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How to use matchers class of io.kotest.matchers.types package

Best Kotest code snippet using io.kotest.matchers.types.matchers

ServerTest.kt

...25import io.kotest.core.spec.style.FunSpec26import io.kotest.data.forAll27import io.kotest.data.row28import io.kotest.inspectors.forAll29import io.kotest.matchers.booleans.shouldBeFalse30import io.kotest.matchers.booleans.shouldBeTrue31import io.kotest.matchers.collections.shouldBeEmpty32import io.kotest.matchers.collections.shouldContain33import io.kotest.matchers.collections.shouldHaveSize34import io.kotest.matchers.maps.shouldContainValue35import io.kotest.matchers.shouldBe36import io.kotest.matchers.shouldNotBe37import io.kotest.matchers.types.shouldBeInstanceOf38import io.kotest.matchers.types.shouldBeTypeOf39import io.ktor.http.cio.websocket.*40import io.mockk.*41import kotlinx.serialization.json.Json42import ttgamelib.GameEngine43private inline fun<reified T: Packet> List<Frame>.decode(): List<T> {44    return map {45        Json.decodeFromString(Packet.serializer(), (it as Frame.Text).readText()) as T46    }47}48private fun createConnection(userName: String, clientId: Int): Pair<ClientConnection, MutableList<Frame>> {49    val sentPackets = mutableListOf<Frame>()50    val session = mockk<DefaultWebSocketSession>().also {51        coEvery {52            it.send(capture(sentPackets))...

SeleniumStateMachineTest.kt

Source: SeleniumStateMachineTest.kt

...16package org.jitsi.jibri.selenium17import io.kotest.assertions.throwables.shouldThrow18import io.kotest.core.spec.IsolationMode19import io.kotest.core.spec.style.ShouldSpec20import io.kotest.matchers.types.beInstanceOf21import io.kotest.matchers.collections.haveSize22import io.kotest.matchers.should23import io.kotest.matchers.shouldBe24import org.jitsi.jibri.status.ComponentState25internal class SeleniumStateMachineTest : ShouldSpec() {26    override fun isolationMode(): IsolationMode? = IsolationMode.InstancePerLeaf27    private val stateUpdates = mutableListOf<Pair<ComponentState, ComponentState>>()28    private val seleniumStateMachine = SeleniumStateMachine()29    init {30        beforeSpec {31            seleniumStateMachine.onStateTransition { fromState, toState ->32                stateUpdates.add((fromState to toState))33            }34        }35        context("When starting up") {36            context("and the call is joined") {37                seleniumStateMachine.transition(SeleniumEvent.CallJoined)...

EventSerializationTest.kt

Source: EventSerializationTest.kt

...4import com.github.goodwillparking.robokash.util.ResourceUtil.loadTextResource5import io.kotest.assertions.asClue6import io.kotest.core.datatest.forAll7import io.kotest.core.spec.style.FreeSpec8import io.kotest.matchers.collections.shouldContain9import io.kotest.matchers.should10import io.kotest.matchers.shouldBe11import io.kotest.matchers.types.beInstanceOf12import io.kotest.matchers.types.shouldBeInstanceOf13import kotlin.reflect.KClass14internal class EventSerializationTest : FreeSpec({15    "events should deserialize" - {16        forAll<EventSetup<*>>(17            "url-verification" to { EventSetup(it, UrlVerification::class) },18            "event-callback" to EventSetup("message", EventCallback::class),19            "unknown" to EventSetup("app-requested", UnknownEvent::class)20        ) { (fileName, eventType) -> deserializeFromFile(fileName, eventType) }21    }22    "inner events should deserialize" - {23        "message" {24            deserializeFromFile<EventCallback<*>>("message") { deserialized ->25                deserialized.event.apply {26                    shouldBeInstanceOf<Message>()...

PropertyBasedTestingSpec.kt

Source: PropertyBasedTestingSpec.kt

1package sandbox.samples2import io.kotest.core.spec.style.StringSpec3import io.kotest.inspectors.forAll4import io.kotest.matchers.comparables.shouldBeGreaterThan5import io.kotest.matchers.shouldNotBe6import io.kotest.matchers.string.shouldHaveLength7import io.kotest.matchers.types.shouldBeInstanceOf8import io.kotest.property.Arb9import io.kotest.property.arbitrary.bind10import io.kotest.property.arbitrary.default11import io.kotest.property.arbitrary.positiveInts12import io.kotest.property.arbitrary.string13import io.kotest.property.checkAll14class PropertyBasedTestingSpec : StringSpec() {15    data class Person(val name: String, val age: Int)16    init {17        "can do property-based testing - with 100 examples" {18            checkAll<String, String> { a, b ->19                (a + b) shouldHaveLength(a.length + b.length)20            }21        }...

