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Viewing changes to bzrlib/tests/test_strace.py

  • Committer: John Arbash Meinel
  • Date: 2007-11-30 23:18:15 UTC
  • mto: This revision was merged to the branch mainline in revision 3072.
  • Revision ID: john@arbash-meinel.com-20071130231815-0r6ce70307kmv28r
Use a Graph.heads() check to determine if the ancestries are compatible.
Whether we should do nothing because source is already ahead,
raise an exception because we have diverged,
or move forward because the new revision is a tip revision.

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bzrlib/tests/test_strace.py
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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 
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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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import threading
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from bzrlib import (
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    tests,
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    )
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from bzrlib.strace import StraceFeature, strace_detailed, StraceResult
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class TestStraceFeature(tests.TestCaseWithTransport):
 
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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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        self.assertEqual(found_strace, StraceFeature.available())
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class TestStrace(tests.TestCaseWithTransport):
 
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class TestStrace(TestCaseWithTransport):
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    _test_needs_features = [StraceFeature]
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    def _check_threads(self):
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        # For bug #226769, it was decided that the strace tests should not be
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        # run when more than one thread is active. A lot of tests are currently
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        # leaking threads for good or bad reasons, once they are fixed or
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        # strace itself is fixed (bug #103133), we can get rid of the
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        # restriction.
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        active = threading.activeCount()
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        if active > 1: # There is always the main thread at least
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            raise tests.KnownFailure(
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                '%d active threads, bug #103133 needs to be fixed.' % active)
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    def test_strace_callable_is_called(self):
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        self._check_threads()
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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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        self.assertEqual([("a", ("b",), {"c":"c"})], output)
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    def test_strace_callable_result(self):
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        self._check_threads()
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        def function():
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            return "foo"
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        result, strace_result = strace_detailed(function,[], {},
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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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        self._check_threads()
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        def function():
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            self.build_tree(['myfile'])
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        unused, result = strace_detailed(function, [], {},