Hey guys. I have some problems with network calls ...

# kotlin-native

[icarumbas]

Hey guys. I have some problems with network calls via ktor on iosTest module in my multiplatform app. I’ve created an issue here: https://github.com/ktorio/ktor/issues/895 But now i’m really confused about this. I’m not sure if it’s ktor problem. Maybe native and coroutines, especially emulator, idk…

[icarumbas]

What do you think guys? Should i create an issue also in kotlin/native or even in coroutines?

[Jonas Bark]

https://github.com/ktorio/ktor/issues/895#issuecomment-457541227 ?

[icarumbas]

@Jonas Bark how can i do this in test? It will just pass with launch and i’il never see the result, or i don’t understand something

[Jonas Bark]

are you performing real http requests or just mocked ones?

[icarumbas]

real

[Jonas Bark]

ok, that defeats unit testing purposes (as in fast, locally executable without 3rd party dependencies) but you could play with using a TestCoroutineContext

[icarumbas]

@Jonas Bark ktor is very delicate thing in multiplatform app and i need a fast way to make sure that everything is fine on 3 platforms. So i don’t care about any purposes 😄

[Jonas Bark]

"delicate"...? so you basically want to test if your ktor updates work?

[icarumbas]

Used translator for this word 😓 I want to test if ktor can make simple get request to one site that i parse in main module

[icarumbas]

@Jonas Bark “delicate”. i meant can be easily broken

[icarumbas]

@Jonas Bark TestCoroutineContext? But: Platform and version requirements: JVM

[Jonas Bark]

why "but"? works perfectly fine on JVM and other platforms as well I guess

[icarumbas]

Everywhere but not on ios😑

[Jonas Bark]

ok, that sucks
did you try making your own CoroutineDispatcher implementation on iOS by using grand central dispatch?

[icarumbas]

Like this? https://github.com/Kotlin/kotlinx.coroutines/issues/470#issuecomment-414635811

[Jonas Bark]

yes, or

dispatch_async(dispatch_get_main_queue()) {
                block.run()
            }
`

[icarumbas]

Actually iosMain works on this (It uses GlobalScope.launch maybe it matters). But when i use this in iosTest it just freezes without any code. Simple runBlocking(MainDispatcher) {}

[icarumbas]

Thats why i thought that it’s not ktor issue https://kotlinlang.slack.com/archives/C3SGXARS6/p1548419811325700?thread_ts=1548419625.325500&cid=C3SGXARS6

[svyatoslav.scherbina]

But when i use this in iosTest it just freezes without any code. Simple runBlocking(MainDispatcher) {}

Then this issue should be reported to kotlinx.coroutines project.
Please post your findings to original ktor issue first.

[icarumbas]

For those who interested: Here it is https://github.com/Kotlin/kotlinx.coroutines/issues/952