📌 Add Snapshot Tests for CLI Output

[naheel0]

📌 Add Snapshot Tests for CLI Output

Description

We need to add snapshot tests to ensure that the CLI output of the project does not change unexpectedly after dependency updates or new features. Snapshot tests will automatically detect regressions in output formatting or messages.

Tasks

• Configure Jest to support snapshot testing (already included if Jest is installed)
• Create a snapshot test file for the CLI (tests/cli.snapshot.test.js)
• Capture current CLI output for representative errors (e.g., ReferenceError, TypeError)
• Commit initial snapshots
• Ensure tests pass with npm test

Expected Outcome

• CLI output is tested for regressions
• Any unintentional changes in output are caught automatically
• Future dependency updates or refactors will be safer

Additional Notes

• Snapshot testing is optional but recommended to maintain output consistency
• Can be integrated into CI/CD to automatically verify PRs