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Side by Side Diff: build/android/pylib/host_driven/setup.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 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 """Setup for instrumentation host-driven tests."""
6
7 import logging
8 import os
9 import sys
10 import types
11
12 from pylib.host_driven import test_case
13 from pylib.host_driven import test_info_collection
14 from pylib.host_driven import test_runner
15
16
17 def _GetPythonFiles(root, files):
18 """Returns all files from |files| that end in 'Test.py'.
19
20 Args:
21 root: A directory name with python files.
22 files: A list of file names.
23
24 Returns:
25 A list with all python files that match the testing naming scheme.
26 """
27 return [os.path.join(root, f) for f in files if f.endswith('Test.py')]
28
29
30 def _InferImportNameFromFile(python_file):
31 """Given a file, infer the import name for that file.
32
33 Example: /usr/foo/bar/baz.py -> baz.
34
35 Args:
36 python_file: Path to the Python file, ostensibly to import later.
37
38 Returns:
39 The module name for the given file.
40 """
41 return os.path.splitext(os.path.basename(python_file))[0]
42
43
44 def _GetTestModules(host_driven_test_root, is_official_build):
45 """Retrieve a list of python modules that match the testing naming scheme.
46
47 Walks the location of host-driven tests, imports them, and provides the list
48 of imported modules to the caller.
49
50 Args:
51 host_driven_test_root: The path to walk, looking for the
52 pythonDrivenTests or host_driven_tests directory
53 is_official_build: Whether to run only those tests marked 'official'
54
55 Returns:
56 A list of python modules under |host_driven_test_root| which match the
57 testing naming scheme. Each module should define one or more classes that
58 derive from HostDrivenTestCase.
59 """
60 # By default run all host-driven tests under pythonDrivenTests or
61 # host_driven_tests.
62 host_driven_test_file_list = []
63 for root, _, files in os.walk(host_driven_test_root):
64 if (root.endswith('host_driven_tests') or
65 root.endswith('pythonDrivenTests') or
66 (is_official_build and (root.endswith('pythonDrivenTests/official') or
67 root.endswith('host_driven_tests/official')))):
68 host_driven_test_file_list += _GetPythonFiles(root, files)
69 host_driven_test_file_list.sort()
70
71 test_module_list = [_GetModuleFromFile(test_file)
72 for test_file in host_driven_test_file_list]
73 return test_module_list
74
75
76 def _GetModuleFromFile(python_file):
77 """Gets the python module associated with a file by importing it.
78
79 Args:
80 python_file: File to import.
81
82 Returns:
83 The module object.
84 """
85 sys.path.append(os.path.dirname(python_file))
86 import_name = _InferImportNameFromFile(python_file)
87 return __import__(import_name)
88
89
90 def _GetTestsFromClass(test_case_class, **kwargs):
91 """Returns one test object for each test method in |test_case_class|.
92
93 Test methods are methods on the class which begin with 'test'.
94
95 Args:
96 test_case_class: Class derived from HostDrivenTestCase which contains zero
97 or more test methods.
98 kwargs: Keyword args to pass into the constructor of test cases.
99
100 Returns:
101 A list of test case objects, each initialized for a particular test method.
102 """
103 test_names = [m for m in dir(test_case_class)
104 if _IsTestMethod(m, test_case_class)]
105 return [test_case_class(name, **kwargs) for name in test_names]
106
107
108 def _GetTestsFromModule(test_module, **kwargs):
109 """Gets a list of test objects from |test_module|.
110
111 Args:
112 test_module: Module from which to get the set of test methods.
113 kwargs: Keyword args to pass into the constructor of test cases.
114
115 Returns:
116 A list of test case objects each initialized for a particular test method
117 defined in |test_module|.
118 """
119
120 tests = []
121 for name in dir(test_module):
122 attr = getattr(test_module, name)
123 if _IsTestCaseClass(attr):
124 tests.extend(_GetTestsFromClass(attr, **kwargs))
125 return tests
126
127
128 def _IsTestCaseClass(test_class):
129 return (type(test_class) is types.TypeType and
130 issubclass(test_class, test_case.HostDrivenTestCase) and
131 test_class is not test_case.HostDrivenTestCase)
132
133
134 def _IsTestMethod(attrname, test_case_class):
135 """Checks whether this is a valid test method.
136
137 Args:
138 attrname: The method name.
139 test_case_class: The test case class.
140
141 Returns:
142 True if test_case_class.'attrname' is callable and it starts with 'test';
143 False otherwise.
144 """
145 attr = getattr(test_case_class, attrname)
146 return callable(attr) and attrname.startswith('test')
147
148
149 def _GetAllTests(test_root, is_official_build, **kwargs):
150 """Retrieve a list of host-driven tests defined under |test_root|.
151
152 Args:
153 test_root: Path which contains host-driven test files.
154 is_official_build: Whether this is an official build.
155 kwargs: Keyword args to pass into the constructor of test cases.
156
157 Returns:
158 List of test case objects, one for each available test method.
159 """
160 if not test_root:
161 return []
162 all_tests = []
163 test_module_list = _GetTestModules(test_root, is_official_build)
164 for module in test_module_list:
165 all_tests.extend(_GetTestsFromModule(module, **kwargs))
166 return all_tests
167
168
169 def InstrumentationSetup(host_driven_test_root, official_build,
170 instrumentation_options):
171 """Creates a list of host-driven instrumentation tests and a runner factory.
172
173 Args:
174 host_driven_test_root: Directory where the host-driven tests are.
175 official_build: True if this is an official build.
176 instrumentation_options: An InstrumentationOptions object.
177
178 Returns:
179 A tuple of (TestRunnerFactory, tests).
180 """
181
182 test_collection = test_info_collection.TestInfoCollection()
183 all_tests = _GetAllTests(
184 host_driven_test_root, official_build,
185 instrumentation_options=instrumentation_options)
186 test_collection.AddTests(all_tests)
187
188 available_tests = test_collection.GetAvailableTests(
189 instrumentation_options.annotations,
190 instrumentation_options.exclude_annotations,
191 instrumentation_options.test_filter)
192 logging.debug('All available tests: ' + str(
193 [t.tagged_name for t in available_tests]))
194
195 def TestRunnerFactory(device, shard_index):
196 return test_runner.HostDrivenTestRunner(
197 device, shard_index,
198 instrumentation_options.tool)
199
200 return (TestRunnerFactory, available_tests)
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