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How to use StringSpecScope class of io.kotest.core.spec.style.scopes package

Best Kotest code snippet using io.kotest.core.spec.style.scopes.StringSpecScope

UnitSpec.kt

Source:UnitSpec.kt

...7import io.kotest.core.names.TestName8import io.kotest.core.source.SourceRef9import io.kotest.core.spec.RootTest10import io.kotest.core.spec.style.StringSpec11import io.kotest.core.spec.style.scopes.StringSpecScope12import io.kotest.core.spec.style.scopes.addTest13import io.kotest.core.test.TestType14import io.kotest.property.Arb15import io.kotest.property.Gen16import io.kotest.property.PropertyContext17import io.kotest.property.arbitrary.bind18import io.kotest.property.arbitrary.filter19import io.kotest.property.arbitrary.map20import io.kotest.property.arbitrary.list as KList21import io.kotest.property.arbitrary.map as KMap22import io.kotest.property.checkAll23import kotlin.jvm.JvmOverloads24import kotlin.math.max25/**26 * Base class for unit tests27 */28public abstract class UnitSpec(29  public val iterations: Int = 250,30  public val maxDepth: Int = 15,31  spec: UnitSpec.() -> Unit = {}32) : StringSpec() {33  public constructor(spec: UnitSpec.() -> Unit) : this(250, 15, spec)34  public fun <A> Arb.Companion.list(gen: Gen<A>, range: IntRange = 0..maxDepth): Arb<List<A>> =35    Arb.KList(gen, range)36  public fun <A> Arb.Companion.nonEmptyList(arb: Arb<A>, depth: Int = maxDepth): Arb<NonEmptyList<A>> =37    Arb.list(arb, 1..max(1, depth)).filter(List<A>::isNotEmpty).map(NonEmptyList.Companion::fromListUnsafe)38  public fun <A> Arb.Companion.sequence(arbA: Arb<A>, range: IntRange = 0..maxDepth): Arb<Sequence<A>> =39    Arb.list(arbA, range).map { it.asSequence() }40  @JvmOverloads41  public inline fun <reified A> Arb.Companion.array(gen: Arb<A>, range: IntRange = 0..maxDepth): Arb<Array<A>> =42    Arb.list(gen, range).map { it.toTypedArray() }43  public fun <K, V> Arb.Companion.map(44    keyArb: Arb<K>,45    valueArb: Arb<V>,46    minSize: Int = 1,47    maxSize: Int = 1548  ): Arb<Map<K, V>> =49    Arb.KMap(keyArb, valueArb, minSize = minSize, maxSize = maxSize)50  init {51    spec()52  }53  public fun testLaws(vararg laws: List<Law>): Unit = laws54    .flatMap { list: List<Law> -> list.asIterable() }55    .distinctBy { law: Law -> law.name }56    .forEach { law: Law ->57      addTest(TestName(null, law.name, false), false, null) {58        law.test(StringSpecScope(this.coroutineContext, testCase))59      }60    }61  public fun testLaws(prefix: String, vararg laws: List<Law>): Unit = laws62    .flatMap { list: List<Law> -> list.asIterable() }63    .distinctBy { law: Law -> law.name }64    .forEach { law: Law ->65      addTest(TestName(prefix, law.name, false), false, null) {66        law.test(StringSpecScope(this.coroutineContext, testCase))67      }68    }69  public suspend fun checkAll(property: suspend PropertyContext.() -> Unit): PropertyContext =70    checkAll(iterations, Arb.unit()) { property() }71  public suspend fun <A> checkAll(72    genA: Arb<A>,73    property: suspend PropertyContext.(A) -> Unit74  ): PropertyContext =75    checkAll(76      iterations,77      genA,78      property79    )80  public suspend fun <A, B> checkAll(...

