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

Best Kotest code snippet using io.kotest.inspectors.Inspectors.Sequence.forAny

matchers.kt

Source:matchers.kt

1@file:Suppress("unused")2package io.kotest.matchers.sequences3import io.kotest.assertions.eq.eq4import io.kotest.assertions.print.print5import io.kotest.matchers.*6private fun <T> Sequence<T>.toString(limit: Int = 10) = this.joinToString(", ", limit = limit)7/*8How should infinite sequences be detected, and how should they be dealt with?9Sequence<T>.count() may run through the whole sequence (sequences from `generateSequence()` do so), so isn't always a safe way to detect infinite sequences.10For now, the documentation should mention that infinite sequences will cause these matchers never to halt.11*/12fun <T> Sequence<T>.shouldContainOnlyNulls() = this should containOnlyNulls()13fun <T> Sequence<T>.shouldNotContainOnlyNulls() = this shouldNot containOnlyNulls()14fun <T> containOnlyNulls() = object : Matcher<Sequence<T>> {15   override fun test(value: Sequence<T>) =16      MatcherResult(17         value.all { it == null },18         { "Sequence should contain only nulls" },19         {20            "Sequence should not contain only nulls"21         })22}23fun <T> Sequence<T>.shouldContainNull() = this should containNull()24fun <T> Sequence<T>.shouldNotContainNull() = this shouldNot containNull()25fun <T> containNull() = object : Matcher<Sequence<T>> {26   override fun test(value: Sequence<T>) =27      MatcherResult(28         value.any { it == null },29         { "Sequence should contain at least one null" },30         {31            "Sequence should not contain any nulls"32         })33}34fun <T> Sequence<T>.shouldHaveElementAt(index: Int, element: T) = this should haveElementAt(index, element)35fun <T> Sequence<T>.shouldNotHaveElementAt(index: Int, element: T) = this shouldNot haveElementAt(index, element)36fun <T, S : Sequence<T>> haveElementAt(index: Int, element: T) = object : Matcher<S> {37   override fun test(value: S) =38      MatcherResult(39         value.elementAt(index) == element,40         { "Sequence should contain $element at index $index" },41         { "Sequence should not contain $element at index $index" }42      )43}44fun <T> Sequence<T>.shouldContainNoNulls() = this should containNoNulls()45fun <T> Sequence<T>.shouldNotContainNoNulls() = this shouldNot containNoNulls()46fun <T> containNoNulls() = object : Matcher<Sequence<T>> {47   override fun test(value: Sequence<T>) =48      MatcherResult(49         value.all { it != null },50         { "Sequence should not contain nulls" },51         { "Sequence should have at least one null" }52      )53}54infix fun <T, C : Sequence<T>> C.shouldContain(t: T) = this should contain(t)55infix fun <T, C : Sequence<T>> C.shouldNotContain(t: T) = this shouldNot contain(t)56fun <T, C : Sequence<T>> contain(t: T) = object : Matcher<C> {57   override fun test(value: C) = MatcherResult(58      value.contains(t),59      { "Sequence should contain element $t" },60      { "Sequence should not contain element $t" }61   )62}63infix fun <T, C : Sequence<T>> C?.shouldNotContainExactly(expected: C) = this shouldNot containExactly(expected)64fun <T, C : Sequence<T>> C?.shouldNotContainExactly(vararg expected: T) = this shouldNot containExactly(*expected)65infix fun <T, C : Sequence<T>> C?.shouldContainExactly(expected: C) = this should containExactly(expected)66fun <T, C : Sequence<T>> C?.shouldContainExactly(vararg expected: T) = this should containExactly(*expected)67fun <T> containExactly(vararg expected: T): Matcher<Sequence<T>?> = containExactly(expected.asSequence())68/** Assert that a sequence contains exactly the given values and nothing else, in order. */69fun <T, C : Sequence<T>> containExactly(expected: C): Matcher<C?