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How to use concurrency class of io.kotest.engine.concurrency package

Best Kotest code snippet using io.kotest.engine.concurrency.concurrency

Dependencies.kt

Source:Dependencies.kt

...52    const val dynamic_property_api = "ru.fix:dynamic-property-api:${Vers.dynamic_property}"53    const val aggregating_profiler = "ru.fix:aggregating-profiler:${Vers.aggregating_profiler}"54    const val jfix_stdlib_socket = "ru.fix:jfix-stdlib-socket:${Vers.jfix_stdlib}"55    const val jfix_stdlib_ratelimiter = "ru.fix:jfix-stdlib-ratelimiter:${Vers.jfix_stdlib}"56    const val jfix_stdlib_concurrency = "ru.fix:jfix-stdlib-concurrency:${Vers.jfix_stdlib}"57    // Logging58    const val log4j_kotlin = "org.apache.logging.log4j:log4j-api-kotlin:${Vers.log4j_kotlin}"59    const val log4j_core = "org.apache.logging.log4j:log4j-core:${Vers.log4j}"60    const val slf4j_over_log4j = "org.apache.logging.log4j:log4j-slf4j-impl:${Vers.log4j}"61    const val kotlin_logging = "io.github.microutils:kotlin-logging:${Vers.kotlin_logging}"62    // Armeria63    const val armeria = "com.linecorp.armeria:armeria:${Vers.armeria}"64    const val armeria_retrofit2 = "com.linecorp.armeria:armeria-retrofit2:${Vers.armeria}"65    // Retrofit66    const val retrofit2_converter_jackson = "com.squareup.retrofit2:converter-jackson:${Vers.retrofit}"67    const val jackson_databind = "com.fasterxml.jackson.core:jackson-databind:2.10.2"68    const val jackson_kotlin = "com.fasterxml.jackson.module:jackson-module-kotlin:2.10.2"69    const val retrofit2_converter_scalars = "com.squareup.retrofit2:converter-scalars:${Vers.retrofit}"70    // Spring...

ArchetypeTest.kt

Source:ArchetypeTest.kt

...87        }88    }89    // The two tests below are pretty beefy and more like benchmarks so they're disabled by default90//    @Test91    fun `set and remove concurrency`() = runTest {92        println(measureTime {93            concurrentOperation(100) {94                val entity = entity()95                repeat(1000) { id ->96                    launch {97//                        entity.withLock {98                        entity.setRelation(id.toULong(), "String")99                        println("Locked for ${entity.id}: $id, size ${engine.archetypeCount}")100//                        }101                    }102                }103            }.awaitAll()104        })105//        entity.getComponents().shouldBeEmpty()...

WatcherTest.kt

Source:WatcherTest.kt

...10import io.kotest.assertions.throwables.shouldThrowAny11import io.kotest.common.ExperimentalKotest12import io.kotest.core.spec.style.FunSpec13import io.kotest.engine.spec.tempfile14import io.kotest.framework.concurrency.eventually15import io.kotest.matchers.shouldBe16import io.kotest.matchers.shouldNotBe17import io.kotest.matchers.string.shouldContain18import kotlinx.coroutines.delay19class TestWatcher: Watchable {20  private var cb: (() -> Unit)? = null21  override fun watch(callback: () -> Unit, errorHandler: (Throwable) -> Unit) {22    cb = callback23  }24  fun update() {25    cb?.invoke()26  }27}28data class TestConfig(val foo: String)...

