[BUGFIX] Make sure that the "hyperopt" directory in the local repository path is deleted after test run is completed

[alexsherstinsky]

Scope

When the test tests/integration_tests/test_automl.py::test_auto_train is executed, the "hyperopt" directory remains in the main repository directory. We clean this directory up by passing the output_directory argument to auto_train(). By making this output_directory a relative path from the tmpdir fixture, it will be automatically deleted upon the completion of the test.

Code Pull Requests

Please provide the following:

• a clear explanation of what your code does
• if applicable, a reference to an issue
• a reproducible test for your PR (code, config and data sample)

Documentation Pull Requests

Note that the documentation HTML files are in docs/ while the Markdown sources are in mkdocs/docs.

If you are proposing a modification to the documentation you should change only the Markdown files.

api.md is automatically generated from the docstrings in the code, so if you want to change something in that file, first modify ludwig/api.py docstring, then run mkdocs/code_docs_autogen.py, which will create mkdocs/docs/api.md .

[github-actions]

Unit Test Results

  6 files  ±0    6 suites  ±0   17m 57s ⏱️ - 4m 56s
12 tests ±0    7 ✔️  -   2    5 💤 +  2  0 ❌ ±0 
60 runs  ±0  30 ✔️  - 12  30 💤 +12  0 ❌ ±0 

Results for commit 9eb158e. ± Comparison against base commit c711d0a.

This pull request skips 2 tests.

tests.regression_tests.benchmark.test_model_performance ‑ test_performance[ames_housing.gbm.yaml]
tests.regression_tests.benchmark.test_model_performance ‑ test_performance[mercedes_benz_greener.gbm.yaml]