StringSpecRootScope.kt

Source:StringSpecRootScope.kt

...61   }62   /**63    * Adds a String Spec test using the default test case config.64    */65   operator fun String.invoke(test: suspend StringSpecScope.() -> Unit) {66      addTest(TestName(null, this, false), false, null) {67         StringSpecScope(this.coroutineContext, testCase).test()68      }69   }70}71/**72 * This scope exists purely to stop nested string scopes.73 */74@KotestTestScope75class StringSpecScope(76   override val coroutineContext: CoroutineContext,77   override val testCase: TestCase78) : TestScope {79   override suspend fun registerTestCase(nested: NestedTest) {80      error("Cannot add nested tests using StringSpec")81   }82}

any_demo.kt

Source:any_demo.kt

1package nuggets.any2import io.kotest.core.spec.style.StringSpec3import io.kotest.core.spec.style.scopes.StringSpecScope4import io.kotest.matchers.shouldBe5data class Auction(6    val title: String,7    val age: Int8    // now try to add a property here, and see what happens (or change property type, remove it, et cetera)9) {10    companion object11}12object AuctionService {13    fun isOldEnough(auction: Auction) = auction.age > 1814}15class SomeAuctionTest : StringSpec() {16    init {17        "is old enough - too verbose" {18            // title defined here is irelevant, should be hidden! :-/19            val auction = Auction("foo", 12)20            val result = AuctionService.isOldEnough(auction)21            result shouldBe false22        }23        "is old enough - coupling" {24            // this requires to have a StringSpec scope, making it not reusable in any other context/test type! :-(25            val auction = newAuction()26            val result = AuctionService.isOldEnough(auction)27            result shouldBe false28        }29        "is old enough - improved" {30            // hide the irrelevant, and only state what's relevant for this specific test case :-)31            val auction = Auction.any().copy(age = 12)32            val result = AuctionService.isOldEnough(auction)33            result shouldBe false34        }35    }36}37// IDE warns in full justification about an unused receiver parameter, as we introduce a totally unnecessary coupling here! :-(38fun StringSpecScope.newAuction() = Auction("foo", 10)39fun createAuction() = Auction("foo", 10)40fun makeAuction() = Auction("foo", 10)41fun buildAuction() = Auction("foo", 10)42// while refactoring type name, this function stayed oldschool :-/43fun createAuctionItem() = Auction("foo", 10)44fun Auction.Companion.any() = Auction(45    title = "anyTitle",46    age = -147)48// seems to solve some issue, but actually not refactoring safe: in case property definitions change, have to do duplicate work! :-/49fun createAuction(50    // these arguments could be also considered to be moved into the any() method, would still lead to the some problem though :-/51    title: String = "defaultTitle",52    age: Int = 42...

Kotest.kt

Source:Kotest.kt

1package com.meamoria.mpp.kotest2import io.kotest.core.spec.style.StringSpec3import io.kotest.core.spec.style.scopes.StringSpecScope4import io.kotest.matchers.should5import io.kotest.matchers.shouldBe6import io.kotest.matchers.string.startWith7import io.kotest.matchers.types.shouldBeInstanceOf8import io.kotest.assertions.throwables.shouldThrow9import io.kotest.assertions.throwables.shouldNotThrowAny10actual typealias StringSpec = StringSpec11actual typealias StringSpecScope = StringSpecScope12actual fun fail(message: String): Nothing = io.kotest.assertions.fail(message)13actual infix fun <T> T.should(matcher: (T) -> Unit) = should(matcher)14actual infix fun <T, U : T> T.shouldBe(expected: U?) = shouldBe(expected)15actual inline fun <reified T : Any> Any?.shouldBeInstanceOf() = shouldBeInstanceOf<T>()16actual inline fun <reified T : Throwable> shouldThrow(block: () -> Any?): T = shouldThrow(block)17actual inline fun <T> shouldNotThrowAny(block: () -> T): T = shouldNotThrowAny(block)18actual fun startWith(prefix: String): (String?) -> Unit = { it should startWith(prefix) }...

