test: issue 3204

[alexander-akait]

• This is a bugfix
• This is a feature
• This is a code refactor
• This is a test update
• This is a docs update
• This is a metadata update

For Bugs and Features; did you add new tests?

fixes #3204

Motivation / Use-Case

test for lazy multi entries

Breaking Changes

No

Additional Info

webpack has bug with closing, so jest is freeze, tests are fine and work, but jest freeze, we should uncomment them when webpack fix the bug (already reported)

[codecov]

Codecov Report

Merging #3691 (febad43) into master (7114c22) will decrease coverage by 0.15%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #3691      +/-   ##
==========================================
- Coverage   93.70%   93.55%   -0.16%     
==========================================
  Files          15       15              
  Lines        1318     1318              
  Branches      456      456              
==========================================
- Hits         1235     1233       -2     
- Misses         76       78       +2     
  Partials        7        7              

Impacted Files	Coverage Δ
lib/servers/WebsocketServer.js	91.42% <0.00%> (-5.72%)	⬇️

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