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How to use next method of io.kotest.assertions.until.Interval class

Best Kotest code snippet using io.kotest.assertions.until.Interval.next

eventually.kt

Source:eventually.kt

...104            throw e105         }106      }107      times++108      lastInterval = config.interval.next(times)109      val delayMark = TimeSource.Monotonic.markNow()110      delay(lastInterval)111      lastDelayPeriod = delayMark.elapsedNow()112   }113   errorCollector.setCollectionMode(originalAssertionMode)114   val message = StringBuilder().apply {115      appendLine("Eventually block failed after ${config.duration}; attempted $times time(s); ${config.interval} delay between attempts")116      if (predicateFailedTimes > 0) {117         appendLine("The provided predicate failed $predicateFailedTimes times")118      }119      if (firstError != null) {120         appendLine("The first error was caused by: ${firstError.message}")121         appendLine(firstError.stackTraceToString())122      }...

InventoryConsumerTest.kt

Source:InventoryConsumerTest.kt

1package org.learning.demo.app.consumer2import io.kotest.assertions.timing.EventuallyConfig3import io.kotest.assertions.timing.continually4import io.kotest.assertions.timing.eventually5import io.kotest.assertions.until.FixedInterval6import io.kotest.assertions.until.fixed7import io.kotest.matchers.shouldBe8import kotlinx.coroutines.runBlocking9import org.junit.jupiter.api.BeforeEach10import org.junit.jupiter.api.Test11import org.learning.demo.IntegrationTest12import org.learning.demo.app.repository.InventoryProduct13import org.learning.demo.app.repository.ProductRepository14import org.learning.demo.lib.kafka.KafkaMessage15import org.learning.demo.lib.kafka.producer.KafkaProducer16import org.learning.demo.lib.kafka.repository.ProcessedMessageAudit17import org.learning.demo.lib.kafka.repository.ProcessedMessageAuditRepository18import org.learning.demo.util.assertNextWith19import org.springframework.beans.factory.annotation.Autowired20import java.time.LocalDateTime21import kotlin.time.Duration.Companion.seconds22import kotlin.time.DurationUnit23import kotlin.time.toDuration24@IntegrationTest25class InventoryConsumerTest(26    @Autowired private val kafkaProducer: KafkaProducer,27    @Autowired private val productRepository: ProductRepository,28    @Autowired private val processedMessageAuditRepository: ProcessedMessageAuditRepository,29) {30    @BeforeEach31    fun setUp() {32        processedMessageAuditRepository.deleteAll().block()33    }34    @Test35    fun `should update count of remain products on consuming order created event`() {36        productRepository.saveAll(37            listOf(38                InventoryProduct("P-001", 20),39                InventoryProduct("P-002", 12),40                InventoryProduct("P-003", 12),41            )42        ).blockLast()43        kafkaProducer.produce(44            "order",45            KafkaMessage(46                eventId = "ev-00-11",47                eventName = "order-created",48                createdTime = "2020-01-01",49                partitionKey = "123",50                identifiers = mapOf(),51                payload = mapOf(52                    "orderId" to "001",53                    "totalPrice" to 234.56,54                    "products" to setOf(55                        mapOf(56                            "productCode" to "P-001",57                            "quantity" to 12,58                            "price" to 345.3259                        ),60                        mapOf(61                            "productCode" to "P-002",62                            "quantity" to 12,63                            "price" to 345.3264                        ),65                    )66                )67            )68        ).block()69        runBlocking {70            eventually(71                EventuallyConfig(72                    duration = 5.toDuration(DurationUnit.SECONDS),73                    interval = FixedInterval(100.toDuration(DurationUnit.MILLISECONDS))74                )75            ) {76                assertNextWith(productRepository.findByProductCode("P-001")) {77                    it.remainingQuantity shouldBe 878                }79                assertNextWith(productRepository.findByProductCode("P-002")) {80                    it.remainingQuantity shouldBe 081                }82                assertNextWith(productRepository.findByProductCode("P-003")) {83                    it.remainingQuantity shouldBe 1284                }85            }86        }87    }88    @Test89    fun `should not process duplicate message`() {90        processedMessageAuditRepository.save(91            ProcessedMessageAudit(92                eventId = "001_order-created",93                processedAt = LocalDateTime.now(),94                consumerGroupId = "inventory-consumer-group"95            )96        ).block()97        productRepository.saveAll(98            listOf(99                InventoryProduct("P-001", 20),100                InventoryProduct("P-002", 12),101                InventoryProduct("P-003", 12),102            )103        ).blockLast()104        kafkaProducer.produce(105            "order",106            KafkaMessage(107                eventId = "ev-00-11",108                eventName = "order-created",109                createdTime = "2020-01-01",110                partitionKey = "123",111                identifiers = mapOf(),112                payload = mapOf(113                    "orderId" to "001",114                    "totalPrice" to 234.56,115                    "products" to setOf(116                        mapOf(117                            "productCode" to "P-001",118                            "quantity" to 12,119                            "price" to 345.32120                        ),121                        mapOf(122                            "productCode" to "P-002",123                            "quantity" to 12,124                            "price" to 345.32125                        ),126                    )127                )128            )129        ).block()130        runBlocking {131            continually(5.seconds, 1.seconds.fixed()) {132                assertNextWith(productRepository.findByProductCode("P-001")) {133                    it.remainingQuantity shouldBe 20134                }135                assertNextWith(productRepository.findByProductCode("P-002")) {136                    it.remainingQuantity shouldBe 12137                }138                assertNextWith(productRepository.findByProductCode("P-003")) {139                    it.remainingQuantity shouldBe 12140                }141            }142        }143    }144}...

