POS-845 testcase

[Raneet10]

This PR is implements the test case mentioned in https://polygon.atlassian.net/browse/POS-845 .

[codecov-commenter]

Codecov Report

Base: 56.85% // Head: 56.83% // Decreases project coverage by -0.02% :warning:

Coverage data is based on head (fdd7988) compared to base (28b11d1). Patch has no changes to coverable lines.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #535      +/-   ##
===========================================
- Coverage    56.85%   56.83%   -0.03%     
===========================================
  Files          607      606       -1     
  Lines        69997    70128     +131     
===========================================
+ Hits         39798    39858      +60     
- Misses       26796    26857      +61     
- Partials      3403     3413      +10     

Impacted Files	Coverage Δ
core/state_prefetcher.go	85.18% <0.00%> (-7.41%)	:arrow_down:
consensus/ethash/algorithm.go	88.81% <0.00%> (-2.64%)	:arrow_down:
les/vflux/client/serverpool.go	76.76% <0.00%> (-1.66%)	:arrow_down:
consensus/ethash/sealer.go	78.64% <0.00%> (-1.46%)	:arrow_down:
eth/downloader/fetchers_concurrent.go	53.06% <0.00%> (-1.37%)	:arrow_down:
core/rawdb/chain_iterator.go	58.38% <0.00%> (-1.25%)	:arrow_down:
les/odr.go	89.02% <0.00%> (-1.22%)	:arrow_down:
consensus/ethash/ethash.go	53.05% <0.00%> (-1.15%)	:arrow_down:
eth/downloader/downloader.go	70.58% <0.00%> (-0.83%)	:arrow_down:
les/distributor.go	82.03% <0.00%> (-0.79%)	:arrow_down:
... and 26 more

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