How to use Exhaustive.flatMap method of io.kotest.property.exhaustive.Exhaustive class

Best Kotest code snippet using io.kotest.property.exhaustive.Exhaustive.Exhaustive.flatMap

TestCodeGenerators.kt

Source:TestCodeGenerators.kt Github

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1import io.kotest.property.Arb2import io.kotest.property.Exhaustive3import io.kotest.property.arbitrary.bind4import io.kotest.property.arbitrary.list5import io.kotest.property.arbitrary.take6import io.kotest.property.exhaustive.azstring7import io.kotest.property.exhaustive.collection8import konnekt.HeadersDeclaration9import konnekt.MimeEncodingsDeclaration10import konnekt.SourcesDeclaration11import konnekt.names12import konnekt.prelude.FormUrlEncoded13import konnekt.prelude.Multipart14fun functions(source: SourcesDeclaration): List<String> {15 val annotations = annotationVariants(source)16 return when (source) {17 SourcesDeclaration.PATH -> annotations.mapIndexed { i, annotation ->18 """|@GET("/test/{p}")19 |suspend fun test${source.name}$i($annotation r: Int): String""".trimMargin()20 }21 SourcesDeclaration.BODY, SourcesDeclaration.QUERY, SourcesDeclaration.PART, SourcesDeclaration.FIELD, SourcesDeclaration.HEADER -> annotations.mapIndexed { i, annotation ->22 """|${source.optInAnnotation()}23 |@GET("/test")24 |suspend fun test${source.name}$i($annotation r: Int): String""".trimMargin()25 }26 }27}28fun headerFunctions(): Iterable<String> {29 val annotations = headerAnnotationVariants.take(50)30 return annotations.mapIndexed { i, annotation ->31 """|@GET("/test")32 |$annotation33 |suspend fun testHEADERS_$i(): String""".trimMargin()34 }.asIterable()35}36fun mimeEncodingFunctions(encoding: MimeEncodingsDeclaration): Iterable<String> {37 val annotations = encoding.names.map { "@$it" }38 return annotations.mapIndexed { i, annotation ->39 """|$annotation40 |@GET("/test")41 |suspend fun testMIME_ENCODING_$i(): String""".trimMargin()42 }43}44private fun annotationVariants(it: SourcesDeclaration): List<String> {45 return when (it) {46 SourcesDeclaration.BODY -> it.names.map { "@$it" }47 SourcesDeclaration.PATH -> (it.names product listOf("\"p\"").named("value"))48 .let { oneArg ->49 val stringOnly = oneArg.map { (name, str) -> "@$name($str)" }50 val complete = (oneArg product booleanLiterals.named("encoded")).map { (name, str, bool) -> "@$name($str, $bool)" }51 stringOnly + complete52 }53 SourcesDeclaration.QUERY, SourcesDeclaration.FIELD -> (it.names product stringLiterals.named("value"))54 .let { oneArg ->55 val stringOnly = oneArg.map { (name, str) -> "@$name($str)" }56 val complete = (oneArg product booleanLiterals.named("encoded")).map { (name, str, bool) -> "@$name($str, $bool)" }57 stringOnly + complete58 }59 SourcesDeclaration.PART, SourcesDeclaration.HEADER -> (it.names product stringLiterals.named("value"))60 .map { (name, str) -> "@$name($str)" }61 }62}63private fun SourcesDeclaration.optInAnnotation(): String {64 val name = when (this) {65 SourcesDeclaration.PART -> Multipart::class.java.simpleName66 SourcesDeclaration.FIELD -> FormUrlEncoded::class.java.simpleName67 else -> null68 }69 return name?.let { "@$it" } ?: ""70}71private val headerAnnotationVariants = Arb.bind(72 Exhaustive.collection(HeadersDeclaration.names),73 Arb.list(Exhaustive.azstring(1..10).toArb())74) { name, args ->75 val varargs = args.joinToString(", "){ "\"$it\"" }76 "@$name($varargs)"77}78private val stringLiterals = listOf(""""p"""", "\"\"")79private val booleanLiterals = listOf("true", "false")80infix fun <T, E> List<T>.product(other: List<E>): List<Pair<T, E>> {81 return flatMap { l -> other.map { r -> l to r } }82}83@JvmName("productTriple")84infix fun <T, E, L> List<Pair<T, E>>.product(other: List<L>): List<Triple<T, E, L>> {85 return flatMap { (l1, l2) -> other.map { r -> Triple(l1, l2, r) } }86}87private fun List<String>.named(name: String): List<Argument> = flatMap {88 listOf(Argument(it, null), Argument(it, name))89}90data class Argument(val value: String, val name: String? = null) {91 override fun toString(): String =92 if (name != null) {93 "$name = $value"94 } else {95 value96 }97}...

