fix(tests): rework tests according to new position service

[ludmilanesvitiy]

PR Checklist

Before creating new PR, please take a look at checklist below to make sure that you've done everything that needs to be done before we can merge it.

• read and followed the CONTRIBUTING.md guide.
• built and tested the changes locally.
• added/updated tests.
• added/updated API documentation.
• added/updated demos.

[codecov]

Codecov Report

Merging #5055 into development will decrease coverage by 0.01%.
The diff coverage is n/a.

@@               Coverage Diff               @@
##           development    #5055      +/-   ##
===============================================
- Coverage        74.44%   74.43%   -0.02%     
===============================================
  Files              316      316              
  Lines             8870     8870              
  Branches          1734     1734              
===============================================
- Hits              6603     6602       -1     
+ Misses            1774     1770       -4     
- Partials           493      498       +5

Impacted Files	Coverage Δ
src/chronos/i18n/it.ts	71.42% <0%> (-28.58%)	⬇️
...themes/bs/bs-datepicker-day-decorator.directive.ts	81.81% <0%> (-18.19%)	⬇️
src/datepicker/engine/flag-days-calendar.ts	75% <0%> (-6.25%)	⬇️
src/chronos/i18n/uk.ts	78.04% <0%> (-2.44%)	⬇️
src/chronos/i18n/cs.ts	86.44% <0%> (+1.69%)	⬆️
src/datepicker/reducer/bs-datepicker.effects.ts	74.1% <0%> (+1.78%)	⬆️
src/chronos/i18n/sk.ts	82.97% <0%> (+2.12%)	⬆️
src/chronos/i18n/pl.ts	74.35% <0%> (+5.12%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update a2aaa80...b9b14e4. Read the comment docs.