Hotfix for 1D weights

Add tests for determinism warnings

Clean up testing code

Add early stop conditions to force speed testing

Add determinism-based scikit-learn tests back

Supress progress output for tests

Ensure iteration completes for multioutput test

More helpful error message for sklearn tests

Soft fail tests which require determinism

New updated checkpoint loading and tests

Added pickle support

Automatically skip pickling tests

Ensure large size test quits early even with fail

Print details of scikit-learn checks and failures

More descriptive name for warm_start test

Change back default test kwargs

Speed up scikit-learn tests

Move scikit-learn test to miscellaneous tests

Add ScikitLearn check_estimator test

Add another selection test, but with numpy arrays

Merge branch 'master' into pr/tttc3/146

Fix select_k_features test

Merge branch 'master' into refactor-PySRRegressor

Correct use of Xresampled

Merge branch 'master' into pr/tttc3/146

Format code with black

Add more reliable test of feature selection

Tidy up

Updated tests for compatibility with refactor

Format code with black

Make flaky test optional passing

Add more helpful warnings

Add test for custom complexities

Add constraints test with custom operator

Format code with black

Add nested_constraints feature

Format code with black

Tweak deprecation test for UserWarning

Add test for deprecations

Force array copy in test to try to prevent error

Make pipeline tests reproducibile

Make tests always choose most accurate equation

Roll back some test changes for new hyperparams

Double default populations in test

Fix model_selection in test

Change default test kwargs to accurate model selection

Format code with black

Double default niterations in test

Change default test parameters

Make function names work when custom function has underscore