Test variable evaluation via cqf expressions

[brandy-kay]

IMPORTANT: Where possible all PRs must be linked to a Github issue

Fixes #3060

Engineer Checklist

• [ ] I have written Unit tests for any new feature(s) and edge cases for bug fixes
• [ ] I have added any strings visible on UI components to the strings.xml file
• [ ] I have updated the CHANGELOG.md file for any notable changes to the codebase
• [ ] I have run ./gradlew spotlessApply and ./gradlew spotlessCheck to check my code follows the project's style guide
• [ ] I have built and run the FHIRCore app to verify my change fixes the issue and/or does not break the app
• [ ] I have checked that this PR does NOT introduce breaking changes that require an update to Content and/or Configs? If it does add a sample here or a link to exactly what changes need to be made to the content.

Code Reviewer Checklist

• [ ] I have verified Unit tests have been written for any new feature(s) and edge cases
• [ ] I have verified any strings visible on UI components are in the strings.xml file
• [ ] I have verifed the CHANGELOG.md file has any notable changes to the codebase
• [ ] I have verified the solution has been implemented in a configurable and generic way for reuseable components
• [ ] I have built and run the FHIRCore app to verify the change fixes the issue and/or does not break the app

[codecov[bot]]

Codecov Report

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

Project coverage is 30.1%. Comparing base (ac82739) to head (13ae701). Report is 32 commits behind head on main.

Additional details and impacted files

[](https://app.codecov.io/gh/opensrp/fhircore/pull/3200?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=opensrp) ```diff @@ Coverage Diff @@ ## main #3200 +/- ## ========================================= + Coverage 29.6% 30.1% +0.4% - Complexity 658 672 +14 ========================================= Files 239 239 Lines 11204 11259 +55 Branches 1948 1957 +9 ========================================= + Hits 3323 3394 +71 + Misses 7447 7422 -25 - Partials 434 443 +9 ``` | [Flag](https://app.codecov.io/gh/opensrp/fhircore/pull/3200/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=opensrp) | Coverage Δ | | |---|---|---| | [engine](https://app.codecov.io/gh/opensrp/fhircore/pull/3200/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=opensrp) | `66.8% <ø> (+0.6%)` | :arrow_up: | | [geowidget](https://app.codecov.io/gh/opensrp/fhircore/pull/3200/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=opensrp) | `47.2% <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=opensrp#carryforward-flags-in-the-pull-request-comment) to find out more. [see 5 files with indirect coverage changes](https://app.codecov.io/gh/opensrp/fhircore/pull/3200/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=opensrp)