> = neverNullMatcher { value ->70   val actualIterator = value.withIndex().iterator()71   val expectedIterator = expected.withIndex().iterator()72   var passed = true73   var failMessage = "Sequence should contain exactly $expected but was $value."74   while (passed && actualIterator.hasNext() && expectedIterator.hasNext()) {75      val actualElement = actualIterator.next()76      val expectedElement = expectedIterator.next()77      if (eq(actualElement.value, expectedElement.value) != null) {78         failMessage += " (expected ${expectedElement.value.print().value} at ${expectedElement.index} but found ${actualElement.value.print().value})"79         passed = false80      }81   }82   if (passed && actualIterator.hasNext()) {83      failMessage += "\nActual sequence has more element than Expected sequence"84      passed = false85   }86   if (passed && expectedIterator.hasNext()) {87      failMessage += "\nExpected sequence has more element than Actual sequence"88      passed = false89   }90   MatcherResult(91      passed,92      { failMessage },93      {94         "Sequence should not be exactly $expected"95      })96}97@Deprecated("use shouldNotContainAllInAnyOrder", ReplaceWith("shouldNotContainAllInAnyOrder"))98infix fun <T, C : Sequence<T>> C?.shouldNotContainExactlyInAnyOrder(expected: C) =99   this shouldNot containAllInAnyOrder(expected)100@Deprecated("use shouldNotContainAllInAnyOrder", ReplaceWith("shouldNotContainAllInAnyOrder"))101fun <T, C : Sequence<T>> C?.shouldNotContainExactlyInAnyOrder(vararg expected: T) =102   this shouldNot containAllInAnyOrder(*expected)103@Deprecated("use shouldContainAllInAnyOrder", ReplaceWith("shouldContainAllInAnyOrder"))104infix fun <T, C : Sequence<T>> C?.shouldContainExactlyInAnyOrder(expected: C) =105   this should containAllInAnyOrder(expected)106@Deprecated("use shouldContainAllInAnyOrder", ReplaceWith("shouldContainAllInAnyOrder"))107fun <T, C : Sequence<T>> C?.shouldContainExactlyInAnyOrder(vararg expected: T) =108   this should containAllInAnyOrder(*expected)109@Deprecated("use containAllInAnyOrder", ReplaceWith("containAllInAnyOrder"))110fun <T> containExactlyInAnyOrder(vararg expected: T): Matcher<Sequence<T>?> =111   containAllInAnyOrder(expected.asSequence())112@Deprecated("use containAllInAnyOrder", ReplaceWith("containAllInAnyOrder"))113   /** Assert that a sequence contains the given values and nothing else, in any order. */114fun <T, C : Sequence<T>> containExactlyInAnyOrder(expected: C): Matcher<C?> = containAllInAnyOrder(expected)115infix fun <T, C : Sequence<T>> C?.shouldNotContainAllInAnyOrder(expected: C) =116   this shouldNot containAllInAnyOrder(expected)117fun <T, C : Sequence<T>> C?.shouldNotContainAllInAnyOrder(vararg expected: T) =118   this shouldNot containAllInAnyOrder(*expected)119infix fun <T, C : Sequence<T>> C?.shouldContainAllInAnyOrder(expected: C) =120   this should containAllInAnyOrder(expected)121fun <T, C : Sequence<T>> C?.shouldContainAllInAnyOrder(vararg expected: T) =122   this should containAllInAnyOrder(*expected)123fun <T> containAllInAnyOrder(vararg expected: T): Matcher<Sequence<T>?> =124   containAllInAnyOrder(expected.asSequence())125/** Assert that a sequence contains all the given values and nothing else, in any order. */126fun <T, C : Sequence<T>> containAllInAnyOrder(expected: C): Matcher<C?