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How to use KotestTestRunner class of io.kotest.runner.junit4 package

Best Kotest code snippet using io.kotest.runner.junit4.KotestTestRunner

specs.kt

Source:specs.kt

1package io.kotest.runner.junit42import org.junit.runner.RunWith3@RunWith(KotestTestRunner::class)4abstract class FunSpec(body: io.kotest.core.spec.style.FunSpec.() -> Unit = {}) :5   io.kotest.core.spec.style.FunSpec(body)6@RunWith(KotestTestRunner::class)7abstract class StringSpec(body: io.kotest.core.spec.style.StringSpec.() -> Unit = {}) :8   io.kotest.core.spec.style.StringSpec(body)9@RunWith(KotestTestRunner::class)10abstract class ShouldSpec(body: io.kotest.core.spec.style.ShouldSpec.() -> Unit = {}) :11   io.kotest.core.spec.style.ShouldSpec(body)12@RunWith(KotestTestRunner::class)13abstract class DescribeSpec(body: io.kotest.core.spec.style.DescribeSpec.() -> Unit = {}) :14   io.kotest.core.spec.style.DescribeSpec(body)15@RunWith(KotestTestRunner::class)16abstract class ExpectSpec(body: io.kotest.core.spec.style.ExpectSpec.() -> Unit = {}) :17   io.kotest.core.spec.style.ExpectSpec(body)18@RunWith(KotestTestRunner::class)19abstract class FeatureSpec(body: io.kotest.core.spec.style.FeatureSpec.() -> Unit = {}) :20   io.kotest.core.spec.style.FeatureSpec(body)21@RunWith(KotestTestRunner::class)22abstract class FreeSpec(body: io.kotest.core.spec.style.FreeSpec.() -> Unit = {}) :23   io.kotest.core.spec.style.FreeSpec(body)24@RunWith(KotestTestRunner::class)25abstract class WordSpec(body: io.kotest.core.spec.style.WordSpec.() -> Unit = {}) :26   io.kotest.core.spec.style.WordSpec(body)27@RunWith(KotestTestRunner::class)28abstract class BehaviorSpec(body: io.kotest.core.spec.style.BehaviorSpec.() -> Unit = {}) :29   io.kotest.core.spec.style.BehaviorSpec(body)...

KotestTestRunner.kt

Source:KotestTestRunner.kt

...9import kotlinx.coroutines.runBlocking10import org.junit.runner.Description11import org.junit.runner.Runner12import org.junit.runner.notification.RunNotifier13class KotestTestRunner(14   private val kclass: Class<out Spec>15) : Runner() {16   private val formatter = DefaultDisplayNameFormatter(ProjectConfiguration())17   override fun run(notifier: RunNotifier) {18      runBlocking {19         val listener = JUnitTestEngineListener(notifier)20         TestEngineLauncher(listener).withClasses(kclass.kotlin).launch()21      }22   }23   override fun getDescription(): Description {24      val spec = runBlocking { createAndInitializeSpec(kclass.kotlin, EmptyExtensionRegistry).getOrThrow() }25      val desc = Description.createSuiteDescription(spec::class.java)26      Materializer(ProjectConfiguration()).materialize(spec).forEach { rootTest ->27         desc.addChild(...

HelloWorldTest.kt

Source:HelloWorldTest.kt

2import io.kotest.core.spec.style.FreeSpec3import io.kotest.matchers.ints.shouldBeLessThan4import io.kotest.matchers.string.shouldContain5import io.kotest.matchers.string.shouldStartWith6import io.kotest.runner.junit4.KotestTestRunner7import org.junit.runner.RunWith8@RunWith(KotestTestRunner::class)9class HelloWorldTest : FreeSpec() {10    init {11        "First Test" {12            1.shouldBeLessThan(2)13        }14        "String tests #@!*!$" - {15            "substring" {16                "helloworld".shouldContain("world")17            }18            "startwith" {19                "hello".shouldStartWith("he")20            }21        }22    }...

KotestTestRunner

Using AI Code Generation

1@RunWith(KotestTestRunner::class)2class MySpec : StringSpec({3"test" {4}5})6@ExtendWith(KotestTestRunner::class)7class MySpec : StringSpec({8"test" {9}10})

KotestTestRunner

Using AI Code Generation

1@RunWith(KotestTestRunner::class)2class MyKotestTest {3class MySpec : StringSpec({4"test" {5}6})7}8val engine = KotestEngine()9engine.execute(MySpec::class)10}

KotestTestRunner

Using AI Code Generation

1import io.kotest.runner.junit4.KotestTestRunner2@RunWith(KotestTestRunner::class)3class MyTest()4}5fun test1() {6}7assertEquals(1, 1)8assertEquals(1, 2)9assertNotEquals(1, 2)10assertNotEquals(1, 1)11assertNull(null)12assertNull(1)13assertNotNull(1)14assertNotNull(null)15assertThat(1, is(1))16assertThat(1, is(2))17assertThat(1, not(2))

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