How to use Sequence.forAtLeast method of io.kotest.inspectors.Inspectors class

1package com.sksamuel.kotest2import io.kotest.assertions.throwables.shouldThrowAny3import io.kotest.core.spec.style.FunSpec4import io.kotest.inspectors.shouldForAll5import io.kotest.inspectors.shouldForAny6import io.kotest.inspectors.shouldForAtLeast7import io.kotest.inspectors.shouldForAtLeastOne8import io.kotest.inspectors.shouldForAtMost9import io.kotest.inspectors.shouldForAtMostOne10import io.kotest.inspectors.shouldForExactly11import io.kotest.inspectors.shouldForNone12import io.kotest.inspectors.shouldForOne13import io.kotest.inspectors.shouldForSome14import io.kotest.matchers.comparables.shouldBeGreaterThan15import io.kotest.matchers.ints.shouldBeLessThan16import io.kotest.matchers.shouldBe17class InspectorAliasTest : FunSpec({18   val array = arrayOf(1, 2, 3)19   val list = listOf(1, 2, 3)20   val sequence = sequenceOf(1, 2, 3)21   context("forAll") {22      fun block(x: Int) = x shouldBeGreaterThan 023      test("array") {24         array.shouldForAll {25            it shouldBeLessThan 426         }27         shouldThrowAny {28            array.shouldForAll {29               it shouldBeLessThan 330            }31         }32      }33      test("list") {34         list.shouldForAll(::block)35         shouldThrowAny {36            list.shouldForAll {37               it shouldBeLessThan 338            }39         }40      }41      test("sequence") {42         sequence.shouldForAll(::block)43         shouldThrowAny {44            sequence.shouldForAll {45               it shouldBeLessThan 346            }47         }48      }49   }50   context("forOne") {51      fun block(x: Int) = x shouldBe 252      test("array") {53         array.shouldForOne(::block)54         shouldThrowAny {55            array.shouldForOne {56               it shouldBeLessThan 157            }58         }59      }60      test("list") {61         list.shouldForOne(::block)62         shouldThrowAny {63            list.shouldForOne {64               it shouldBeLessThan 165            }66         }67      }68      test("sequence") {69         sequence.shouldForOne(::block)70         shouldThrowAny {71            sequence.shouldForOne {72               it shouldBeLessThan 173            }74         }75      }76   }77   context("forExactly") {78      fun block(x: Int) = x shouldBeGreaterThan 179      val n = 280      test("array") {81         array.shouldForExactly(n, ::block)82         shouldThrowAny {83            array.shouldForExactly(n) {84               it shouldBeLessThan 185            }86         }87      }88      test("list") {89         list.shouldForExactly(n, ::block)90         shouldThrowAny {91            list.shouldForExactly(n) {92               it shouldBeLessThan 193            }94         }95      }96      test("sequence") {97         sequence.shouldForExactly(n, ::block)98         shouldThrowAny {99            sequence.shouldForExactly(n) {100               it shouldBeLessThan 1101            }102         }103      }104   }105   context("forSome") {106      fun block(x: Int) = x shouldBeGreaterThan 2107      test("array") {108         array.shouldForSome(::block)109         shouldThrowAny {110            array.shouldForSome {111               it shouldBeLessThan 1112            }113         }114      }115      test("list") {116         list.shouldForSome(::block)117         shouldThrowAny {118            list.shouldForSome {119               it shouldBeLessThan 1120            }121         }122      }123      test("sequence") {124         sequence.shouldForSome(::block)125         shouldThrowAny {126            sequence.shouldForSome {127               it shouldBeLessThan 1128            }129         }130      }131   }132   context("forAny") {133      fun block(x: Int) = x shouldBeGreaterThan 0134      test("array") {135         array.shouldForAny(::block)136         