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fix: Unary-test behavior with special input variable ? #887

Merged
merged 9 commits into from
Aug 23, 2024
Merged

fix: Unary-test behavior with special input variable ? #887

merged 9 commits into from
Aug 23, 2024

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saig0
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@saig0 saig0 commented Aug 20, 2024 •
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Description

Fix the behavior of unary-test expressions if the special input variable ? is used to access the input value. From the following definition, the current behavior is incorrect in case d).

image

Key idea:

  • Distinguish the case d) from the other cases
  • Limit the access to the special input variable ? to unary-tests
  • Introduce a new error value type to detect the access of ? and interrupt the evaluation

Reviewer hint:
The first 3 commits are the most relevant. The rest contains a lot of refactoring and may be harder to compare with the original code.

Related issues

closes #864

@saig0 saig0 force-pushed the 864-unary-test-implicit-null branch from 41f403d to 329017d Compare August 20, 2024 13:06
@saig0 saig0 marked this pull request as ready for review August 20, 2024 13:14
@saig0
test: Verify unary-tests expression
866ce00 
Add test cases to explicitly verify that a unary-test expression returns the correct output (true/false/null).

Restructure existing tests cases and group them into the different behaviors.
@saig0
feat: Add new error type
04abac9 
Introduce a new type for not recoverable errors. Compared to the existing error, this new error should stop the evaluation instead of continue the evaluation with null.
@saig0
fix: Unary tests behavior with input value
61cb169 
Correct the behavior of unary-test expression to return only true if an expression with the special variable `?` evaluates to true.

Identify the usage by returning a fatal error if `?` is used outside of an unary-test.
@saig0
fix: Return fatal error in operations
c967208 
Adjust all operations to return a fatal error instead of returning null. This is required to limit the access to the special input symbol `?` outside an unary-tests.

Restructure some helper methods to restrict the handling of fatal errors to a few places. This should help to reduce possible problems with fatal errors.

Move some methods to group different aspects together.
@saig0
refactor: Migrate to new test style
1ba21ca
@saig0
refactor: Migrate to new test style
f171ebf
@saig0
test: Verify input variable in expressions
8354d1b 
Add a test case to verify that the input variable is not available outside of an unary-test expression.
@saig0
test: Adjust failure message
63efe64
@saig0 saig0 force-pushed the 864-unary-test-implicit-null branch from 329017d to 63efe64 Compare August 20, 2024 13:15
@saig0 saig0 mentioned this pull request Aug 20, 2024
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@saig0 saig0 added the follow-up: camunda docs The PR requires an update of the Camunda documentation. label Aug 21, 2024
remcowesterhoud
remcowesterhoud approved these changes Aug 23, 2024
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Thanks @saig0. I think I understand what's happening but I raised 1 question to be sure. Please have a look 🙂

src/test/scala/org/camunda/feel/impl/interpreter/InterpreterUnaryTest.scala Outdated Show resolved Hide resolved
src/test/scala/org/camunda/feel/impl/interpreter/InterpreterUnaryTest.scala Outdated Show resolved Hide resolved
src/main/scala/org/camunda/feel/impl/interpreter/FeelInterpreter.scala Show resolved Hide resolved
@saig0 saig0 added this pull request to the merge queue Aug 23, 2024
Merged via the queue into main with commit 0fddf7d Aug 23, 2024
5 checks passed
@saig0 saig0 deleted the 864-unary-test-implicit-null branch August 23, 2024 12:34
@backport-action
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Backport failed for 1.16, because it was unable to cherry-pick the commit(s).

