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Side by Side Diff: build/android/pylib/base/base_test_runner.py

Issue 2101243005: Add a snapshot of flutter/engine/src/build to our sdk (Closed) Base URL: git@github.com:dart-lang/sdk.git@master
Patch Set: add README.dart Created 4 years, 5 months ago
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1 # Copyright (c) 2012 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 """Base class for running tests on a single device."""
6
7 # TODO(jbudorick) Deprecate and remove this class and all subclasses after
8 # any relevant parts have been ported to the new environment + test instance
9 # model.
10
11 import logging
12
13 from pylib import ports
14 from pylib.device import device_utils
15 from pylib.forwarder import Forwarder
16 from pylib.valgrind_tools import CreateTool
17 # TODO(frankf): Move this to pylib/utils
18 import lighttpd_server
19
20
21 # A file on device to store ports of net test server. The format of the file is
22 # test-spawner-server-port:test-server-port
23 NET_TEST_SERVER_PORT_INFO_FILE = 'net-test-server-ports'
24
25
26 class BaseTestRunner(object):
27 """Base class for running tests on a single device."""
28
29 def __init__(self, device, tool):
30 """
31 Args:
32 device: An instance of DeviceUtils that the tests will run on.
33 tool: Name of the Valgrind tool.
34 """
35 assert isinstance(device, device_utils.DeviceUtils)
36 self.device = device
37 self.device_serial = self.device.adb.GetDeviceSerial()
38 self.tool = CreateTool(tool, self.device)
39 self._http_server = None
40 self._forwarder_device_port = 8000
41 self.forwarder_base_url = ('http://localhost:%d' %
42 self._forwarder_device_port)
43 # We will allocate port for test server spawner when calling method
44 # LaunchChromeTestServerSpawner and allocate port for test server when
45 # starting it in TestServerThread.
46 self.test_server_spawner_port = 0
47 self.test_server_port = 0
48
49 def _PushTestServerPortInfoToDevice(self):
50 """Pushes the latest port information to device."""
51 self.device.WriteFile(
52 self.device.GetExternalStoragePath() + '/' +
53 NET_TEST_SERVER_PORT_INFO_FILE,
54 '%d:%d' % (self.test_server_spawner_port, self.test_server_port))
55
56 def RunTest(self, test):
57 """Runs a test. Needs to be overridden.
58
59 Args:
60 test: A test to run.
61
62 Returns:
63 Tuple containing:
64 (base_test_result.TestRunResults, tests to rerun or None)
65 """
66 raise NotImplementedError
67
68 def InstallTestPackage(self):
69 """Installs the test package once before all tests are run."""
70 pass
71
72 def SetUp(self):
73 """Run once before all tests are run."""
74 self.InstallTestPackage()
75
76 def TearDown(self):
77 """Run once after all tests are run."""
78 self.ShutdownHelperToolsForTestSuite()
79
80 def LaunchTestHttpServer(self, document_root, port=None,
81 extra_config_contents=None):
82 """Launches an HTTP server to serve HTTP tests.
83
84 Args:
85 document_root: Document root of the HTTP server.
86 port: port on which we want to the http server bind.
87 extra_config_contents: Extra config contents for the HTTP server.
88 """
89 self._http_server = lighttpd_server.LighttpdServer(
90 document_root, port=port, extra_config_contents=extra_config_contents)
91 if self._http_server.StartupHttpServer():
92 logging.info('http server started: http://localhost:%s',
93 self._http_server.port)
94 else:
95 logging.critical('Failed to start http server')
96 self._ForwardPortsForHttpServer()
97 return (self._forwarder_device_port, self._http_server.port)
98
99 def _ForwardPorts(self, port_pairs):
100 """Forwards a port."""
101 Forwarder.Map(port_pairs, self.device, self.tool)
102
103 def _UnmapPorts(self, port_pairs):
104 """Unmap previously forwarded ports."""
105 for (device_port, _) in port_pairs:
106 Forwarder.UnmapDevicePort(device_port, self.device)
107
108 # Deprecated: Use ForwardPorts instead.
109 def StartForwarder(self, port_pairs):
110 """Starts TCP traffic forwarding for the given |port_pairs|.
111
112 Args:
113 host_port_pairs: A list of (device_port, local_port) tuples to forward.
114 """
115 self._ForwardPorts(port_pairs)
116
117 def _ForwardPortsForHttpServer(self):
118 """Starts a forwarder for the HTTP server.
119
120 The forwarder forwards HTTP requests and responses between host and device.
121 """
122 self._ForwardPorts([(self._forwarder_device_port, self._http_server.port)])
123
124 def _RestartHttpServerForwarderIfNecessary(self):
125 """Restarts the forwarder if it's not open."""
126 # Checks to see if the http server port is being used. If not forwards the
127 # request.
128 # TODO(dtrainor): This is not always reliable because sometimes the port
129 # will be left open even after the forwarder has been killed.
130 if not ports.IsDevicePortUsed(self.device, self._forwarder_device_port):
131 self._ForwardPortsForHttpServer()
132
133 def ShutdownHelperToolsForTestSuite(self):
134 """Shuts down the server and the forwarder."""
135 if self._http_server:
136 self._UnmapPorts([(self._forwarder_device_port, self._http_server.port)])
137 self._http_server.ShutdownHttpServer()
138
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