shouldThrowAny {137            array.shouldForAny {138               it shouldBeLessThan 1139            }140         }141      }142      test("list") {143         list.shouldForAny(::block)144         shouldThrowAny {145            list.shouldForAny {146               it shouldBeLessThan 1147            }148         }149      }150      test("sequence") {151         sequence.shouldForAny(::block)152         shouldThrowAny {153            sequence.shouldForAny {154               it shouldBeLessThan 1155            }156         }157      }158   }159   context("forAtLeast") {160      fun block(x: Int) = x shouldBeGreaterThan 0161      val n = 3162      test("array") {163         array.shouldForAtLeast(n, ::block)164         shouldThrowAny {165            array.shouldForAtLeast(n) {166               it shouldBeLessThan 3167            }168         }169      }170      test("list") {171         list.shouldForAtLeast(n, ::block)172         shouldThrowAny {173            list.shouldForAtLeast(n) {174               it shouldBeLessThan 3175            }176         }177      }178      test("sequence") {179         sequence.shouldForAtLeast(n, ::block)180         shouldThrowAny {181            sequence.shouldForAtLeast(n) {182               it shouldBeLessThan 3183            }184         }185      }186   }187   context("forAtLeastOne") {188      fun block(x: Int) = x shouldBeGreaterThan 0189      test("array") {190         array.shouldForAtLeastOne(::block)191         shouldThrowAny {192            array.shouldForAtLeastOne {193               it shouldBeLessThan 1194            }195         }196      }197      test("list") {198         list.shouldForAtLeastOne(::block)199         shouldThrowAny {200            list.shouldForAtLeastOne {201               it shouldBeLessThan 1202            }203         }204      }205      test("sequence") {206         sequence.shouldForAtLeastOne(::block)207         shouldThrowAny {208            sequence.shouldForAtLeastOne {209               it shouldBeLessThan 1210            }211         }212      }213   }214   context("forAtMost") {215      fun block(x: Int) = x shouldBeGreaterThan 0216      test("array") {217         val arr = arrayOf(0, 0, 1)218         arr.shouldForAtMost(1, ::block)219         shouldThrowAny {220            arr.shouldForAtMost(1) {221               it shouldBeLessThan 3222            }223         }224      }225      test("list") {226         val l = listOf(0, 1, 1)227         l.shouldForAtMost(2, ::block)228         shouldThrowAny {229            l.shouldForAtMost(2) {230               it shouldBeLessThan 3231            }232         }233      }234      test("sequence") {235         sequence.shouldForAtMost(3, ::block)236         shouldThrowAny {237            sequence.shouldForAtMost(2) {238               it shouldBeLessThan 4239            }240         }241      }242   }243   context("forNone") {244      fun block(x: Int) = x shouldBeLessThan 1245      test("array") {246         array.shouldForNone(::block)247         shouldThrowAny {248            array.shouldForNone {249               it shouldBeLessThan 4250            }251         }252      }253      test("list") {254         list.shouldForNone(::block)255         shouldThrowAny {256            list.shouldForNone {257               it shouldBeLessThan 4258            }259         }260      }261      test("sequence") {262         sequence.shouldForNone(::block)263         shouldThrowAny {264            sequence.shouldForNone {265               it shouldBeLessThan 4266            }267         }268      }269   }270   context("forAtMostOne") {271      fun block(x: Int) = x shouldBe 1272      test("array") {273         array.shouldForAtMostOne(::block)274      }275      test("list") {276         list.shouldForAtMostOne(::block)277      }278      test("sequence") {279         sequence.shouldForAtMostOne(::block)280      }281   }282})...

