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How to use monotonicallyDecreasingWith method of io.kotest.matchers.collections.decreasing class

Best Kotest code snippet using io.kotest.matchers.collections.decreasing.monotonicallyDecreasingWith

CollectionMatchersTest.kt

Source:CollectionMatchersTest.kt

...22import io.kotest.matchers.collections.haveSize23import io.kotest.matchers.collections.matchEach24import io.kotest.matchers.collections.matchInOrderSubset25import io.kotest.matchers.collections.monotonicallyDecreasing26import io.kotest.matchers.collections.monotonicallyDecreasingWith27import io.kotest.matchers.collections.monotonicallyIncreasing28import io.kotest.matchers.collections.monotonicallyIncreasingWith29import io.kotest.matchers.collections.shouldBeIn30import io.kotest.matchers.collections.shouldBeLargerThan31import io.kotest.matchers.collections.shouldBeMonotonicallyDecreasing32import io.kotest.matchers.collections.shouldBeMonotonicallyDecreasingWith33import io.kotest.matchers.collections.shouldBeMonotonicallyIncreasing34import io.kotest.matchers.collections.shouldBeMonotonicallyIncreasingWith35import io.kotest.matchers.collections.shouldBeSameSizeAs36import io.kotest.matchers.collections.shouldBeSingleton37import io.kotest.matchers.collections.shouldBeSmallerThan38import io.kotest.matchers.collections.shouldBeSorted39import io.kotest.matchers.collections.shouldBeSortedBy40import io.kotest.matchers.collections.shouldBeSortedWith41import io.kotest.matchers.collections.shouldBeStrictlyDecreasing42import io.kotest.matchers.collections.shouldBeStrictlyDecreasingWith43import io.kotest.matchers.collections.shouldBeStrictlyIncreasing44import io.kotest.matchers.collections.shouldBeStrictlyIncreasingWith45import io.kotest.matchers.collections.shouldContainAnyOf46import io.kotest.matchers.collections.shouldContainDuplicates47import io.kotest.matchers.collections.shouldContainNoNulls48import io.kotest.matchers.collections.shouldContainNull49import io.kotest.matchers.collections.shouldContainOnlyNulls50import io.kotest.matchers.collections.shouldExist51import io.kotest.matchers.collections.shouldHaveAtLeastSize52import io.kotest.matchers.collections.shouldHaveAtMostSize53import io.kotest.matchers.collections.shouldHaveElementAt54import io.kotest.matchers.collections.shouldHaveSingleElement55import io.kotest.matchers.collections.shouldHaveSize56import io.kotest.matchers.collections.shouldMatchInOrder57import io.kotest.matchers.collections.shouldMatchInOrderSubset58import io.kotest.matchers.collections.shouldNotBeIn59import io.kotest.matchers.collections.shouldNotBeMonotonicallyDecreasing60import io.kotest.matchers.collections.shouldNotBeMonotonicallyDecreasingWith61import io.kotest.matchers.collections.shouldNotBeMonotonicallyIncreasing62import io.kotest.matchers.collections.shouldNotBeMonotonicallyIncreasingWith63import io.kotest.matchers.collections.shouldNotBeSingleton64import io.kotest.matchers.collections.shouldNotBeSorted65import io.kotest.matchers.collections.shouldNotBeSortedBy66import io.kotest.matchers.collections.shouldNotBeSortedWith67import io.kotest.matchers.collections.shouldNotBeStrictlyDecreasing68import io.kotest.matchers.collections.shouldNotBeStrictlyDecreasingWith69import io.kotest.matchers.collections.shouldNotBeStrictlyIncreasing70import io.kotest.matchers.collections.shouldNotBeStrictlyIncreasingWith71import io.kotest.matchers.collections.shouldNotContainAnyOf72import io.kotest.matchers.collections.shouldNotContainDuplicates73import io.kotest.matchers.collections.shouldNotContainNoNulls74import io.kotest.matchers.collections.shouldNotContainNull75import io.kotest.matchers.collections.shouldNotContainOnlyNulls76import io.kotest.matchers.collections.shouldNotHaveElementAt77import io.kotest.matchers.collections.shouldNotHaveSize78import io.kotest.matchers.collections.shouldNotMatchEach79import io.kotest.matchers.collections.shouldNotMatchInOrder80import io.kotest.matchers.collections.shouldNotMatchInOrderSubset81import io.kotest.matchers.collections.singleElement82import io.kotest.matchers.collections.sorted83import io.kotest.matchers.collections.strictlyDecreasing84import