kotest: Incompatibility with Kotlin-1.7.0-Beta

Using the latest version of Kotest (5.3.0) and the Kotlin 1.7.0-Beta, I am encountering the following error:

java.lang.IncompatibleClassChangeError: Found interface kotlin.time.TimeMark, but class was expected
	at io.kotest.engine.spec.interceptor.SpecFinishedInterceptor.intercept-0E7RQCE(SpecFinishedInterceptor.kt:37)
	at io.kotest.engine.spec.interceptor.SpecFinishedInterceptor$intercept$1.invokeSuspend(SpecFinishedInterceptor.kt)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)

The full stacktrace is attached.

stacktrace.txt

About this issue

Original URL
State: closed
Created 2 years ago
Reactions: 19
Comments: 28 (20 by maintainers)

Commits related to this issue

try downgrading kotlinx-datetime as per kotest/kotest#2960 — committed to breandan/galoisenne by breandan 2 years ago
update to kotlin 1.7.0 kotest pending kotest/kotest#2960 — committed to breandan/kotlingrad by breandan 2 years ago
update to kotlin 1.7.0 kotest pending kotest/kotest#2960 — committed to breandan/galoisenne by breandan 2 years ago
replace measureTime with manual measure https://github.com/kotest/kotest/issues/2960 — committed to aSemy/kotest by aSemy 2 years ago
Kotlin 1.7 compat test - replace `measureTime` with manual duration measure (#3052) * replace measureTime with manual measure https://github.com/kotest/kotest/issues/2960 * add TODOs for other ... — committed to kotest/kotest by aSemy 2 years ago
chore: kotest 버전업 - https://github.com/kotest/kotest/issues/2960 Found interface kotlin.time.TimeMark, but class was expected 이슈 해결 — committed to unluckyjung/kotlin-learning by unluckyjung a year ago
chore: kotest version 5.2.3 -> 5.3.1 https://github.com/kotest/kotest/issues/2960 — committed to jinyoungchoi95/kotlin-lotto by jinyoungchoi95 a year ago
[로또] step1 (#611) * docs: 문자열 덧셈 계산기 요구사항 추가 * feat: remove gitkeep * chore: kotest version 5.2.3 -> 5.3.1 https://github.com/kotest/kotest/issues/2960 * feat: 공백 입력 시 0 반환기능 추가 및 테스트 ... — committed to next-step/kotlin-lotto by jinyoungchoi95 a year ago
🚀 2단계 - 로또(자동) 구현 완료 (#647) * feat(READ.md): 리드미 작성히여 TDD 준비 * feat: 문자열이 입력되면 , 구분자를 통해 숫자들을 반환한다 * feat: 문자열이 입력되면 ":" 구분자를 통해 숫자들을 반환한다 - "\\"과 "\n" 사이에 위치되는 문자열을 커스텀 구분자와 ","와 ":"가 섞여 ... — committed to next-step/kotlin-lotto by parkjun5 a year ago

Most upvoted comments

1.7 just got released a few hours ago but we’ll wait for the official blog post. Then we can upgrade kotest and make sure it compiles and then release 5.4

On Wed, 8 Jun 2022 at 16:09, Ismar Slomic @.***> wrote:

I’m also facing this issue with kotest v5.3.0 and kotlin v1.7.0 (which is available as we speak)

— Reply to this email directly, view it on GitHub https://github.com/kotest/kotest/issues/2960#issuecomment-1150417937, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAFVSGXF23TOG3YSW5WYV7TVOEDZHANCNFSM5VIQUI3A . You are receiving this because you were mentioned.Message ID: @.***>

sksamuel on Jun 8, 2022

@nielsvanvelzen it should be out now 😃

Kantis on Jun 15, 2022

5.3.1 has been released, can you try that ?

sksamuel on Jun 13, 2022

The blog post is there now: https://blog.jetbrains.com/kotlin/2022/06/kotlin-1-7-0-released/

sschuberth on Jun 9, 2022

I had the same issue with Kotest (5.3.0), but with Kotlin version 1.6.21 also I was using kotlinx-datetime on version 0.3.3. Downgrade of kotlinx-datetime to 0.3.2 solved it for me.

jandryml on May 16, 2022

Here’s the description of the change: https://kotlinlang.org/docs/whatsnew17.html#time-marks-based-on-inline-classes-for-default-time-source

(sharing for completeness)

Time marks based on inline classes for default time source

Kotlin 1.7.0 improves the performance of time measurement functionality by changing the time marks returned by TimeSource.Monotonic into inline value classes. This means that calling functions like markNow(), elapsedNow(), measureTime(), and measureTimedValue() doesn’t allocate wrapper classes for their TimeMark instances. Especially when measuring a piece of code that is part of a hot path, this can help minimize the performance impact of the measurement:
@OptIn(ExperimentalTime::class)
fun main() {
    val mark = TimeSource.Monotonic.markNow() // Returned `TimeMark` is inline class
    val elapsedDuration = mark.elapsedNow()
}
This optimization is only available if the time source from which the TimeMark is obtained is statically known to be TimeSource.Monotonic.

aSemy on Jun 12, 2022

Once 1.7 final is out we will release. See https://github.com/kotest/kotest/issues/2990

sksamuel on May 22, 2022

I can confirmed this is fixed after updating to Kotlin 1.7.0 and kotest 5.3.1

jmfayard on Jun 16, 2022

Are snapshots working with 1.7?

ghost on Jun 13, 2022