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Exhaustive.kt

Source:Exhaustive.kt Github

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1package io.kotest.property.exhaustive2import io.kotest.property.Arb3import io.kotest.property.Exhaustive4import kotlin.jvm.JvmName5/**6 * Returns an [Exhaustive] which provides the values from the given list.7 * @param `as` a non empty list.8 * @return [Exhaustive]9 * @throws [IllegalArgumentException] if the `as` is a empty list.10 */11fun <A> exhaustive(`as`: List<A>): Exhaustive<A> = `as`.exhaustive()12fun <A> Exhaustive.Companion.of(vararg elements: A): Exhaustive<A> = Exhaustive.collection(elements.asList())13/**14 * Returns an [Exhaustive] which provides the values from the receiver.15 * @return [Exhaustive]16 * @throws [IllegalArgumentException] if the receiver is a empty list.17 */18@JvmName("exhaustiveExt")19fun <A> List<A>.exhaustive(): Exhaustive<A> {20 require(this.isNotEmpty()) { "Can't build a Exhaustive for a empty list." }21 return object : Exhaustive<A>() {22 override val values = this@exhaustive23 }24}25/**26 * Returns a new [Exhaustive] which will merge the values from this Exhaustive and the values of27 * the supplied Exhaustive together, taking one from each in turn.28 *29 * In other words, if genA provides 1,2,3 and genB provides 7,8,9 then the merged30 * gen would output 1,7,2,8,3,9.31 *32 * The supplied gen and this gen must have a common supertype.33 *34 * @param other the arg to merge with this one35 * @return the merged arg.36 */37fun <A, B : A, C : A> Exhaustive<B>.merge(other: Exhaustive<C>): Exhaustive<A> = object : Exhaustive<A>() {38 override val values: List<A> = this@merge.values.zip(other.values).flatMap { listOf(it.first, it.second) }39}40/**41 * Returns a new [Exhaustive] which takes its elements from the receiver and filters42 * them using the supplied predicate.43 * In other words this exhaustive is a subset of the elements as determined by the filter.44 */45fun <A> Exhaustive<A>.filter(predicate: (A) -> Boolean) = object : Exhaustive<A>() {46 override val values: List<A> =47 this@filter.values.filter { predicate(it) }48}49/**50 * @return a new [Exhaustive] by filtering this Exhaustives output by the negated function [f]51 */52fun <A> Exhaustive<A>.filterNot(f: (A) -> Boolean): Exhaustive<A> = filter { !f(it) }53/**54 * Returns a new [Exhaustive] which takes its elements from the receiver and maps them using the supplied function.55 */56fun <A, B> Exhaustive<A>.map(f: (A) -> B): Exhaustive<B> = object : Exhaustive<B>() {57 override val values: List<B> =58 this@map.values.map { f(it) }59}60/**61 * Returns a new [Exhaustive] which takes its elements from the receiver and maps them using the supplied function.62 */63fun <A, B> Exhaustive<A>.flatMap(f: (A) -> Exhaustive<B>): Exhaustive<B> = object : Exhaustive<B>() {64 override val values: List<B> =65 this@flatMap.values.flatMap { f(it).values }66}67/**68 * Wraps a [Exhaustive] lazily. The given [f] is only evaluated once,69 * and not until the wrapper [Exhaustive] is evaluated.70 * */71fun <A> Exhaustive.Companion.lazy(f: () -> Exhaustive<A>): Exhaustive<A> {72 return object : Exhaustive<A>() {73 override val values: List<A> by kotlin.lazy { f().values }74 }75}...