Please cherry-pick the changes locally and resolve any conflicts.

git fetch origin 1.16
git worktree add -d .worktree/backport-887-to-1.16 origin/1.16
cd .worktree/backport-887-to-1.16
git switch --create backport-887-to-1.16
git cherry-pick -x 866ce0098c40f05ba9da3973f88a008dd9885621 04abac917890a5b0ec27868f710495ade41f0bbc 61cb1696cb241e72717e2eaad211043e855a9bab c9672081221a1562a704915f6631c900e855706c 1ba21cad18170b20cd847e3956e989267e708c2b f171ebf299b3969ccab03236843fa19debbc9934 8354d1b136ea8dc57cc1aa83223ed419ad3f198d 63efe64def6ba866edfb3716141299f82354bb80 ac4737b5db5185146dfbaaee6044b65fc81d9c1f

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Successfully created backport PR for 1.17:

@backport-action backport-action mentioned this pull request Aug 23, 2024
Merged
This was referenced Aug 26, 2024
Merged
Merged
github-merge-queue bot referenced this pull request in camunda/camunda Sep 3, 2024
@renovate
deps: Update dependency org.camunda.feel:feel-engine to v1.18.0 (main) (
d1e206c 
#21884)

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [org.camunda.feel:feel-engine](http://www.camunda.org)
([source](https://redirect.github.com/camunda/feel-scala)) |
`1.18.0-alpha1` -> `1.18.0` |
[![age](https://developer.mend.io/api/mc/badges/age/maven/org.camunda.feel:feel-engine/1.18.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/maven/org.camunda.feel:feel-engine/1.18.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/maven/org.camunda.feel:feel-engine/1.18.0-alpha1/1.18.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/maven/org.camunda.feel:feel-engine/1.18.0-alpha1/1.18.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>camunda/feel-scala (org.camunda.feel:feel-engine)</summary>

###
[`v1.18.0`](https://redirect.github.com/camunda/feel-scala/releases/tag/1.18.0)

[Compare
Source](https://redirect.github.com/camunda/feel-scala/compare/1.18.0-alpha1...1.18.0)

#### What's Changed

##### Features ✨

- feat: Add built-in function to strip whitespace by
[@&#8203;skayliu](https://redirect.github.com/skayliu) in
[https://github.com/camunda/feel-scala/pull/826](https://redirect.github.com/camunda/feel-scala/pull/826)
- feat: Add built-in function to generate a UUID string by
[@&#8203;skayliu](https://redirect.github.com/skayliu) in
[https://github.com/camunda/feel-scala/pull/834](https://redirect.github.com/camunda/feel-scala/pull/834)
- feat: Add built-in function to encode a string as base64 by
[@&#8203;sbuettner](https://redirect.github.com/sbuettner) in
[https://github.com/camunda/feel-scala/pull/847](https://redirect.github.com/camunda/feel-scala/pull/847)
- feat: Add built-in function to check if a list is empty by
[@&#8203;skayliu](https://redirect.github.com/skayliu) in
[https://github.com/camunda/feel-scala/pull/851](https://redirect.github.com/camunda/feel-scala/pull/851)
- feat: Make the FeelEngineBuilder available from Java/Kotlin by
[@&#8203;vicmosin](https://redirect.github.com/vicmosin) in
[https://github.com/camunda/feel-scala/pull/832](https://redirect.github.com/camunda/feel-scala/pull/832)
- feat: I can interrupt an expression evaluation by
[@&#8203;vicmosin](https://redirect.github.com/vicmosin) in
[https://github.com/camunda/feel-scala/pull/824](https://redirect.github.com/camunda/feel-scala/pull/824)

