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      1 # Copyright (C) 2010 Google Inc. All rights reserved.
      2 #
      3 # Redistribution and use in source and binary forms, with or without
      4 # modification, are permitted provided that the following conditions are
      5 # met:
      6 #
      7 #    * Redistributions of source code must retain the above copyright
      8 # notice, this list of conditions and the following disclaimer.
      9 #    * Redistributions in binary form must reproduce the above
     10 # copyright notice, this list of conditions and the following disclaimer
     11 # in the documentation and/or other materials provided with the
     12 # distribution.
     13 #    * Neither the name of Google Inc. nor the names of its
     14 # contributors may be used to endorse or promote products derived from
     15 # this software without specific prior written permission.
     16 #
     17 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     18 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     19 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     20 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     21 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     22 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     23 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     24 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     25 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     26 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     27 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     28 
     29 import os
     30 import sys
     31 import unittest
     32 
     33 from webkitpy.common.system import executive
     34 from webkitpy.common.system import executive_mock
     35 from webkitpy.common.system import filesystem
     36 from webkitpy.common.system import filesystem_mock
     37 from webkitpy.common.system import outputcapture
     38 
     39 import config
     40 
     41 
     42 def mock_run_command(arg_list):
     43     # Set this to True to test actual output (where possible).
     44     integration_test = False
     45     if integration_test:
     46         return executive.Executive().run_command(arg_list)
     47 
     48     if 'webkit-build-directory' in arg_list[1]:
     49         return mock_webkit_build_directory(arg_list[2:])
     50     return 'Error'
     51 
     52 
     53 def mock_webkit_build_directory(arg_list):
     54     if arg_list == ['--top-level']:
     55         return '/WebKitBuild'
     56     elif arg_list == ['--configuration', '--debug']:
     57         return '/WebKitBuild/Debug'
     58     elif arg_list == ['--configuration', '--release']:
     59         return '/WebKitBuild/Release'
     60     return 'Error'
     61 
     62 
     63 class ConfigTest(unittest.TestCase):
     64     def tearDown(self):
     65         config.clear_cached_configuration()
     66 
     67     def make_config(self, output='', files={}, exit_code=0, exception=None,
     68                     run_command_fn=None):
     69         e = executive_mock.MockExecutive2(output=output, exit_code=exit_code,
     70                                           exception=exception,
     71                                           run_command_fn=run_command_fn)
     72         fs = filesystem_mock.MockFileSystem(files)
     73         return config.Config(e, fs)
     74 
     75     def assert_configuration(self, contents, expected):
     76         # This tests that a configuration file containing
     77         # _contents_ ends up being interpreted as _expected_.
     78         c = self.make_config('foo', {'foo/Configuration': contents})
     79         self.assertEqual(c.default_configuration(), expected)
     80 
     81     def test_build_directory(self):
     82         # --top-level
     83         c = self.make_config(run_command_fn=mock_run_command)
     84         self.assertTrue(c.build_directory(None).endswith('WebKitBuild'))
     85 
     86         # Test again to check caching
     87         self.assertTrue(c.build_directory(None).endswith('WebKitBuild'))
     88 
     89         # Test other values
     90         self.assertTrue(c.build_directory('Release').endswith('/Release'))
     91         self.assertTrue(c.build_directory('Debug').endswith('/Debug'))
     92         self.assertRaises(KeyError, c.build_directory, 'Unknown')
     93 
     94     def test_build_dumprendertree__success(self):
     95         c = self.make_config(exit_code=0)
     96         self.assertTrue(c.build_dumprendertree("Debug"))
     97         self.assertTrue(c.build_dumprendertree("Release"))
     98         self.assertRaises(KeyError, c.build_dumprendertree, "Unknown")
     99 
    100     def test_build_dumprendertree__failure(self):
    101         c = self.make_config(exit_code=-1)
    102 
    103         # FIXME: Build failures should log errors. However, the message we
    104         # get depends on how we're being called; as a standalone test,
    105         # we'll get the "no handlers found" message. As part of
    106         # test-webkitpy, we get the actual message. Really, we need
    107         # outputcapture to install its own handler.
