I can't get default configuration via `AbstractProjectConfig` to work. According to the docs, Kotest...

# kotest

[alex.krupa]

I can't get default configuration via AbstractProjectConfig to work. According to the docs, Kotest should automatically find these classes on the classpath and apply their configs to specs. Are there any undocumented requirements for this to work?

For example, should this test case pass?

object KotestConfig : AbstractProjectConfig() {
    override val isolationMode = IsolationMode.InstancePerLeaf
}

class KotestConfigSpec : StringSpec({
    "uses leaf isolation mode" {
        assertEquals(IsolationMode.InstancePerLeaf, isolationMode())
    }
})

[alex.krupa]

• Kotlin JVM 1.7.10
• Gradle 7.5.1.
• Kotest 5.5.1 (io.kotest:kotest-runner-junit5-jvm)
• No custom kotest.properties

[christophsturm]

I think it should work. you could try setting a breakpoint in your config class.

[alex.krupa]

Yeah, debugger stops at config breakpoints. 👍

[alex.krupa]

It looks I picked a wrong minimal case to verify my actual problem.🤦‍♂️

`isolationMode()`:

Returns the IsolationMode to be used by the test engine when running tests in this spec. If null, then the project default is used.

So, if I understand correctly, it'd return null no matter what, unless I set it explicitly in a spec.

[sam]

That seems a bug. It should use the project config value.

[alex.krupa]

I thought so too, but it looks correct after looking at JvmSpecExecutorDelegate

private fun Spec.resolvedIsolationMode() =
      this.isolationMode() ?: this.isolationMode ?: configuration.isolationMode

Spec.isolationMode field is not set within the framework, it's only a configuration value that's resolved later on by the delegate.