On Ubuntu 18.04 running on a bi-Xeon E5-2623 (8 cores) + 16 GB RAM computer:
- incremental build (with -j16) from 9.1.beta2: OK
- make ptestlong reports 1 failure:
sage -t --long --warn-long 53.7 src/sage/groups/cubic_braid.py # 1 doctest
failed
Details in the attached log.
The test is passed when run standalone.
Eric.
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sage -t --long --warn-long 53.7 src/sage/groups/cubic_braid.py
**********************************************************************
File "src/sage/groups/cubic_braid.py", line 758, in
sage.groups.cubic_braid.CubicBraidGroup.__init__
Failed example:
TestSuite(C6).run() # long time
Expected nothing
Got:
Failure in _test_matrix_group:
Traceback (most recent call last):
File "sage/misc/cachefunc.pyx", line 1943, in
sage.misc.cachefunc.CachedMethodCaller.__call__
(build/cythonized/sage/misc/cachefunc.c:10139)
return cache[k]
KeyError: ((None, None, 5, 't', False), ())
<BLANKLINE>
During handling of the above exception, another exception occurred:
<BLANKLINE>
Traceback (most recent call last):
File
"/home/eric/sage/9.1.develop/local/lib/python3.7/site-packages/sage/misc/sage_unittest.py",
line 296, in run
test_method(tester=tester)
File
"/home/eric/sage/9.1.develop/local/lib/python3.7/site-packages/sage/groups/cubic_braid.py",
line 939, in _test_matrix_group
matrix_grpF5 = self.as_matrix_group(characteristic=5)
File "sage/misc/cachefunc.pyx", line 1948, in
sage.misc.cachefunc.CachedMethodCaller.__call__
(build/cythonized/sage/misc/cachefunc.c:10273)
w = self._instance_call(*args, **kwds)
File "sage/misc/cachefunc.pyx", line 1824, in
sage.misc.cachefunc.CachedMethodCaller._instance_call
(build/cythonized/sage/misc/cachefunc.c:9758)
return self.f(self._instance, *args, **kwds)
File
"/home/eric/sage/9.1.develop/local/lib/python3.7/site-packages/sage/groups/cubic_braid.py",
line 1520, in as_matrix_group
raise ValueError("Burau representation does not factor through the
relations")
ValueError: Burau representation does not factor through the relations
------------------------------------------------------------
The following tests failed: _test_matrix_group
**********************************************************************
1 item had failures:
1 of 17 in sage.groups.cubic_braid.CubicBraidGroup.__init__
[189 tests, 1 failure, 16.75 s]
