Refactor unit test cases to use JSON comparison (part 1)

[timkimadobe]

[!NOTE] This is the first part in a multi-part series of PRs that will refactor existing Edge extension unit and functional tests to use the JSON comparison tool from AEPTestUtils See part 2: #436

Description

This PR refactors some of the Edge extension unit tests to use JSON comparison

Related Issue

Motivation and Context

How Has This Been Tested?

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)

Checklist:

• [ ] I have signed the Adobe Open Source CLA.
• [ ] My code follows the code style of this project.
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• [ ] I have read the CONTRIBUTING document.
• [ ] I have added tests to cover my changes.
• [ ] All new and existing tests passed.

[codecov[bot]]

Codecov Report

Merging #434 (f8814bd) into dev (74a67e5) will decrease coverage by 0.29%. The diff coverage is n/a.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## dev #434 +/- ## ========================================== - Coverage 96.76% 96.47% -0.29% ========================================== Files 27 27 Lines 1730 1730 ========================================== - Hits 1674 1669 -5 - Misses 56 61 +5 ```