#20446: GLPKExactBackend - a variation on GLPKBackend that sets a solver
parameter
and signals errors on integer variables
-------------------------------------+-------------------------------------
Reporter: mkoeppe | Owner:
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-7.2
Component: numerical | Resolution:
Keywords: lp | Merged in:
Authors: Matthias Koeppe | Reviewers: Dima Pasechnik
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/mkoeppe/glpkexactbackend___a_variation_on_glpkbackend_that_sets_a_solver_parameter_and_signals_errors_on_integer_variables|
c0fa6b4919b236a385b66975e91c43b419aafd36
Dependencies: | Stopgaps:
-------------------------------------+-------------------------------------
Changes (by vbraun):
* status: positive_review => needs_work
Comment:
{{{
sage -t --long src/sage/numerical/backends/glpk_exact_backend.pyx
**********************************************************************
File "src/sage/numerical/backends/glpk_exact_backend.pyx", line 33, in
sage.numerical.backends.glpk_exact_backend.GLPKExactBackend
Failed example:
TestSuite(p.get_backend()).run(skip="_test_pickling")
Expected nothing
Got:
Failure in _test_copy:
Traceback (most recent call last):
File "/mnt/disk/home/buildslave-
sage/slave/sage_git/build/local/lib/python2.7/site-
packages/sage/misc/sage_unittest.py", line 283, in run
test_method(tester = tester)
File "sage/numerical/backends/generic_backend.pyx", line 1127, in
sage.numerical.backends.generic_backend.GenericBackend._test_copy
(/mnt/disk/home/buildslave-
sage/slave/sage_git/build/src/build/cythonized/sage/numerical/backends/generic_backend.c:10824)
self._do_test_problem_data(tester, cp)
File "sage/numerical/backends/generic_backend.pyx", line 1095, in
sage.numerical.backends.generic_backend.GenericBackend._do_test_problem_data
(/mnt/disk/home/buildslave-
sage/slave/sage_git/build/src/build/cythonized/sage/numerical/backends/generic_backend.c:10504)
tester.assertEqual(type(self), type(cp),
File "/mnt/disk/home/buildslave-
sage/slave/sage_git/build/local/lib/python/unittest/case.py", line 515, in
assertEqual
assertion_func(first, second, msg=msg)
File "/mnt/disk/home/buildslave-
sage/slave/sage_git/build/local/lib/python/unittest/case.py", line 508, in
_baseAssertEqual
raise self.failureException(msg)
AssertionError: Classes do not match
------------------------------------------------------------
Failure in _test_copy_does_not_share_data:
Traceback (most recent call last):
File "/mnt/disk/home/buildslave-
sage/slave/sage_git/build/local/lib/python2.7/site-
packages/sage/misc/sage_unittest.py", line 283, in run
test_method(tester = tester)
File "sage/numerical/backends/generic_backend.pyx", line 1137, in
sage.numerical.backends.generic_backend.GenericBackend._test_copy_does_not_share_data
(/mnt/disk/home/buildslave-
sage/slave/sage_git/build/src/build/cythonized/sage/numerical/backends/generic_backend.c:11033)
self._do_test_problem_data(tester, cpcp)
File "sage/numerical/backends/generic_backend.pyx", line 1095, in
sage.numerical.backends.generic_backend.GenericBackend._do_test_problem_data
(/mnt/disk/home/buildslave-
sage/slave/sage_git/build/src/build/cythonized/sage/numerical/backends/generic_backend.c:10504)
tester.assertEqual(type(self), type(cp),
File "/mnt/disk/home/buildslave-
sage/slave/sage_git/build/local/lib/python/unittest/case.py", line 515, in
assertEqual
assertion_func(first, second, msg=msg)
File "/mnt/disk/home/buildslave-
sage/slave/sage_git/build/local/lib/python/unittest/case.py", line 508, in
_baseAssertEqual
raise self.failureException(msg)
AssertionError: Classes do not match
------------------------------------------------------------
Failure in _test_copy_some_mips:
Traceback (most recent call last):
File "/mnt/disk/home/buildslave-
sage/slave/sage_git/build/local/lib/python2.7/site-
packages/sage/misc/sage_unittest.py", line 283, in run
test_method(tester = tester)
File "sage/numerical/backends/generic_backend.pyx", line 1151, in
sage.numerical.backends.generic_backend.GenericBackend._test_copy_some_mips
(/mnt/disk/home/buildslave-
sage/slave/sage_git/build/src/build/cythonized/sage/numerical/backends/generic_backend.c:11276)
p._test_copy(**options)
File "sage/numerical/backends/generic_backend.pyx", line 1127, in
sage.numerical.backends.generic_backend.GenericBackend._test_copy
(/mnt/disk/home/buildslave-
sage/slave/sage_git/build/src/build/cythonized/sage/numerical/backends/generic_backend.c:10824)
self._do_test_problem_data(tester, cp)
File "sage/numerical/backends/generic_backend.pyx", line 1095, in
sage.numerical.backends.generic_backend.GenericBackend._do_test_problem_data
(/mnt/disk/home/buildslave-
sage/slave/sage_git/build/src/build/cythonized/sage/numerical/backends/generic_backend.c:10504)
tester.assertEqual(type(self), type(cp),
File "/mnt/disk/home/buildslave-
sage/slave/sage_git/build/local/lib/python/unittest/case.py", line 515, in
assertEqual
assertion_func(first, second, msg=msg)
File "/mnt/disk/home/buildslave-
sage/slave/sage_git/build/local/lib/python/unittest/case.py", line 508, in
_baseAssertEqual
raise self.failureException(msg)
AssertionError: Classes do not match
------------------------------------------------------------
The following tests failed: _test_copy,
_test_copy_does_not_share_data, _test_copy_some_mips
**********************************************************************
1 item had failures:
1 of 3 in sage.numerical.backends.glpk_exact_backend.GLPKExactBackend
[26 tests, 1 failure, 0.12 s]
}}}
--
Ticket URL: <http://trac.sagemath.org/ticket/20446#comment:23>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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