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1# Copyright 2013 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"""Runs linker tests on a particular device."""
6
7import logging
8import os.path
9import sys
10import time
11import traceback
12
13from pylib import constants
14from pylib.base import base_test_result
15from pylib.base import base_test_runner
16from pylib.utils import apk_helper
17
18import test_case
19
20
21# Name of the Android package to install for this to work.
22_PACKAGE_NAME = 'ContentLinkerTest'
23
24
25class LinkerExceptionTestResult(base_test_result.BaseTestResult):
26  """Test result corresponding to a python exception in a host-custom test."""
27
28  def __init__(self, test_name, exc_info):
29    """Constructs a LinkerExceptionTestResult object.
30
31    Args:
32      test_name: name of the test which raised an exception.
33      exc_info: exception info, ostensibly from sys.exc_info().
34    """
35    exc_type, exc_value, exc_traceback = exc_info
36    trace_info = ''.join(traceback.format_exception(exc_type, exc_value,
37                                                    exc_traceback))
38    log_msg = 'Exception:\n' + trace_info
39
40    super(LinkerExceptionTestResult, self).__init__(
41        test_name,
42        base_test_result.ResultType.FAIL,
43        log = "%s %s" % (exc_type, log_msg))
44
45
46class LinkerTestRunner(base_test_runner.BaseTestRunner):
47  """Orchestrates running a set of linker tests.
48
49  Any Python exceptions in the tests are caught and translated into a failed
50  result, rather than being re-raised on the main thread.
51  """
52
53  #override
54  def __init__(self, device, tool, push_deps, cleanup_test_files):
55    """Creates a new LinkerTestRunner.
56
57    Args:
58      device: Attached android device.
59      tool: Name of the Valgrind tool.
60      push_deps: If True, push all dependencies to the device.
61      cleanup_test_files: Whether or not to cleanup test files on device.
62    """
63
64    super(LinkerTestRunner, self).__init__(device, tool, push_deps,
65                                               cleanup_test_files)
66
67  #override
68  def InstallTestPackage(self):
69    apk_path = os.path.join(
70        constants.GetOutDirectory(), 'apks', '%s.apk' % _PACKAGE_NAME)
71
72    if not os.path.exists(apk_path):
73      raise Exception('%s not found, please build it' % apk_path)
74
75    package_name = apk_helper.GetPackageName(apk_path)
76    self.adb.ManagedInstall(apk_path, package_name)
77
78  #override
79  def RunTest(self, test):
80    """Sets up and runs a test case.
81
82    Args:
83      test: An object which is ostensibly a subclass of LinkerTestCaseBase.
84
85    Returns:
86      A TestRunResults object which contains the result produced by the test
87      and, in the case of a failure, the test that should be retried.
88    """
89
90    assert isinstance(test, test_case.LinkerTestCaseBase)
91
92    try:
93      results = test.Run(self.device)
94    except Exception:
95      logging.exception('Caught exception while trying to run test: ' +
96                        test.tagged_name)
97      exc_info = sys.exc_info()
98      results = base_test_result.TestRunResults()
99      results.AddResult(LinkerExceptionTestResult(
100          test.tagged_name, exc_info))
101
102    if not results.DidRunPass():
103      return results, test
104    else:
105      return results, None
106