Ensures the test suites are properly formed for vscode jasmine plugin

[flovilmart]

• Cosmetic changes to tests so jasmine testing works well.
• Removes duplicated test cases.

[dplewis]

@flovilmart I've had this issue where my tests don't show up in the jasmine test explorer is the PR suppose to fix that or something else.

[flovilmart]

It ensures that the describe_only_db, it_only_db etc... have the proper location in code.

For your issue, is comes from a recent version from jasmine test explorer where the reporters are cleared in our helper.js, which clears the reporter responsible for listing the tests :/ It broke recently.

On our side we could go back to the dot reporter, as we don't really need the spec one.

It also deduplicates some test names.

[codecov]

Codecov Report

Merging #4901 into master will decrease coverage by 0.03%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #4901      +/-   ##
==========================================
- Coverage   92.92%   92.89%   -0.04%     
==========================================
  Files         119      119              
  Lines        8836     8836              
==========================================
- Hits         8211     8208       -3     
- Misses        625      628       +3

Impacted Files	Coverage Δ
src/Adapters/Storage/Mongo/MongoStorageAdapter.js	91.27% <0%> (-0.75%)	⬇️
src/RestWrite.js	93.32% <0%> (ø)	⬆️

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[dplewis]

LGTM!