StringSpecScope

Using AI Code Generation

1import io.kotest.core.spec.style.StringSpec2import io.kotest.core.spec.style.scopes.StringSpecScope3class StringSpecScopeTest : StringSpec() {4    init {5        "test case" {6        }7    }8}9import io.kotest.core.spec.style.WordSpec10import io.kotest.core.spec.style.scopes.WordSpecScope11class WordSpecScopeTest : WordSpec() {12    init {13        "test case" should {14        }15    }16}17import io.kotest.core.spec.style.BehaviorSpec18import io.kotest.core.spec.style.scopes.BehaviorSpecScope19class BehaviorSpecScopeTest : BehaviorSpec() {20    init {21        Given("test case") {22        }23    }24}25import io.kotest.core.spec.style.FeatureSpec26import io.kotest.core.spec.style.scopes.FeatureSpecScope27class FeatureSpecScopeTest : FeatureSpec() {28    init {29        Feature("test case") {30        }31    }32}33import io.kotest.core.spec.style.ExpectSpec34import io.kotest.core.spec.style.scopes.ExpectSpecScope35class ExpectSpecScopeTest : ExpectSpec() {36    init {37        Expect("test case") {38        }39    }40}41import io.kotest.core.spec.style.FreeSpec42import io.kotest.core.spec.style.scopes.FreeSpecScope43class FreeSpecScopeTest : FreeSpec() {44    init {45        "test case" - {46        }47    }48}49import io.kotest.core.spec.style.ShouldSpec50import io.kotest.core.spec.style.scopes.ShouldSpecScope51class ShouldSpecScopeTest : ShouldSpec() {52    init {

StringSpecScope

Using AI Code Generation

1@ExperimentalKotest val stringSpec = StringSpec ({ "test" { } })2@ExperimentalKotest val featureSpec = FeatureSpec ({ Feature ( "test" ) { } })3@ExperimentalKotest val behaviorSpec = BehaviorSpec ({ Given ( "test" ) { } })4@ExperimentalKotest val describeSpec = DescribeSpec ({ Describe ( "test" ) { } })5@ExperimentalKotest val funSpec = FunSpec ({ test ( "test" ) { } })6@ExperimentalKotest val expectSpec = ExpectSpec ({ Expect ( "test" ) { } })7@ExperimentalKotest val freeSpec = FreeSpec ({ "test" - { } })8@ExperimentalKotest val shouldSpec = ShouldSpec ({ Should ( "test" ) { } })9@ExperimentalKotest val wordSpec = WordSpec ({ "test" When { } })10@ExperimentalKotest val expectSpec = ExpectSpec ({ Expect ( "test" ) { } })11@ExperimentalKotest val funSpec = FunSpec ({ test ( "test" ) { } })12@ExperimentalKotest val behaviorSpec = BehaviorSpec ({ Given ( "test" ) { } })13@ExperimentalKotest val describeSpec = DescribeSpec ({ Describe

StringSpecScope

Using AI Code Generation

1import io.kotest.core.spec.style.scopes.StringSpecScope2class StringSpecExample : StringSpec() {3    init {4        "test case 1" {5        }6        "test case 2" {7        }8        "test case 3" {9        }10    }11}12"test case 1" {13    context("context 1") {14    }15    context("context 2") {16    }17}18"test case 1" {19    given("given 1") {20    }21    given("given 2") {22    }23}24"test case 1" {25    when("when 1") {26    }27    when("when 2") {28    }29}30"test case 1" {31    and("and 1") {32    }33    and("and 2") {34    }35}36"test case 1" {37    then("then 1") {38    }39    then("then 2") {40    }41}

StringSpecScope

Using AI Code Generation

1import io.kotest.core.spec.style.scopes.StringSpecScope2class StringSpecExample : StringSpec({3    "test" {4    }5    "test $x" {6    }7    "test ${x}foo" {8    }9    "test ${x}foo".config(invocations = 5) {10    }11    "test ${x}foo".config(invocations = 5, threads = 2) {12    }13    "test ${x}foo".config(invocations = 5, threads = 2, tags = setOf(TagA)) {14    }15})16import io.kotest.core.spec.style.scopes.FunSpecScope17class FunSpecExample : FunSpec({18    test("test") {19    }20    test("test $x") {21    }22    test("test ${x}foo") {23    }

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