io.kotest.matchers.collections.strictlyDecreasingWith85import io.kotest.matchers.collections.strictlyIncreasing86import io.kotest.matchers.collections.strictlyIncreasingWith87import io.kotest.matchers.ints.shouldBeGreaterThan88import io.kotest.matchers.ints.shouldBeInRange89import io.kotest.matchers.should90import io.kotest.matchers.shouldBe91import io.kotest.matchers.shouldHave92import io.kotest.matchers.shouldNot93import io.kotest.matchers.shouldNotBe94import io.kotest.matchers.shouldNotHave95import io.kotest.matchers.throwable.shouldHaveMessage96class CollectionMatchersTest : WordSpec() {97   private val countdown = (10 downTo 0).toList()98   private val asc = { a: Int, b: Int -> a - b }99   private val desc = { a: Int, b: Int -> b - a }100   init {101      "a descending non-empty list" should {102         "fail to ascend" {103            shouldFail {104               countdown.shouldBeSortedWith(asc)105            }106         }107         "descend" {108            countdown.shouldBeSortedWith(desc)109         }110         "not ascend" {111            countdown.shouldNotBeSortedWith(asc)112         }113         "fail not to descend" {114            shouldFail {115               countdown.shouldNotBeSortedWith(desc)116            }117         }118      }119      "sortedWith" should {120         val items = listOf(121            1 to "I",122            2 to "II",123            4 to "IV",124            5 to "V",125            6 to "VI",126            9 to "IX",127            10 to "X"128         )129         "work on non-Comparable given a Comparator" {130            items.shouldBeSortedWith(Comparator { a, b -> asc(a.first, b.first) })131         }132         "work on non-Comparable given a compare function" {133            items.shouldBeSortedWith { a, b -> asc(a.first, b.first) }134         }135      }136      "haveElementAt" should {137         "test that a collection contains the specified element at the given index" {138            listOf("a", "b", "c") should haveElementAt(1, "b")139            listOf("a", "b", "c") shouldNot haveElementAt(1, "c")140            listOf("a", "b", null) should haveElementAt(2, null)141            listOf("a", "b", null) shouldNot haveElementAt(3, null)142            listOf("a", "b", "c").shouldHaveElementAt(1, "b")143            listOf("a", "b", "c").shouldNotHaveElementAt(1, "c")144            listOf("a", "b", null).shouldHaveElementAt(2, null)145         }146         "support type inference for subtypes of collection" {147            val tests = listOf(148               TestSealed.Test1("test1"),149               TestSealed.Test2(2)150            )151            tests should haveElementAt(0, TestSealed.Test1("test1"))152            tests.shouldHaveElementAt(1, TestSealed.Test2(2))153         }154      }155      "containNull()" should {156         "test that a collection contains at least one null" {157            listOf(1, 2, null) should containNull()158            listOf(null) should containNull()159            listOf(1, 2) shouldNot containNull()160            listOf(1, 2, null).shouldContainNull()161            listOf(null).shouldContainNull()162            listOf(1, 2).shouldNotContainNull()163         }164      }165      "sorted" should {166         "test that a collection is sorted" {167            emptyList<Int>() shouldBe sorted<Int>()168            listOf(1) shouldBe sorted<Int>()169            listOf(1, 2, 3, 4) shouldBe sorted<Int>()170            shouldThrow<AssertionError> {171               listOf(2, 1) shouldBe sorted<Int>()172            }.shouldHaveMessage("List [2, 1] should be sorted. Element 2 at index 0 was greater than element 1")173            listOf(1, 2, 6, 9).shouldBeSorted()174            shouldThrow<AssertionError> {175               listOf(2, 1).shouldBeSorted()176            }.shouldHaveMessage("List [2, 1] should be sorted. Element 2 at index 0 was greater than element 1")177            shouldThrow<AssertionError> {178               listOf(1, 2, 3).shouldNotBeSorted()179            }.shouldHaveMessage("List [1, 2, 3] should not be sorted")180         }181         "restrict items at the error message" {182            val longList = (1..1000).toList()183            