Added unit test for singular and incomplete advanced basis start #678
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
This follows from the comment by @chrhansk in #669 about the way he was using HiGHS (He's solving NLPs by SLP, it would seem). I wanted to confirm that accommodateAlienBasis can handle a basis that's an old optimal basis extended with both a row and column, and with matrix coefficients changed so that it's got numerical rank deficiency.