Added testcases for OrderBy.js util

[NitinRamnani]

Description

Added testcases for OrderBy Util and improved test coverage.

Related Issue

• Fixes

Motivation and Context

How Has This Been Tested?

• test environment:
• test case 1:
• test case 2:
• ...

Screenshots (if appropriate):

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)
• [ ] Technical debt
• [x] Tests

Checklist:

• [ ] Code changes
• [x] Unit tests added
• [x] Acceptance tests added
• [ ] Documentation added/updated

Open tasks:

• [ ] ...

[update-docs[bot]]

Thanks for opening this pull request! The maintainers of this repository would appreciate it if you would create a changelog item based on your changes.

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