> = neverNullMatcher { value ->127   val passed = value.count() == expected.count() && expected.all { value.contains(it) }128   MatcherResult(129      passed,130      { "Sequence should contain the values of $expected in any order, but was $value" },131      { "Sequence should not contain the values of $expected in any order" }132   )133}134infix fun <T : Comparable<T>, C : Sequence<T>> C.shouldHaveUpperBound(t: T) = this should haveUpperBound(t)135fun <T : Comparable<T>, C : Sequence<T>> haveUpperBound(t: T) = object : Matcher<C> {136   override fun test(value: C) = MatcherResult(137      (value.maxOrNull() ?: t) <= t,138      { "Sequence should have upper bound $t" },139      { "Sequence should not have upper bound $t" }140   )141}142infix fun <T : Comparable<T>, C : Sequence<T>> C.shouldHaveLowerBound(t: T) = this should haveLowerBound(t)143fun <T : Comparable<T>, C : Sequence<T>> haveLowerBound(t: T) = object : Matcher<C> {144   override fun test(value: C) = MatcherResult(145      (value.minOrNull() ?: t) >= t,146      { "Sequence should have lower bound $t" },147      { "Sequence should not have lower bound $t" }148   )149}150fun <T> Sequence<T>.shouldBeUnique() = this should beUnique()151fun <T> Sequence<T>.shouldNotBeUnique() = this shouldNot beUnique()152fun <T> beUnique() = object : Matcher<Sequence<T>> {153   override fun test(value: Sequence<T>) = MatcherResult(154      value.toSet().size == value.count(),155      { "Sequence should be Unique" },156      { "Sequence should contain at least one duplicate element" }157   )158}159fun <T> Sequence<T>.shouldContainDuplicates() = this should containDuplicates()160fun <T> Sequence<T>.shouldNotContainDuplicates() = this shouldNot containDuplicates()161fun <T> containDuplicates() = object : Matcher<Sequence<T>> {162   override fun test(value: Sequence<T>) = MatcherResult(163      value.toSet().size < value.count(),164      { "Sequence should contain duplicates" },165      { "Sequence should not contain duplicates" }166   )167}168fun <T : Comparable<T>> Sequence<T>.shouldBeSorted() = this should beSorted()169fun <T : Comparable<T>> Sequence<T>.shouldNotBeSorted() = this shouldNot beSorted()170fun <T : Comparable<T>> beSorted(): Matcher<Sequence<T>> = sorted()171fun <T : Comparable<T>> sorted(): Matcher<Sequence<T>> = object : Matcher<Sequence<T>> {172   override fun test(value: Sequence<T>): MatcherResult {173      @Suppress("UNUSED_DESTRUCTURED_PARAMETER_ENTRY")174      val failure = value.zipWithNext().withIndex().firstOrNull { (i, it) -> it.first > it.second }175      val snippet = value.joinToString(",", limit = 10)176      val elementMessage = when (failure) {177         null -> ""178         else -> ". Element ${failure.value.first} at index ${failure.index} was greater than element ${failure.value.second}"179      }180      return MatcherResult(181         failure == null,182         { "Sequence $snippet should be sorted$elementMessage" },183         { "Sequence $snippet should not be sorted" }184      )185   }186}187infix fun <T> Sequence<T>.shouldBeSortedWith(comparator: Comparator<in T>) = this should beSortedWith(comparator)188infix fun <T> Sequence<T>.shouldBeSortedWith(cmp: (T, T) -> Int) = this should beSortedWith(cmp)189fun <T> beSortedWith(comparator: Comparator<in T>): Matcher<Sequence<T>> = sortedWith(comparator)190fun <T> beSortedWith(cmp: (T, T) -> Int): Matcher<Sequence<T>> = sortedWith(cmp)191fun <T> sortedWith(comparator: Comparator<in T>): Matcher<Sequence<T>> = sortedWith { a, b ->192   comparator.compare(a, b)193}194fun <T> sortedWith(cmp: (T, T) -> Int): Matcher<Sequence<T>> = object : Matcher<Sequence<T>> {195   override fun test(value: Sequence<T>): MatcherResult {196      @Suppress("UNUSED_DESTRUCTURED_PARAMETER_ENTRY")197      val failure = value.zipWithNext().withIndex().firstOrNull { (i, it) -> cmp(it.first, it.second) > 0 }198      val snippet = value.joinToString(",", limit = 10)199      val elementMessage = when (failure) {200         null -> ""201         else -> ". Element ${failure.value.first} at index ${failure.index} shouldn't precede element ${failure.value.second}"202      }203      return MatcherResult(204         failure == null,205         { "Sequence $snippet should be sorted$elementMessage" },206         { "Sequence $snippet should not be sorted" }207      )208   }209}210infix