new use case

[bodiyang]

add a new use case

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (7610289) 98.54% compared to head (3e843d9) 98.54%. Report is 1 commits behind head on master.

:exclamation: Current head 3e843d9 differs from pull request most recent head bc7da20. Consider uploading reports for the commit bc7da20 to get more accurate results

Additional details and impacted files

[](https://app.codecov.io/gh/PSLmodels/Tax-Calculator/pull/2718?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=PSLmodels) ```diff @@ Coverage Diff @@ ## master #2718 +/- ## ======================================= Coverage 98.54% 98.54% ======================================= Files 14 14 Lines 2616 2616 ======================================= Hits 2578 2578 Misses 38 38 ``` | [Flag](https://app.codecov.io/gh/PSLmodels/Tax-Calculator/pull/2718/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=PSLmodels) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/PSLmodels/Tax-Calculator/pull/2718/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=PSLmodels) | `98.54% <ø> (ø)` | | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=PSLmodels#carryforward-flags-in-the-pull-request-comment) to find out more.

[jdebacker]

@bodiyang thanks!