    108         oc = outputcapture.OutputCapture()
    109         oc.capture_output()
    110         self.assertFalse(c.build_dumprendertree('Debug'))
    111         oc.restore_output()
    112 
    113         oc.capture_output()
    114         self.assertFalse(c.build_dumprendertree('Release'))
    115         oc.restore_output()
    116 
    117     def test_default_configuration__release(self):
    118         self.assert_configuration('Release', 'Release')
    119 
    120     def test_default_configuration__debug(self):
    121         self.assert_configuration('Debug', 'Debug')
    122 
    123     def test_default_configuration__deployment(self):
    124         self.assert_configuration('Deployment', 'Release')
    125 
    126     def test_default_configuration__development(self):
    127         self.assert_configuration('Development', 'Debug')
    128 
    129     def test_default_configuration__notfound(self):
    130         # This tests what happens if the default configuration file
    131         # doesn't exist.
    132         c = self.make_config(output='foo', files={'foo/Configuration': None})
    133         self.assertEqual(c.default_configuration(), "Release")
    134 
    135     def test_default_configuration__unknown(self):
    136         # Ignore the warning about an unknown configuration value.
    137         oc = outputcapture.OutputCapture()
    138         oc.capture_output()
    139         self.assert_configuration('Unknown', 'Unknown')
    140         oc.restore_output()
    141 
    142     def test_default_configuration__standalone(self):
    143         # FIXME: This test runs a standalone python script to test
    144         # reading the default configuration to work around any possible
    145         # caching / reset bugs. See https://bugs.webkit.org/show_bug?id=49360
    146         # for the motivation. We can remove this test when we remove the
    147         # global configuration cache in config.py.
    148         e = executive.Executive()
    149         fs = filesystem.FileSystem()
    150         c = config.Config(e, fs)
    151         script = c.path_from_webkit_base('Tools', 'Scripts',
    152             'webkitpy', 'layout_tests', 'port', 'config_standalone.py')
    153 
    154         # Note: don't use 'Release' here, since that's the normal default.
    155         expected = 'Debug'
    156 
    157         args = [sys.executable, script, '--mock', expected]
    158         actual = e.run_command(args).rstrip()
    159         self.assertEqual(actual, expected)
    160 
    161     def test_default_configuration__no_perl(self):
    162         # We need perl to run webkit-build-directory to find out where the
    163         # default configuration file is. See what happens if perl isn't
    164         # installed. (We should get the default value, 'Release').
    165         c = self.make_config(exception=OSError)
    166         actual = c.default_configuration()
    167         self.assertEqual(actual, 'Release')
    168 
    169     def test_default_configuration__scripterror(self):
    170         # We run webkit-build-directory to find out where the default
    171         # configuration file is. See what happens if that script fails.
    172         # (We should get the default value, 'Release').
    173         c = self.make_config(exception=executive.ScriptError())
    174         actual = c.default_configuration()
    175         self.assertEqual(actual, 'Release')
    176 
    177     def test_path_from_webkit_base(self):
    178         # FIXME: We use a real filesystem here. Should this move to a
    179         # mocked one?
    180         c = config.Config(executive.Executive(), filesystem.FileSystem())
    181         self.assertTrue(c.path_from_webkit_base('foo'))
    182 
    183     def test_webkit_base_dir(self):
    184         # FIXME: We use a real filesystem here. Should this move to a
    185         # mocked one?
    186         c = config.Config(executive.Executive(), filesystem.FileSystem())
    187         base_dir = c.webkit_base_dir()
    188         self.assertTrue(base_dir)
    189         self.assertNotEqual(base_dir[-1], '/')
    190 
    191         orig_cwd = os.getcwd()
    192         if sys.platform == 'win32':
    193             os.chdir(os.environ['USERPROFILE'])
    194         else:
    195             os.chdir(os.environ['HOME'])
    196         c = config.Config(executive.Executive(), filesystem.FileSystem())
    197         try:
    198             base_dir_2 = c.webkit_base_dir()
    199             self.assertEqual(base_dir, base_dir_2)
    200         finally:
    201             os.chdir(orig_cwd)
    202 
    203 
    204 if __name__ == '__main__':
    205     unittest.main()
    206