TearDown(self):
        raise NotImplementedError

    def __enter__(self):
        self.SetUp()
        return self

    def __exit__(self, _exc_type, _exc_val, _exc_tb):
        self.TearDown()