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cartesian.kt

Source:cartesian.kt Github

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1package io.kotest.property.exhaustive2import io.kotest.property.Exhaustive3fun <A, B, C> Exhaustive<A>.cartesian(other: Exhaustive<B>, f: (A, B) -> C): Exhaustive<C> {4 val cs = values.flatMap { _a ->5 other.values.map { _b ->6 f(_a, _b)7 }8 }9 return cs.exhaustive()10}11fun <A, B> Exhaustive<A>.cartesianPairs(other: Exhaustive<B>): Exhaustive<Pair<A, B>> {12 val pairs = values.flatMap { _a ->13 other.values.map { _b ->14 Pair(_a, _b)15 }16 }17 return pairs.exhaustive()18}19/**20 * Returns the cartesian join of this exhaustive with itself, with the results as pairs.21 */22fun <A> Exhaustive<A>.cartesianPairs(): Exhaustive<Pair<A, A>> {23 val cs = values.flatMap { _a ->24 values.map { _b ->25 Pair(_a, _b)26 }27 }28 return cs.exhaustive()29}30fun <A, B, C> Exhaustive.Companion.cartesian(a: Exhaustive<A>, b: Exhaustive<B>, f: (A, B) -> C): Exhaustive<C> {31 val cs = a.values.flatMap { _a ->32 b.values.map { _b ->33 f(_a, _b)34 }35 }36 return cs.exhaustive()37}38fun <A, B> Exhaustive.Companion.cartesianPairs(a: Exhaustive<A>, b: Exhaustive<B>): Exhaustive<Pair<A, B>> {39 val pairs = a.values.flatMap { _a ->40 b.values.map { _b ->41 Pair(_a, _b)42 }43 }44 return pairs.exhaustive()45}46fun <A, B, C, D> Exhaustive.Companion.cartesian(47 a: Exhaustive<A>,48 b: Exhaustive<B>,49 c: Exhaustive<C>,50 f: (A, B, C) -> D51): Exhaustive<D> {52 val ds = a.values.flatMap { _a ->53 b.values.flatMap { _b ->54 c.values.map { _c ->55 f(_a, _b, _c)56 }57 }58 }59 return ds.exhaustive()60}61fun <A, B, C, D, E> Exhaustive.Companion.cartesian(62 a: Exhaustive<A>,63 b: Exhaustive<B>,64 c: Exhaustive<C>,65 d: Exhaustive<D>,66 f: (A, B, C, D) -> E67): Exhaustive<E> {68 val es = a.values.flatMap { _a ->69 b.values.flatMap { _b ->70 c.values.flatMap { _c ->71 d.values.map { _d ->72 f(_a, _b, _c, _d)73 }74 }75 }76 }77 return es.exhaustive()78}79fun <A, B, C, D, E, F> Exhaustive.Companion.cartesian(80 a: Exhaustive<A>,81 b: Exhaustive<B>,82 c: Exhaustive<C>,83 d: Exhaustive<D>,84 e: Exhaustive<E>,85 f: (A, B, C, D, E) -> F86): Exhaustive<F> {87 val fs = a.values.flatMap { _a ->88 b.values.flatMap { _b ->89 c.values.flatMap { _c ->90 d.values.flatMap { _d ->91 e.values.map { _e ->92 f(_a, _b, _c, _d, _e)93 }94 }95 }96 }97 }98 return fs.exhaustive()99}...

