1 # Copyright (C) 2010 Google Inc. All rights reserved.
3 # Redistribution and use in source and binary forms, with or without
4 # modification, are permitted provided that the following conditions are
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
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14 # contributors may be used to endorse or promote products derived from
15 # this software without specific prior written permission.
17 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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19 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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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
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27 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 # FIXME: This probably belongs in the buildbot module.
31 class RegressionWindow(object):
32 def __init__(self, build_before_failure, failing_build, failing_tests=None):
33 self._build_before_failure = build_before_failure
34 self._failing_build = failing_build
35 self._failing_tests = failing_tests
36 self._revisions = None
38 def build_before_failure(self):
39 return self._build_before_failure
41 def failing_build(self):
42 return self._failing_build
44 def failing_tests(self):
45 return self._failing_tests
48 # Cache revisions to avoid excessive allocations.
49 if not self._revisions:
50 self._revisions = range(self._failing_build.revision(), self._build_before_failure.revision(), -1)
51 self._revisions.reverse()
52 return self._revisions