KoTestTest.kt

Source: KoTestTest.kt

1package com.example.testingcomparison2import io.kotest.assertions.assertSoftly3import io.kotest.matchers.Matcher4import io.kotest.matchers.MatcherResult5import io.kotest.matchers.collections.shouldContain6import io.kotest.matchers.collections.shouldHaveSize7import io.kotest.matchers.collections.shouldNotContain8import io.kotest.matchers.should9import io.kotest.matchers.types.shouldBeInstanceOf10import org.junit.Test11class KoTestTest {12    private val animals = listOf("Rex", "Caramel", "Joe", "Anna")13    @Test14    fun kotest() {15        animals should containPalyndrom()16        animals17            .shouldBeInstanceOf<List<String>>()18            .shouldContain("Rex") // Doesn't let me chain here19        animals.shouldNotContain("Snow") // Doesn't let me chain here20        animals.shouldHaveSize(3)21    }22    @Test23    fun kotestSoftList() {...

CentroDistribucionTest.kt

Source: CentroDistribucionTest.kt

1package ar.edu.unahur.obj2.vendedores2import io.kotest.core.spec.style.DescribeSpec3import io.kotest.matchers.booleans.shouldBeFalse4import io.kotest.matchers.booleans.shouldBeTrue5import io.kotest.matchers.shouldBe6import io.kotest.matchers.types.shouldBeInstanceOf7import io.kotest.matchers.types.shouldBeSameInstanceAs8class CentroDistribucionTest : DescribeSpec({9  val misiones = Provincia(1300000)10  val sanIgnacio = Ciudad(misiones)11  val cordoba = Provincia(1000000)12  var rioCuarto = Ciudad(cordoba)13  describe("Vendedor fijo centro") {14    val obera = Ciudad(misiones)15    val vendedorFijo = VendedorFijo(obera)16    val centroDistribucion = CentroDistribucion(obera)17    var vendedorFijoCordoba = VendedorFijo(rioCuarto)18    describe("puedeTrabajarEn") {19      it("agregar vendedor") {20        println(centroDistribucion.vendedores.size.toString())21        centroDistribucion.agregarVendedor(vendedorFijoCordoba)...

AttachmentCategoryTest.kt

Source: AttachmentCategoryTest.kt

1package com.github.njuro.jard.attachment2import io.kotest.matchers.booleans.shouldBeTrue3import io.kotest.matchers.collections.shouldContainAll4import io.kotest.matchers.nulls.shouldBeNull5import io.kotest.matchers.nulls.shouldNotBeNull6import io.kotest.matchers.should7import io.kotest.matchers.shouldBe8import org.junit.jupiter.api.Test9internal class AttachmentCategoryTest {10    @Test11    fun `generate preview of attachment category`() {12        AttachmentCategory.IMAGE.preview.should {13            it.shouldNotBeNull()14            it.isHasThumbnail.shouldBeTrue()15            it.name shouldBe "IMAGE"16            it.mimeTypes.shouldContainAll("image/jpeg", "image/gif", "image/png", "image/bmp", "image/x-bmp")17            it.extensions.shouldContainAll(".jpg", ".gif", ".png", ".bmp")18        }19    }20    @Test21    fun `determine attachment category from mime type`() {...

PrimitiveSpec.kt

Source: PrimitiveSpec.kt

1package org.study2import io.kotest.core.spec.style.StringSpec3import io.kotest.matchers.booleans.shouldBeTrue4import io.kotest.matchers.shouldBe5import io.kotest.matchers.string.shouldHaveLength6import io.kotest.matchers.types.shouldBeInstanceOf7import io.kotest.property.forAll8class PrimitiveSpec : StringSpec({9    "åç¬¦ Char"{10        val a = 'a'11        a.shouldBe('a')12        a.code.shouldBe(97) //ASCII characters13        a.shouldBeInstanceOf<Char>()14    }15    "åç¬¦ä¸²"{16        val str = "hello world"17        str.shouldBe("hello world")18        str.shouldHaveLength(11)19        forAll<String, String> { a, b ->20            println("a:$a, b:$b")...

