Error: not divisible in FreeAlgebra.create unit test
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- Macaulay2
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Description
From an [amd64 PPA build](https://launchpadlibrarian.net/572902367/buildlog_ubuntu-impish-amd64.macaulay2_1.19.1.1+git202112072115-0ppa202112032154~ubuntu21.10.1_BUILDING.txt.gz) of the development branch:
```
[----------] 5 tests from FreeAlgebra
[ RUN ] FreeAlgebra.create
Error: not divisible
NCGroebnerTest.cpp:270: Failure
Value of: false
Actual: false
Expected: true
[ FAILED ] FreeAlgebra.create (0 ms)
[ RUN ] FreeAlgebra.polyarithmetic
[ OK ] FreeAlgebra.polyarithmetic (0 ms)
[ RUN ] FreeAlgebra.quotientArithmetic
[ OK ] FreeAlgebra.quotientArithmetic (0 ms)
[ RUN ] FreeAlgebra.comparisons
[ OK ] FreeAlgebra.comparisons (0 ms)
[ RUN ] FreeAlgebra.spairs
[ OK ] FreeAlgebra.spairs (0 ms)
[----------] 5 tests from FreeAlgebra (1 ms total)
```
Possibly related to #2324?
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Research direction
Start with the FreeAlgebra.create test and the failure at NCGroebnerTest.cpp:270, then compare its output with the linked amd64 PPA build log. Determine why the test reports “Error: not divisible” while the other FreeAlgebra tests pass. Done means the failure is understood and FreeAlgebra.create passes reliably.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- testing-qa
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100