fun <T> Sequence<T>.shouldNotBeSortedWith(comparator: Comparator<in T>) = this shouldNot beSortedWith(comparator)211infix fun <T> Sequence<T>.shouldNotBeSortedWith(cmp: (T, T) -> Int) = this shouldNot beSortedWith(cmp)212infix fun <T> Sequence<T>.shouldHaveSingleElement(t: T) = this should singleElement(t)213infix fun <T> Sequence<T>.shouldNotHaveSingleElement(t: T) = this shouldNot singleElement(t)214fun <T> singleElement(t: T) = object : Matcher<Sequence<T>> {215   override fun test(value: Sequence<T>) = MatcherResult(216      value.count() == 1 && value.first() == t,217      { "Sequence should be a single element of $t but has ${value.count()} elements" },218      { "Sequence should not be a single element of $t" }219   )220}221infix fun <T> Sequence<T>.shouldHaveCount(count: Int) = this should haveCount(count)222infix fun <T> Sequence<T>.shouldNotHaveCount(count: Int) = this shouldNot haveCount(223   count224)225infix fun <T> Sequence<T>.shouldHaveSize(size: Int) = this should haveCount(size)226infix fun <T> Sequence<T>.shouldNotHaveSize(size: Int) = this shouldNot haveCount(size)227//fun <T> haveSize(size: Int) = haveCount(size)228fun <T> haveSize(size: Int): Matcher<Sequence<T>> = haveCount(size)229fun <T> haveCount(count: Int): Matcher<Sequence<T>> = object : Matcher<Sequence<T>> {230   override fun test(value: Sequence<T>) =231      MatcherResult(232         value.count() == count,233         { "Sequence should have count $count but has count ${value.count()}" },234         { "Sequence should not have count $count" }235      )236}237infix fun <T, U> Sequence<T>.shouldBeLargerThan(other: Sequence<U>) = this should beLargerThan(other)238fun <T, U> beLargerThan(other: Sequence<U>) = object : Matcher<Sequence<T>> {239   override fun test(value: Sequence<T>) = MatcherResult(240      value.count() > other.count(),241      { "Sequence of count ${value.count()} should be larger than sequence of count ${other.count()}" },242      { "Sequence of count ${value.count()} should not be larger than sequence of count ${other.count()}" }243   )244}245infix fun <T, U> Sequence<T>.shouldBeSmallerThan(other: Sequence<U>) = this should beSmallerThan(other)246fun <T, U> beSmallerThan(other: Sequence<U>) = object : Matcher<Sequence<T>> {247   override fun test(value: Sequence<T>) = MatcherResult(248      value.count() < other.count(),249      { "Sequence of count ${value.count()} should be smaller than sequence of count ${other.count()}" },250      { "Sequence of count ${value.count()} should not be smaller than sequence of count ${other.count()}" }251   )252}253infix fun <T, U> Sequence<T>.shouldBeSameCountAs(other: Sequence<U>) = this should beSameCountAs(254   other255)256fun <T, U> beSameCountAs(other: Sequence<U>) = object : Matcher<Sequence<T>> {257   override fun test(value: Sequence<T>) = MatcherResult(258      value.count() == other.count(),259      { "Sequence of count ${value.count()} should be the same count as sequence of count ${other.count()}" },260      { "Sequence of count ${value.count()} should not be the same count as sequence of count ${other.count()}" }261   )262}263infix fun <T, U> Sequence<T>.shouldBeSameSizeAs(other: Sequence<U>) = this.shouldBeSameCountAs(other)264infix fun <T> Sequence<T>.shouldHaveAtLeastCount(n: Int) = this shouldHave atLeastCount(n)265fun <T> atLeastCount(n: Int) = object : Matcher<Sequence<T>> {266   override fun test(value: Sequence<T>) = MatcherResult(267      value.count() >= n,268      { "Sequence should contain at least $n elements" },269      { "Sequence should contain less than $n elements" }270   )271}272infix fun <T> Sequence<T>.shouldHaveAtLeastSize(n: Int) = this.shouldHaveAtLeastCount(n)273infix fun <T> Sequence<T>.shouldHaveAtMostCount(n: Int) = this shouldHave atMostCount(n)274fun <T> atMostCount(n: Int) = object : Matcher<Sequence<T>> {275   override fun test(value: Sequence<T>) = MatcherResult(276      value.count() <= n,277      { "Sequence should contain at most $n elements" },278      { "Sequence should contain more than $n elements" }279   )280}281infix fun <T> Sequence<T>.shouldHaveAtMostSize(n: Int) = this shouldHave atMostCount(n)282@Deprecated(283   "Use `forAny` inspection instead",284   ReplaceWith(285      "forAny { p() shouldBe true }",286      "io.kotest.matchers.shouldBe",287      "io.kotest.inspectors.forAny",288   )289)290infix fun <T> Sequence<T>.shouldExist(p: (T) -> Boolean) = this should exist(p)291fun <T> exist(p: (T) -> Boolean) = object : Matcher<Sequence<T>> {292   override fun test(value: Sequence<T>) = MatcherResult(293      value.any { p(it) },294      { "Sequence should contain an element that matches the predicate $p" },295      { "Sequence should not contain an element that matches the predicate $p" }296   )297}298fun <T : Comparable<T>> Sequence<T>.shouldContainInOrder(vararg ts: T) =299   this should containsInOrder(ts.asSequence())300infix fun <T : Comparable<T>> Sequence<T>.shouldContainInOrder(expected: Sequence<T>) =301   this should containsInOrder(expected)302fun <T : Comparable<T>> Sequence<T>.shouldNotContainInOrder(expected: Sequence<T>) =303   this shouldNot containsInOrder(expected)304/** Assert that a sequence contains a given subsequence, possibly with values in between. */305fun <T> containsInOrder(subsequence: Sequence<T>): Matcher<Sequence<T>?> = neverNullMatcher { actual ->306   val subsequenceCount = subsequence.count()307   require(subsequenceCount > 0) { "expected values must not be empty" }308   var subsequenceIndex = 0309   val actualIterator = actual.iterator()310   while (actualIterator.hasNext() && subsequenceIndex < subsequenceCount) {311      if (actualIterator.next() == subsequence.elementAt(subsequenceIndex)) subsequenceIndex += 1312   }313   MatcherResult(314      subsequenceIndex == subsequence.count(),315      { "[$actual] did not contain the elements [$subsequence] in order" },316      { "[$actual] should not contain the elements [$subsequence] in order" }317   )318}319fun <T> Sequence<T>.shouldBeEmpty() = this should beEmpty()320fun <T> Sequence<T>.shouldNotBeEmpty() = this shouldNot beEmpty()321fun <T> beEmpty(): Matcher<Sequence<T>> = object : Matcher<Sequence<T>> {322   override fun test(value: Sequence<T>): MatcherResult = MatcherResult(323      value.count() == 0,324      { "Sequence should be empty" },325      { "Sequence should not be empty" }326   )327}328fun <T> Sequence<T>.shouldContainAll(vararg ts: T) = this should containAll(ts.toList())329infix fun <T> Sequence<T>.shouldContainAll(ts: Collection<T>) = this should containAll(ts.toList())330infix fun <T> Sequence<T>.shouldContainAll(ts: Sequence<T>) = this should containAll(ts)331fun <T> Sequence<T>.shouldNotContainAll(vararg ts: T) = this shouldNot containAll(ts.asList())332infix fun <T> Sequence<T>.shouldNotContainAll(ts: Collection<T>) = this shouldNot containAll(ts.toList())333infix fun <T> Sequence<T>.shouldNotContainAll(ts: Sequence<T>) = this shouldNot containAll(ts)334fun <T> containAll(ts: Sequence<T>): Matcher<Sequence<T>> = containAll(ts.toList())335fun <T> containAll(ts: List<T>): Matcher<Sequence<T>> = object : Matcher<Sequence<T>> {336   override fun test(value: Sequence<T>): MatcherResult {337      val remaining = ts.toMutableSet()338      val iter = value.iterator()339      while (remaining.isNotEmpty() && iter.hasNext()) {340         remaining.remove(iter.next())341      }342      return MatcherResult(343         remaining.isEmpty(),344         { "Sequence should contain all of ${value.joinToString(",", limit = 10)}" },345         { "Sequence should not contain all of ${value.joinToString(",", limit = 10)}" }346      )347   }348}...

