How to use threads class of io.kotest.matchers.concurrent package

Best Kotest code snippet using io.kotest.matchers.concurrent.threads

DefaultScriptTest.kt

Source:DefaultScriptTest.kt

...47            it.message.shouldBe("Boom!")48        }49    }50    @Test51    fun `join and interrupt a script that has child threads`() {52        val threadLatch = CountDownLatch(2)53        val script = DefaultScript(54            { _, exec ->55                repeat(2) {56                    exec.addThread(57                        thread {58                            try {59                                Thread.sleep(100000)60                            } catch (ex: InterruptedException) {61                                threadLatch.countDown()62                            }63                        }64                    )65                }...

DateHeaderProviderTests.kt

Source:DateHeaderProviderTests.kt

1package rawhttp.core.server2import io.kotest.matchers.ints.between3import io.kotest.matchers.shouldBe4import io.kotest.matchers.shouldHave5import org.junit.jupiter.api.Test6import rawhttp.core.RawHttpHeaders7import rawhttp.core.validDateHeader8import java.lang.Thread.sleep9import java.time.Duration10import java.util.concurrent.ConcurrentHashMap11import java.util.concurrent.CountDownLatch12import java.util.concurrent.TimeUnit13import java.util.concurrent.atomic.AtomicInteger14import java.util.function.Supplier15class DateHeaderProviderTests {16    @Test17    fun `Should be able to get a header once`() {18        val dateHeaderContainer = DateHeaderProvider(Duration.ofMillis(100)).get()19        dateHeaderContainer.asMap().size shouldBe 120        dateHeaderContainer shouldHave validDateHeader()21    }22    @Test23    fun `Should cache the Date Header for the requested Duration`() {24        val createDateHeaderCounter = AtomicInteger()25        val dateHeaderMock = Supplier<RawHttpHeaders> {26            createDateHeaderCounter.incrementAndGet()27            RawHttpHeaders.newBuilder().with("Date", Thread.currentThread().id.toString()).build()28        }29        val cacheDurationMillis = 50L30        val threadCount = 1031        val runsPerThread = 432        val sleepPerRun = 30L33        val dateHeaderProvider = DateHeaderProvider(Duration.ofMillis(cacheDurationMillis), dateHeaderMock)34        val dateHeaderValues = ConcurrentHashMap.newKeySet<String>()35        val threadIds = mutableSetOf<String>()36        val latch = CountDownLatch(threadCount)37        // Run m Threads, and on each Thread, get the Date header n times, sleeping t ms between each call38        for (t in 0 until threadCount) {39            Thread {40                for (r in 1 until runsPerThread) {41                    if (r > 1) sleep(sleepPerRun)42                    dateHeaderValues += dateHeaderProvider.get()["Date"]!!.first()43                }44                latch.countDown()45            }.apply { threadIds += id.toString() }.start()46        }47        latch.await(500, TimeUnit.MILLISECONDS) shouldBe true48        // as we set the Date values to each Thread ID49        dateHeaderValues shouldBe threadIds50        // each of the 10 Threads tries to get a header every 30ms. The cache for headers lasts for 50ms,51        // and it's thread-local so each Thread gets its own version, so they should get a cached one every second try.52        // Because each Thread runs 4 times, each Thread should cause 2 headers to be created...53        // In practice, it can happen that a Thread gets so delayed that it gets 3 or 4 headers, but we expect that54        // to happen only a few times... but it does happen a lot on GitHub Actions, so let's be satisfied as long55        // as not ALL requests were so late that none came from the cache :O56        val expectedNewHeaders = threadCount * 257        // at least some requests should come from the cache58        val maxExpectedNewHeaders = (threadCount * 4) - 1059        // a few extra calls to the factory method are allowed because we don't synchronize60        createDateHeaderCounter.get() shouldBe between(expectedNewHeaders, maxExpectedNewHeaders)61    }62}...

RotatingKeyStorePostgresTest.kt

Source:RotatingKeyStorePostgresTest.kt

...46        }47    }48    @Test49    @Throws(InterruptedException::class)50    fun `rotation of rsa keys executed with n threads concurrency`() {51        val rotationInterval = Duration.ofSeconds(2)52        withMigratedDb {53            with(rotatingKeyStore(rotationInterval)) {54                val numberOfThreads = 455                val service = Executors.newFixedThreadPool(10)56                val latch = CountDownLatch(numberOfThreads)57                val initialKey: RSAKey = currentSigningKey()58                mockkFuture(rotationInterval)59                repeat(numberOfThreads) {60                    service.submit {61                        try {62                            val rotatedKey = currentSigningKey()63                            publicJWKSet().containsJWK(rotatedKey) shouldBe true64                            publicJWKSet().containsJWK(initialKey) shouldBe true...

