feat(improvement): cli tests and its improvements

[sundaram2021]

Summary

Brief description of what this PR does and why. added tests for cli and code improvements . two new flags were added -r for realtime port and -d for data dir setup. Functionality will be same as previous but with new flags.

Fixes #(issue)

Type of Change

• [ ] Bug fix
• [ ] New feature
• [ x] Breaking change
• [ ] Documentation
• [ ] Other: ___________

Testing

How has this been tested? What should reviewers focus on?

Checklist

• [ ] Code follows project style guidelines
• [ ] Self-reviewed my changes
• [ ] Tests added/updated and passing
• [ ] No new warnings introduced
• [ ] I confirm that I have read and agree to the terms outlined in the Contributor License Agreement (CLA)

Screenshots/Videos

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[sundaram2021]

hey guys can you look into PR and let me know if there is any change you want @yesoreyeram @gabelazo @AdityaSetyadi