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How to use test method of io.kotest.matchers.doubles.Exactly class

Best Kotest code snippet using io.kotest.matchers.doubles.Exactly.test

matchers.kt

Source:matchers.kt

1package tutorial.kotest2import io.kotest.assertions.throwables.shouldThrow3import io.kotest.assertions.throwables.shouldThrowAny4import io.kotest.assertions.throwables.shouldThrowExactly5import io.kotest.core.spec.style.DescribeSpec6import io.kotest.core.test.AssertionMode7import io.kotest.matchers.booleans.shouldBeTrue8import io.kotest.matchers.collections.shouldBeIn9import io.kotest.matchers.collections.shouldBeOneOf10import io.kotest.matchers.collections.shouldBeSameSizeAs11import io.kotest.matchers.collections.shouldBeSingleton12import io.kotest.matchers.collections.shouldBeSmallerThan13import io.kotest.matchers.collections.shouldBeSorted14import io.kotest.matchers.collections.shouldBeUnique15import io.kotest.matchers.collections.shouldContain16import io.kotest.matchers.collections.shouldContainAll17import io.kotest.matchers.collections.shouldContainAnyOf18import io.kotest.matchers.collections.shouldContainDuplicates19import io.kotest.matchers.collections.shouldContainExactly20import io.kotest.matchers.collections.shouldContainExactlyInAnyOrder21import io.kotest.matchers.collections.shouldContainInOrder22import io.kotest.matchers.collections.shouldContainNull23import io.kotest.matchers.collections.shouldEndWith24import io.kotest.matchers.collections.shouldHaveAtLeastSize25import io.kotest.matchers.collections.shouldHaveLowerBound26import io.kotest.matchers.collections.shouldHaveSingleElement27import io.kotest.matchers.collections.shouldHaveSize28import io.kotest.matchers.collections.shouldHaveUpperBound29import io.kotest.matchers.collections.shouldNotContainAnyOf30import io.kotest.matchers.collections.shouldNotHaveElementAt31import io.kotest.matchers.collections.shouldStartWith32import io.kotest.matchers.comparables.shouldBeEqualComparingTo33import io.kotest.matchers.comparables.shouldBeLessThanOrEqualTo34import io.kotest.matchers.date.shouldBeToday35import io.kotest.matchers.date.shouldHaveSameHoursAs36import io.kotest.matchers.doubles.Percentage37import io.kotest.matchers.doubles.beNaN38import io.kotest.matchers.doubles.plusOrMinus39import io.kotest.matchers.doubles.shouldBeNaN40import io.kotest.matchers.doubles.shouldNotBeNaN41import io.kotest.matchers.equality.shouldBeEqualToComparingFields42import io.kotest.matchers.equality.shouldBeEqualToComparingFieldsExcept43import io.kotest.matchers.equality.shouldBeEqualToIgnoringFields44import io.kotest.matchers.equality.shouldBeEqualToUsingFields45import io.kotest.matchers.file.shouldBeADirectory46import io.kotest.matchers.file.shouldBeAbsolute47import io.kotest.matchers.file.shouldExist48import io.kotest.matchers.file.shouldNotBeEmpty49import io.kotest.matchers.ints.beOdd50import io.kotest.matchers.ints.shouldBeBetween51import io.kotest.matchers.ints.shouldBeInRange52import io.kotest.matchers.ints.shouldBeLessThan53import io.kotest.matchers.ints.shouldBeLessThanOrEqual54import io.kotest.matchers.ints.shouldBeOdd55import io.kotest.matchers.ints.shouldBePositive56import io.kotest.matchers.ints.shouldBeZero57import io.kotest.matchers.iterator.shouldBeEmpty58import io.kotest.matchers.iterator.shouldHaveNext59import io.kotest.matchers.maps.shouldBeEmpty60import io.kotest.matchers.maps.shouldContain61import io.kotest.matchers.maps.shouldContainAll62import io.kotest.matchers.maps.shouldContainExactly63import io.kotest.matchers.maps.shouldContainKey64import io.kotest.matchers.nulls.shouldBeNull65import io.kotest.matchers.nulls.shouldNotBeNull66import io.kotest.matchers.shouldBe67import io.kotest.matchers.shouldNot68import io.kotest.matchers.shouldNotBe69import io.kotest.matchers.string.beEmpty70import io.kotest.matchers.string.shouldBeBlank71import io.kotest.matchers.string.shouldBeEmpty72import io.kotest.matchers.string.shouldBeEqualIgnoringCase73import io.kotest.matchers.string.shouldBeInteger74import io.kotest.matchers.string.shouldBeLowerCase75import io.kotest.matchers.string.shouldBeUpperCase76import io.kotest.matchers.string.shouldContain77import io.kotest.matchers.string.shouldContainADigit78import io.kotest.matchers.string.shouldContainIgnoringCase79import io.kotest.matchers.string.shouldContainOnlyDigits80import io.kotest.matchers.string.shouldContainOnlyOnce81import io.kotest.matchers.string.shouldEndWith82import io.kotest.matchers.string.shouldHaveLength83import io.kotest.matchers.string.shouldHaveLineCount84import io.kotest.matchers.string.shouldHaveMaxLength85import io.kotest.matchers.string.shouldHaveMinLength86import io.kotest.matchers.string.shouldHaveSameLengthAs87import io.kotest.matchers.string.shouldMatch88import io.kotest.matchers.string.shouldNotBeEmpty89import io.kotest.matchers.string.shouldStartWith90import io.kotest.matchers.throwable.shouldHaveCause91import io.kotest.matchers.throwable.shouldHaveCauseInstanceOf92import io.kotest.matchers.throwable.shouldHaveCauseOfType93import io.kotest.matchers.throwable.shouldHaveMessage94import io.kotest.matchers.types.shouldBeInstanceOf95import io.kotest.matchers.types.shouldBeSameInstanceAs96import io.kotest.matchers.types.shouldBeTypeOf97import io.kotest.matchers.uri.shouldHaveHost98import io.kotest.matchers.uri.shouldHavePort99import io.kotest.matchers.uri.shouldHaveScheme100import java.io.File101import java.net.URI102import java.time.LocalDate103import java.time.LocalTime104// https://kotest.io/docs/assertions/core-matchers.html105class