id summary reporter owner description type status priority milestone component resolution keywords cc merged author reviewer upstream work_issues branch commit dependencies stopgaps
29787 1 optional internet oeis doctest failing (busy beaver ordering) slabbe "With `SageMath version 9.2.beta0, Release Date: 2020-05-28`
{{{
sage -t --optional=sage,internet src/sage/databases/oeis.py
}}}
gives:
{{{
sage -t --long src/sage/databases/oeis.py
**********************************************************************
File ""src/sage/databases/oeis.py"", line 489, in sage.databases.oeis.OEIS.find_by_description
Failed example:
oeis('beaver', max_results=4, first_result=2) # optional -- internet
Expected:
0: A131956: Busy Beaver variation: maximum number of steps for ...
1: A141475: Number of Turing machines with n states following ...
2: A131957: Busy Beaver sigma variation: maximum number of 1's ...
3: A...: ...
Got:
0: A131956: Busy Beaver variation: maximum number of steps for a 2-state, 2-symbol Turing machine running on a tape which is initialized with the number n in binary and 0's everywhere else. The machine is started at the rightmost bit in the number n.
1: A141475: Number of Turing machines with n states following the standard formalism of the busy beaver problem where the head of a Turing machine either moves to the right or to the left, but none once halted.
2: A333479: Busy Beaver for binary lambda calculus: the maximum normal form size of any closed lambda term of size n, or 0 if no closed term of size n exists.
3: A131957: Busy Beaver sigma variation: maximum number of 1's on the final tape, for a 2-state, 2-symbol Turing machine running on a tape which is initialized with the number n in binary and 0's everywhere else. The machine is started at the rightmost bit in the number n.
**********************************************************************
1 item had failures:
1 of 5 in sage.databases.oeis.OEIS.find_by_description
5 webbrowser tests not run
0 tests not run because we ran out of time
[281 tests, 1 failure, 34.75 s]
}}}" defect closed minor sage-9.2 doctest coverage fixed Frédéric Chapoton Travis Scrimshaw N/A cf800be33067884454dddcf7dac4760d288862e1 cf800be33067884454dddcf7dac4760d288862e1