##### Fixes 🐛

- fix: Regression in string() function for string and null values by
[@&#8203;saig0](https://redirect.github.com/saig0) in
[https://github.com/camunda/feel-scala/pull/749](https://redirect.github.com/camunda/feel-scala/pull/749)
- fix: String escape characters by
[@&#8203;nicpuppa](https://redirect.github.com/nicpuppa) in
[https://github.com/camunda/feel-scala/pull/750](https://redirect.github.com/camunda/feel-scala/pull/750)
- fix: Double quotes in string literal are escaped by
[@&#8203;saig0](https://redirect.github.com/saig0) in
[https://github.com/camunda/feel-scala/pull/780](https://redirect.github.com/camunda/feel-scala/pull/780)
- fix: Variable resolution for custom context by
[@&#8203;saig0](https://redirect.github.com/saig0) in
[https://github.com/camunda/feel-scala/pull/786](https://redirect.github.com/camunda/feel-scala/pull/786)
- fix: `string()` function can handle a context with custom value types
by [@&#8203;mustafadagher](https://redirect.github.com/mustafadagher) in
[https://github.com/camunda/feel-scala/pull/833](https://redirect.github.com/camunda/feel-scala/pull/833)
- fix: Invoke `context()` function with a list containing a custom
context by [@&#8203;saig0](https://redirect.github.com/saig0) in
[https://github.com/camunda/feel-scala/pull/858](https://redirect.github.com/camunda/feel-scala/pull/858)
- fix: `substring()` with exceeding length by
[@&#8203;saig0](https://redirect.github.com/saig0) in
[https://github.com/camunda/feel-scala/pull/893](https://redirect.github.com/camunda/feel-scala/pull/893)
- fix: `number()` to return null if the given string is invalid by
[@&#8203;saig0](https://redirect.github.com/saig0) in
[https://github.com/camunda/feel-scala/pull/892](https://redirect.github.com/camunda/feel-scala/pull/892)
- fix: Return `null` if a date is invalid by
[@&#8203;saig0](https://redirect.github.com/saig0) in
[https://github.com/camunda/feel-scala/pull/889](https://redirect.github.com/camunda/feel-scala/pull/889)
- fix: Function `context put()` works for more than two keys by
[@&#8203;saig0](https://redirect.github.com/saig0) in
[https://github.com/camunda/feel-scala/pull/902](https://redirect.github.com/camunda/feel-scala/pull/902)
- fix: Unary-test behavior with special input variable `?` by
[@&#8203;saig0](https://redirect.github.com/saig0) in
[https://github.com/camunda/feel-scala/pull/887](https://redirect.github.com/camunda/feel-scala/pull/887)
- fix: List operation returns null if the value is not a list by
[@&#8203;saig0](https://redirect.github.com/saig0) in
[https://github.com/camunda/feel-scala/pull/895](https://redirect.github.com/camunda/feel-scala/pull/895)
- fix: Variable name starting with "in" by
[@&#8203;saig0](https://redirect.github.com/saig0) in
[https://github.com/camunda/feel-scala/pull/909](https://redirect.github.com/camunda/feel-scala/pull/909)
- fix: Parse expression with NBSP character by
[@&#8203;saig0](https://redirect.github.com/saig0) in
[https://github.com/camunda/feel-scala/pull/914](https://redirect.github.com/camunda/feel-scala/pull/914)
- fix: Detect duplicated context values in `distinct values()` +
`union()` + `duplicate values()` by
[@&#8203;saig0](https://redirect.github.com/saig0) in
[https://github.com/camunda/feel-scala/pull/908](https://redirect.github.com/camunda/feel-scala/pull/908)