KtorThreadingModelTest.kt

Source:KtorThreadingModelTest.kt

...39            this.dispatcher = newFixedThreadPoolContext(2, "test ktor dispatcher")40        }41        engine.start(wait = false)42        engine.application.slowApp()43        When("slow req bombarded with 100 threads") {44            val countdown = CountDownLatch(reqs)45            val initTime = System.currentTimeMillis()46            (0..reqs).forEach {47                reqExecutor.submit {48                    engine.handleRequest(HttpMethod.Get, "/slow").response.content49                    countdown.countDown()50                }51            }52            then("slow is slow") {53                countdown.await()54                val totalTime = System.currentTimeMillis() - initTime55                println(totalTime)56                totalTime shouldBeGreaterThan 200057            }58        }59        When("fast req bombarded with 100 threads") {60            val countdown = CountDownLatch(reqs)61            val initTime = System.currentTimeMillis()62            (0..reqs).forEach {63                reqExecutor.submit {64                    engine.handleRequest(HttpMethod.Get, "/fast").response.content65                    countdown.countDown()66                }67            }68            then("fast is faster") {69                countdown.await()70                val totalTime = System.currentTimeMillis() - initTime71                println(totalTime)72                totalTime shouldBeLessThan 200073            }...

WorldMapGeneratorTest.kt

Source:WorldMapGeneratorTest.kt

...32                    generatedWorld2 shouldNotBeSameInstanceAs generatedWorld133                }34            }35            val differentSeed = AtomicLong(seed + 1)36            "always generate a different world with different seed".config(invocations = 10, threads = 1) {37                delay(500)38                val generatedWorld3 = WorldMapGenerator(differentSeed.getAndIncrement(), width, height).generateWorld()39                assertSoftly {40                    val newTimestamp = System.currentTimeMillis()41                    lastTimestamp shouldNotBe newTimestamp42                    lastTimestamp = newTimestamp43                    generatedWorld3 shouldNot haveSameTerrain(generatedWorld1)44                    generatedWorld3 shouldNotBeSameInstanceAs generatedWorld145                }46            }47        }48        "A world" should {49            val minSize = Sector.TILE_COUNT * 250            "be at least of size $minSize * $minSize tiles" {...

EncryptorDecryptorTest.kt

Source:EncryptorDecryptorTest.kt

...37        actualDecrypted shouldContainExactlyInAnyOrder initialTextsToEncrypt38    }39    private fun threadPoolOfNumberOfProcessorsOrCoerceAtLeast3() =40        getRuntime().availableProcessors().coerceAtLeast(3).let { numberOfThreads ->41            println("executing with $numberOfThreads threads!")42            Executors.newFixedThreadPool(numberOfThreads)43        }44    private fun keystoreTypeEncryptorAndDecryptor() = listOf(JKS_KEYSTORE_CONF_PATH, PKCS12_KEYSTORE_CONF_PATH)45        .map { configPath -> KeystoreConfig(configPath.toFile()) }46        .map { config ->47            KeystoreHolder(File(config.keystorePath), config.storePassword).let {48                Arguments.arguments(49                    it.getType(),50                    it.getEncryptor(config.keystoreAlias),51                    it.getDecryptor(config.keystoreAlias, config.keyPassword)52                )53            }54        }55}...

ConcurrentSpec.kt

Source:ConcurrentSpec.kt

...16                productClient.send("body".toByteArray())17            }18            then("The messages are received") {19                eventually(Duration.seconds(5)) {20                    productListener.threads.size shouldBe 421                }22            }23        }24        ctx.close()25    }26})

ThreadsTests.kt

Source:ThreadsTests.kt

1package net.bnb1.commons.utils2import io.kotest.core.spec.style.FunSpec3import io.kotest.matchers.shouldBe4import io.kotest.matchers.shouldNotBe5import java.util.concurrent.ThreadFactory6class ThreadsTests : FunSpec({7    context("Threads.newFactory") {8        var factory: ThreadFactory? = null9        test("Create new factory") {10            factory = Threads.newFactory("test")11            factory shouldNotBe null12        }13        test("Use factory to create thread") {14            val thread = factory?.newThread {}!!15            thread.isDaemon shouldBe true16            thread.name shouldBe "test"17        }18    }19})...

