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How to use test method of io.kotest.matchers.should class

Best Kotest code snippet using io.kotest.matchers.should.test

ServerTest.kt

Source:ServerTest.kt

...21 * SOFTWARE.22 *23 */24package ttgamelib.net25import 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))53        } just Runs54    }55    val connection = ClientConnection(session).apply {56        name = userName57        id = clientId58    }59    return connection to sentPackets60}61internal class ServerTest : FunSpec({62    val engine = mockk<GameEngine>(relaxed = true)63    val (connection, sentPackets) = createConnection("player1", 1)64    lateinit var server: Server65    beforeEach {66        sentPackets.clear()67    }68    context("SendNamePacket") {69        val userName = "New User"70        server = Server("localhost", 1000, engine)71        test("should create new user if name is not in use") {72            server.handlePacket(SendNamePacket(userName), connection)73            val sent = sentPackets.decode<Packet>()74            sent[0].shouldBeInstanceOf<InitClientPacket>()75            (sent[0] as InitClientPacket).clientId shouldBe connection.id76            sent[1].shouldBeInstanceOf<ChatMessagePacket>()77            coVerify {78                engine.playerConnected(connection.id, userName)79            }80        }81        test("should request another name if in use") {82            val (connection2, sentPackets2) = createConnection("player2", 2)83            server.handlePacket(SendNamePacket(userName), connection2)84            val sent = sentPackets2.decode<SuggestNamePacket>()85            with (sent[0]) {86                name shouldNotBe userName87                taken.shouldContain(userName)88                disconnected.shouldBeFalse()89            }90        }91        test("should check for reconnection if disconnected") {92            server.connections.remove(connection.id)93            server.handlePacket(SendNamePacket(userName), connection)94            val sent = sentPackets.decode<SuggestNamePacket>()95            with (sent[0]) {96                name shouldNotBe userName97                taken.shouldContain(userName)98                disconnected.shouldBeTrue()99            }100        }101        test("should replace player on reconnection") {102            server.handlePacket(SendNamePacket(userName, true), connection)103            val sent = sentPackets.decode<Packet>()104            sent[0].shouldBeInstanceOf<InitClientPacket>()105            (sent[0] as InitClientPacket).clientId shouldBe connection.id106            sent[1].shouldBeInstanceOf<ChatMessagePacket>()107            coVerify {108                engine.playerReconnected(connection.id)109            }110        }111        test("should not replace player that is connected") {112            server.handlePacket(SendNamePacket(userName, true), connection)113            val sent = sentPackets.decode<SuggestNamePacket>()114            with (sent[0]) {115                name shouldNotBe userName116                disconnected.shouldBeFalse()117            }118        }119    }120    test("GameCommandPacket should be sent to game engine") {121        val packet = MessagePacket(object : GameMessage{})122        server.handlePacket(packet, connection)123        sentPackets.shouldBeEmpty()124        coVerify {125            engine.handle(connection.id, packet)126        }127    }128    context("chat command") {129        server = Server("localhost", 1000, engine)130        val connections = mutableListOf<ClientConnection>()131        val outgoing = mutableListOf<MutableList<Frame>>()132        for (i in 1..3) {133            with (createConnection("player$i", i)) {134                connections += first135                outgoing += second136                server.handlePacket(SendNamePacket(first.name), first)137            }138        }139        beforeEach {140            outgoing.forEach { it.clear() }141        }142        test("there should be three connected players") {143            connections.forAll {144                server.connections.shouldContainValue(it)145            }146        }147        test("emote should send message to all users") {148            forAll(149                row("/em is here"),150                row("/me is here")151            ) { msg ->152                server.handlePacket(ChatCommandPacket(connection.id, msg), connection)153            }154            outgoing.forEach {155                with (it.decode<ChatMessagePacket>()) {156                    shouldHaveSize(2)157                    forAll { it.message.shouldBeTypeOf<EmoteMessage>() }158                }159            }160        }161        test("whisper should send message to one user") {162            server.handlePacket(ChatCommandPacket(connections[0].id, "/w player2 a secret"), connections[0])163            outgoing[0].shouldHaveSize(1)164            outgoing[1].shouldHaveSize(1)165            outgoing[2].shouldBeEmpty()166        }167        test("whisper to unknown user should send info message to sender") {168            server.handlePacket(ChatCommandPacket(connections[1].id, "/w nobody a secret"), connections[1])169            outgoing[0].shouldHaveSize(0)170            outgoing[2].shouldHaveSize(0)171            outgoing[1].shouldHaveSize(1)172            outgoing[1].decode<ChatMessagePacket>().forAll {173                it.message.shouldBeTypeOf<InfoMessage>()174            }175        }176        test("unknown command should send info message to sender") {177            server.handlePacket(ChatCommandPacket(connections[1].id, "/foo bar baz"), connections[1])178            outgoing[0].shouldHaveSize(0)179            outgoing[2].shouldHaveSize(0)180            outgoing[1].shouldHaveSize(1)181            outgoing[1].decode<ChatMessagePacket>().forAll {182                it.message.shouldBeTypeOf<InfoMessage>()183            }184        }185    }186})...