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NumericTest.kt

Source:NumericTest.kt Github

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1package org.tesserakt.diskordin.util.typeclass2import io.kotest.core.spec.style.StringSpec3import io.kotest.core.spec.style.stringSpec4import io.kotest.data.forAll5import io.kotest.data.row6import io.kotest.matchers.shouldBe7import io.kotest.property.Arb8import io.kotest.property.arbitrary.*9import io.kotest.property.checkAll10import io.kotest.property.exhaustive.exhaustive11import org.tesserakt.diskordin.impl.util.typeclass.BigDecimalK12import org.tesserakt.diskordin.impl.util.typeclass.numeric13class NumericTest : StringSpec({14 include("Int ", Int.numeric().test())15 include("Long ", Long.numeric().test())16 include("Double ", Double.numeric().test())17 include("Float ", Float.numeric().test())18 include("Byte ", Byte.numeric().test())19 include("Short ", Short.numeric().test())20 include("BigDecimal ", BigDecimalK.numeric().test())21})22private fun <N : Number> Numeric<N>.test() = stringSpec {23 "Converting" {24 zero.toInt() shouldBe 025 zero.toFloat() shouldBe 0f26 zero.toLong() shouldBe 0L27 zero.toDouble() shouldBe 0.028 }29 "Addition" {30 forAll(31 row(1.fromInt(), 2.fromInt(), 3.fromInt()),32 row((-1).fromInt(), (-7).fromInt(), (-8).fromInt()),33 row(zero, zero, zero),34 row((-2).fromInt(), 5.fromInt(), 3.fromInt())35 ) { a, b, sum ->36 a + b shouldBe sum37 }38 }39 "Subtraction" {40 forAll(41 row(1.fromInt(), 2.fromInt(), (-1).fromInt()),42 row((-1).fromInt(), (-7).fromInt(), 6.fromInt()),43 row(zero, zero, zero),44 row((-2).fromInt(), 5.fromInt(), (-7).fromInt())45 ) { a, b, diff ->46 a - b shouldBe diff47 }48 }49 "Multiplication" {50 forAll(51 row(1.fromInt(), 2.fromInt(), 2.fromInt()),52 row((-1).fromInt(), (-7).fromInt(), 7.fromInt()),53 row(zero, zero, zero),54 row((-2).fromInt(), 5.fromInt(), (-10).fromInt())55 ) { a, b, product ->56 a * b shouldBe product57 }58 }59 "Absolute" {60 val numbers = Arb.bind(Arb.long(), Arb.int(), Arb.double(), Arb.float()) { long, int, double, float ->61 listOf(long.fromLong(), double.fromDouble(), int.fromInt(), float.fromFloat()).exhaustive()62 }.flatMap { it.toArb() }63 checkAll(numbers) { a: N ->64 (a.abs() >= zero) shouldBe true65 }66 }67}...

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ExhaustiveUtils.kt

Source:ExhaustiveUtils.kt Github

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1/*2 * Copyright (c) 2021 OneAndOlaf3 *4 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated5 * documentation files (the “Software”), to deal in the Software without restriction, including without limitation the6 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to7 * permit persons to whom the Software is furnished to do so, subject to the following conditions:8 *9 * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the10 * Software.11 *12 * THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE13 * WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR14 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR15 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.16 */17package com.github.oneandolaf.jsonext.testutils18import io.kotest.property.Exhaustive19import io.kotest.property.exhaustive.exhaustive20/**21 * Allows safe creation of an exhaustive generator for data that is mutable.22 */23fun <T> mutableExhaustive(generator: () -> Exhaustive<T>): Exhaustive<T> {24 return object : Exhaustive<T>() {25 override val values: List<T>26 get() = generator().values27 }28}29fun <A, B> Exhaustive<A>.mapMutable(f: (A) -> B): Exhaustive<B> = object : Exhaustive<B>() {30 override val values: List<B>31 get() = this@mapMutable.values.map { f(it) }32}33operator fun <A : B, B> Exhaustive<A>.minus(other: Exhaustive<B>): Exhaustive<A> {34 return (values.filter { it !in other.values }).exhaustive()35}36/**37 * Alternative to * that does not require `other`s type to be related to the type of `this`.38 */39infix fun <A, B> Exhaustive<A>.cross(other: Exhaustive<B>): Exhaustive<Pair<A, B>> {40 val values = this.values.flatMap { a ->41 other.values.map { b ->42 Pair(a, b)43 }44 }45 return values.exhaustive()46}...

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basics.kt

Source:basics.kt Github

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1package io.kotest.property.exhaustive2import io.kotest.property.Exhaustive3/**4 * Returns a [Exhaustive] of the two possible boolean values - true and false.5 */6fun Exhaustive.Companion.boolean(): Exhaustive<Boolean> = listOf(true, false).exhaustive()7/**8 * Returns a [Exhaustive] whose value is a single constant.9 */10fun <A> Exhaustive.Companion.constant(a: A): Exhaustive<A> = listOf(a).exhaustive()11fun Exhaustive.Companion.nullable(): Exhaustive<Nothing?> = listOf(null).exhaustive()12fun <A> Exhaustive<A>.andNull(): Exhaustive<A?> = (this.values + listOf(null)).exhaustive()13/**14 * Returns an Exhaustive which is the concatentation of this exhaustive values plus15 * the given exhaustive's values.16 */17operator fun <A> Exhaustive<A>.plus(other: Exhaustive<A>) = (this.values + other.values).exhaustive()18/**19 * Returns an Exhaustive which is the concatentation of this exhaustive values plus20 * the given exhaustive's values.21 *22 * Alias for [plus].23 */24fun <A> Exhaustive<A>.concat(other: Exhaustive<A>) = this + other25/**26 * Returns the cross product of two [Exhaustive]s.27 */28operator fun <A, B : A> Exhaustive<A>.times(other: Exhaustive<B>): Exhaustive<Pair<A, B>> {29 val values = this.values.flatMap { a ->30 other.values.map { b ->31 Pair(a, b)32 }33 }34 return values.exhaustive()35}...