1package com.github.shwaka.kotest.inspectors2import io.kotest.inspectors.ElementPass3import io.kotest.inspectors.runTests4fun <T> Sequence<T>.forAll(fn: (T) -> Unit) = toList().forAll(fn)5fun <T> Array<T>.forAll(fn: (T) -> Unit) = asList().forAll(fn)6fun <T> Collection<T>.forAll(fn: (T) -> Unit) {7    val results = runTests(this, fn)8    val passed = results.filterIsInstance<ElementPass<T>>()9    if (passed.size < this.size) {10        val msg = "${passed.size} elements passed but expected ${this.size}"11        buildAssertionError(msg, results)12    }13}14fun <T> Sequence<T>.forOne(fn: (T) -> Unit) = toList().forOne(fn)15fun <T> Array<T>.forOne(fn: (T) -> Unit) = asList().forOne(fn)16fun <T> Collection<T>.forOne(fn: (T) -> Unit) = forExactly(1, fn)17fun <T> Sequence<T>.forExactly(k: Int, fn: (T) -> Unit) = toList().forExactly(k, fn)18fun <T> Array<T>.forExactly(k: Int, fn: (T) -> Unit) = toList().forExactly(k, fn)19fun <T> Collection<T>.forExactly(k: Int, fn: (T) -> Unit) {20    val results = runTests(this, fn)21    val passed = results.filterIsInstance<ElementPass<T>>()22    if (passed.size != k) {23        val msg = "${passed.size} elements passed but expected $k"24        buildAssertionError(msg, results)25    }26}27fun <T> Sequence<T>.forSome(fn: (T) -> Unit) = toList().forSome(fn)28fun <T> Array<T>.forSome(fn: (T) -> Unit) = toList().forSome(fn)29fun <T> Collection<T>.forSome(fn: (T) -> Unit) {30    val results = runTests(this, fn)31    val passed = results.filterIsInstance<ElementPass<T>>()32    if (passed.isEmpty()) {33        buildAssertionError("No elements passed but expected at least one", results)34    } else if (passed.size == size) {35        buildAssertionError("All elements passed but expected < $size", results)36    }37}38fun <T> Sequence<T>.forAny(fn: (T) -> Unit) = toList().forAny(fn)39fun <T> Array<T>.forAny(fn: (T) -> Unit) = toList().forAny(fn)40fun <T> Collection<T>.forAny(fn: (T) -> Unit) = forAtLeastOne(fn)41fun <T> Sequence<T>.forAtLeastOne(fn: (T) -> Unit) = toList().forAtLeastOne(fn)42fun <T> Array<T>.forAtLeastOne(fn: (T) -> Unit) = toList().forAtLeastOne(fn)43fun <T> Collection<T>.forAtLeastOne(f: (T) -> Unit) = forAtLeast(1, f)44fun <T> Sequence<T>.forAtLeast(k: Int, fn: (T) -> Unit) = toList().forAtLeast(k, fn)45fun <T> Array<T>.forAtLeast(k: Int, fn: (T) -> Unit) = toList().forAtLeast(k, fn)46fun <T> Collection<T>.forAtLeast(k: Int, fn: (T) -> Unit) {47    val results = runTests(this, fn)48    val passed = results.filterIsInstance<ElementPass<T>>()49    if (passed.size < k) {50        val msg = "${passed.size} elements passed but expected at least $k"51        buildAssertionError(msg, results)52    }53}54fun <T> Sequence<T>.forAtMostOne(fn: (T) -> Unit) = toList().forAtMostOne(fn)55fun <T> Array<T>.forAtMostOne(fn: (T) -> Unit) = toList().forAtMostOne(fn)56fun <T> Collection<T>.forAtMostOne(fn: (T) -> Unit) = forAtMost(1, fn)57fun <T> Sequence<T>.forAtMost(k: Int, fn: (T) -> Unit) = toList().forAtMost(k, fn)58fun <T> Array<T>.forAtMost(k: Int, fn: (T) -> Unit) = toList().forAtMost(k, fn)59fun <T> Collection<T>.forAtMost(k: Int, fn: (T) -> Unit) {60    val results = runTests(this, fn)61    val passed = results.filterIsInstance<ElementPass<T>>()62    if (passed.size > k) {63        val msg = "${passed.size} elements passed but expected at most $k"64        buildAssertionError(msg, results)65    }66}67fun <T> Sequence<T>.forNone(fn: (T) -> Unit) = toList().forNone(fn)68fun <T> Array<T>.forNone(fn: (T) -> Unit) = toList().forNone(fn)69fun <T> Collection<T>.forNone(f: (T) -> Unit) {70    val results = runTests(this, f)71    val passed = results.filterIsInstance<ElementPass<T>>()72    if (passed.isNotEmpty()) {73        val msg = "${passed.size} elements passed but expected ${0}"74        buildAssertionError(msg, results)75    }76}...