RoomsKtTest.kt

Source:RoomsKtTest.kt

1package com.tylerkindy.betrayal.db2import com.tylerkindy.betrayal.Direction3import io.kotest.assertions.throwables.shouldThrow4import io.kotest.core.spec.style.DescribeSpec5import io.kotest.matchers.collections.shouldBeEmpty6import io.kotest.matchers.collections.shouldContainExactlyInAnyOrder7import io.kotest.matchers.should8import io.kotest.matchers.shouldBe9import io.kotest.property.Arb10import io.kotest.property.Exhaustive11import io.kotest.property.arbitrary.ShortShrinker12import io.kotest.property.arbitrary.arbitrary13import io.kotest.property.arbitrary.enum14import io.kotest.property.arbitrary.set15import io.kotest.property.checkAll16import io.kotest.property.exhaustive.ints17import io.kotest.property.exhaustive.map18import io.kotest.property.forAll19import org.jetbrains.exposed.sql.insert20import org.jetbrains.exposed.sql.select21import org.jetbrains.exposed.sql.selectAll22import org.jetbrains.exposed.sql.transactions.transaction23import kotlin.random.nextInt24val directionSets = Arb.set(Arb.enum<Direction>(), 0..Direction.values().size)25val rotations = Exhaustive.ints(0..3).map { it.toShort() }26val invalidRotationValues = (Short.MIN_VALUE..Short.MAX_VALUE) - (0..3)27val invalidRotations = arbitrary(listOf(Short.MIN_VALUE, -1, 4, Short.MAX_VALUE), ShortShrinker) {28    it.random.nextInt(invalidRotationValues.indices).let { i -> invalidRotationValues[i] }.toShort()29}30class RoomsKtTest : DescribeSpec({31    useDatabase()32    describe("returnRoomToStack") {...

CategoryRepositoryCreateSpec.kt

Source:CategoryRepositoryCreateSpec.kt

1package com.gaveship.category.domain.model2import com.gaveship.category.Mock3import io.kotest.assertions.throwables.shouldThrow4import io.kotest.core.spec.style.ExpectSpec5import io.kotest.matchers.collections.shouldHaveSize6import io.kotest.matchers.collections.singleElement7import io.kotest.matchers.nulls.beNull8import io.kotest.matchers.shouldBe9import io.kotest.matchers.shouldHave10import io.kotest.matchers.shouldNot11import io.kotest.property.Arb12import io.kotest.property.arbitrary.chunked13import io.kotest.property.arbitrary.next14import io.kotest.property.arbitrary.single15import io.kotest.property.arbitrary.string16import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest17import org.springframework.data.jpa.repository.config.EnableJpaAuditing18import javax.validation.ConstraintViolation19import javax.validation.ConstraintViolationException20@EnableJpaAuditing21@DataJpaTest(22    showSql = true,23    properties = [24        "spring.flyway.enabled=false",25        "spring.jpa.hibernate.ddl-auto=create"26    ]27)28class CategoryRepositoryCreateSpec(29    private val categoryRepository: CategoryRepository30) : ExpectSpec() {...