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IntsTest.kt

Source:IntsTest.kt Github

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1package com.sksamuel.kotest.property.exhaustive2import io.kotest.core.spec.style.FunSpec3import io.kotest.matchers.shouldBe4import io.kotest.property.Exhaustive5import io.kotest.property.exhaustive.filter6import io.kotest.property.exhaustive.flatMap7import io.kotest.property.exhaustive.ints8import io.kotest.property.exhaustive.map9class IntsTest : FunSpec({10 test("should return all filtered Ints") {11 Exhaustive.ints(0..10)12 .filter { it % 2 == 0 }13 .map { it * 2 }14 .values shouldBe listOf(0, 4, 8, 12, 16, 20)15 }16 test("flatMap works too") {17 Exhaustive.ints(0..3)18 .flatMap { Exhaustive.ints(0..it) }19 .values shouldBe listOf(0, 0, 1, 0, 1, 2, 0, 1, 2, 3)20 }21})...

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strings.kt

Source:strings.kt Github

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1package io.kotest.property.exhaustive2import io.kotest.property.Exhaustive3fun Exhaustive.Companion.azstring(range: IntRange): Exhaustive<String> {4 fun az() = ('a'..'z').map { it.toString() }5 val values = range.toList().flatMap { size ->6 List(size) { az() }.reduce { acc, seq -> acc.zip(seq).map { (a, b) -> a + b } }7 }8 return values.exhaustive()9}...

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Exhaustive.flatMap

Using AI Code Generation

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1val intExhaustive = Exhaustive.ints(0..10)2val stringExhaustive = Exhaustive.strings(5)3val intStringExhaustive = intExhaustive.flatMap { i -> stringExhaustive.map { s -> i to s } }4val intStringExhaustive = intExhaustive.flatMap { i -> stringExhaustive.map { s -> i to s } }5val intExhaustive = Exhaustive.ints(0..10)6val stringExhaustive = Exhaustive.strings(5)7val intStringExhaustive = intExhaustive.flatMap { i -> stringExhaustive.map { s -> i to s } }8val intStringExhaustive = intExhaustive.flatMap { i -> stringExhaustive.map { s -> i to s } }9val intExhaustive = Exhaustive.ints(0..10)10val stringExhaustive = Exhaustive.strings(5)11val intStringExhaustive = intExhaustive.flatMap { i -> stringExhaustive.map { s -> i to s } }12val intStringExhaustive = intExhaustive.flatMap { i -> stringExhaustive.map { s -> i to s } }13val intExhaustive = Exhaustive.ints(0..10)14val stringExhaustive = Exhaustive.strings(5)15val intStringExhaustive = intExhaustive.flatMap { i -> stringExhaustive.map { s -> i to s } }16val intStringExhaustive = intExhaustive.flatMap { i -> stringExhaustive.map { s -> i to s } }17val intExhaustive = Exhaustive.ints(0..10)18val stringExhaustive = Exhaustive.strings(5)19val intStringExhaustive = intExhaustive.flatMap { i -> stringExhaustive.map { s -> i to s } }20val intStringExhaustive = intExhaustive.flatMap { i -> stringExhaustive.map { s ->

