Kotlinx.coroutines: Testing without 'runBlocking'

[sellmair]

Hi guys, coroutines are awesome 👍
I just started a new multiplatform library project which is based on coroutines, but I have trouble figuring out how I am supposed to write tests using coroutines.
Since most code is in the 'commonMain' sourceSet I would like to write tests for my suspending functions there. Because Kotlin's @Test annotation does not support suspending tests and 'runBlocking' is not available in the common module of coroutines, I do not see how I could test those suspending functions in the commonTest module. Did I miss something here?

Thanks in advance ☺️

[SeekDaSky]

runBlocking is not present in the common package because JS platform does not support it.

In my experience, I had to make a common function runTest that calls runBlocking on JVM and Native and that use Promise on Node.js (as most Node.js test libraries handle correctly test cases that return a Promise it works just fine)

Here are the links to my implementations

• Common
• JS
• JVM

Hope this helps

[qwwdfsad]

In my experience, I had to make a common function runTest that calls runBlocking on JVM and Native and that use Promise on Node.js

This is more or less the thing we do in our tests (+ custom CoroutineExceptionHandler and catch in promise to fail a test on exception)

[sellmair]

Thanks a lot guys! ☺️

[4face-studi0]

What about Native implementation? :/

[SeekDaSky]

I intentionally omit native implementation because it contains library specific functions but it works exactly like JVM as it implements runBlocking