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  • Committer: Robert Collins
  • Date: 2007-04-18 08:39:02 UTC
  • mto: (2425.1.2 integration)
  • mto: This revision was merged to the branch mainline in revision 2427.
  • Revision ID: robertc@robertcollins.net-20070418083902-4o66h9fk7zeisvwa
Command objects can now declare related help topics by having _see_also
set to a list of related topic. Updated the HACKING guide entry on
documentation to be more clear about how the help for commands is
generated and to reference this new feature. (Robert Collins)

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bzrlib/tests/test_strace.py
 
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# Copyright (C) 2007 Canonical Ltd
 
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#   Authors: Robert Collins <robert.collins@canonical.com>
 
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#
 
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# This program is free software; you can redistribute it and/or modify
 
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# it under the terms of the GNU General Public License as published by
 
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# the Free Software Foundation; either version 2 of the License, or
 
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# (at your option) any later version.
 
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#
 
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# This program is distributed in the hope that it will be useful,
 
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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# GNU General Public License for more details.
 
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#
 
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# You should have received a copy of the GNU General Public License
 
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# along with this program; if not, write to the Free Software
 
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
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"""Tests for the strace-invoking support."""
 
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import errno
 
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import subprocess
 
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from bzrlib.strace import StraceFeature, strace, StraceResult
 
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from bzrlib.tests import TestCaseWithTransport
 
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class TestStraceFeature(TestCaseWithTransport):
 
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    def test_strace_detection(self):
 
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        """Strace is available if its runnable."""
 
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        try:
 
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            proc = subprocess.Popen(['strace'],
 
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                stderr=subprocess.PIPE,
 
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                stdout=subprocess.PIPE)
 
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            proc.communicate()
 
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            found_strace = True
 
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        except OSError, e:
 
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            if e.errno == errno.ENOENT:
 
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                # strace is not installed
 
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                found_strace = False
 
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            else:
 
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                raise
 
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        self.assertEqual(found_strace, StraceFeature.available())
 
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class TestStrace(TestCaseWithTransport):
 
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    _test_needs_features = [StraceFeature]
 
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    def test_strace_callable_is_called(self):
 
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        output = []
 
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        def function(positional, *args, **kwargs):
 
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            output.append((positional, args, kwargs))
 
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        strace(function, "a", "b", c="c")
 
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        self.assertEqual([("a", ("b",), {"c":"c"})], output)
 
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    def test_strace_callable_result(self):
 
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        def function():
 
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            return "foo"
 
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        result, strace_result = strace(function)
 
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        self.assertEqual("foo", result)
 
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        self.assertIsInstance(strace_result, StraceResult)
 
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    def test_strace_result_has_raw_log(self):
 
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        """Checks that a reasonable raw strace log was found by strace."""
 
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        def function():
 
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            self.build_tree(['myfile'])
 
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        _, result = strace(function)
 
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        self.assertContainsRe(result.raw_log, 'myfile')