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Exhaustive.flatMap

Using AI Code Generation

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1val list1 = listOf(1, 2, 3)2val list2 = listOf("a", "b", "c")3Exhaustive.flatMap(list1, list2) { a, b -> a to b }4[(1, a), (1, b), (1, c), (2, a), (2, b), (2, c), (3, a), (3, b), (3, c)]5val list1 = listOf(1, 2, 3)6val list2 = listOf("a", "b", "c")7Exhaustive.cartesianProduct(list1, list2) { a, b -> a to b }8[(1, a), (1, b), (1, c), (2, a), (2, b), (2, c), (3, a), (3, b), (3, c)]9val list1 = listOf(1, 2, 3)10val list2 = listOf("a", "b", "c")11Exhaustive.zip(list1, list2) { a, b -> a to b }12[(1, a), (2, b), (3, c)]13val list1 = listOf(1, 2, 3)14val list2 = listOf("a", "b", "c")15Exhaustive.map(list1, list2) { a, b -> a to b }16[(1, a), (2, b), (3, c)]17val list1 = listOf(1, 2, 3)18val list2 = listOf("

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Exhaustive.flatMap

Using AI Code Generation

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1val result = Exhaustive .flatMap ( Exhaustive .ints ( 0 , 10 ), Exhaustive .ints ( 0 , 10 )) { a , b -> a + b }2val result = Exhaustive .map ( Exhaustive .ints ( 0 , 10 )) { a -> a + 1 }3val result = Exhaustive .mapNotNull ( Exhaustive .ints ( 0 , 10 )) { a -> if ( a > 5 ) a else null }4val result = Exhaustive .mapNotNull ( Exhaustive .ints ( 0 , 10 )) { a -> if ( a > 5 ) a else null }5val result = Exhaustive .shrink ( Exhaustive .ints ( 0 , 10 ), 5 )6val result = Exhaustive .shrink ( Exhaustive .ints ( 0 , 10 ), 5 )7val result = Exhaustive .shrink ( Exhaustive .ints ( 0 , 10 ), 5 )8val result = Exhaustive .shrink ( Exhaustive .ints ( 0 , 10 ), 5 )9val result = Exhaustive .shrink ( Exhaustive .ints (

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Exhaustive.flatMap

Using AI Code Generation

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1val exhaustive = Exhaustive . of ( 1 , 2 , 3 , 4 , 5 ) 2 val result = exhaustive . flatMap { n -> Exhaustive . of ( n , n * 2 ) } 3val exhaustive = Exhaustive . of ( 1 , 2 , 3 , 4 , 5 ) 4 val result = exhaustive . map { n -> n * 2 } 5val exhaustive = Exhaustive . of ( 1 , 2 , 3 , 4 , 5 ) 6 val result = exhaustive . filter { n -> n % 2 == 0 } 7val exhaustive = Exhaustive . of ( 1 , 2 , 3 , 4 , 5 ) 8 val result = exhaustive . filterNot { n -> n % 2 == 0 } 9val exhaustive = Exhaustive . of ( 1 , 2 , 3 , 4 , 5 ) 10 val result = exhaustive . take ( 3 ) 11val exhaustive = Exhaustive . of ( 1 , 2 , 3 , 4 , 5 )

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Exhaustive.flatMap

Using AI Code Generation

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1val exhaustive = Exhaustive . of ( "A" , "B" , "C" ) val result = exhaustive . flatMap { Exhaustive . of ( it , it . repeat ( 2 ) ) } result . values . toList () shouldBe listOf ( "A" , "AA" , "B" , "BB" , "C" , "CC" )2val exhaustive = Exhaustive . of ( "A" , "B" , "C" ) val result = exhaustive . filter { it == "A" } result . values . toList () shouldBe listOf ( "A" )3val exhaustive = Exhaustive . of ( "A" , "B" , "C" ) val result = exhaustive . filterNot { it == "A" } result . values . toList () shouldBe listOf ( "B" , "C" )4val exhaustive = Exhaustive . of ( "A" , "B" , "C" ) val result = exhaustive . mapNotNull { if ( it == "A" ) null else it } result . values . toList () shouldBe listOf ( "B" , "C" )5val exhaustive = Exhaustive . of ( "A" , "B" , "C" ) val result = exhaustive . map { it + it } result . values . toList () shouldBe listOf ( "AA" , "BB" , "CC" )6val exhaustive = Exhaustive . of ( "A" , "B" , "C" ) val result = exhaustive . take ( 2 ) result . values . toList () shouldBe listOf ( "A" , "B" )7val exhaustive = Exhaustive . of ( "A" , "B" , "C" ) val result = exhaustive . takeLast

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