Hey, anyone know of a way to detect if you are running your tests on Android device or JVM?

# multiplatform

[Alexander Larsson]

Hey, anyone know of a way to detect if you are running your tests on Android device or JVM?

[aleksey.tomin]

As I know tests can’t run on android - only mac/lin/win
You can use org.jetbrains.kotlin.konan.target.HostManager.hostIsLinux etc properties in build.gradle.kts.

[Alexander Larsson]

I'm running them on an Android emulator with the connectedAndroidTest task from Gradle. I guess it runs on the emulator because it fails if you haven't started an emulator manually first. What do you mean with properties in build.gradle.kts. Can I define properties in the Gradle file that is available at runtime?

[aleksey.tomin]

What the result of HostManager.host_os() in the build file?

[Alexander Larsson]

It is always osx no matter which platform I build for. (JVM, Android, iOS)

[Alexander Larsson]

Found a super simple solution:

internal actual fun testSqlDriver(): SqlDriver {
    try {
        val context = InstrumentationRegistry.getInstrumentation().context
        return AndroidSqliteDriver(Database.Schema, context, "androidtestdb")
    }
    catch (e: IllegalStateException) {
        return JdbcSqliteDriver(JdbcSqliteDriver.IN_MEMORY).apply {
            Database.Schema.create(this)
        }
    }
}

How did I not think of this before? 😅 Thanks for the help though! Did not know of host manager before. 🙂