Configure test coverage files and add tests

[zkoppert]

Pull Request

Proposed Changes

fixes #5

This pull request includes changes to improve the test coverage and code quality. The most important changes include adding a .coveragerc file to omit test files from coverage, increasing the coverage threshold in the Makefile, adding # pragma: no cover to the main() function in evergreen.py, and modifying test cases in test_dependabot_file.py and test_evergreen.py.

Coverage improvements:

• .coveragerc: Added a new file to omit test files from coverage.
• Makefile: Increased the coverage threshold from 50 to 80.
• evergreen.py: Added # pragma: no cover to the main() function to exclude it from coverage. [1] [2]

Test case modifications:

• test_dependabot_file.py: Modified test cases to check for more filenames and added a new test case to handle a 404 error. [1] [2] [3] [4] [5] [6] [7]
• test_evergreen.py: Added new test cases for the commit_changes, check_pending_pulls_for_duplicates, and get_repos_iterator functions. [1] [2]

Readiness Checklist

Author/Contributor

• If documentation is needed for this change, has that been included in this pull request
• run make lint and fix any issues that you have introduced
• run make test and ensure you have test coverage for the lines you are introducing

Reviewer

• Label as either bug, documentation, enhancement, infrastructure, or breaking