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a little improve of weak extensions and add tests for weak scopes

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InsanusMokrassar 2024-06-14 16:53:56 +06:00
parent 0398a7bebd
commit f373524f34
2 changed files with 56 additions and 4 deletions
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24
coroutines/src/commonMain/kotlin/dev/inmo/micro_utils/coroutines/WeakJob.kt
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@ -4,11 +4,14 @@ import kotlinx.coroutines.*
import kotlin.coroutines.CoroutineContext
import kotlin.coroutines.EmptyCoroutineContext
private fun CoroutineScope.createWeakSubScope() = CoroutineScope(coroutineContext.minusKey(Job)).also { newScope ->
coroutineContext.job.invokeOnCompletion { newScope.cancel() }
private fun CoroutineScope.createWeakSubScope() = CoroutineScope(coroutineContext.minusKey(Job) + Job()).also { newScope ->
newScope.launch {
this@createWeakSubScope.coroutineContext.job.join()
newScope.cancel()
}
}
fun CoroutineScope.weakLaunch(
fun CoroutineScope.launchWeak(
context: CoroutineContext = EmptyCoroutineContext,
start: CoroutineStart = CoroutineStart.DEFAULT,
block: suspend CoroutineScope.() -> Unit
@ -19,7 +22,7 @@ fun CoroutineScope.weakLaunch(
return job
}
fun <T> CoroutineScope.weakAsync(
fun <T> CoroutineScope.asyncWeak(
context: CoroutineContext = EmptyCoroutineContext,
start: CoroutineStart = CoroutineStart.DEFAULT,
block: suspend CoroutineScope.() -> T
@ -29,3 +32,16 @@ fun <T> CoroutineScope.weakAsync(
deferred.invokeOnCompletion { scope.cancel() }
return deferred
}
@Deprecated("Renamed", ReplaceWith("launchWeak(context, start, block)", "dev.inmo.micro_utils.coroutines.launchWeak"))
fun CoroutineScope.weakLaunch(
context: CoroutineContext = EmptyCoroutineContext,
start: CoroutineStart = CoroutineStart.DEFAULT,
block: suspend CoroutineScope.() -> Unit
): Job = launchWeak(context, start, block)
@Deprecated("Renamed", ReplaceWith("asyncWeak(context, start, block)", "dev.inmo.micro_utils.coroutines.asyncWeak"))
fun <T> CoroutineScope.weakAsync(
context: CoroutineContext = EmptyCoroutineContext,
start: CoroutineStart = CoroutineStart.DEFAULT,
block: suspend CoroutineScope.() -> T
): Deferred<T> = asyncWeak(context, start, block)

36
coroutines/src/commonTest/kotlin/WeakJobTests.kt Normal file
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@ -0,0 +1,36 @@
import dev.inmo.micro_utils.coroutines.asyncWeak
import dev.inmo.micro_utils.coroutines.launchWeak
import kotlinx.coroutines.CancellationException
import kotlinx.coroutines.coroutineScope
import kotlinx.coroutines.delay
import kotlinx.coroutines.launch
import kotlinx.coroutines.test.runTest
import kotlin.test.Test
import kotlin.test.assertTrue
class WeakJobTests {
@Test
fun testWeakJob() = runTest {
var commonJobDone = false
var weakJobStarted = false
try {
coroutineScope {
launch {
delay(1000)
commonJobDone = true
}
asyncWeak {
weakJobStarted = true
delay(100500L)
error("This must never happen")
}
}.await()
} catch (error: Throwable) {
assertTrue(error is CancellationException)
assertTrue(commonJobDone)
assertTrue(weakJobStarted)
return@runTest
}
error("Cancellation exception has not been thrown")
}
}