What Testing libraries/ frameworks is everyone using?

For multiplatform only this one: https://kotlinlang.org/api/latest/kotlin.test/

@Arkadii Ivanov any idea of multiplatform mocking library?

AFAIK there is no such a library. Personally I stopped using mocking libraries in any project once I got used to testing without mocking. I use Fakes and Stubs. You can read more about it here: https://medium.com/@june.pravin/mocking-is-not-practical-use-fakes-e30cc6eaaf4e

@Kweku https://kotest.io/

We use kotest assertions but typically with either junit5 on jvm or kotlin.test (subset of the junit annotations). We don't use the kotest testing dsl. I kind of like the idea of it but it's a bit of a PITA to make work with intellij if you want to just run a single test (it runs everything).

there's mockk, but I try to use mocking sparingly

I’m writing tests on jvm/android target only. spek + kluent (for assertions) + mockk (for mocking) + turbine (for coroutines-flow testing) Spek and Kotest has the same dsl for testing (rspec spectations style)

Running tests only on JVM is an option for sure. But please keep in mind that you may miss bugs as follows. This test fails only on JS:

@Test
fun foo() {
    val original = Float.MAX_VALUE
    val bits = original.toRawBits()
    val result = Float.fromBits(bits)
    assertEquals(original, result)
}

Also there are differences due to K/N memory model, which can also be verified by tests. Etc.

mockk is Multiplatform I think

mockk has no native support, and I think only partial js support

@Oliver.O thanks I started with Kotest recently just wondering what else is there

hmmm I thought i remember using mock w/ KMM, but I guess I just made that up in my head

you guyes update also to junit5 the KMM I halso work with koin. or just kotest are fine? I was trying and stop it later again to create setup with jupitor

@Jilles van Gurp Have you ever tried the Kotest IntelliJ Plugin? I'm using it to run single tests from gutter icons or plugin's test explorer. Before trying the plugin, I was using conditional evaluation or Gradle's test filter (

includeTestsMatching

) to single out tests.

What I miss here …I try to add Kotest with version `4.4.3`… Nothing start….. 😞

val androidTest by getting {
            dependencies {
                implementation(kotlin("test-junit"))
                implementation("junit:junit:4.13.2")

                implementation("io.kotest:kotest-framework-engine:${Versions.kotest}")
                implementation ("io.kotest:kotest-assertions-core:${Versions.kotest}")
                implementation ("io.kotest:kotest-property:${Versions.kotest}")
                implementation ("io.kotest:kotest-runner-junit5-jvm:${Versions.kotest}")
            }
        }

@marzelwidmer try asking in #kotest

if you run them from gradle they work are working?

yes 😞