shouldThrow<AssertionError> {184               longList.shouldNotBeSorted()185            }.shouldHaveMessage("List [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, ...and 980 more (set the 'kotest.assertions.collection.print.size' JVM property to see more / less items)] should not be sorted")186         }187      }188      "sortedBy" should {189         val items = listOf(190            1 to "I",191            2 to "II",192            4 to "IV",193            5 to "V",194            6 to "VI",195            9 to "IX",196            10 to "X"197         )198         "compare by the tranformed value" {199            items.shouldBeSortedBy { it.first }200            items.shouldNotBeSortedBy { it.second }201         }202      }203      "shouldBeIncreasing" should {204         "test that a collection is monotonically increasing" {205            listOf(1, 2, 2, 3) shouldBe monotonicallyIncreasing<Int>()206            listOf(6, 5) shouldNotBe monotonicallyIncreasing<Int>()207            listOf(1, 2, 2, 3).shouldBeMonotonicallyIncreasing()208            listOf(6, 5).shouldNotBeMonotonicallyIncreasing()209         }210         "test that a collection is monotonically increasing according to comparator" {211            val comparator = Comparator(desc)212            listOf(3, 2, 2, 1) shouldBe monotonicallyIncreasingWith(comparator)213            listOf(5, 6) shouldNotBe monotonicallyIncreasingWith(comparator)214            listOf(3, 2, 2, 1).shouldBeMonotonicallyIncreasingWith(comparator)215            listOf(5, 6).shouldNotBeMonotonicallyIncreasingWith(comparator)216         }217         "test that a collection is strictly increasing" {218            listOf(1, 2, 3) shouldBe strictlyIncreasing<Int>()219            listOf(1, 2, 2, 3) shouldNotBe strictlyIncreasing<Int>()220            listOf(6, 5) shouldNotBe strictlyIncreasing<Int>()221            listOf(1, 2, 3).shouldBeStrictlyIncreasing()222            listOf(1, 2, 2, 3).shouldNotBeStrictlyIncreasing()223            listOf(6, 5).shouldNotBeStrictlyIncreasing()224         }225         "test that a collection is strictly increasing according to comparator" {226            val comparator = Comparator(desc)227            listOf(3, 2, 1) shouldBe strictlyIncreasingWith(comparator)228            listOf(3, 2, 2, 1) shouldNotBe strictlyIncreasingWith(comparator)229            listOf(5, 6) shouldNotBe strictlyIncreasingWith(comparator)230            listOf(3, 2, 1).shouldBeStrictlyIncreasingWith(comparator)231            listOf(3, 2, 2, 1).shouldNotBeStrictlyIncreasingWith(comparator)232            listOf(5, 6).shouldNotBeStrictlyIncreasingWith(comparator)233         }234      }235      "shouldBeDecreasing" should {236         "test that a collection is monotonically decreasing" {237            listOf(3, 2, 2, -4) shouldBe monotonicallyDecreasing<Int>()238            listOf(5, 6) shouldNotBe monotonicallyDecreasing<Int>()239            listOf(3, 2, 2, -4).shouldBeMonotonicallyDecreasing()240            listOf(5, 6).shouldNotBeMonotonicallyDecreasing()241         }242         "test that a collection is monotonically decreasing according to comparator" {243            val comparator = Comparator(desc)244            listOf(-4, 2, 2, 3) shouldBe monotonicallyDecreasingWith(comparator)245            listOf(6, 5) shouldNotBe monotonicallyDecreasingWith(comparator)246            listOf(-4, 2, 2, 3).shouldBeMonotonicallyDecreasingWith(comparator)247            listOf(6, 5).shouldNotBeMonotonicallyDecreasingWith(comparator)248         }249         "test that a collection is strictly decreasing" {250            listOf(3, 2, -4) shouldBe strictlyDecreasing<Int>()251            listOf(3, 2, 2, -4) shouldNotBe strictlyDecreasing<Int>()252            listOf(5, 6) shouldNotBe strictlyDecreasing<Int>()253            listOf(3, 2, -4).shouldBeStrictlyDecreasing()254            listOf(3, 2, 2, -4).shouldNotBeStrictlyDecreasing()255            listOf(5, 6).shouldNotBeStrictlyDecreasing()256         }257         "test that a collection is strictly decreasing according to comparator" {258            val comparator = Comparator(desc)259            listOf(-4, 2, 3) shouldBe strictlyDecreasingWith(comparator)...

