# How to use Exhaustive.Companion.cartesian method of io.kotest.property.exhaustive.cartesian class

Best Kotest code snippet using io.kotest.property.exhaustive.cartesian.Exhaustive.Companion.cartesian

cartesian.kt

Source:cartesian.kt

`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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