Unlock 30% off on Manual Testing Annual Plans this Holiday Season.

Copied to Clipboard!

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

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

ServerTest.kt

Source: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>) {

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.