CollectionMatchers.kt

Source:CollectionMatchers.kt

...102    return testMonotonicallyDecreasingWith(value,103      Comparator { a, b -> a.compareTo(b) })104  }105}106fun <T> beMonotonicallyDecreasingWith(comparator: Comparator<in T>): Matcher<List<T>> = monotonicallyDecreasingWith(107  comparator)108fun <T> monotonicallyDecreasingWith(comparator: Comparator<in T>): Matcher<List<T>> = object : Matcher<List<T>> {109  override fun test(value: List<T>): MatcherResult {110    return testMonotonicallyDecreasingWith(value, comparator)111  }112}113private fun <T> testMonotonicallyDecreasingWith(value: List<T>, comparator: Comparator<in T>): MatcherResult {114  val failure = value.zipWithNext().withIndex().find { (_, pair) -> comparator.compare(pair.first, pair.second) < 0 }115  val snippet = value.show().value116  val elementMessage = when (failure) {117    null -> ""118    else -> ". Element ${failure.value.second} at index ${failure.index + 1} was not monotonically decreased from previous element."119  }120  return MatcherResult(121    failure == null,122    { "List [$snippet] should be monotonically decreasing$elementMessage" },...

decreasing.kt

Source:decreasing.kt

...76      return testMonotonicallyDecreasingWith(value) { a, b -> a.compareTo(b) }77   }78}79fun <T> beMonotonicallyDecreasingWith(comparator: Comparator<in T>): Matcher<List<T>> =80   monotonicallyDecreasingWith(comparator)81fun <T> monotonicallyDecreasingWith(comparator: Comparator<in T>): Matcher<List<T>> = object : Matcher<List<T>> {82   override fun test(value: List<T>): MatcherResult {83      return testMonotonicallyDecreasingWith(value, comparator)84   }85}86private fun <T> testMonotonicallyDecreasingWith(value: List<T>, comparator: Comparator<in T>): MatcherResult {87   val failure = value.zipWithNext().withIndex().find { (_, pair) -> comparator.compare(pair.first, pair.second) < 0 }88   val snippet = value.print().value89   val elementMessage = when (failure) {90      null -> ""91      else -> ". Element ${failure.value.second} at index ${failure.index + 1} was not monotonically decreased from previous element."92   }93   return MatcherResult(94      failure == null,95      { "List [$snippet] should be monotonically decreasing$elementMessage" },...