MatchersTest : DescribeSpec({106    describe("general") {107        it("basics") {108            (1 == 1).shouldBeTrue()109            (2 + 2) shouldBe 4110            val foo: Any = "foobar"111            foo.shouldBeTypeOf<String>() shouldContain "fo"112            "".shouldBeEmpty()113            "x".shouldNot(beEmpty()) // manually negate114            "x".shouldNotBeEmpty() // reusable115            URI("https://tba") shouldHaveHost "tba"116            URI("https://tba:81") shouldHavePort 81117            URI("https://tba") shouldHaveScheme "https"118            File("/").apply {119                shouldExist()120                shouldBeADirectory()121                shouldBeAbsolute()122                shouldNotBeEmpty()123            }124            // executable, hidden, readable, smaller, writeable, containFile, extension, path, ...125            LocalDate.now().shouldBeToday()126            // before/after, within, same, between, have year/month/day/hour/...127            LocalTime.now().shouldHaveSameHoursAs(LocalTime.now())128            // before/after/between, sameMinute/Seconds/Nanos129        }130        it("numbers") {131            1 shouldBeLessThan 2132            1 shouldBeLessThanOrEqual 1 // Int-based; returns this133            1 shouldBeLessThanOrEqualTo 1 // Comparble-based; void134            1 shouldBeEqualComparingTo 1 // Comparable-based135            1.shouldBeBetween(0, 2)136            1 shouldBeInRange 0..2137            0.shouldBeZero()138            1.shouldBePositive()139            1.shouldBeOdd()140            (1.2).shouldBe(1.20001.plusOrMinus(Percentage(20.0)))141            (1.2).shouldNotBeNaN()142        }143        it("strings") {144            // generic: "abc" shouldBe "abc"145            "aBc" shouldBeEqualIgnoringCase "abc"146            "".shouldBeEmpty()147            " ".shouldBeBlank() // empty or whitespace148            "abc" shouldContain ("b")149            "aBc" shouldContainIgnoringCase "bc"150            "x-a-x" shouldContain """\-[a-z]\-""".toRegex()151            "-a-" shouldMatch """\-[a-z]\-""".toRegex()152            "abc" shouldStartWith ("a")153            "abc" shouldEndWith ("c")154            "ab aa" shouldContainOnlyOnce "aa"155            "abc".shouldBeLowerCase()156            "ABC".shouldBeUpperCase()157            "abc" shouldHaveLength 3158            "a\nb" shouldHaveLineCount 2159            "ab" shouldHaveMinLength 1 shouldHaveMaxLength 3160            "abc" shouldHaveSameLengthAs "foo"161            "1".shouldBeInteger()162            "12".shouldContainOnlyDigits()163            "abc1".shouldContainADigit() // at least one164        }165        it("types") {166            @Connotation167            open class SuperType()168            class SubType : SuperType()169            val sameRef = SuperType()170            sameRef.shouldBeSameInstanceAs(sameRef)171            val superType: SuperType = SubType()172            superType.shouldBeTypeOf<SubType>() // exact runtime match (SuperType won't work!)173            superType.shouldBeInstanceOf<SuperType>() // T or below174//            SubType().shouldHaveAnnotation(Connotation::class)175            val nullable: String? = null176            nullable.shouldBeNull()177        }178        it("collections") {179            emptyList<Int>().iterator().shouldBeEmpty()180            listOf(1).iterator().shouldHaveNext()181            listOf(1, 2) shouldContain 1 // at least182            listOf(1, 2) shouldContainExactly listOf(1, 2) // in-order; not more183            listOf(1, 2) shouldContainExactlyInAnyOrder listOf(2, 1) // out-order; not more184            listOf(0, 3, 0, 4, 0).shouldContainInOrder(3, 4) // possible items in between185            listOf(1) shouldNotContainAnyOf listOf(2, 3) // black list186            listOf(1, 2, 3) shouldContainAll listOf(3, 2) // out-order; more187            listOf(1, 2, 3).shouldBeUnique() // no duplicates188            listOf(1, 2, 2).shouldContainDuplicates() // at least one duplicate189            listOf(1, 2).shouldNotHaveElementAt(1, 3)190            listOf(1, 2) shouldStartWith 1191            listOf(1, 2) shouldEndWith 2192            listOf(1, 2) shouldContainAnyOf listOf(2, 3)193            val x = SomeType(1)194            x shouldBeOneOf listOf(x) // by reference/instance195            x shouldBeIn listOf(SomeType(1)) // by equality/structural196            listOf(1, 2, null).shouldContainNull()197            listOf(1) shouldHaveSize 1198            listOf(1).shouldBeSingleton() // size == 1199            listOf(1).shouldBeSingleton {200                it.shouldBeOdd()201            }202            listOf(1).shouldHaveSingleElement {203                beOdd().test(it).passed() // have to return a boolean here :-/204            }205            listOf(2, 3) shouldHaveLowerBound 1 shouldHaveUpperBound 4206            listOf(1) shouldBeSmallerThan listOf(1, 2)207            listOf(1) shouldBeSameSizeAs listOf(2)208            listOf(1, 2) shouldHaveAtLeastSize 1209            listOf(1, 2).shouldBeSorted()210            mapOf(1 to "a").shouldContain(1, "a") // at least this211            mapOf(1 to "a") shouldContainAll mapOf(1 to "a") // at least those212            mapOf(1 to "a") shouldContainExactly mapOf(1 to "a") // not more213            mapOf(1 to "a") shouldContainKey 1214            emptyMap<Any, Any>().shouldBeEmpty()215        }216        it("exceptions") {217            class SubException() : Exception()...

