Anyone got an example of Android & iOS testing in a multiplatform library and app(s)?

# multiplatform

[ribesg]

Anyone got an example of Android & iOS testing in a multiplatform library and app(s)?

[Dennis L]

There's tests in https://github.com/SimonSchubert/Newsout but I'm trying to figure out how they work too

[ribesg]

I only have a single multiplatform module, I’m trying to get the Android tests to run. Your source should help running iOS tests I think

[kpgalligan]

We’ve been refactoring https://github.com/touchlab/DroidconKotlin/ for tests. See https://github.com/touchlab/DroidconKotlin/blob/master/sessionize/lib/src/commonMain/kotlin/co/touchlab/sessionize/ServiceRegistry.kt. It takes a bunch of interfaces, which in test have some definitions, and in main, delegate to real versions. The actual “tests” are a work in progress, but being able to do manual dependency injection and test implementations is functional.

[kpgalligan]

Some highlights. Concurrency is delegated to an interface, and in test, is all main thread: https://github.com/touchlab/DroidconKotlin/blob/master/sessionize/lib/src/commonTest/kotlin/co/touchlab/sessionize/platform/TestConcurrent.kt

[ribesg]

Woa I’m just at the step where I want to assert that 1 == 1 in a function and being able to run it

[ribesg]

I’ve got two test functions with @Test in commonTest but gradle test does not see them. (gradle test should run the Android unit tests)

[kpgalligan]

To be able to init native/ios with lambas, we added an entry point to kick off tests https://github.com/touchlab/DroidconKotlin/blob/master/iosApp/iosAppKtTests/iosAppKtTests.swift in kotlin https://github.com/touchlab/DroidconKotlin/blob/master/sessionize/lib/src/iosTest/kotlin/co/touchlab/sessionize/KotlinTestStarter.kt

[kpgalligan]

Hmm…

[kpgalligan]

Code? Are they in a class?

[ribesg]

I put a class around my tests but it still doesn’t work. I’ve got these dependencies:

getByName("commonTest") {
            dependencies {
                implementation(kotlin("test-common"))
                implementation(kotlin("test-annotations-common"))
            }
        }

getByName("androidTest") {
            dependencies {
                implementation(kotlin("test"))
                implementation(kotlin("test-testng"))
                implementation("org.testng:testng:6.13.1")
            }
        }

[ribesg]

I’m replacing testng with junit

[ribesg]

Looks like it runs them but now I get a NoClassDefFoundError on something that is internal in the code module 😕

[kpgalligan]

Don’t know about that

[kpgalligan]

You should be able to. I don’t know why yours is not working. Would need to see actual code, but if this isn’t open source code, it would be much easier to maybe make a test project to verify and experiment.

[mben]

Hello i have a question about testing i'm doing tdd and when i use a non existant class and do cmd + enter and put target destination in commonMain i have a warning no source roots configured and i dont know how to fixe it

[mben]

ide freeze after that

[ribesg]

I’m still switching from junit to junit5 to testng and trying to find something that works

[mben]

more precisely when i use non existant class in test and then cmd + enter -> create class -> Extract to separate file and put target destination : commonMain/folder i get dialogue with No Source Roots configured for module SharedCode_commonTest then ide freeze

[kpgalligan]

I believe in the jvm, ‘testing’ will delegate to junit anyway.

[russhwolf]

@ribesg Try using gradle check instead of gradle test. That's the command most of the default multiplatform gradle setups are built for.