threads

Using AI Code Generation

1import io.kotest.matchers.concurrent.shouldBeRunning2import io.kotest.matchers.concurrent.shouldBeWaiting3import io.kotest.matchers.concurrent.shouldBeTerminated4import io.kotest.matchers.concurrent.shouldBeTimedOut5import io.kotest.matchers.concurrent.shouldBeBlocked6import io.kotest.matchers.concurrent.shouldBeBlockedWithLock7import io.kotest.matchers.concurrent.shouldBeBlockedWithLocks8import io.kotest.matchers.concurrent.shouldBeBlockedWithSynchronizer9import io.kotest.matchers.concurrent.shouldBeBlockedWithSynchronizers10import io.kotest.matchers.concurrent.shouldBeBlockedWithWait11import io.kotest.matchers.concurrent.shouldBeBlockedWithWaitUntil12import io.kotest.matchers.concurrent.shouldBeBlockedWithWaitFor13import io.kotest.matchers.concurrent.shouldBeBlockedWithJoin14import io.kotest.matchers.concurrent.shouldBeBlockedWithJoinUntil15import io.kotest.matchers.concurrent.shouldBeBlockedWithJoinFor16import io.kotest.matchers.concurrent.shouldBeBlockedWithSleep17import io.kotest.matchers.concurrent.shouldBeBlockedWithSleepUntil18import io.kotest.matchers.concurrent.shouldBeBlockedWithSleepFor19import io.kotest.matchers.concurrent.shouldBeBlockedWithPark20import io.kotest.matchers.concurrent.shouldBeBlockedWithParkUntil21import io.kotest.matchers.concurrent.shouldBeBlockedWithParkFor22import io.kotest.matchers.concurrent.shouldBeBlockedWithParkNanos23import io.kotest.matchers.concurrent.shouldBeBlockedWithParkUntilNanos24import io.kotest.matchers.concurrent.shouldBeBlockedWithParkForNanos25import io.kotest.matchers.concurrent.shouldBeBlockedWithCondition26import io.kotest.matchers.concurrent.shouldBeBlockedWithConditions27import io.kotest.matchers.concurrent.shouldBeBlockedWithConditionUntil28import io.kotest.matchers.concurrent.shouldBeBlockedWithConditionFor29import io.kotest.matchers.concurrent.shouldBeBlockedWithConditionUntilNanos30import io.kotest.matchers.concurrent.shouldBeBlockedWithConditionForNanos31import io.kotest.matchers.concurrent.shouldBeRunning32import io.kotest.matchers.concurrent.shouldBeWaiting33import io.kotest.matchers.concurrent.shouldBeTerminated34import io.k

threads

Using AI Code Generation

1val thread = thread {2    println("Hello from thread")3}4thread should beRunning()5thread should notBeRunning()6thread should beWaiting()7thread should notBeWaiting()8thread should beTimedWaiting()9thread should notBeTimedWaiting()10thread should beBlocked()11thread should notBeBlocked()12thread should beTerminated()13thread should notBeTerminated()14thread should beAlive()15thread should notBeAlive()16thread should beDaemon()17thread should notBeDaemon()18thread should beInterrupted()19thread should notBeInterrupted()20thread should beInterruptible()21thread should notBeInterruptible()22thread should beSuspended()23thread should notBeSuspended()24thread should beSuspendedOn(object)25thread should notBeSuspendedOn(object)26thread should beSuspendedOn(object, object)27thread should notBeSuspendedOn(object, object)28thread should beSuspendedOn(object, object, object)29thread should notBeSuspendedOn(object, object, object)30thread should beSuspendedOn(object, object, object, object)31thread should notBeSuspendedOn(object, object, object, object)32thread should beSuspendedOn(object, object, object, object, object)33thread should notBeSuspendedOn(object, object, object, object, object)34thread should beSuspendedOn(object, object, object, object, object, object)35thread should notBeSuspendedOn(object, object, object, object, object, object)36thread should beSuspendedOn(object, object, object, object, object, object, object)37thread should notBeSuspendedOn(object, object, object, object, object, object, object)38thread should beSuspendedOn(object, object, object, object, object, object, object, object)39thread should notBeSuspendedOn(object, object, object, object, object, object, object, object)40thread should beSuspendedOn(object, object, object, object, object, object, object, object, object)41thread should notBeSuspendedOn(object, object, object, object, object, object, object, object, object)42thread should beSuspendedOn(object, object, object, object, object, object, object, object, object, object)43thread should notBeSuspendedOn(object, object, object, object, object, object, object, object, object, object)44thread should beSuspendedOn(object, object, object, object