##### Dependencies 🤖

- chore(deps): bump org.apache.maven.plugins:maven-shade-plugin from
3.5.0 to 3.5.1 by
[@&#8203;dependabot](https://redirect.github.com/dependabot) in
[https://github.com/camunda/feel-scala/pull/733](https://redirect.github.com/camunda/feel-scala/pull/733)
- build: Update mvn-scalafmt plugin by
[@&#8203;saig0](https://redirect.github.com/saig0) in
[https://github.com/camunda/feel-scala/pull/721](https://redirect.github.com/camunda/feel-scala/pull/721)
- chore(deps-dev): bump version.log4j from 2.20.0 to 2.21.0 by
[@&#8203;dependabot](https://redirect.github.com/dependabot) in
[https://github.com/camunda/feel-scala/pull/745](https://redirect.github.com/camunda/feel-scala/pull/745)
- chore(deps): bump org.apache.maven.plugins:maven-surefire-plugin from
3.1.2 to 3.2.1 by
[@&#8203;dependabot](https://redirect.github.com/dependabot) in
[https://github.com/camunda/feel-scala/pull/755](https://redirect.github.com/camunda/feel-scala/pull/755)
- chore(deps-dev): bump version.log4j from 2.21.0 to 2.21.1 by
[@&#8203;dependabot](https://redirect.github.com/dependabot) in
[https://github.com/camunda/feel-scala/pull/754](https://redirect.github.com/camunda/feel-scala/pull/754)
- chore(deps): bump org.apache.maven.plugins:maven-surefire-plugin from
3.2.1 to 3.2.2 by
[@&#8203;dependabot](https://redirect.github.com/dependabot) in
[https://github.com/camunda/feel-scala/pull/760](https://redirect.github.com/camunda/feel-scala/pull/760)
- chore(deps-dev): bump version.log4j from 2.21.1 to 2.22.0 by
[@&#8203;dependabot](https://redirect.github.com/dependabot) in
[https://github.com/camunda/feel-scala/pull/764](https://redirect.github.com/camunda/feel-scala/pull/764)
- chore(deps): bump
org.apache.maven.plugins:maven-project-info-reports-plugin from 3.4.5 to
3.5.0 by [@&#8203;dependabot](https://redirect.github.com/dependabot) in
[https://github.com/camunda/feel-scala/pull/766](https://redirect.github.com/camunda/feel-scala/pull/766)
- chore(deps): bump org.apache.maven.plugins:maven-surefire-plugin from
3.2.2 to 3.2.3 by
[@&#8203;dependabot](https://redirect.github.com/dependabot) in
[https://github.com/camunda/feel-scala/pull/775](https://redirect.github.com/camunda/feel-scala/pull/775)
- chore(deps-dev): bump version.log4j from 2.22.0 to 2.22.1 by
[@&#8203;dependabot](https://redirect.github.com/dependabot) in
[https://github.com/camunda/feel-scala/pull/787](https://redirect.github.com/camunda/feel-scala/pull/787)
- chore(deps): bump org.apache.maven.plugins:maven-surefire-plugin from
3.2.3 to 3.2.5 by
[@&#8203;dependabot](https://redirect.github.com/dependabot) in
[https://github.com/camunda/feel-scala/pull/793](https://redirect.github.com/camunda/feel-scala/pull/793)
- chore(deps): bump actions/cache from 3 to 4 by
[@&#8203;dependabot](https://redirect.github.com/dependabot) in
[https://github.com/camunda/feel-scala/pull/795](https://redirect.github.com/camunda/feel-scala/pull/795)
- chore(deps): bump org.apache.maven.plugins:maven-shade-plugin from
3.5.1 to 3.5.2 by
[@&#8203;dependabot](https://redirect.github.com/dependabot) in
[https://github.com/camunda/feel-scala/pull/812](https://redirect.github.com/camunda/feel-scala/pull/812)
- chore(deps-dev): bump version.log4j from 2.22.1 to 2.23.0 by
[@&#8203;dependabot](https://redirect.github.com/dependabot) in
[https://github.com/camunda/feel-scala/pull/811](https://redirect.github.com/camunda/feel-scala/pull/811)
- chore(deps): bump org.scala-lang:scala-library from 2.13.12 to 2.13.13
by [@&#8203;dependabot](https://redirect.github.com/dependabot) in
[https://github.com/camunda/feel-scala/pull/813](https://redirect.github.com/camunda/feel-scala/pull/813)
- chore(deps-dev): bump version.log4j from 2.23.0 to 2.23.1 by
[@&#8203;dependabot](https://redirect.github.com/dependabot) in
[https://github.com/camunda/feel-scala/pull/816](https://redirect.github.com/camunda/feel-scala/pull/816)
- chore(deps): bump org.apache.maven.plugins:maven-assembly-plugin from
3.6.0 to 3.7.0 by
[@&#8203;dependabot](https://redirect.github.com/dependabot) in
[https://github.com/camunda/feel-scala/pull/817](https://redirect.github.com/camunda/feel-scala/pull/817)
- chore(deps): bump org.apache.maven.plugins:maven-assembly-plugin from
3.7.0 to 3.7.1 by
[@&#8203;dependabot](https://redirect.github.com/dependabot) in
[https://github.com/camunda/feel-scala/pull/819](https://redirect.github.com/camunda/feel-scala/pull/819)
- chore(deps): bump com.lihaoyi:fastparse\_2.13 from 3.0.2 to 3.1.0 by
[@&#8203;dependabot](https://redirect.github.com/dependabot) in
[https://github.com/camunda/feel-scala/pull/827](https://redirect.github.com/camunda/feel-scala/pull/827)
- chore(deps): bump org.apache.maven.plugins:maven-jar-plugin from 3.3.0
to 3.4.0 by [@&#8203;dependabot](https://redirect.github.com/dependabot)
in
[https://github.com/camunda/feel-scala/pull/828](https://redirect.github.com/camunda/feel-scala/pull/828)