InspectorAliasTest.kt

Source:InspectorAliasTest.kt

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})...

InspectorsTest.kt

Source:InspectorsTest.kt

1package com.sksamuel.kotest2import io.kotest.assertions.throwables.shouldThrow3import io.kotest.core.spec.style.WordSpec4import io.kotest.inspectors.forAny5import io.kotest.inspectors.forExactly6import io.kotest.inspectors.forNone7import io.kotest.inspectors.forOne8import io.kotest.inspectors.forSome9import io.kotest.matchers.comparables.beGreaterThan10import io.kotest.matchers.comparables.beLessThan11import io.kotest.matchers.should12import io.kotest.matchers.shouldBe13import io.kotest.matchers.shouldNotBe14class InspectorsTest : WordSpec() {15   private val list = listOf(1, 2, 3, 4, 5)16   private val array = arrayOf(1, 2, 3, 4, 5)17   private val charSequence = "charSequence"18   init {19      "forNone" should {20         "pass if no elements pass fn test for a list" {21            list.forNone {22               it shouldBe 1023            }24         }25         "pass if no elements pass fn test for a char sequence" {26            charSequence.forNone {27               it shouldBe 'x'28            }29         }30         "pass if no elements pass fn test for an array" {31            array.forNone {32               it shouldBe 1033            }34         }35         "fail if one elements passes fn test" {36            shouldThrow<AssertionError> {37               list.forNone {38                  it shouldBe 439               }40            }.message shouldBe """1 elements passed but expected 041The following elements passed:42443The following elements failed:441 => expected:<4> but was:<1>452 => expected:<4> but was:<2>463 => expected:<4> but was:<3>475 => expected:<4> but was:<5>"""48         }49         "fail if all elements pass fn test" {50            shouldThrow<AssertionError> {51               list.forNone {52                  it should beGreaterThan(0)53               }54            }.message shouldBe """5 elements passed but expected 055The following elements passed:56157258359460561The following elements failed:62--none--"""63         }64      }65      "forSome" should {66         "pass if one elements pass test"  {67            list.forSome {68               it shouldBe 369            }70         }71         "pass if size-1 elements pass test"  {72            list.forSome {73               it should beGreaterThan(1)74            }75         }76         "pass if two elements pass test for a char sequence" {77            charSequence.forSome {78               it shouldBe 'c'79            }80         }81         "fail if no elements pass test"  {82            shouldThrow<AssertionError> {83               array.forSome {84                  it should beLessThan(0)85               }86            }.message shouldBe """No elements passed but expected at least one87The following elements passed:88--none--89The following elements failed:901 => 1 should be < 0912 => 2 should be < 0923 => 3 should be < 0934 => 4 should be < 0945 => 5 should be < 0"""95         }96         "fail if all elements pass test"  {97            shouldThrow<AssertionError> {98               list.forSome {99                  it should beGreaterThan(0)100               }101            }.message shouldBe """All elements passed but expected < 5102The following elements passed:10311042105310641075108The following elements failed:109--none--"""110         }111      }112      "forOne" should {113         "pass if one elements pass test"  {114            list.forOne {115               it shouldBe 3116            }117         }118         "fail if all elements pass test for a char sequence" {119            shouldThrow<AssertionError> {120               charSequence.forOne { t ->121                  t shouldNotBe 'X'122               }123            }.message shouldBe """12 elements passed but expected 1124The following elements passed:125c126h127a128r129S130e131q132u133e134n135... and 2 more passed elements136The following elements failed:137--none--"""138         }139         "fail if > 1 elements pass test"  {140            shouldThrow<AssertionError> {141               list.forOne { t ->142                  t should beGreaterThan(2)143               }144            }.message shouldBe """3 elements passed but expected 1145The following elements passed:146314741485149The following elements failed:1501 => 1 should be > 21512 => 2 should be > 2"""152         }153         "fail if no elements pass test"  {154            shouldThrow<AssertionError> {155               array.forOne { t ->156                  t shouldBe 22157               }158            }.message shouldBe """0 elements passed but expected 1159The following elements passed:160--none--161The following elements failed:1621 => expected:<22> but was:<1>1632 => expected:<22> but was:<2>1643 => expected:<22> but was:<3>1654 => expected:<22> but was:<4>1665 => expected:<22> but was:<5>"""167         }168      }169      "forAny" should {170         "pass if one elements pass test"  {171            list.forAny { t ->172               t shouldBe 3173            }174         }175         "pass if at least elements pass test"  {176            list.forAny { t ->177               t should beGreaterThan(2)178            }179         }180         "pass if all elements pass test for a char sequence" {181            charSequence.forAny {182               it shouldNotBe 'X'183            }184         }185         "fail if no elements pass test"  {186            shouldThrow<AssertionError> {187               array.forAny { t ->188                  t shouldBe 6189               }190            }.message shouldBe """0 elements passed but expected at least 1191The following elements passed:192--none--193The following elements failed:1941 => expected:<6> but was:<1>1952 => expected:<6> but was:<2>1963 => expected:<6> but was:<3>1974 => expected:<6> but was:<4>1985 => expected:<6> but was:<5>"""199         }200      }201      "forExactly" should {202         "pass if exactly k elements pass"  {203            list.forExactly(2) { t ->204               t should beLessThan(3)205            }206         }207         "pass if exactly k elements pass for a char sequence" {208            charSequence.forExactly(1) {209               it shouldBe 'h'210            }211         }212         "fail if more elements pass test"  {213            shouldThrow<AssertionError> {214               list.forExactly(2) { t ->215                  t should beGreaterThan(2)216               }217            }.message shouldBe """3 elements passed but expected 2218The following elements passed:219322042215222The following elements failed:2231 => 1 should be > 22242 => 2 should be > 2"""225         }226         "fail if less elements pass test"  {227            shouldThrow<AssertionError> {228               array.forExactly(2) { t ->229                  t should beLessThan(2)230               }231            }.message shouldBe """1 elements passed but expected 2232The following elements passed:2331234The following elements failed:2352 => 2 should be < 22363 => 3 should be < 22374 => 4 should be < 22385 => 5 should be < 2"""239         }240         "fail if no elements pass test"  {241            shouldThrow<AssertionError> {242               list.forExactly(2) { t ->243                  t shouldBe 33244               }245            }.message shouldBe """0 elements passed but expected 2246The following elements passed:247--none--248The following elements failed:2491 => expected:<33> but was:<1>2502 => expected:<33> but was:<2>2513 => expected:<33> but was:<3>2524 => expected:<33> but was:<4>2535 => expected:<33> but was:<5>"""254         }255      }256   }257}...