monotonicallyDecreasingWith

Using AI Code Generation

1val list = listOf(1, 2, 3, 4, 5, 6)2list should monotonicallyDecreasingWith { it % 2 == 0 }3val list = listOf(1, 2, 3, 4, 5, 6)4list should monotonicallyDecreasingWith { it % 2 == 0 }5val list = listOf(1, 2, 3, 4, 5, 6)6list should monotonicallyDecreasingWith { it % 2 == 0 }7val list = listOf(1, 2, 3, 4, 5, 6)8list should monotonicallyDecreasingWith { it % 2 == 0 }9val list = listOf(1, 2, 3, 4, 5, 6)10list should monotonicallyDecreasingWith { it % 2 == 0 }11val list = listOf(1, 2, 3, 4, 5, 6)12list should monotonicallyDecreasingWith { it % 2 == 0 }13val list = listOf(1, 2, 3, 4, 5, 6)14list should monotonicallyDecreasingWith { it % 2 == 0 }15val list = listOf(1, 2, 3, 4, 5, 6)16list should monotonicallyDecreasingWith { it % 2 == 0 }

monotonicallyDecreasingWith

Using AI Code Generation

1val list = listOf(3, 2, 1, 0, -1, -2)2list should decreasing()3list should decreasing().withTolerance(1)4list should decreasing().withTolerance(2)5list should decreasing().withTolerance(3)6list should decreasing().withTolerance(4)7list should decreasing().withTolerance(5)8list should decreasing().withTolerance(6)9list should decreasing().withTolerance(7)10list should decreasing().withTolerance(8)11list should decreasing().withTolerance(9)12list should decreasing().withTolerance(10)13list should decreasing().withTolerance(11)14list should decreasing().withTolerance(12)15list should decreasing().withTolerance(13)16list should decreasing().withTolerance(14)17list should decreasing().withTolerance(15)18list should decreasing().withTolerance(16)19list should decreasing().withTolerance(17)20list should decreasing().withTolerance(18)21list should decreasing().withTolerance(19)22list should decreasing().withTolerance(20)23list should decreasing().withTolerance(21)24list should decreasing().withTolerance(22)25list should decreasing().withTolerance(23)26list should decreasing().withTolerance(24)27list should decreasing().withTolerance(25)28list should decreasing().withTolerance(26)29list should decreasing().withTolerance(27)30list should decreasing().withTolerance(28)31list should decreasing().withTolerance(29)32list should decreasing().withTolerance(30)33list should decreasing().withTolerance(31)34list should decreasing().withTolerance(32)35list should decreasing().withTolerance(33)36list should decreasing().withTolerance(34)37list should decreasing().withTolerance(35)38list should decreasing().withTolerance(36)39list should decreasing().withTolerance(37)40list should decreasing().withTolerance(38)41list should decreasing().withTolerance(39)42list should decreasing().withTolerance(40)43list should decreasing().withTolerance(41)44list should decreasing().withTolerance(42)45list should decreasing().withTolerance(43)46list should decreasing().withTolerance(44)47list should decreasing().withTolerance(45)48list should decreasing().withTolerance(46)49list should decreasing().withTolerance(47)

monotonicallyDecreasingWith

Using AI Code Generation

1val list = listOf(1, 2, 3, 4, 5)2list should monotonicallyDecreasingWith { it > 0 }3val list = listOf(1, 2, 3, 4, 5)4list should monotonicallyDecreasingWith { it > 0 }5val list = listOf(1, 2, 3, 4, 5)6list should monotonicallyDecreasingWith { it > 0 }7val list = listOf(1, 2, 3, 4, 5)8list should monotonicallyDecreasingWith { it > 0 }9val list = listOf(1, 2, 3, 4, 5)10list should monotonicallyDecreasingWith { it > 0 }11val list = listOf(1, 2, 3, 4, 5)12list should monotonicallyDecreasingWith { it > 0 }13val list = listOf(1, 2, 3, 4, 5)14list should monotonicallyDecreasingWith { it > 0 }15val list = listOf(1, 2, 3, 4, 5)16list should monotonicallyDecreasingWith { it > 0 }

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