Hi I'm migrating from kotlintest to kotest but I found a strange issue: When I run the tests from th...

# kotest

[HarryPulvirenti]

Hi I'm migrating from kotlintest to kotest but I found a strange issue:
When I run the tests from the IDE every test is successful but when I try to run the test with gradlew I'm getting this error in an assertion:

java.lang.NoClassDefFoundError: arrow/core/NonFatal

the assertion is this shouldBeLeft()
Someone can help me?

[Ashish Kumar Joy]

Hi @HarryPulvirenti please make sure you have

compile group: 'io.kotest', name: 'kotest-assertions-arrow-jvm', version: '4.0.3'

dependency in build file.

[HarryPulvirenti]

I'm using this dependencies

const val koTestRunner = "io.kotest:kotest-runner-junit5-jvm:${Versions.koTest}"
const val koTestAssertionsCore = "io.kotest:kotest-assertions-core-jvm:${Versions.koTest}"
const val koTestProperty = "io.kotest:kotest-property-jvm:${Versions.koTest}"
const val koTestArrow = "io.kotest:kotest-assertions-arrow-jvm:${Versions.koTest}"

[HarryPulvirenti]

so should be fine

[Ashish Kumar Joy]

@HarryPulvirenti could you please share more details like kotest version, kotlin version, gradle version, and java version

As i have checked this for me its working fine for me.
https://github.com/ashishkujoy/kotest-playground/blob/master/src/test/kotlin/org/playground/ArrowTest.kt

[HarryPulvirenti]

https://github.com/Harrypulvirenti/TESS/pull/7/files

[HarryPulvirenti]

Kotest 4.0.3
Gradle 6.4-rc-1
Kotlin 1.3.72
Java 1.8

[HarryPulvirenti]

Arrow 0.9.0

[sam]

That arrow version needs to be 0.10.4

[sam]

Unfortunately arrow is not compatible between releases so we have to pick one.

[HarryPulvirenti]

Oh ok thanks

[HarryPulvirenti]

I will update it

[simon.vergauwen]

All stable Arrow modules are starting from 0.10.x 🙂

[simon.vergauwen]

So once we can update kotest, this issue should be fixed in the future

[sam]

there was an issue between 0.10.4 and 0.10.5, some dependency change fyi