Hey! asked here, but for better visibility I'm going to ask in details here as well: Is there any documentation for migrating to v6 after changes done to Isolation mode?

I am wondering about the best approach to deal with comparing multi-line strings to expected values. I ran into the following setup a couple of times now:

val data = readSomeData() // reads a file from /src/test/resources
val actual = mangle(data)
actual shouldBe """
    line 1
    line 2
    """.trimIndent()

The problem is that line separators can be different between the file and Kotlin multiline strings. How to deal with that in the most convenient way possible?

I have been using KoTest quite extensively over the last couple of months and do like it as a testing framework. There is one thing that is driving me crazy because it is constantly breaking my development flow. That is, that I can't just keep running Specs. IntelliJ shows "Current File" and Run/Debug gets disables. Sometimes when I delete the run configuration it will work a couple more times but will eventually break again. This is an absolute killer for productivity as I keep running my tests constantly while my code is evolving. I believe that this is the bug that was already reported by Geoffry: https://github.com/kotest/kotest/issues/4646

Hey all! 1. Do we know when does v6 go live? 2. About the upcoming changes in Isolation mode, do we expect huge breaking changes? Our app is heavily using 'per leaf' mode. I want to estimate how much of 'tech debt' will be added to our back log Thanks in advance!

hi folks, I ran into a small issue while using Kotest and Testcontainers with the kotest-extensions-testcontainers today (details in 🧵).

Hi. Does anyone know how to correctly set up kotest for a KMP project so that kotest picks up specs in the

androidUnitTest

source folder. Set up described here https://www.jetbrains.com/help/kotlin-multiplatform-dev/multiplatform-run-tests.html#for-android. Right now kotest doesn’t notice those tests when it does a scan so no tests are run but it does pick up the commonTest specs.

What's the best way to assert that two ByteArrays are the same (as per

contentEquals

)?

Am I misunderstanding how clues supposed to work? Tried

asClue

and

withClue

but I'm not seeing the clue included in a stacktrace 🧵

HI, I use the kotest plugin and for a few week I have the problem now that `CMD`+`SHIFT`+`T` runs into an exception:

org.jetbrains.kotlin.analysis.api.impl.base.sessions.ProhibitedAnalysisException: Analysis is not allowed: Called in the EDT thread.
	at org.jetbrains.kotlin.analysis.api.impl.base.sessions.KaBaseSessionProvider.beforeEnteringAnalysis(KaBaseSessionProvider.kt:54)
	at org.jetbrains.kotlin.analysis.api.impl.base.sessions.KaBaseSessionProvider.beforeEnteringAnalysis(KaBaseSessionProvider.kt:45)
	at io.kotest.plugin.intellij.psi.SuperClassesKt.getAllSuperClasses(superClasses.kt:48)
	at io.kotest.plugin.intellij.psi.SpecsKt.specStyle(specs.kt:52)
	at io.kotest.plugin.intellij.psi.SpecsKt.isSpec(specs.kt:31)
	at io.kotest.plugin.intellij.psi.SpecsKt.isContainedInSpec(specs.kt:76)
	at io.kotest.plugin.intellij.KotestTestFinder.isTest(KotestTestFinder.kt:45)
	at com.intellij.testIntegration.TestFinderHelper.isTest(TestFinderHelper.java:48)
	at com.intellij.testIntegration.GotoTestOrCodeHandler.getSourceAndTargetElements(GotoTestOrCodeHandler.java:50)
	at com.intellij.codeInsight.navigation.GotoTargetHandler.invoke(GotoTargetHandler.java:72)
	at com.intellij.codeInsight.actions.CodeInsightAction.lambda$actionPerformedImpl$0(CodeInsightAction.java:73)
	at com.intellij.codeInsight.actions.CodeInsightAction.lambda$actionPerformedImpl$1(CodeInsightAction.java:79)
	at com.intellij.openapi.command.impl.CoreCommandProcessor.executeCommand(CoreCommandProcessor.java:226)
	at com.intellij.openapi.command.impl.CoreCommandProcessor.executeCommand(CoreCommandProcessor.java:178)
	at com.intellij.openapi.command.impl.CoreCommandProcessor.executeCommand(CoreCommandProcessor.java:159)
	at com.intellij.codeInsight.actions.CodeInsightAction.actionPerformedImpl(CodeInsightAction.java:70)
	at com.intellij.codeInsight.actions.CodeInsightAction.actionPerformed(CodeInsightAction.java:41)
	at com.intellij.openapi.actionSystem.ex.ActionUtil.doPerformActionOrShowPopup(ActionUtil.kt:345)
	at com.intellij.openapi.keymap.impl.ActionProcessor.performAction(ActionProcessor.java:32)
	at com.intellij.openapi.keymap.impl.IdeKeyEventDispatcher$actionProcessor$1.performAction(IdeKeyEventDispatcher.kt:496)
	at com.intellij.openapi.keymap.impl.IdeKeyEventDispatcherKt.doPerformActionInner$lambda$4$lambda$3(IdeKeyEventDispatcher.kt:845)
	at com.intellij.openapi.application.TransactionGuardImpl.performActivity(TransactionGuardImpl.java:106)
	at com.intellij.openapi.application.TransactionGuardImpl.performUserActivity(TransactionGuardImpl.java:95)
	at com.intellij.openapi.keymap.impl.IdeKeyEventDispatcherKt.doPerformActionInner$lambda$4(IdeKeyEventDispatcher.kt:845)
	at com.intellij.openapi.actionSystem.impl.ActionManagerImpl.performWithActionCallbacks(ActionManagerImpl.kt:1164)
	at com.intellij.openapi.actionSystem.ex.ActionUtil.performDumbAwareWithCallbacks(ActionUtil.kt:362)
	at com.intellij.openapi.keymap.impl.IdeKeyEventDispatcherKt.doPerformActionInner(IdeKeyEventDispatcher.kt:843)
	at com.intellij.openapi.keymap.impl.IdeKeyEventDispatcherKt.access$doPerformActionInner(IdeKeyEventDispatcher.kt:1)
	at com.intellij.openapi.keymap.impl.IdeKeyEventDispatcher.processAction$intellij_platform_ide_impl(IdeKeyEventDispatcher.kt:572)
	at com.intellij.openapi.keymap.impl.IdeKeyEventDispatcher.processAction(IdeKeyEventDispatcher.kt:509)
	at com.intellij.openapi.keymap.impl.IdeKeyEventDispatcher.processActionOrWaitSecondStroke(IdeKeyEventDispatcher.kt:448)
	at com.intellij.openapi.keymap.impl.IdeKeyEventDispatcher.inInitState(IdeKeyEventDispatcher.kt:441)
	at com.intellij.openapi.keymap.impl.IdeKeyEventDispatcher.dispatchKeyEvent(IdeKeyEventDispatcher.kt:303)
	at com.intellij.ide.IdeEventQueue.dispatchKeyEvent(IdeEventQueue.kt:620)
	at com.intellij.ide.IdeEventQueue._dispatchEvent$lambda$15(IdeEventQueue.kt:582)
	at com.intellij.openapi.application.impl.AnyThreadWriteThreadingSupport.runWriteIntentReadAction(AnyThreadWriteThreadingSupport.kt:84)
	at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.kt:582)
	at com.intellij.ide.IdeEventQueue.access$_dispatchEvent(IdeEventQueue.kt:73)
	at com.intellij.ide.IdeEventQueue$dispatchEvent$processEventRunnable$1$1$1$1.compute(IdeEventQueue.kt:357)
	at com.intellij.ide.IdeEventQueue$dispatchEvent$processEventRunnable$1$1$1$1.compute(IdeEventQueue.kt:356)
	at com.intellij.openapi.progress.impl.CoreProgressManager.computePrioritized(CoreProgressManager.java:843)
	at com.intellij.ide.IdeEventQueue$dispatchEvent$processEventRunnable$1$1$1.invoke(IdeEventQueue.kt:356)
	at com.intellij.ide.IdeEventQueue$dispatchEvent$processEventRunnable$1$1$1.invoke(IdeEventQueue.kt:351)
	at com.intellij.ide.IdeEventQueueKt$performActivity$runnableWithWIL$1.invoke$lambda$0(IdeEventQueue.kt:1035)
	at com.intellij.openapi.application.WriteIntentReadAction.lambda$run$0(WriteIntentReadAction.java:24)
	at com.intellij.openapi.application.impl.AnyThreadWriteThreadingSupport.runWriteIntentReadAction(AnyThreadWriteThreadingSupport.kt:84)
	at com.intellij.openapi.application.impl.ApplicationImpl.runWriteIntentReadAction(ApplicationImpl.java:910)
	at com.intellij.openapi.application.WriteIntentReadAction.compute(WriteIntentReadAction.java:55)
	at com.intellij.openapi.application.WriteIntentReadAction.run(WriteIntentReadAction.java:23)
	at com.intellij.ide.IdeEventQueueKt$performActivity$runnableWithWIL$1.invoke(IdeEventQueue.kt:1035)
	at com.intellij.ide.IdeEventQueueKt$performActivity$runnableWithWIL$1.invoke(IdeEventQueue.kt:1035)
	at com.intellij.ide.IdeEventQueueKt.performActivity$lambda$1(IdeEventQueue.kt:1036)
	at com.intellij.openapi.application.TransactionGuardImpl.performActivity(TransactionGuardImpl.java:114)
	at com.intellij.ide.IdeEventQueueKt.performActivity(IdeEventQueue.kt:1036)
	at com.intellij.ide.IdeEventQueue.dispatchEvent$lambda$10(IdeEventQueue.kt:351)
	at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.kt:397)
	at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:207)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:128)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:117)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:113)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:105)
	at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:92)

I currently use intellij 2024.2.5 where it work last. I also tried uninstall and reinstall the plugin, but that doesn't help Currently I installed the latest version - 1.3.92-2024.2.2 Anything what I can try?

did kotest-assertions-ktor not get released as part of 6.0.0.M2?