TimeSeriesDBTest.kt

Source:TimeSeriesDBTest.kt

1package org.raspikiln.tsdb2import io.kotest.core.spec.style.FunSpec3import io.kotest.matchers.collections.shouldBeMonotonicallyIncreasingWith4import io.kotest.matchers.doubles.shouldBeGreaterThan5import io.kotest.matchers.doubles.shouldBeGreaterThanOrEqual6import io.kotest.matchers.doubles.shouldBeLessThan7import io.kotest.matchers.ints.shouldBeExactly8import io.kotest.matchers.ints.shouldBeLessThan9import io.kotest.matchers.shouldBe10import kotlinx.coroutines.delay11import java.io.File12import java.time.Instant13import java.util.Comparator14import kotlin.random.Random15import kotlin.time.Duration16import kotlin.time.Duration.Companion.hours17import kotlin.time.Duration.Companion.seconds18class TimeSeriesDBTest : FunSpec({19    test("able to write and do things") {20        val db = timeSeriesDb(retention = 10.hours)21        val temperatureA = MetricGenerator(MetricIdentifier(name = "temperatureA"), 0..20)22        val temperatureB = MetricGenerator(MetricIdentifier(name = "temperatureB"), 40..60)23        var metricCount = 024        repeat(2_000) { _ ->25            val metricsAdded = (1..10).random()26            metricCount += metricsAdded27            repeat(metricsAdded) {28                db.write(listOf(temperatureA.next(), temperatureB.next()))29            }30            listOf(temperatureA, temperatureB).forEach { metric ->31                val query = db.query(metric.identifier, Instant.now().minusSeconds(3_000)..Instant.now()).toList()32                query.forEach { metric shouldContain it.value }33                query.shouldBeMonotonicallyIncreasingWith(Comparator.comparing { it.timestamp })34                query.count() shouldBe metricCount35            }36            delay(5)37        }38    }39    test("clear partitions after retention") {40        val db = timeSeriesDb(retention = 10.seconds)41        val metricMeasurement = MetricGenerator(MetricIdentifier(name = "temperatureA"), 0..20)42        repeat(500) {43            db.write(metricMeasurement.next())44        }45        delay(12_000)46        db.write(metricMeasurement.next())47        db.query(48            metricName = metricMeasurement.identifier,49            timestampRange = Instant.now().minusSeconds(20)..Instant.now()50        ).count() shouldBeExactly 151    }52})53data class MetricGenerator(54    val identifier: MetricIdentifier,55    val range: IntRange56) {57    infix fun shouldContain(value: Double) {58        range.first.toDouble() shouldBeLessThan value59        range.last.toDouble() shouldBeGreaterThanOrEqual value60    }61    fun next(): Measurement =62        Measurement(63            metric = identifier,64            datapoint = Datapoint(65                timestamp = Instant.now(),66                value = nextValue()67            )68        )69    private fun nextValue() = Random.Default.nextDouble(range.first.toDouble(), range.last.toDouble())70}71private fun timeSeriesDb(retention: Duration = 10.hours) =72    StandardTimeSeriesDB(options = StandardTimeSeriesDB.Options(73        directory = File("data-test"),74        partitionDuration = 10.seconds,75        partitionCapacity = 1_000,76        retention = retention,77        deleteDelayTime = 0.seconds78    )).apply { purgeAll() }...

