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How to use test method of io.kotest.matchers.collections.size class

Best Kotest code snippet using io.kotest.matchers.collections.size.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})...

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() {...

MultimapTests.kt

Source:MultimapTests.kt

1package com.adidas.mvi2import io.kotest.assertions.assertSoftly3import io.kotest.core.spec.IsolationMode4import io.kotest.core.spec.style.BehaviorSpec5import io.kotest.matchers.collections.shouldBeEmpty6import io.kotest.matchers.collections.shouldContain7import io.kotest.matchers.collections.shouldHaveSize8import io.kotest.matchers.collections.shouldNotContain9import io.kotest.matchers.shouldBe10internal class MultimapTests : BehaviorSpec({11    isolationMode = IsolationMode.InstancePerLeaf12    given("An empty multimap") {13        val multimap = Multimap<String, Int>()14        `when`("I put a value") {15            val entry = multimap.put("Test", 1)16            then("The value should be returned") {17                entry shouldBe MultimapEntry("Test", 1)18            }19            then("The value should be in the map") {20                assertSoftly(multimap["Test"]) {21                    shouldHaveSize(1)22                    shouldContain(MultimapEntry("Test", 1))23                }...

UserApiV1Test.kt

Source:UserApiV1Test.kt

1package io.andrewohara.tabbychat.protocol.v1.api2import dev.forkhandles.result4k.valueOrNull3import dev.mrbergin.kotest.result4k.shouldBeFailure4import dev.mrbergin.kotest.result4k.shouldBeSuccess5import io.andrewohara.tabbychat.*6import io.andrewohara.tabbychat.auth.Realm7import io.andrewohara.tabbychat.contacts.TokenData8import io.andrewohara.tabbychat.protocol.v1.client.UserClientV19import io.andrewohara.tabbychat.protocol.v1.toDtoV110import io.andrewohara.utils.jdk.minus11import io.kotest.matchers.collections.shouldBeEmpty12import io.kotest.matchers.collections.shouldContainExactly13import io.kotest.matchers.collections.shouldHaveSize14import io.kotest.matchers.nulls.shouldBeNull15import io.kotest.matchers.shouldBe16import org.http4k.core.Uri17import org.junit.jupiter.api.Test18import java.time.Duration19class UserApiV1Test {20    private val driver = TestDriver()21    private val provider = driver.createProvider(Realm(Uri.of("http://tabby.chat")))22    private val self = provider.createUser("self")23    private val selfToken: TokenData = provider.service.createAccessToken(self.id).valueOrNull()!!24    private val contact = provider.createUser("contact").also {25        driver.givenContacts(self, it)26    }27    private val other = provider.createUser("other")28    private val client = UserClientV1(selfToken.toDtoV1(), provider)29    @Test...

Kotest.kt

Source:Kotest.kt

1package io.kotest.plugin.pitest2import io.kotest.core.spec.style.FunSpec3import io.kotest.core.spec.style.StringSpec4import io.kotest.core.spec.style.WordSpec5import io.kotest.matchers.collections.shouldBeEmpty6import io.kotest.matchers.collections.shouldHaveSize7import io.kotest.matchers.shouldBe8class Kotest : FunSpec() {9  init {10    test("StringSpecs") {11      val resultCollector = findTestsIn(StringSpecs::class.java)12      resultCollector.skipped.shouldBeEmpty()13      resultCollector.started.shouldHaveSize(2)14      resultCollector.ended.shouldHaveSize(2)15      resultCollector.failures.shouldHaveSize(1)16    }17    test("FunSpecs") {18      val resultCollector = findTestsIn(FunSpecs::class.java)19      resultCollector.skipped.shouldBeEmpty()20      resultCollector.started.shouldHaveSize(2)21      resultCollector.ended.shouldHaveSize(2)22      resultCollector.failures.shouldHaveSize(1)23    }24    test("WordSpecs") {25      val resultCollector = findTestsIn(WordSpecs::class.java)26      resultCollector.skipped.shouldBeEmpty()27      resultCollector.started.shouldHaveSize(7)28      resultCollector.ended.shouldHaveSize(7)29      resultCollector.failures.shouldHaveSize(2)30    }31  }32  private fun findTestsIn(clazz: Class<*>): TestResultCollector {33    val resultCollector = TestResultCollector()34    KotestUnitFinder().findTestUnits(clazz)35        .stream()36        .forEach { testUnit -> testUnit.execute(resultCollector) }37    return resultCollector38  }39}40private class FunSpecs : FunSpec() {41   init {42      test("passing test") { 1 shouldBe 1 }43      test("failing test") { 1 shouldBe 2 }44   }45}46private class StringSpecs : StringSpec() {47   init {48      "passing test" { 1 shouldBe 1 }49      "failing test" { 1 shouldBe 2 }50   }51}52private class WordSpecs : WordSpec() {53   init {54      "should container" should {55         "passing test" { 1 shouldBe 1 }56         "failing test" { 1 shouldBe 2 }57      }58      "when container" `when` {59         "nested should container" should {60            "passing test" { 1 shouldBe 1 }61            "failing test" { 1 shouldBe 2 }62         }63      }64   }65}...

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" {...

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() {24        assertSoftly {25            animals.shouldHaveSize(2)26            animals27                .shouldBeInstanceOf<List<String>>()28                .shouldContain("Rex") // Doesn't let me chain here29            animals.shouldNotContain("Snow") // Doesn't let me chain here30            animals.shouldHaveSize(3)31        }32    }33    fun containPalyndrom() = object : Matcher<List<String>> {34        override fun test(value: List<String>): MatcherResult {35            return MatcherResult(36                value.any { it.reversed().equals(it, ignoreCase = true) },37                "List should contain palindrome",38                "List shouldn't contain palindrome"39            )40        }41    }42}...

TodoListControllerTest.kt

Source:TodoListControllerTest.kt

1package com.example.todo.controller2import com.example.todo.model.Todo3import com.example.todo.repository.TodoRepository4import io.kotest.core.spec.style.DescribeSpec5import io.kotest.matchers.collections.shouldContainAll6import io.kotest.matchers.collections.shouldHaveSize7import io.mockk.every8import io.mockk.mockk9import io.mockk.unmockkAll10import io.mockk.verify11class TodoListControllerTest : DescribeSpec({12    lateinit var mockTodoRepository: TodoRepository13    lateinit var todoController: TodoListController14    beforeTest {15        mockTodoRepository = mockk()16        todoController = TodoListController(mockTodoRepository)17    }18    describe("Test TODO controller endpoints") {19        it("should get all the TODOs") {20            val listOfExpectedTodos = listOf(Todo(1, "Read a book", false), Todo(2, "Hit the gym", true))...

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