KafkaConsumerTest.kt

Source:KafkaConsumerTest.kt

1package org.learning.demo.lib.kafka.consumer2import io.kotest.assertions.timing.EventuallyConfig3import io.kotest.assertions.timing.eventually4import io.kotest.assertions.until.FixedInterval5import io.kotest.matchers.collections.shouldContainExactlyInAnyOrder6import io.kotest.matchers.collections.shouldHaveSize7import kotlinx.coroutines.runBlocking8import org.junit.jupiter.api.BeforeEach9import org.junit.jupiter.api.Test10import org.learning.demo.IntegrationTest11import org.learning.demo.lib.kafka.KafkaMessage12import org.learning.demo.lib.kafka.producer.KafkaProducer13import org.learning.demo.lib.kafka.repository.ProcessedMessageAudit14import org.learning.demo.lib.kafka.repository.ProcessedMessageAuditRepository15import org.learning.demo.util.assertNextWith16import org.springframework.beans.factory.annotation.Autowired17import java.time.LocalDateTime18import kotlin.time.DurationUnit19import kotlin.time.toDuration20@IntegrationTest21class KafkaConsumerTest(22    @Autowired private val kafkaProducer: KafkaProducer,23    @Autowired private val dummyKafkaConsumer: DummyKafkaConsumer,24    @Autowired private val processedMessageAuditRepository: ProcessedMessageAuditRepository,25) {26    @BeforeEach27    fun setUp() {28        processedMessageAuditRepository.deleteAll().block()29    }30    private val message = KafkaMessage(31        eventId = "EB-001",32        eventName = "consumer-event",33        createdTime = "2020-01-01",34        partitionKey = "12",35        identifiers = mapOf(36            "key1" to "val1"37        ),38        payload = mapOf(39            "message" to "hello"40        )41    )42    @Test43    fun `should consume new message only`() {44        processedMessageAuditRepository.save(45            ProcessedMessageAudit(46                eventId = "EB-000",47                processedAt = LocalDateTime.now(),48                consumerGroupId = "kafka-tryout-consumer-group"49            )50        ).block()51        kafkaProducer52            .produce(topic = "integration-test", message = message)53            .flatMap {54                kafkaProducer.produce(topic = "integration-test-v2", message.copy(eventId = "EB-000"))55            }56            .flatMap {57                kafkaProducer.produce(topic = "integration-test-v2", message.copy(eventId = "EB-002"))58            }59            .block()60        runBlocking {61            eventually(62                EventuallyConfig(63                    duration = 10.toDuration(DurationUnit.SECONDS),64                    interval = FixedInterval(1.toDuration(DurationUnit.SECONDS))65                )66            ) {67                val messages = dummyKafkaConsumer.getAllMessages()68                messages shouldHaveSize 269                messages shouldContainExactlyInAnyOrder listOf(70                    Triple("integration-test", emptyMap(), message),71                    Triple("integration-test-v2", emptyMap(), message.copy(eventId = "EB-002")),72                )73            }74        }75    }76    @Test77    fun `should save audit of processed message`() {78        processedMessageAuditRepository.save(79            ProcessedMessageAudit(80                eventId = "EB-000",81                processedAt = LocalDateTime.now(),82                consumerGroupId = "kafka-tryout-consumer-group"83            )84        ).block()85        kafkaProducer86            .produce(topic = "integration-test", message = message)87            .flatMap {88                kafkaProducer.produce(topic = "integration-test-v2", message.copy(eventId = "EB-002"))89            }90            .block()91        runBlocking {92            eventually(93                EventuallyConfig(94                    duration = 10.toDuration(DurationUnit.SECONDS),95                    interval = FixedInterval(1.toDuration(DurationUnit.SECONDS))96                )97            ) {98                assertNextWith(processedMessageAuditRepository.findAll().collectList()) {99                    it.map { r -> r.eventId } shouldContainExactlyInAnyOrder listOf("EB-000", "EB-001", "EB-002")100                }101            }102        }103    }104}...

