feat: Add testing framework to codmeod CLI

[mohebifar]

📚 Description

This PR revamps the testing framework for the jssg CLI command by introducing a modular architecture for test execution, configuration, and fixtures. It also introduces several new dependencies required to support these features and removes the now-obsolete Dockerfile.build.

Highlights:

• New CLI test command: Implements a new test.rs file to support test execution for codemods, including features like filtering, snapshot updating, concurrency, and error reporting.

• Modular test framework: Introduces a new testing module with dedicated submodules:

  • config.rs: Manages test options and reporter settings.
  • fixtures.rs: Handles test discovery, inputs/outputs, and fixture validation.
  • runner.rs: Orchestrates test runs and manages results.

• Dependency additions:

  • For CLI testing: libtest-mimic, similar, notify, regex, walkdir, tempfile, num_cpus, thiserror, and more.
  • Added ast-grep-language and updated related crates in Cargo.toml with simplified version declarations.

• Build simplification: Removes Dockerfile.build previously used for musl/OpenSSL builds, signaling a move away from Docker-based static linking.

These changes improve test ergonomics and make it easier to develop and run codemod tests across environments.

🔗 Linked Issue

🧪 Test Plan

• Ran the new jssg test command on existing codemods with success.
• Verified fixture discovery, parallel execution, and reporter output formats.
• Ensured no regressions in unrelated CLI functionality.

📄 Documentation to Update

• CLI usage docs to include new test command and configuration options.
• Internal developer guide to reflect new testing module layout and patterns.

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1 Skipped Deployment

Name	Status	Preview	Comments	Updated (UTC)
codemod	⬜️ Ignored (Inspect)	Visit Preview		Jun 13, 2025 4:47am

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commit: b04a97f