#13555: Doctests of random functions needs to be improved.
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Reporter: JoalHeagney | Owner: mvngu
Type: defect | Status: new
Priority: major | Milestone: sage-5.5
Component: doctest | Keywords: random, matrices,
random_matrix, properties of random objects, properties
Work issues: | Report Upstream: N/A
Reviewers: | Authors:
Merged in: | Dependencies:
Stopgaps: |
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Currently a lot of random functions are skipped during doc-testing, as
their results can't be predicted.
However, in ticket [http://trac.sagemath.org/sage_trac/ticket/13554
#13554], it is clear that errors are slipping through, and
__'''properties'''__ of random objects should be checked when possible.
For example, in ticket [http://trac.sagemath.org/sage_trac/ticket/13554
#13554], the generated matrices should at least be tested for the
following (if they aren't already):
* Presence of zero entries when method/documentation states that no zero
entries should be created, unless density= keyword is used.
* method=echelon_form produces matrices in echelon form.
* method=echelonizable can be echelonized.
* method=unimodular has a determinant of 1.
* method=diagonizable can be diagonalized and eigenvalues are integers.
* x= , y= has all entries between x (inclusive) and y (non-inclusive),
unless density= keyword is used and 0 isn't between x and y. (In that case
entries should be either between x and y, or zero.)
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13555>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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