ExponentialIntervalTest.kt

Source:ExponentialIntervalTest.kt

...12import kotlin.time.Duration.Companion.milliseconds13import kotlin.time.Duration.Companion.seconds14class ExponentialIntervalTest : FunSpec() {15   init {16      test("exponential interval should have a reasonable default next") {17         val identity = 2.seconds18         assertSoftly(identity.exponential()) {19            next(0) shouldBe identity * 120            next(1) shouldBe identity * 221            next(2) shouldBe identity * 422         }23         assertSoftly(identity.exponential(factor = 3.0)) {24            next(0) shouldBe identity * 125            next(1) shouldBe identity * 326            next(2) shouldBe identity * 927         }28      }29      test("exponential interval should have a reasonable default max") {30          val max = ExponentialInterval.defaultMax31          val default = 25.milliseconds.exponential()32          val unbounded = 25.milliseconds.exponential(max = null)33          val first = 034          val last = 2035          unbounded.next(first) shouldBeLessThan max36          unbounded.next(last) shouldBeGreaterThan max37          for (i in first..last) {38              val u = unbounded.next(i)39              val d = default.next(i)40              if (u < max) {41                  d shouldBe u42              } else {43                  d shouldBe max44                  u shouldBeGreaterThan max45              }46          }47      }48      test("exponential interval should respect user specified max") {49          val base = 25.milliseconds50          val n = 551          val max = base * ExponentialInterval.defaultFactor.pow(n)52          val bounded = base.exponential(max = max)53          val unbounded = base.exponential(max = null)54          val first = 055          val last = 2056          unbounded.next(first) shouldBeLessThan max57          unbounded.next(last) shouldBeGreaterThan max58          for (i in first..last) {59              val u = unbounded.next(i)60              val b = bounded.next(i)61              if (u < max) {62                  b shouldBe u63                  i shouldBeLessThan n64              } else {65                  i shouldBeGreaterThanOrEqualTo n66                  b shouldBe max67                  u shouldBeGreaterThanOrEqualTo max68              }69          }70      }71   }72}...