VendedorTest.kt

Source:VendedorTest.kt

1package ar.edu.unahur.obj2.vendedores2import io.kotest.assertions.throwables.shouldThrowAny3import io.kotest.core.spec.style.DescribeSpec4import io.kotest.matchers.booleans.shouldBeFalse5import io.kotest.matchers.booleans.shouldBeTrue6import io.kotest.matchers.collections.shouldContain7import io.kotest.matchers.collections.shouldContainAll8import io.kotest.matchers.collections.shouldNotContain9import io.kotest.matchers.should10import io.kotest.matchers.shouldBe11class ComercioTest : DescribeSpec({12  val buenosAires = Provincia(15000000)13  val santaFe = Provincia(9000000)14  val cordoba = Provincia(12000000)15  val entreRios = Provincia(1500000)16  val chivilcoy = Ciudad(buenosAires)17  val bragado = Ciudad(buenosAires)18  val lobos = Ciudad(buenosAires)19  val pergamino = Ciudad(buenosAires)20  val zarate = Ciudad(buenosAires)21  val rosario = Ciudad(santaFe)22  val rafaela = Ciudad(santaFe)23  val sanFrancisco = Ciudad(cordoba)24  val diamante = Ciudad(entreRios)...

InMemoryHopRepositoryTest.kt

Source:InMemoryHopRepositoryTest.kt

...4import domain.hop.model.HopType5import domain.quantities.PercentRange6import domain.quantities.QuantityRange7import fixtures.sampleHop8import io.kotest.assertions.assertSoftly9import io.kotest.assertions.fail10import io.kotest.core.spec.style.ShouldSpec11import io.kotest.matchers.collections.shouldContainExactlyInAnyOrder12import io.kotest.matchers.maps.shouldHaveSize13import io.kotest.matchers.nulls.shouldNotBeNull14import io.kotest.matchers.shouldBe15import io.kotest.matchers.string.shouldNotBeBlank16class InMemoryHopRepositoryTest : ShouldSpec({17    val repoUnderTest = InMemoryHopRepository()18    beforeEach {19        repoUnderTest.clear()20    }21    should("find hop by name") {22        // Givent23        repoUnderTest.save(sampleHop)24        repoUnderTest.save(sampleHop.copy(name = "Cascade", similarTo = listOf("Citra")))25        repoUnderTest.save(sampleHop.copy(name = "Chinook", similarTo = listOf("Cascade", "Citra", "Chinook")))26        // When & Then27        repoUnderTest.findByName("Citra").shouldNotBeNull().apply {28            assertSoftly {29                name shouldBe "Citra"...

CategoryRepositorySelectSpec.kt

Source:CategoryRepositorySelectSpec.kt

1package com.gaveship.category.domain.model2import com.gaveship.category.Mock3import io.kotest.core.spec.style.StringSpec4import io.kotest.matchers.collections.shouldHaveSize5import io.kotest.matchers.collections.singleElement6import io.kotest.matchers.nulls.beNull7import io.kotest.matchers.shouldBe8import io.kotest.matchers.shouldHave9import io.kotest.matchers.shouldNot10import io.kotest.property.arbitrary.chunked11import io.kotest.property.arbitrary.single12import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest13import org.springframework.data.jpa.repository.config.EnableJpaAuditing14@EnableJpaAuditing15@DataJpaTest(16    showSql = true,17    properties = [18        "spring.flyway.enabled=false",19        "spring.jpa.hibernate.ddl-auto=create"20    ]21)22class CategoryRepositorySelectSpec(23    private val categoryRepository: CategoryRepository24) : StringSpec() {25    init {26        "Root Categories ì¡°í ì±ê³µ Test" {...

