set the channel topic: Kotlin Power-Assert compiler plugin (Doc link TBD)

set the channel description: Discussion of the Power-Assert compiler plugin for Kotlin and all things related.

set the channel topic: Kotlin Power-Assert compiler plugin (https://kotl.in/power-assert)

Q: what’s the best way to configure power-assert once for every subproject of a multi-project Gradle build?

Hi, I wanted to try out Power-Assert on my Android project, but it just does not work When I perform the same setup for a random JVM application on IntelliJ Idea it works correctly

👋 What about the old issues on GitHub https://github.com/bnorm/kotlin-power-assert/issues Should they be moved to Youtrack?

Feature request: documentation with examples of using and configuring power-assert in Maven builds

Does anyone have an example of using power-assert in a Maven build? I cannot for the life of me configure the power-assert compiler plugin to instrument my tests

and there is no documentation of using power-assert in Maven

I’ve got a tiny project that reliably makes power-assert crash the Kotlin compiler. However, I cannot raise a defect in YouTrack, because YouTrack is throwing assertion failures:

Anyone know if this is a known issue, and if there’s an ETA for YouTrack being available again?

YouTrack is back.

And I’ve reported the bug: https://youtrack.jetbrains.com/issue/KT-68807

If anyone in this channel is using #kotest, you may want to follow https://github.com/kotest/kotest/issues/4044

What’s that you say - you’d like to learn more about power-assert but can’t find any video content anywhere and JetBrains haven’t gotten round to publishing the KotlinConf presentation?

Today I learned that c# implemented linq by enhancing the compiler to pass an AST to any function that takes Expression<T>. Is that a thing that could be done for Kotlin and used to implement power-assert in a more general way?

Hacking Kotlin Power Assert

It's not explicitly written in the doc: what is the versioning scheme? Will it always follow the Kotlin version?

Just caught the kotlinconf talk on YouTube. Power-assert looks like a magic I'm scared of describing in 2024, amazing work!

I am super excited about this! However I am not able to get it working and not sure why 😕 Does it work in the shared directory in a multiplatform app?

hello, I’m trying to use it in a multiplatform project, that only has android and ios, but it doesn’t seem to work even with the “includedSourceSets”, when I run the tests in commonTest I get the following options in the image, if I run with iosSimulatorArm64 it works, but with the android one it doesn’t, the issue is that we run the tests on a pipeline which always runs them in the android mode, can anyone help?

For anyone struggling with matching source set names with

includedSourceSets

, this task will print out all available options in a multiplatform project:

tasks.create("printSourceSets") {
    doLast {
        kotlin.targets.forEach { target ->
            target.compilations.forEach { compilation ->
                println(compilation.defaultSourceSet.name)
            }
        }
    }
}

Hello again, I’ve also included it on an Android project, and it seems to be working, but for instrumented tests I get a really messed up formatting. Example:

Where is the power assert issue tracker? I did a demo at my workplace today and… I have a few things to report 😇

Looking for a little feedback if people are willing to share! ✍️ For those that are using power-assert: 1. What functions do you most often configure for power-assert transformation? 2. What source sets do you most often configure for power-assert transformation?

It would be nice to have arrays show content. Now it is like this:

java.lang.AssertionError: 
assertContentEquals(value, valueRet)
                    |      |
                    |      [B@6c1d2a61
                    [B@1840d643

Just to praise Power Assert a bit… Code:

assertEquals(6.right(), 5.successful().withProgress(loading(0.2)).toEither())

Before:

Expected :Either.Right(6)
Actual   :Either.Right(5)

With Power Assert:

assertEquals(6.right(), 5.successful().withProgress(loading(0.2)).toEither())
               |          |            |            |             |
               |          |            |            |             Either.Right(5)
               |          |            |            Loading(20%)
               |          |            Success(value=5, progress=Loading(20%))
               |          Success(value=5)
               Either.Right(6)
Expected :Either.Right(6)
Actual   :Either.Right(5)

I've just added power assert to the shared sub-module of a multiplatform project, Kotlin 2.0.10 and the jetbrains power assert plugin. But, for some reason it is not working on my

commonTest

sources, even if I set

commonTest

explicitly in the

includedSourceSets

. It has worked for me on other projects... not sure why it isn't working on this one.

Is there any way to avoid the

ExperimentalKotlinGradlePluginApi

warnings when power assert is loaded in a convention plugin? All builds get errors that look like this:

w: file:///home/raman/.../buildSrc/build/generated-sources/kotlin-dsl-accessors/kotlin/gradle/kotlin/dsl/accessors/_b37aeb87f95e53da65bc4a78666b15f2/Accessorsatef9dvwop5esd1nvo708sdz1.kt:65:45 Experimental API in the Kotlin Gradle Plugin: No stability guarantees can be provided. The API could get removed in the future without replacement

What's the configuration to be able to use Power Assert in

commonMain

? I have a module that contains fixtures. I have

powerAssert {
	functions = listOf("kotlin.check")
	includedSourceSets = listOf("commonMain", "jvmMain", "jsMain", "nativeMain")
}

but I still get

Check failed.
java.lang.IllegalStateException: Check failed.
	at opensavvy.ktmongo.bson.raw.TimestampTestKt.timestamp$lambda$9$lambda$5(TimestampTest.kt:69)

without Power Assert's message