leif wrote:
> Francois Bissey wrote:
>> The failing doctests are
>> sage -t --long
>> /usr/lib64/python2.7/site-packages/sage/rings/integer.pyx # 1 doctest
>> failed
>> sage -t --long /usr/lib64/python2.7/site-packages/sage/ext/memory.pyx
>> # 1 doctest failed
>> gmp and mpir report errors differently. There is not much we can do
>> for these two but they
>> are not about mathematical output.
>
> Hmmm, I *think* we can mark them '# optional -- mpir' (and add modified
> copies with '# optional -- gmp').
Yep, for example the following works:
diff --git a/src/sage/ext/memory.pyx b/src/sage/ext/memory.pyx
index fe8278f..a6114eb 100644
--- a/src/sage/ext/memory.pyx
+++ b/src/sage/ext/memory.pyx
@@ -6,11 +6,16 @@ TESTS:
Check that a ``MemoryError`` is raised if we try to allocate a
ridiculously large integer, see :trac:`15363`::
- sage: 2^(2^63-2)
+ sage: 2^(2^63-2) # optional -- mpir
Traceback (most recent call last):
...
RuntimeError: exponent must be at most 2147483647 # 32-bit
MemoryError: failed to allocate 1152921504606847008 bytes # 64-bit
+ sage: 2^(2^63-2) # optional -- gmp # not tested
+ gmp: overflow in mpz type
+ Traceback (most recent call last):
+ ...
+ RuntimeError: Aborted
AUTHORS:
diff --git a/src/sage/rings/integer.pyx b/src/sage/rings/integer.pyx
index 53f4da4..0d5e701 100644
--- a/src/sage/rings/integer.pyx
+++ b/src/sage/rings/integer.pyx
@@ -6043,11 +6043,16 @@ cdef class
Integer(sage.structure.element.EuclideanDomainElement):
TESTS::
- sage: 1 << (2^60)
+ sage: 1 << (2^60) # optional -- mpir
Traceback (most recent call last):
...
MemoryError: failed to allocate ... bytes # 64-bit
OverflowError: ... # 32-bit
+ sage: 1 << (2^60) # optional -- gmp # not tested
+ gmp: overflow in mpz type
+ Traceback (most recent call last):
+ ...
+ RuntimeError: Aborted
"""
cdef long n
(The '# not tested' in addition is necessary because of the abort() /
RunTimeError. Not sure whether we could catch that on the Cython level,
but AFAIK GMP intentionally bails out on such errors; there's no way to
resume from them as is.)
-leif
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