RandomTest.kt

Source:RandomTest.kt

1package net.dinkla.raytracer.math2import io.kotest.core.spec.style.AnnotationSpec3import io.kotest.matchers.collections.shouldContainExactlyInAnyOrder4import io.kotest.matchers.doubles.shouldBeGreaterThanOrEqual5import io.kotest.matchers.doubles.shouldBeLessThan6import io.kotest.matchers.ints.shouldBeGreaterThanOrEqual7import io.kotest.matchers.ints.shouldBeLessThan8import io.kotest.matchers.shouldBe9import net.dinkla.raytracer.interfaces.Random10class RandomTest : AnnotationSpec() {11    private val NUM = 100012    @Test13    fun randInt() {14        for (i in 0 until NUM) {15            val r = Random.int(10)16            r shouldBeGreaterThanOrEqual 017            r shouldBeLessThan 1018        }19        for (i in 0 until NUM) {20            val r = Random.int(18, 44)21            r shouldBeGreaterThanOrEqual 1822            r shouldBeLessThan 44...

BLEDistanceUnscentedKalmanFilterTest.kt

Source:BLEDistanceUnscentedKalmanFilterTest.kt

1package uk.nhs.riskscore.internal2import io.kotest.core.spec.style.StringSpec3import io.kotest.matchers.booleans.shouldBeTrue4import io.kotest.matchers.doubles.shouldBeGreaterThanOrEqual5import io.kotest.matchers.ints.shouldBeExactly6import io.kotest.property.arbitrary.orNull7import io.kotest.property.checkAll8import uk.nhs.riskscore.internal.kotest.bleDistanceUnscentedKalmanFilter9import uk.nhs.riskscore.internal.kotest.nonEmptyList10import uk.nhs.riskscore.internal.kotest.smallNumericDoubles11import uk.nhs.riskscore.internal.kotest.smallPositiveDoubles12internal class BLEDistanceUnscentedKalmanFilterTest : StringSpec({13    "transition function is non-negative" {14        checkAll(15            smallNumericDoubles,16            smallNumericDoubles,17            bleDistanceUnscentedKalmanFilter) { state, noise, filter ->18            val result = filter.transitionFunction(state, noise)19            result shouldBeGreaterThanOrEqual 0.020        }21    }22    "smooth function returns the same number of elements as the input" {23        checkAll(24            100,25            bleDistanceUnscentedKalmanFilter,...