- chore(deps): bump org.apache.maven.plugins:maven-jar-plugin from 3.4.0
to 3.4.1 by [@&#8203;dependabot](https://redirect.github.com/dependabot)
in
[https://github.com/camunda/feel-scala/pull/837](https://redirect.github.com/camunda/feel-scala/pull/837)
- chore(deps): bump org.apache.maven.plugins:maven-shade-plugin from
3.5.2 to 3.5.3 by
[@&#8203;dependabot](https://redirect.github.com/dependabot) in
[https://github.com/camunda/feel-scala/pull/842](https://redirect.github.com/camunda/feel-scala/pull/842)
- chore(deps): bump net.alchim31.maven:scala-maven-plugin from 4.8.1 to
4.9.0 by [@&#8203;dependabot](https://redirect.github.com/dependabot) in
[https://github.com/camunda/feel-scala/pull/841](https://redirect.github.com/camunda/feel-scala/pull/841)
- chore(deps): bump org.scala-lang:scala-library from 2.13.13 to 2.13.14
by [@&#8203;dependabot](https://redirect.github.com/dependabot) in
[https://github.com/camunda/feel-scala/pull/845](https://redirect.github.com/camunda/feel-scala/pull/845)
- chore(deps): bump net.alchim31.maven:scala-maven-plugin from 4.9.0 to
4.9.1 by [@&#8203;dependabot](https://redirect.github.com/dependabot) in
[https://github.com/camunda/feel-scala/pull/849](https://redirect.github.com/camunda/feel-scala/pull/849)
- chore(deps): bump org.apache.maven.plugins:maven-shade-plugin from
3.5.3 to 3.6.0 by
[@&#8203;dependabot](https://redirect.github.com/dependabot) in
[https://github.com/camunda/feel-scala/pull/862](https://redirect.github.com/camunda/feel-scala/pull/862)
- chore(deps): bump com.fasterxml.uuid:java-uuid-generator from 5.0.0 to
5.1.0 by [@&#8203;dependabot](https://redirect.github.com/dependabot) in
[https://github.com/camunda/feel-scala/pull/863](https://redirect.github.com/camunda/feel-scala/pull/863)
- chore(deps): bump
org.apache.maven.plugins:maven-project-info-reports-plugin from 3.5.0 to
3.6.0 by [@&#8203;dependabot](https://redirect.github.com/dependabot) in
[https://github.com/camunda/feel-scala/pull/868](https://redirect.github.com/camunda/feel-scala/pull/868)
- chore(deps): bump org.apache.maven.plugins:maven-surefire-plugin from
3.2.5 to 3.3.0 by
[@&#8203;dependabot](https://redirect.github.com/dependabot) in
[https://github.com/camunda/feel-scala/pull/866](https://redirect.github.com/camunda/feel-scala/pull/866)
- chore(deps): bump org.apache.maven.plugins:maven-jar-plugin from 3.4.1
to 3.4.2 by [@&#8203;dependabot](https://redirect.github.com/dependabot)
in
[https://github.com/camunda/feel-scala/pull/869](https://redirect.github.com/camunda/feel-scala/pull/869)
- chore(deps): bump
org.apache.maven.plugins:maven-project-info-reports-plugin from 3.6.0 to
3.6.1 by [@&#8203;dependabot](https://redirect.github.com/dependabot) in
[https://github.com/camunda/feel-scala/pull/871](https://redirect.github.com/camunda/feel-scala/pull/871)
- chore(deps): bump net.alchim31.maven:scala-maven-plugin from 4.9.1 to
4.9.2 by [@&#8203;dependabot](https://redirect.github.com/dependabot) in
[https://github.com/camunda/feel-scala/pull/872](https://redirect.github.com/camunda/feel-scala/pull/872)
- chore(deps): bump com.lihaoyi:fastparse\_2.13 from 3.1.0 to 3.1.1 by
[@&#8203;dependabot](https://redirect.github.com/dependabot) in
[https://github.com/camunda/feel-scala/pull/875](https://redirect.github.com/camunda/feel-scala/pull/875)
- chore(deps): bump
org.apache.maven.plugins:maven-project-info-reports-plugin from 3.6.1 to
3.6.2 by [@&#8203;dependabot](https://redirect.github.com/dependabot) in
[https://github.com/camunda/feel-scala/pull/878](https://redirect.github.com/camunda/feel-scala/pull/878)
- chore(deps): bump org.apache.maven.plugins:maven-surefire-plugin from
3.3.0 to 3.3.1 by
[@&#8203;dependabot](https://redirect.github.com/dependabot) in
[https://github.com/camunda/feel-scala/pull/876](https://redirect.github.com/camunda/feel-scala/pull/876)
- chore(deps): bump org.apache.maven.plugins:maven-site-plugin from
3.12.1 to 3.20.0 by
[@&#8203;dependabot](https://redirect.github.com/dependabot) in
[https://github.com/camunda/feel-scala/pull/886](https://redirect.github.com/camunda/feel-scala/pull/886)
- chore(deps): bump org.apache.maven.plugins:maven-surefire-plugin from
3.3.1 to 3.4.0 by
[@&#8203;dependabot](https://redirect.github.com/dependabot) in
[https://github.com/camunda/feel-scala/pull/885](https://redirect.github.com/camunda/feel-scala/pull/885)
- chore(deps): bump
org.apache.maven.plugins:maven-project-info-reports-plugin from 3.6.2 to
3.7.0 by [@&#8203;dependabot](https://redirect.github.com/dependabot) in
[https://github.com/camunda/feel-scala/pull/894](https://redirect.github.com/camunda/feel-scala/pull/894)
- chore(deps): bump org.apache.maven.plugins:maven-surefire-plugin from
3.4.0 to 3.5.0 by
[@&#8203;dependabot](https://redirect.github.com/dependabot) in
[https://github.com/camunda/feel-scala/pull/910](https://redirect.github.com/camunda/feel-scala/pull/910)