matchers

Using AI Code Generation

1import io.kotest.matchers.types.shouldBeSameInstanceAs2import io.kotest.matchers.collections.shouldContainAll3import io.kotest.matchers.comparables.shouldBeGreaterThan4import io.kotest.matchers.booleans.shouldBeTrue5import io.kotest.matchers.ints.shouldBeEven6import io.kotest.matchers.doubles.shouldBeGreaterThan7import io.kotest.matchers.floats.shouldBeGreaterThan8import io.kotest.matchers.longs.shouldBeEven9import io.kotest.matchers.chars.shouldBeLowerCase10import io.kotest.matchers.bytes.shouldBeEven11import io.kotest.matchers.dates.shouldBeBefore12import io.kotest.matchers.durations.shouldBeLessThan13import io.kotest.matchers.strings.shouldBeEmpty14import io.kotest.matchers.io.shouldBeEmpty15import io.kotest.matchers.maps.shouldContainKey16import io.kotest.matchers.sequences.shouldContainAll17import io.kotest.matchers.collections.shouldBeEmpty

matchers

Using AI Code Generation

1import io.kotest.matchers.types.shouldBeSameInstanceAs2import io.kotest.matchers.types.shouldBeTypeOf3import io.kotest.matchers.collections.shouldBeEmpty4import io.kotest.matchers.collections.shouldContain5import io.kotest.matchers.collections.shouldContainAll6import io.kotest.matchers.collections.shouldContainExactly7import io.kotest.matchers.collections.shouldContainInOrder8import io.kotest.matchers.collections.shouldContainKey9import io.kotest.matchers.collections.shouldContainKeys10import io.kotest.matchers.collections.shouldContainValue11import io.kotest.matchers.collections.shouldContainValues12import io.kotest.matchers.collections.shouldEndWith13import io.kotest.matchers.collections.shouldHaveAtLeastOneElement14import io.kotest.matchers.collections.shouldHaveAtLeastSize15import io.kotest.matchers.collections.shouldHaveAtMostOneElement16import io.kotest.matchers.collections.shouldHaveAtMostSize17import io.kotest.matchers.collections.shouldHaveSingleElement18import io.kotest.matchers.collections.shouldHaveSize19import io.kotest.matchers.collections.shouldHaveTheSameElementsAs20import io.kotest.matchers.collections.shouldHaveUniqueElements21import io.kotest.matchers.collections.shouldNotBeEmpty22import io.kotest.matchers.collections.shouldNotContain23import io.kotest.matchers.collections.shouldNotContainAll24import io.kotest.matchers.collections.shouldNotContainInOrder25import io.kotest.matchers.collections.shouldNotContainKey26import io.kotest.matchers.collections.shouldNotContainKeys27import io.kotest.matchers.collections.shouldNotContainValue28import io.kotest.matchers.collections.shouldNotContainValues29import io.kotest.matchers.collections.shouldNotHaveAtLeastOneElement30import io.kotest.matchers.collections.shouldNotHaveAtLeastSize31import io.kotest.matchers.collections.shouldNotHaveAtMostOneElement32import io.kotest.matchers.collections.shouldNotHaveAtMostSize33import io.kotest.matchers.collections.shouldNotHaveSingleElement34import io.kotest.matchers.collections.shouldNotHaveSize35import io.kotest.matchers.collections.shouldNotHaveTheSameElementsAs36import io.kotest.matchers.collections.shouldNotHaveUniqueElements

matchers

Using AI Code Generation

1import io.kotest.matchers.types.shouldBeInstanceOf2fun main(args: Array<String>) {3str.shouldBeInstanceOf<String>()4}5import io.kotest.matchers.collections.shouldContain6fun main(args: Array<String>) {7val list = listOf("A", "B", "C")8list.shouldContain("B")9}10import io.kotest.matchers.numerics.shouldBeGreaterThan11fun main(args: Array<String>) {12num.shouldBeGreaterThan(5)13}14import io.kotest.matchers.string.shouldContain15fun main(args: Array<String>) {16str.shouldContain("Kotlin")17}18import io.kotest.matchers.string.shouldNotBeEmpty19fun main(args: Array<String>) {20str.shouldNotBeEmpty()21}22import io.kotest.matchers.string.shouldStartWith23fun main(args: Array<String>) {24str.shouldStartWith("Hello")25}26import io.kotest.matchers.string.shouldEndWith27fun main(args: Array<String>) {28str.shouldEndWith("Kotlin")29}30import io.kotest.matchers.string.shouldBeLowerCase31fun main(args: Array<String>) {32str.shouldBeLowerCase()33}34import io.kotest.matchers.string.shouldBeUpperCase35fun main(args: Array<String>) {36str.shouldBeUpperCase()37}38import io.kotest.matchers.string.shouldBeBlank39fun main(args: Array<String>) {

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