1package io.kotest.inspectors2/** Alias for [Sequence.forAll] */3fun <T> Sequence<T>.shouldForAll(fn: (T) -> Unit) = forAll(fn)4/** Alias for [Array.forAll] */5fun <T> Array<T>.shouldForAll(fn: (T) -> Unit) = forAll(fn)6/** Alias for [Collection.forAll] */7fun <T> Collection<T>.shouldForAll(fn: (T) -> Unit) = forAll(fn)8/** Alias for [Sequence.forOne] */9fun <T> Sequence<T>.shouldForOne(fn: (T) -> Unit) = forOne(fn)10/** Alias for [Array.forOne] */11fun <T> Array<T>.shouldForOne(fn: (T) -> Unit) = forOne(fn)12/** Alias for [Collection.forOne] */13fun <T> Collection<T>.shouldForOne(fn: (T) -> Unit) = forOne(fn)14/** Alias for [Sequence.forExactly] */15fun <T> Sequence<T>.shouldForExactly(k: Int, fn: (T) -> Unit) = forExactly(k, fn)16/** Alias for [Array.forExactly] */17fun <T> Array<T>.shouldForExactly(k: Int, fn: (T) -> Unit) = forExactly(k, fn)18/** Alias for [Collection.forExactly] */19fun <T> Collection<T>.shouldForExactly(k: Int, fn: (T) -> Unit) = forExactly(k, fn)20/** Alias for [Sequence.forSome] */21fun <T> Sequence<T>.shouldForSome(fn: (T) -> Unit) = forSome(fn)22/** Alias for [Array.forSome] */23fun <T> Array<T>.shouldForSome(fn: (T) -> Unit) = forSome(fn)24/** Alias for [Collection.forSome] */25fun <T> Collection<T>.shouldForSome(fn: (T) -> Unit) = forSome(fn)26/** Alias for [Sequence.forAny] */27fun <T> Sequence<T>.shouldForAny(fn: (T) -> Unit) = forAny(fn)28/** Alias for [Array.forAny] */29fun <T> Array<T>.shouldForAny(fn: (T) -> Unit) = forAny(fn)30/** Alias for [Collection.forAny] */31fun <T> Collection<T>.shouldForAny(fn: (T) -> Unit) = forAny(fn)32/** Alias for [Sequence.forAtLeastOne] */33fun <T> Sequence<T>.shouldForAtLeastOne(fn: (T) -> Unit) = forAtLeastOne(fn)34/** Alias for [Array.forAtLeastOne] */35fun <T> Array<T>.shouldForAtLeastOne(fn: (T) -> Unit) = forAtLeastOne(fn)36/** Alias for [Collection.forAtLeastOne] */37fun <T> Collection<T>.shouldForAtLeastOne(fn: (T) -> Unit) = forAtLeastOne(fn)38/** Alias for [Sequence.forAtLeast] */39fun <T> Sequence<T>.shouldForAtLeast(k: Int, fn: (T) -> Unit) = forAtLeast(k, fn)40/** Alias for [Array.forAtLeast] */41fun <T> Array<T>.shouldForAtLeast(k: Int, fn: (T) -> Unit) = forAtLeast(k, fn)42/** Alias for [Collection.forAtLeast] */43fun <T> Collection<T>.shouldForAtLeast(k: Int, fn: (T) -> Unit) = forAtLeast(k, fn)44/** Alias for [Sequence.forAtMostOne] */45fun <T> Sequence<T>.shouldForAtMostOne(fn: (T) -> Unit) = forAtMostOne(fn)46/** Alias for [Array.forAtMostOne] */47fun <T> Array<T>.shouldForAtMostOne(fn: (T) -> Unit) = forAtMostOne(fn)48/** Alias for [Collection.forAtMostOne] */49fun <T> Collection<T>.shouldForAtMostOne(fn: (T) -> Unit) = forAtMostOne(fn)50/** Alias for [Sequence.forAtMost] */51fun <T> Sequence<T>.shouldForAtMost(k: Int, fn: (T) -> Unit) = forAtMost(k, fn)52/** Alias for [Array.forAtMost] */53fun <T> Array<T>.shouldForAtMost(k: Int, fn: (T) -> Unit) = forAtMost(k, fn)54/** Alias for [Collection.forAtMost] */55fun <T> Collection<T>.shouldForAtMost(k: Int, fn: (T) -> Unit) = forAtMost(k, fn)56/** Alias for [Sequence.forNone] */57fun <T> Sequence<T>.shouldForNone(fn: (T) -> Unit) = forNone(fn)58/** Alias for [Array.forNone] */59fun <T> Array<T>.shouldForNone(fn: (T) -> Unit) = forNone(fn)60/** Alias for [Collection.forNone] */61fun <T> Collection<T>.shouldForNone(fn: (T) -> Unit) = forNone(fn)...

1val  numbers  =  listOf ( 1 ,  2 ,  3 ,  4 ,  5 )2forAtLeast ( 2 ,  numbers ) {  it  should  beEven () }3val  numbers  =  listOf ( 1 ,  2 ,  3 ,  4 ,  5 )4forAtMost ( 2 ,  numbers ) {  it  should  beOdd () }5val  numbers  =  listOf ( 1 ,  2 ,  3 ,  4 ,  5 )6forExactly ( 2 ,  numbers ) {  it  should  beOdd () }7val  numbers  =  listOf ( 1 ,  2 ,  3 ,  4 ,  5 )8forNone ( numbers ) {  it  should  beOdd () }9val  numbers  =  listOf ( 1 ,  2 ,  3 ,  4 ,  5 )10forOne ( numbers ) {  it  should  beOdd () }11val  numbers  =  listOf ( 1 ,  2 ,  3 ,  4 ,  5 )12forSome ( numbers ) {  it  should  beOdd () }13val  numbers  =  listOf ( 1 ,  2 ,  3 ,  4 ,  5 )14forExactlyOne ( numbers ) {  it  should  beOdd () }15val  numbers  =  listOf ( 1 ,  2 ,  3 ,  4 ,  5 )16forAtLeastOne ( numbers ) {  it  should  beOdd () }

1val names = listOf("John", "Jane", "Joe")2"Names should contain at least one character" {3names.forAtLeast(1) { it should haveAtLeast(1, 'a') }4}5val names = listOf("John", "Jane", "Joe")6"Names should contain exactly one character" {7names.forExactly(1) { it should haveAtLeast(1, 'a') }8}9val names = listOf("John", "Jane", "Joe")10"Names should contain no character" {11names.forNone { it should haveAtLeast(1, 'a') }12}13val names = listOf("John", "Jane", "Joe")14"Names should contain one character" {15names.forOne { it should haveAtLeast(1, 'a') }16}17val names = listOf("John", "Jane", "Joe")18"Names should contain some character" {19names.forSome { it should haveAtLeast(1, 'a') }20}21val names = listOf("John", "Jane", "Joe")22"Names should contain at most one character" {23names.forAtMost(1) { it should haveAtLeast(1, 'a') }24}25val names = listOf("John", "Jane", "Joe")26"Names should contain at most one character" {27names.forAtMostOne { it should haveAtLeast(1, 'a') }28}29val names = listOf("John", "Jane", "Joe")30"Names should contain exactly one character" {31names.forAll { it should haveAtLeast(1, 'a') }32}33val names = listOf("John", "Jane",