continually.kt

Source:continually.kt

...38               e39            )40         }41         times++42         delay(interval.next(times))43      }44      return result45   }46}47@Deprecated("Use continually with an interval, using Duration based poll is deprecated",48   ReplaceWith("continually(duration, poll.fixed(), f = f)", "io.kotest.assertions.until.fixed")49)50suspend fun <T> continually(duration: Duration, poll: Duration, f: suspend () -> T) =51   continually(duration, poll.fixed(), f = f)52suspend fun <T> continually(duration: Duration, interval: Interval = Duration.milliseconds(10).fixed(), f: suspend () -> T) =53   Continually<T>(duration, interval).invoke(f)...

OrderServiceIntegrationTest.kt

Source:OrderServiceIntegrationTest.kt

1package org.learning.demo.app.service2import io.kotest.assertions.timing.EventuallyConfig3import io.kotest.assertions.timing.eventually4import io.kotest.assertions.until.FixedInterval5import io.kotest.matchers.collections.shouldHaveSize6import io.kotest.matchers.maps.shouldContainAll7import kotlinx.coroutines.runBlocking8import org.junit.jupiter.api.BeforeEach9import org.junit.jupiter.api.Test10import org.learning.demo.IntegrationTest11import org.learning.demo.app.domain.Product12import org.learning.demo.app.view.CartView13import org.learning.demo.util.EmbeddedKafkaConsumer14import org.springframework.beans.factory.annotation.Autowired15import java.math.BigDecimal16import kotlin.time.DurationUnit17import kotlin.time.toDuration18@IntegrationTest19class OrderServiceIntegrationTest(20    @Autowired private val orderService: OrderService,21    @Autowired private val embeddedKafkaConsumer: EmbeddedKafkaConsumer22) {23    @BeforeEach24    fun setUp() {25        embeddedKafkaConsumer.clearTopic("order")26    }27    @Test28    fun `should raise order created event on order creation`() {29        val product = Product(productCode = "P-0022", quantity = 3, price = BigDecimal("20.34"))30        orderService.createOrderFrom(CartView(id = "C-002", products = setOf(product))).block()31        runBlocking {32            eventually(33                EventuallyConfig(34                    duration = 5.toDuration(DurationUnit.SECONDS),35                    interval = FixedInterval(1.toDuration(DurationUnit.SECONDS))36                )37            ) {38                val messages = embeddedKafkaConsumer.readNextMessage("order", "order-created")39                messages shouldHaveSize 140                messages.first().payload shouldContainAll mapOf(41                    "products" to listOf(42                        mapOf(43                            "productCode" to "P-0022",44                            "quantity" to 3,45                            "price" to 20.34,46                        )47                    ),48                    "totalPrice" to 61.02,49                    "eventName" to "order-created"50                )51            }52        }53    }54}...

FibonacciIntervalTest.kt

Source:FibonacciIntervalTest.kt

...23          val default = 10.minutes.fibonacci()24          val unbounded = 10.minutes.fibonacci(null)25          val first = 026          val last = 2027          unbounded.next(first) shouldBeLessThan max28          unbounded.next(last) shouldBeGreaterThan max29          for (i in first..last) {30              val u = unbounded.next(i)31              val d = default.next(i)32              if (u < max) {33                  d shouldBe u34              } else {35                  d shouldBe max36                  u shouldBeGreaterThan max37              }38          }39      }40      test("fibonacci interval should respect user specified max") {41          val max = FibonacciInterval.defaultMax.plus(15.minutes)42          val bounded = 10.minutes.fibonacci(max)43          val unbounded = 10.minutes.fibonacci(null)44          val first = 045          val last = 2046          unbounded.next(first) shouldBeLessThan max47          unbounded.next(last) shouldBeGreaterThan max48          for (i in first..last) {49              val u = unbounded.next(i)50              val b = bounded.next(i)51              if (u < max) {52                  b shouldBe u53              } else {54                  b shouldBe max55                  u shouldBeGreaterThan max56              }57          }58      }59   }60}...