ExampleSpec.kt

Source:ExampleSpec.kt

1package org.example2import arrow.core.Either3import arrow.optics.Traversal4import arrow.typeclasses.Monoid5import io.kotest.assertions.arrow.core.shouldBeRight6import io.kotest.core.spec.style.StringSpec7import io.kotest.matchers.shouldBe8import io.kotest.matchers.types.shouldBeTypeOf9import io.kotest.property.Arb10import io.kotest.property.arbitrary.int11import io.kotest.property.arbitrary.list12import io.kotest.property.arbitrary.map13import io.kotest.property.arbitrary.positiveInt14import io.kotest.property.arbitrary.string15import io.kotest.property.arrow.core.MonoidLaws16import io.kotest.property.arrow.core.either17import io.kotest.property.arrow.core.functionAToB18import io.kotest.property.arrow.laws.testLaws19import io.kotest.property.arrow.optics.TraversalLaws20import kotlin.jvm.JvmInline21class ExampleSpec : StringSpec({22  "true shouldBe true" {23    true shouldBe true24  }25  "exception should fail" {26    // throw RuntimeException("Boom2!")27  }28  "kotest arrow extension use-cases" {29    // smart-cast abilities for arrow types30    Either.Right("HI").shouldBeRight().shouldBeTypeOf<String>()31  }32  // utilise builtin or costume Laws with Generators to verify behavior33  testLaws(34    MonoidLaws.laws(Monoid.list(), Arb.list(Arb.string())),35    MonoidLaws.laws(Monoid.numbers(), Arb.numbers())36  )37  // optics Laws from arrow38  testLaws(39    TraversalLaws.laws(40      traversal = Traversal.either(),41      aGen = Arb.either(Arb.string(), Arb.int()),42      bGen = Arb.int(),43      funcGen = Arb.functionAToB(Arb.int()),44    )45  )46})47fun Arb.Companion.numbers(): Arb<Numbers> =48  Arb.positiveInt().map { it.toNumber() }49fun Int.toNumber(): Numbers =50  if (this <= 0) Zero else Suc(minus(1).toNumber())51// natural numbers form a monoid52fun Monoid.Companion.numbers(): Monoid<Numbers> =...

FunSpecSimpleTest.kt

Source:FunSpecSimpleTest.kt

1package com.kotlinspring.styles2import io.kotest.assertions.json.shouldEqualJson3import io.kotest.assertions.json.shouldNotEqualJson4import io.kotest.core.spec.style.FunSpec5import io.kotest.matchers.should6import io.kotest.matchers.shouldBe7import io.kotest.matchers.string.endWith8import io.kotest.matchers.string.shouldContain9import io.kotest.matchers.string.startWith10class FunSpecSimpleTest : FunSpec({11    test("name of tester should return the correct length") {12        val nameTester = "Matheus Marin"13        nameTester.shouldContain("Matheus")14        nameTester.length shouldBe 1315        nameTester should startWith("Matheus")16        nameTester should endWith("Marin")17    }18    test("a json with a developer should be valid") {19        val json = """ { "age" : 23, "name": "matheus", "location": "sao paulo" } """20        json.shouldEqualJson(returnJsonOfAValidDev())21    }22    test("a json with a PO should be invalid") {23        val json = """ { "age" : 45, "name": "robert", "location": "rio de janeiro" } """24        json.shouldNotEqualJson(returnJsonOfAValidDev())25    }26}) {27    companion object {28        fun returnJsonOfAValidDev() : String{29            return  """ { "age" : 23, "name": "matheus", "location": "sao paulo" } """30        }31    }32}...

test

Using AI Code Generation

1	fun `should return a list of all the books`() {2		val book1 = Book("1", "Book 1", "Author 1", 100)3		val book2 = Book("2", "Book 2", "Author 2", 200)4		val book3 = Book("3", "Book 3", "Author 3", 300)5		val book4 = Book("4", "Book 4", "Author 1", 400)6		val book5 = Book("5", "Book 5", "Author 2", 500)7		val book6 = Book("6", "Book 6", "Author 3", 600)8		val book7 = Book("7", "Book 7", "Author 1", 700)9		val book8 = Book("8", "Book 8", "Author 2", 800)10		val book9 = Book("9", "Book 9", "Author 3", 900)11		val book10 = Book("10", "Book 10", "Author 1", 1000)12		val book11 = Book("11", "Book 11", "Author 2", 1100)13		val book12 = Book("12", "Book 12", "Author 3", 1200)14		val book13 = Book("13", "Book 13", "Author 1", 1300)15		val book14 = Book("14", "Book 14", "Author 2", 1400)16		val book15 = Book("15", "Book 15", "Author 3", 1500)17		val books = listOf(book1, book2, book3, book4, book5, book6, book7, book8, book9, book10, book11, book12, book13, book14, book15)18		val result = bookService.findAll()19	}