Hi, I'be alighted on this pattern for sharing code between specs:

import io.kotest.core.spec.style.StringSpec
import io.kotest.matchers.shouldBe

@Suppress("UNCHECKED_CAST")
abstract class AbstractSpec(
  body: AbstractSpec.() -> Unit,
) : StringSpec(body as StringSpec.() -> Unit) {
  fun shared() {  }
  val sharedProperty = "foo"
}

class ConcreteSpec : AbstractSpec({
  "some test" {
    shared()
    sharedProperty shouldBe "foo"
  }
})

That unchecked cast bothers me, and suggests to me that there is probably a better way... could someone point me at the docs I've missed?

Hello has anyone used kotest to unit test ktor routes? I can't find too much documentation/examples about it

I release 6.0.0.M3 if anyone wants to give it a go and feedback

@sam Please could you add a changelog to the intellij plugin, or use releases/tags? The versioning scheme based on the GITHUB_RUN_NUMBER secret inscrutable; there is no way to check what commit it corresponds to.

Sorry, I must be a bit clumsy and miss something obvious.

val subject = intArrayOf()
val expected = intArrayOf()
subject shouldBeEqual expected

This fails because what I really intended to do was to use

contentEquals()

on the arrays. I don't seem to find a matcher to do just that, though?

I see this regularly (but not always) when I run my tests:

[0.631s][error][attach] failure (232) writing result of operation jcmd to pipe \\.\pipe\javatool-558031551

Is this caused by KoTest?

Hey there, I'm trying to run a simple test suite using Kotest in a KMP module, but it doesn't seem to work, neither via terminal by running the

check

task or by hitting the play button.

// libs.versions.toml
kotest = [
    "kotest-framework-engine",
    "kotest-assertions",
    "kotest-property",
]

// build.gradle.kts
commonTest {
    dependencies {
        implementation(kotlin("test-common"))
        implementation(kotlin("test-annotations-common"))

        implementation(libs.kotlinx.coroutines.test)
        implementation(libs.bundles.kotest)
        implementation(libs.koin.test)
        implementation(libs.turbine)
    }
}

// in commonTest source set
class KotestSampleTest : BehaviorSpec() {
    init {
        Given("2 + 2") {
            Then("it must be 4") {
                2 + 2 shouldBeEqual 4
            }
        }
    }
}

hi, i wonder is there any alternatives of

InstancePerLeaf

on Kotest 6.0.0 (M3). i want to instantiate test cases for each

it

blocks of

DescribeSpec

I see failure stack traces with line numbers that are not in my file. That is, it says that it fails in

SomeModelSpeckt:150

when there are only 120 lines in that file. That only seems to happen when I use

assertSoftly

. Does anyone know what is going on here?

Hey, Trying to get powerAssert working with kotest matchers and am getting

Unable to find overload of function io.kotest.matchers.shouldBe for power-assert transformation callable as:
 - io.kotest.matchers.shouldBe(String)
 - io.kotest.matchers.shouldBe(() -> String)
 - io.kotest.matchers.shouldBe(U of io.kotest.matchers.shouldBe?, String)
 - io.kotest.matchers.shouldBe(U of io.kotest.matchers.shouldBe?, () -> String)

Kotest "6.0.0.M3" Kotlin "2.1.20" Any ideas?

Excuse me, what happened to the documentation? There's lots of information missing, and the left-side navigation bar is gone. 🤔

Hello, is a version of the Kotest Plugin arriving for

IDEA 2025.1

? My Kotest Plugin

1.3.92-2024.3.1

is preventing me from navigating to tests by using

Navigate -> Test

. See the attached screenshot.

What's the easiest way of debugging Kotest internals? Are there some switches to enable

debug

level of logging to see what "it's doing"? I'm affected in my work project by a behavior that HANGS A LOT before starting to execute the tests. I cannot upgrade from V5.6.x to v5.9.x due to this. I only see an infinite series of

Warning: Kotest autoscan is enabled. This means Kotest will scan the classpath for extensions that are annotated with @AutoScan. To avoid this startup cost, disable autoscan by setting the system property 'kotest.framework.classpath.scanning.autoscan.disable=true'. In 6.0 this value will default to true. For further details see <https://kotest.io/docs/next/framework/project-config.html#runtime-detection>

Setting the mentioned property to

true

doesn't help. Thank You CC @Matteo Mirk

Why does TestClock implement

java.time.Clock

rather than

kotlinx.datetime.Clock

?

I'd like to use Kotest with JUnit's Console Launcher, but my tests do not seem to be discovered. Has anyone made that working yet?

Any likelihood of a 6.0.0.M4 release soon? The test-containers stackoverflows are hard to work around

Engine Exception That's about it! My test won't run, giving this error and the name of the test it was running and that's it, no other indication. How do I go about getting more information?

Hello, is there a timeline for a full 6.0 release? *Not a contribution

The latest 6.0.0 milestone releases do no longer provide

withEnvironment

. Is there a replacement? Thanks

Hi there! Dummy question: what is the state of the new compiler plugin (see #4870 #4871)? The more I keep digging into what Transformer does, the more issues crop up. Rather than spamming GitHub: Is that new multiplatform compiler plugin supposed to be in a working state as of now or was it intentionally not used?