Inspectors.kt

Source:Inspectors.kt

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}...

InspectorAliases.kt

Source:InspectorAliases.kt

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)...

Sequence.forAny

Using AI Code Generation

1val list = listOf ( 1 , 2 , 3 , 4 , 5 , 6 )2Sequence . forAny ( list ) { it should beGreaterThan ( 1 ) }3val list = listOf ( 1 , 2 , 3 , 4 , 5 , 6 )4Sequence . forAll ( list ) { it should beGreaterThan ( 1 ) }5val list = listOf ( 1 , 2 , 3 , 4 , 5 , 6 )6Sequence . forNone ( list ) { it should beGreaterThan ( 1 ) }7val list = listOf ( 1 , 2 , 3 , 4 , 5 , 6 )8Sequence . forOne ( list ) { it should beGreaterThan ( 1 ) }9val list = listOf ( 1 , 2 , 3 , 4 , 5 , 6 )10Sequence . forNone ( list ) { it should beGreaterThan ( 1 ) }11val list = listOf ( 1 , 2 , 3 , 4 , 5 , 6 )12Sequence . forExactly ( list , 3 ) { it should beGreaterThan ( 1 ) }13val list = listOf ( 1 , 2 , 3 , 4 , 5 , 6 )14Sequence . forAtLeast ( list , 3 ) { it should beGreaterThan ( 1 ) }15val list = listOf ( 1 , 2 , 3 , 4 , 5 , 6 )16Sequence . forAtMost ( list , 3 ) { it should beGreaterThan ( 1 ) }

Sequence.forAny

Using AI Code Generation

1val list = listOf(1, 2, 3, 4, 5, 6, 7, 8, 9)2Sequence.forAny(list) { it > 5 } shouldBe true3Sequence.forAny(list) { it > 10 } shouldBe false4val list = listOf(1, 2, 3, 4, 5, 6, 7, 8, 9)5Sequence.forAll(list) { it > 5 } shouldBe false6Sequence.forAll(list) { it > 0 } shouldBe true7Sequence.forAll(list) { it > 10 } shouldBe false8val list = listOf(1, 2, 3, 4, 5, 6, 7, 8, 9)9Sequence.forNone(list) { it > 10 } shouldBe true10Sequence.forNone(list) { it > 5 } shouldBe false11val list = listOf(1, 2, 3, 4, 5, 6, 7, 8, 9)12Sequence.forOne(list) { it > 5 } shouldBe true13Sequence.forOne(list) { it > 10 } shouldBe false14val list = listOf(1, 2, 3, 4, 5, 6, 7, 8, 9)15Sequence.forExactly(2, list) { it > 5 } shouldBe true16Sequence.forExactly(3, list) { it > 5 } shouldBe false

Sequence.forAny

Using AI Code Generation

1@DisplayName("Test forAny method of Inspectors class")2class ForAnyTest {3    fun `test forAny method of Inspectors class`() {4        val list = listOf(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)5        list.forAny {6        }7    }8}

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