Here's the code I add at the end of the file:
def test_basic_groups():
G = SymmetricGroup(5)
elements = list(G.generate())
assert len(elements) == 120
assert G.is_solvable() == False
C = CyclicGroup(10)
elements = list(C.generate())
assert len(elements) == 10
assert (C.commutator()).order() == 1
D = DihedralGroup(6)
elements = list(D.generate())
assert len(elements) == 12
A = AlternatingGroup(5)
elements = list(A.generate())
assert len(elements) == 60
assert [perm.is_even for perm in elements] == [True]*60
def test_direct_product():
C = CyclicGroup(4)
assert (C*C).order() == 16
What is even more peculiar is that when I exchange the order of the
two functions, everything is ok again.
On May 27, 5:08 pm, Aleksandar Makelov <[email protected]>
wrote:
> Hi all,
>
> I've been writing some tests in sympy/combinatorics/test/
> test_perm_groups.py for the new functionality I implemented in sympy/
> combinatorics/perm_groups.py. I added two test functions and got the
> following:
>
> ============================= test process starts
> ==============================
> executable: /usr/bin/python (2.7.3-final-0)
> architecture: 32-bit
> cache: yes
> ground types: python
> random seed: 93988690
>
> Traceback (most recent call last):
> File "<stdin>", line 1, in <module>
> File "sympy/utilities/runtests.py", line 324, in test
> return t.test(sort=sort, timeout=timeout, slow=slow)
> File "sympy/utilities/runtests.py", line 648, in test
> self.test_file(f, sort, timeout, slow)
> File "sympy/utilities/runtests.py", line 695, in test_file
> funcs.sort(key=lambda x: inspect.getsourcelines(x)[1])
> File "sympy/utilities/runtests.py", line 695, in <lambda>
> funcs.sort(key=lambda x: inspect.getsourcelines(x)[1])
> File "/usr/lib/python2.7/inspect.py", line 690, in getsourcelines
> lines, lnum = findsource(object)
> File "/usr/lib/python2.7/inspect.py", line 580, in findsource
> if pat.match(lines[lnum]): break
> IndexError: list index out of range
>
> When I remove the second test function I added, everything is ok
> again:
>
> ============================= test process starts
> ==============================
> executable: /usr/bin/python (2.7.3-final-0)
> architecture: 32-bit
> cache: yes
> ground types: python
> random seed: 69800657
>
> sympy/combinatorics/tests/
> test_perm_groups.py[16] ....f........... [OK]
>
> ======== tests finished: 15 passed, 1 expected to fail, in 0.64
> seconds ========
> True
>
> This has already happened with two different test functions, so I
> guess the problem is more general. Am I doing something wrong, or is
> this a more general issue?
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