refactor and test voucher

[ghost]

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#### [](https://app.codesee.io/r/reviews?pr=480&src=https%3A%2F%2Fgithub.com%2FAnalogIO%2Fcoffeecard_app) #### Legend

[codecov[bot]]

Codecov Report

Merging #480 (3831652) into develop (bae775e) will increase coverage by 1.39%. The diff coverage is 100.00%.

@@             Coverage Diff             @@
##           develop     #480      +/-   ##
===========================================
+ Coverage    70.80%   72.19%   +1.39%     
===========================================
  Files          104      108       +4     
  Lines         1137     1158      +21     
===========================================
+ Hits           805      836      +31     
+ Misses         332      322      -10     

Flag	Coverage Δ
unittests	72.19% <100.00%> (+1.39%)	:arrow_up:

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...ures/voucher/domain/entities/redeemed_voucher.dart	100.00% <ø> (ø)
...ures/voucher/presentation/cubit/voucher_state.dart	100.00% <ø> (ø)
...r/data/datasources/voucher_remote_data_source.dart	80.00% <100.00%> (ø)
...es/voucher/data/models/redeemed_voucher_model.dart	100.00% <100.00%> (ø)
...s/voucher/domain/usecases/redeem_voucher_code.dart	100.00% <100.00%> (ø)
...ures/voucher/presentation/cubit/voucher_cubit.dart	100.00% <100.00%> (ø)

[fremartini]

@marfavi merged develop again. Can't Update Branch from here because merge conflicts