TestVec2.kt

Source:TestVec2.kt

1import io.kotest.matchers.doubles.shouldBeExactly2import io.kotest.matchers.ints.shouldBeExactly3import io.kotest.matchers.types.shouldHaveSameHashCodeAs4import io.lacuna.artifex.Vec25import kotlin.test.Test6import org.openrndr.kartifex.Vec2 as KVec27class TestVec2 {8    @Test9    fun testHash() {10        run {11            val v2 = Vec2(0.0, 0.0)12            val kv2 = KVec2(0.0, 0.0)13            v2.shouldHaveSameHashCodeAs(kv2)14        }15        run {16            val v2 = Vec2(2.0, 2.1231)17            val kv2 = KVec2(2.0, 2.1231)18            v2.shouldHaveSameHashCodeAs(kv2)19        }20    }21    @Test22    fun testCompare() {23        val v2 = Vec2(0.0, 0.0)24        val kv2 = KVec2(0.0, 0.0)25        v2.compareTo(v2).shouldBeExactly(kv2.compareTo(kv2))26        val v2a = Vec2(1.0, 0.0)27        val kv2a = KVec2(1.0, 0.0)28        v2a.compareTo(v2).shouldBeExactly(kv2a.compareTo(kv2))29        v2.compareTo(v2a).shouldBeExactly(kv2.compareTo(kv2a))30    }31    @Test32    fun testPseudoNorm() {33        val v2 = Vec2(2100.0, 3220.0)34        val pn = v2.pseudoNorm()35        val kv2 = KVec2(2100.0, 3220.0)36        val kpn = kv2.pseudoNorm()37        pn.x.shouldBeExactly(kpn.x)38        pn.y.shouldBeExactly(kpn.y)39    }40}

FightingTests.kt

Source:FightingTests.kt

2import com.gogo.steelbotrun.vkbot.game.battle.actions.ActionType3import com.gogo.steelbotrun.vkbot.game.battle.actions.Area4import com.gogo.steelbotrun.vkbot.game.moves.MovesRepository5import com.gogo.steelbotrun.vkbot.game.character.stats.Stats6import io.kotest.core.spec.style.StringSpec7import io.kotest.matchers.comparables.shouldBeEqualComparingTo8import io.kotest.matchers.doubles.shouldBeExactly9class FightingTests : StringSpec({10	"Moves Repository should contain moves from file" {11		val moves = MovesRepository("/src/test/resources/static/test_moves.txt").get()12		moves.first().name shouldBeEqualComparingTo "Kick"13		moves[1].name shouldBeEqualComparingTo "Side Kick"14		moves.first().getEffect(ActionType.Attack, Area.Body) shouldBeExactly 15.015		moves[1].getEffect(ActionType.Attack, Area.Body) shouldBeExactly 0.016		moves[1].getEffect(ActionType.Attack, Area.Head, Stats("Strength" to 2.0, "Agility" to 1.0)) shouldBeExactly 18.517		moves.first().description shouldBeEqualComparingTo "Kick from Karate movies"18		moves[1].description shouldBeEqualComparingTo "Cool move from fighting on ps3"19	}20})...

exercise11.kt

Source:exercise11.kt

1package dev.programadorthi2import io.kotest.core.spec.style.FunSpec3import io.kotest.matchers.doubles.shouldBeExactly4import io.kotest.matchers.string.shouldBeEqualIgnoringCase5import kotlin.random.Random6import kotlin.random.nextULong7class Exercise11Test : FunSpec({8    val random = Random.Default9    val f = { a: Int, b: Double -> a * (1 + b / 100) }10    repeat(6) {11        test("swapArgs $it") {12            val a = random.nextInt()13            val b = random.nextDouble(until = Double.MAX_VALUE)14            val result = swapArgs(curry(f))(b)(a)15            result shouldBeExactly f(a, b)16        }17    }18})...

exercise10.kt

Source:exercise10.kt

1package dev.programadorthi2import io.kotest.core.spec.style.FunSpec3import io.kotest.matchers.doubles.shouldBeExactly4import io.kotest.matchers.string.shouldBeEqualIgnoringCase5import kotlin.random.Random6import kotlin.random.nextULong7class Exercise10Test : FunSpec({8    val random = Random.Default9    val f = { a: Int, b: Double -> a * (1 + b / 100) }10    repeat(6) {11        test("curry $it") {12            val a = random.nextInt()13            val b = random.nextDouble(until = Double.MAX_VALUE)14            val result = curry(f)(a)(b)15            result shouldBeExactly f(a, b)16        }17    }18})...

test

Using AI Code Generation

1    import io.kotest.matchers.doubles.Exactly2    import io.kotest.matchers.doubles.shouldBeExactly3    import io.kotest.matchers.doubles.Tolerance4    import io.kotest.matchers.doubles.shouldBeWithinTolerance5import io.kotest.matchers.doubles.Exactly6import io.kotest.matchers.doubles.shouldBeExactly7import io.kotest.matchers.doubles.Tolerance8import io.kotest.matchers.doubles.shouldBeWithinTolerance

test

Using AI Code Generation

1    fun test() {2        d1.shouldBeExactly(d2)3    }4`testImplementation("io.kotest:kotest-runner-junit5:4.1.1")`  5`testImplementation("io.kotest:kotest-assertions-core:4.1.1")`  6`testImplementation("io.kotest:kotest-assertions-shared:4.1.1")`

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