threads

Using AI Code Generation

1thread should beDaemon()2thread should notBeDaemon()3thread should beInterrupted()4thread should notBeInterrupted()5thread should beInterruptible()6thread should notBeInterruptible()7thread should beSuspended()8thread should notBeSuspended()9thread should beSuspendedOn(object)10thread should notBeSuspendedOn(object)11thread should beSuspendedOn(object, object)12thread should notBeSuspendedOn(object, object)13thread should beSuspendedOn(object, object, object)14thread should notBeSuspendedOn(object, object, object)15thread should beSuspendedOn(object, object, object, object)16thread should notBeSuspendedOn(object, object, object, object)17thread should beSuspendedOn(object, object, object, object, object)18thread should notBeSuspendedOn(object, object, object, object, object)19thread should beSuspendedOn(object, object, object, object, object, object)20thread should notBeSuspendedOn(object, object, object, object, object, object)21thread should beSuspendedOn(object, object, object, object, object, object, object)22thread should notBeSuspendedOn(object, object, object, object, object, object, object)23thread should beSuspendedOn(object, object, object, object, object, object, object, object)24thread should notBeSuspendedOn(object, object, object, object, object, object, object, object)25thread should beSuspendedOn(object, object, object, object, object, object, object, object, object)26thread should notBeSuspendedOn(object, object, object, object, object, object, object, object, object)27thread should beSuspendedOn(object, object, object, object, object, object, object, object, object, object)28thread should notBeSuspendedOn(object, object, object, object, object, object, object, object, object, object)29thread should beSuspendedOn(object, object, object, object

threads

Using AI Code Generation

1import io.kotest.matchers.concurrent.shouldBeRunning2import io.kotest.matchers.concurrent.shouldBeTimedOut3import io.kotest.matchers.concurrent.shouldBeBlocked4import io.kotest.matchers.concurrent.shouldBeBlockedWithLock5import io.kotest.matchers.concurrent.shouldBeBlockedWithLocks6import io.kotest.matchers.concurrent.shouldBeBlockedWithSynchronizer7import io.kotest.matchers.concurrent.shouldBeBlockedWithSynchronizers8import io.kotest.matchers.concurrent.shouldBeBlockedWithWait9import io.kotest.matchers.concurrent.shouldBeBlockedWithWaitUntil10import io.kotest.matchers.concurrent.shouldBeBlockedWithWaitFor11import io.kotest.matchers.concurrent.shouldBeBlockedWithJoin12import io.kotest.matchers.concurrent.shouldBeBlockedWithJoinUntil13import io.kotest.matchers.concurrent.shouldBeBlockedWithJoinFor14import io.kotest.matchers.concurrent.shouldBeBlockedWithSleep15import io.kotest.matchers.concurrent.shouldBeBlockedWithSleepUntil16import io.kotest.matchers.concurrent.shouldBeBlockedWithSleepFor17import io.kotest.matchers.concurrent.shouldBeBlockedWithPark18import io.kotest.matchers.concurrent.shouldBeBlockedWithParkUntil19import io.kotest.matchers.concurrent.shouldBeBlockedWithParkFor20import io.kotest.matchers.concurrent.shouldBeBlockedWithParkNanos21import io.kotest.matchers.concurrent.shouldBeBlockedWithParkUntilNanos22import io.kotest.matchers.concurrent.shouldBeBlockedWithParkForNanos23import io.kotest.matchers.concurrent.shouldBeBlockedWithCondition24import io.kotest.matchers.concurrent.shouldBeBlockedWithConditions25import io.kotest.matchers.concurrent.shouldBeBlockedWithConditionUntil26import io.kotest.matchers.concurrent.shouldBeBlockedWithConditionFor27import io.kotest.matchers.concurrent.shouldBeBlockedWithConditionUntilNanos28import io.kotest.matchers.concurrent.shouldBeBlockedWithConditionForNanos29import io.kotest.matchers.concurrent.shouldBeRunning30import io.kotest.matchers.concurrent.shouldBeWaiting31import io.kotest.matchers.concurrent.shouldBeTerminated32import io.k

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