#### New Contributors

- [@&#8203;lzgabel](https://redirect.github.com/lzgabel) made their
first contribution in
[https://github.com/camunda/feel-scala/pull/734](https://redirect.github.com/camunda/feel-scala/pull/734)
- [@&#8203;jonathanlukas](https://redirect.github.com/jonathanlukas)
made their first contribution in
[https://github.com/camunda/feel-scala/pull/794](https://redirect.github.com/camunda/feel-scala/pull/794)
- [@&#8203;vicmosin](https://redirect.github.com/vicmosin) made their
first contribution in
[https://github.com/camunda/feel-scala/pull/824](https://redirect.github.com/camunda/feel-scala/pull/824)
- [@&#8203;skayliu](https://redirect.github.com/skayliu) made their
first contribution in
[https://github.com/camunda/feel-scala/pull/826](https://redirect.github.com/camunda/feel-scala/pull/826)
- [@&#8203;mustafadagher](https://redirect.github.com/mustafadagher)
made their first contribution in
[https://github.com/camunda/feel-scala/pull/833](https://redirect.github.com/camunda/feel-scala/pull/833)
- [@&#8203;sbuettner](https://redirect.github.com/sbuettner) made their
first contribution in
[https://github.com/camunda/feel-scala/pull/847](https://redirect.github.com/camunda/feel-scala/pull/847)
- [@&#8203;andromaqui](https://redirect.github.com/andromaqui) made
their first contribution in
[https://github.com/camunda/feel-scala/pull/870](https://redirect.github.com/camunda/feel-scala/pull/870)

**Full Changelog**:
camunda/feel-scala@1.17.0...1.18.0

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backport 1.16 backport 1.17 follow-up: camunda docs The PR requires an update of the Camunda documentation.
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[Bug] Incorrect/inconsistent unary test evaluation when nulls are involved.
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