Interval.kt

Source:Interval.kt

...4 * A [Interval] determines how often Kotest will invoke the predicate function for an [until] block.5 */6interface Interval {7   /**8    * Returns the next delay as a [Duration].9    *10    * @param count        The number of times the condition has been polled (evaluated) so far.11    * Always a positive integer.12    *13    * @return The duration of the next poll interval14    */15   fun next(count: Int): Duration16}...

Using AI Code Generation

1val interval = Interval(100, 1000)2val interval = Interval(100, 1000)3val interval = Interval(100, 1000)4val interval = Interval(100, 1000)5val interval = Interval(100, 1000)6val interval = Interval(100, 1000)7val interval = Interval(100, 1000)8val interval = Interval(100, 1000)9val interval = Interval(100, 1000)10val interval = Interval(100, 1000)11val interval = Interval(100, 1000)12val interval = Interval(100, 1000)13val interval = Interval(100, 1000)

Using AI Code Generation

1val interval = io.kotest.assertions.until.Interval(100, 5000)2val result = io.kotest.assertions.until.until(interval) {3}4val result = io.kotest.assertions.until.until(io.kotest.assertions.until.Interval(100, 5000)) {5}6val result = io.kotest.assertions.until.until(100, 5000) {7}8val result = io.kotest.assertions.until.until(100, 5000, 1000) {9}10val result = io.kotest.assertions.until.until(5000) {11}12val result = io.kotest.assertions.until.until(1000) {13}14val result = io.kotest.assertions.until.until(100) {15}16val result = io.kotest.assertions.until.until(100, 5000) {17}18val result = io.kotest.assertions.until.until(100, 5000, 1000) {19}20val result = io.kotest.assertions.until.until(100, 5000, 1000, 100) {21}22val result = io.kotest.assertions.until.until(100, 5000, 1000, 100, 1000) {23}

Using AI Code Generation

1val interval = Interval(100, 1000)2val result = interval.until("Hello") {3}4println(result)5val interval = Interval(100, 1000)6val result = interval.until(1) {7}8println(result)9val interval = Interval(100, 1000)10val result = interval.until(1) {11}12println(result)13val interval = Interval(100, 1000)14val result = interval.until(1) {15}16println(result)17val interval = Interval(100, 1000)18val result = interval.until(1) {19}20println(result)21val interval = Interval(100, 1000)22val result = interval.until(1) {23}24println(result)25val interval = Interval(100, 1000)26val result = interval.until(1) {27}28println(result)29val interval = Interval(100, 1000)30val result = interval.until(1) {31}32println(result)33val interval = Interval(100, 1000)34val result = interval.until(1) {35}36println(result)37val interval = Interval(100, 1000)38val result = interval.until(1) {39}40println(result)41val interval = Interval(100, 1000)42val result = interval.until(1) {43}44println(result)

Using AI Code Generation

1val interval = Interval(100, DurationUnit.MILLISECONDS)2val isTrue = until(interval) { condition }3val isFalse = until(interval) { !condition }4val isTrue = until(interval) { condition }5val isFalse = until(interval) { !condition }6val interval = Interval(100, DurationUnit.MILLISECONDS)7val isTrue = until(interval) { condition }8val isFalse = until(interval) { !condition }9val isTrue = until(interval) { condition }10val isFalse = until(interval) { !condition }11val interval = Interval(100, DurationUnit.MILLISECONDS)12val isTrue = until(interval) { condition }13val isFalse = until(interval) { !condition }14val interval = Interval(100, DurationUnit.MILLISECONDS)15val isTrue = until(interval) { condition }16val isFalse = until(interval) { !condition }17val interval = Interval(100, DurationUnit.MILLISECONDS)18val isTrue = until(interval) { condition }19val isFalse = until(interval) { !condition }20val interval = Interval(100, DurationUnit.MILLISECONDS)21val isTrue = until(interval) { condition }

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