concurrency

Using AI Code Generation

1 import io.kotest.core.spec.style.StringSpec2 import io.kotest.core.test.TestCase3 import io.kotest.core.test.TestResult4 import io.kotest.engine.concurrency.AtomicRef5 import io.kotest.engine.concurrency.AtomicRefW6 import io.kotest.engine.concurrency.Lock7 import io.kotest.engine.concurrency.LockW8 import io.kotest.engine.concurrency.Ref9 import io.kotest.engine.concurrency.RefW10 import io.kotest.engine.concurrency.Semaphore11 import io.kotest.engine.concurrency.SemaphoreW12 import io.kotest.engine.concurrency.SpinLock13 import io.kotest.engine.concurrency.SpinLockW14 import io.kotest.engine.concurrency.ThreadSafeRef15 import io.kotest.engine.concurrency.ThreadSafeRefW16 import io.kotest.engine.concurrency.ThreadSafeSemaphore17 import io.kotest.engine.concurrency.ThreadSafeSemaphoreW18 import io.kotest.engine.concurrency.ThreadSafeSpinLock19 import io.kotest.engine.concurrency.ThreadSafeSpinLockW20 import io.kotest.engine.concurrency.ThreadSafeWeakRef21 import io.kotest.engine.concurrency.WeakRef22 import io.kotest.engine.concurrency.WeakRefW23 import io.kotest.matchers.shouldBe24 import kotlinx.coroutines.delay25 import kotlinx.coroutines.launch26 import kotlinx.coroutines.runBlocking27 import java.util.concurrent.atomic.AtomicBoolean28 import java.util.concurrent.atomic.AtomicInteger29 import java.util.concurrent.atomic.AtomicLong30 import java.util.concurrent.atomic.AtomicReference31 import kotlin.concurrent.thread32 import kotlin.concurrent.withLock33 import kotlin.math.min34 import kotlin.random.Random35 class ConcurrencyTests : StringSpec() {36-   init {37-      "Ref" {38-         val ref = Ref(0)39-         ref.get() shouldBe 040-         ref.set(1)41-         ref.get() shouldBe 142-      }43-      "RefW" {44-         val ref = RefW(0)45-         ref.get() shouldBe 046-         ref.set(1)47-         ref.get() shouldBe 148-      }49-      "AtomicRef" {50-         val ref = AtomicRef(0)51-         ref.get() shouldBe 052-         ref.set(1)53-         ref.get() shouldBe

concurrency

Using AI Code Generation

1 import kotlinx.coroutines.*2 import java.util.concurrent.atomic.AtomicInteger3@@ -44,7 +44,7 @@ class ConcurrencyTest : FunSpec({4       val counter = AtomicInteger()5       val start = System.currentTimeMillis()6       val threads = List(10) {7-         thread {8+         thread(start = true) {9            (1..100).forEach {10               counter.incrementAndGet()11            }12@@ -55,7 +55,7 @@ class ConcurrencyTest : FunSpec({13       threads.forEach { it.join() }14       counter.get() shouldBe 100015       val duration = System.currentTimeMillis() - start16    }17    test("concurrent threads should be able to use the shared test context") {18 import io.kotest.core.concurrency.ConcurrentExecutionContext19 import kotlinx.coroutines.CoroutineDispatcher20-import kotlinx.coroutines.Dispatchers21+import kotlinx.coroutines.asCoroutineDispatcher22 import java.util.concurrent.Executors23 import java.util.concurrent.atomic.AtomicInteger24@@ -29,7 +29,7 @@ class SingleThreadedContext : ConcurrentExecutionContext {25    private val counter = AtomicInteger()26+   override val dispatcher: CoroutineDispatcher = Executors.newSingleThreadExecutor().asCoroutineDispatcher()27    override fun threadId(): Int = counter.incrementAndGet()28 }

concurrency

Using AI Code Generation

1KotestEngineLauncher()2.engineConcurrency(concurrencyClass)3.launch()4KotestEngineLauncher()5.engineConcurrency(concurrencyClass)6.launch()7KotestEngineLauncher()8.engineConcurrency(concurrencyClass)9.launch()10KotestEngineLauncher()11.engineConcurrency(concurrencyClass)12.launch()13KotestEngineLauncher()14.engineConcurrency(concurrencyClass)15.launch()16KotestEngineLauncher()17.engineConcurrency(concurrencyClass)18.launch()19KotestEngineLauncher()20.engineConcurrency(concurrencyClass)21.launch()22KotestEngineLauncher()23.engineConcurrency(concurrencyClass)24.launch()25KotestEngineLauncher()26.engineConcurrency(concurrencyClass)27.launch()28KotestEngineLauncher()29.engineConcurrency(concurrencyClass)30.launch()31KotestEngineLauncher()32.engineConcurrency(concurrencyClass)33.launch()34KotestEngineLauncher()35.engineConcurrency(concurrencyClass)36.launch()

concurrency

Using AI Code Generation

1test("this is a parallel test").config(enabled = true) {2}3test("this is a parallel test").config(enabled = true) {4}5test("this is a parallel test").config(enabled = true) {6}7test("this is a parallel test").config(enabled = true) {8}9test("this is a parallel test").config(enabled = true) {10}11test("this is a parallel test").config(enabled = true) {12}13test("this is a parallel test").config(enabled = true) {14}15test("this is a parallel test").config(enabled = true) {16}17test("this is a parallel test").config(enabled = true) {18}19test("this is a parallel test").config(enabled = true) {20}21test("this is a parallel test

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