Adds a CI job for testing code changes against known samples on the m…

[jeFF0Falltrades]

…ain repo

Going to test this out as an initial stab at having a test pipeline at the very least for the main repository.

It includes a test suite and an encrypted ZIP of known samples that I would rather not propagate via the repo plainly, so the CI job is set up to decrypt and test against these only for PRs that are being merged or sourced from the main repo itself (though the hashes are plain to see if other researchers wish to download and test against them).

We'll adjust this as needed.

[gemini-code-assist]

Summary of Changes

Hello @jeFF0Falltrades, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request establishes a foundational testing pipeline for the main repository by integrating a new CI job. The primary goal is to ensure the rat-king-parser accurately extracts configuration details from known malware samples. This is achieved through a pytest-based test suite that processes encrypted samples (only accessible within the main repo's CI environment) and compares the parser's output against expected results, thereby enhancing the reliability and correctness of the parsing logic.

Highlights

• New CI Job for Malware Sample Testing: A new Continuous Integration (CI) job has been introduced to test the parser against a collection of known malware samples, ensuring the accuracy and reliability of configuration extraction.
• Dedicated Pytest Test Suite: A dedicated test suite, test_known_samples.py, has been added, utilizing pytest to validate the parser's output against pre-defined expected JSON configurations for these samples.
• Version Increment: The project version has been incremented from 4.2.1 to 4.2.2 in src/rat_king_parser/_version.py.
• Updated Build and Ignore Configurations: Configuration files (.gitignore, pyproject.toml) have been updated to support the new testing infrastructure, including ignoring sample directories and adding pytest as a development dependency.

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Ignored Files

• Ignored by pattern: .github/workflows/** (1)
  • .github/workflows/ci.yml

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[gemini-code-assist]

Code Review

This pull request introduces a CI job to test code changes against a suite of known samples, which is a great step towards ensuring the parser's reliability. The changes include adding test dependencies, version bumping, and creating the test suite itself along with expected outputs. The test implementation is robust, with good use of pytest features for parameterization and conditional skipping. I have one suggestion to make the code for finding sample files more concise and Pythonic.