test

Using AI Code Generation

1import io.kotest.matchers.shouldBe2class Test {3    fun test() {4        val list = listOf(1, 2, 3, 4, 5)5    }6}7import io.kotest.core.spec.style.FunSpec8class Test : FunSpec({9    test("test") {10        val list = listOf(1, 2, 3, 4, 5)11    }12})13import io.kotest.core.spec.style.StringSpec14class Test : StringSpec({15    "test" {16        val list = listOf(1, 2, 3, 4, 5)17    }18})19import io.kotest.core.spec.style.WordSpec20class Test : WordSpec({21    "test" should {22        "test" {23            val list = listOf(1, 2, 3, 4, 5)24        }25    }26})27import io.kotest.core.spec.style.FreeSpec28class Test : FreeSpec({29    "test" - {30        "test" {31            val list = listOf(1, 2, 3, 4, 5)32        }33    }34})35import io.kotest.core.spec.style.ShouldSpec36class Test : ShouldSpec({37    "test" {38        should("test") {39            val list = listOf(1, 2, 3, 4, 5)40        }41    }42})43import io.kotest.core.spec.style.ExpectSpec44class Test : ExpectSpec({45    context("test") {46        expect("test") {47            val list = listOf(1, 2, 3, 4, 5)48        }49    }50})

test

Using AI Code Generation

1class StringTest : ShouldSpec() {2    init {3        "A String" {4            "should have length" {5            }6            "should start with s" {7                "sammy" should startWith("s")8            }9        }10    }11}12class StringTest2 : ShouldSpec() {13    init {14        "A String" {15            "should have length" {16            }17            "should start with s" {18                "sammy" should startWith("s")19            }20        }21    }22}23class StringTest3 : ShouldSpec() {24    init {25        "A String" {26            "should have length" {27            }28            "should start with s" {29                "sammy" should startWith("s")30            }31        }32    }33}34class StringTest4 : ShouldSpec() {35    init {36        "A String" {37            "should have length" {38            }39            "should start with s" {40                "sammy" should startWith("s")41            }42        }43    }44}45class StringTest5 : ShouldSpec() {46    init {47        "A String" {48            "should have length" {49            }50            "should start with s" {51                "sammy" should startWith("s")52            }53        }54    }55}56class StringTest6 : ShouldSpec() {57    init {58        "A String" {59            "should have length" {60            }61            "should start with s" {62                "sammy" should startWith("s")63            }64        }65    }66}67class StringTest7 : ShouldSpec() {68    init {69        "A String" {70            "should have length" {

test

Using AI Code Generation

1        val result = add(1, 2)2        result.shouldBe(3)3    }4    fun `should add two numbers using result matcher`() {5        val result = add(1, 2)6    }7    fun `should add two numbers using matchers`() {8        val result = add(1, 2)9    }10    fun `should add two numbers using matchers with error message`() {11        val result = add(1, 2)12    }13    fun `should add two numbers using matchers with error message and lambda`() {14        val result = add(1, 2)15    }16    fun `should add two numbers using matchers with error message and lambda and string interpolation`() {17        val result = add(1, 2)18    }19    fun `should add two numbers using matchers with error message and lambda and string interpolation and string template`() {20        val result = add(1, 2)

test

Using AI Code Generation

1    test("test of function") {2        val result = function()3        result.shouldBe("Hello World")4    }5}6fun function(): String {7}

test

Using AI Code Generation

1class CalculatorUnitTest {2    fun addTwoNumbers() {3        val calculator = Calculator()4        calculator.add(2, 2) shouldBe 45    }6    fun subtractTwoNumbers() {7        val calculator = Calculator()8        calculator.subtract(4, 2) shouldBe 29    }10    fun multiplyTwoNumbers() {11        val calculator = Calculator()12        calculator.multiply(4, 2) shouldBe 813    }14    fun divideTwoNumbers() {15        val calculator = Calculator()16        calculator.divide(4, 2) shouldBe 217    }18    fun divideTwoNumbersWithDecimalPlaces() {19        val calculator = Calculator()20        calculator.divide(4, 3) shouldBe 1.333333333333333321    }22    fun divideTwoNumbersWithDecimalPlacesAndRounding() {23        val calculator = Calculator()24        calculator.divide(4, 3, 2) shouldBe 1.3325    }26    fun divideTwoNumbersWithDecimalPlacesAndRoundingWithRoundingDown() {27        val calculator = Calculator()

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