How to use matchers class of io.kotest.matchers.property package

Best Kotest code snippet using io.kotest.matchers.property.matchers

FailingKotestAsserts.kt

Source:FailingKotestAsserts.kt

...13import io.kotest.assertions.json.*14import io.kotest.assertions.throwables.shouldThrowAny15import io.kotest.assertions.throwables.shouldThrowExactly16import io.kotest.assertions.withClue17import io.kotest.matchers.Matcher18import io.kotest.matchers.MatcherResult19import io.kotest.matchers.booleans.shouldBeFalse20import io.kotest.matchers.booleans.shouldBeTrue21import io.kotest.matchers.collections.shouldBeEmpty22import io.kotest.matchers.collections.shouldBeOneOf23import io.kotest.matchers.collections.shouldBeSameSizeAs24import io.kotest.matchers.collections.shouldBeSorted25import io.kotest.matchers.collections.shouldContain26import io.kotest.matchers.date.shouldBeAfter27import io.kotest.matchers.ints.shouldBeEven28import io.kotest.matchers.ints.shouldBeGreaterThan29import io.kotest.matchers.ints.shouldBeGreaterThanOrEqual30import io.kotest.matchers.ints.shouldBeLessThan31import io.kotest.matchers.ints.shouldBeLessThanOrEqual32import io.kotest.matchers.ints.shouldBeZero33import io.kotest.matchers.maps.shouldBeEmpty34import io.kotest.matchers.maps.shouldContain35import io.kotest.matchers.maps.shouldContainKey36import io.kotest.matchers.maps.shouldContainValue37import io.kotest.matchers.nulls.shouldBeNull38import io.kotest.matchers.should39import io.kotest.matchers.shouldBe40import io.kotest.matchers.shouldNot41import io.kotest.matchers.string.shouldBeBlank42import io.kotest.matchers.string.shouldBeEmpty43import io.kotest.matchers.string.shouldBeUpperCase44import io.kotest.matchers.string.shouldContain45import io.kotest.matchers.string.shouldNotBeBlank46import java.time.LocalDate47import org.junit.jupiter.api.Test48/**49 * Kotest assertions50 *51 * - [Kotest Assertions Documentation](https://kotest.io/assertions/)52 * - [Github](https://github.com/kotest/kotest/)53 */54class FailingKotestAsserts {55    @Test56    fun `General assertions`() {57        assertSoftly {58            "text" shouldBe "txet"59            "hi".shouldBeBlank()...

RoomsKtTest.kt

Source:RoomsKtTest.kt

1package com.tylerkindy.betrayal.db2import com.tylerkindy.betrayal.Direction3import io.kotest.assertions.throwables.shouldThrow4import io.kotest.core.spec.style.DescribeSpec5import io.kotest.matchers.collections.shouldBeEmpty6import io.kotest.matchers.collections.shouldContainExactlyInAnyOrder7import io.kotest.matchers.should8import io.kotest.matchers.shouldBe9import io.kotest.property.Arb10import io.kotest.property.Exhaustive11import io.kotest.property.arbitrary.ShortShrinker12import io.kotest.property.arbitrary.arbitrary13import io.kotest.property.arbitrary.enum14import io.kotest.property.arbitrary.set15import io.kotest.property.checkAll16import io.kotest.property.exhaustive.ints17import io.kotest.property.exhaustive.map18import io.kotest.property.forAll19import org.jetbrains.exposed.sql.insert20import org.jetbrains.exposed.sql.select21import org.jetbrains.exposed.sql.selectAll22import org.jetbrains.exposed.sql.transactions.transaction...

CategoryRepositoryCreateSpec.kt

Source:CategoryRepositoryCreateSpec.kt

1package com.gaveship.category.domain.model2import com.gaveship.category.Mock3import io.kotest.assertions.throwables.shouldThrow4import io.kotest.core.spec.style.ExpectSpec5import io.kotest.matchers.collections.shouldHaveSize6import io.kotest.matchers.collections.singleElement7import io.kotest.matchers.nulls.beNull8import io.kotest.matchers.shouldBe9import io.kotest.matchers.shouldHave10import io.kotest.matchers.shouldNot11import io.kotest.property.Arb12import io.kotest.property.arbitrary.chunked13import io.kotest.property.arbitrary.next14import io.kotest.property.arbitrary.single15import io.kotest.property.arbitrary.string16import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest17import org.springframework.data.jpa.repository.config.EnableJpaAuditing18import javax.validation.ConstraintViolation19import javax.validation.ConstraintViolationException20@EnableJpaAuditing21@DataJpaTest(22    showSql = true,23    properties = [24        "spring.flyway.enabled=false",...

FSimplifySquareRootBigIntPropertyBasedTest.kt

Source:FSimplifySquareRootBigIntPropertyBasedTest.kt

1import io.kotest.assertions.throwables.shouldThrow2import io.kotest.core.spec.style.FunSpec3import io.kotest.matchers.should4import io.kotest.matchers.shouldBe5import io.kotest.matchers.string.startWith6import io.kotest.property.Arb7import io.kotest.property.arbitrary.arbitrary8import io.kotest.property.arbitrary.int9import io.kotest.property.arbitrary.negativeInt10import io.kotest.property.arbitrary.nonNegativeInt11import io.kotest.property.checkAll12class FSimplifySquareRootBigIntPropertyBasedTest : FunSpec({13    context("Simplification of square roots") {14        val squareRootArb = arbitrary {15            SquareRootBI(16                coefficient = Arb.nonNegativeInt().bind().toBigInteger(),17                radicand = Arb.nonNegativeInt().bind().toBigInteger()18            )19        }...

CategoryRepositorySelectSpec.kt

Source:CategoryRepositorySelectSpec.kt

1package com.gaveship.category.domain.model2import com.gaveship.category.Mock3import io.kotest.core.spec.style.StringSpec4import io.kotest.matchers.collections.shouldHaveSize5import io.kotest.matchers.collections.singleElement6import io.kotest.matchers.nulls.beNull7import io.kotest.matchers.shouldBe8import io.kotest.matchers.shouldHave9import io.kotest.matchers.shouldNot10import io.kotest.property.arbitrary.chunked11import io.kotest.property.arbitrary.single12import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest13import org.springframework.data.jpa.repository.config.EnableJpaAuditing14@EnableJpaAuditing15@DataJpaTest(16    showSql = true,17    properties = [18        "spring.flyway.enabled=false",19        "spring.jpa.hibernate.ddl-auto=create"20    ]21)22class CategoryRepositorySelectSpec(23    private val categoryRepository: CategoryRepository...

PropertyBasedTestingSpec.kt

Source:PropertyBasedTestingSpec.kt

1package sandbox.samples2import io.kotest.core.spec.style.StringSpec3import io.kotest.inspectors.forAll4import io.kotest.matchers.comparables.shouldBeGreaterThan5import io.kotest.matchers.shouldNotBe6import io.kotest.matchers.string.shouldHaveLength7import io.kotest.matchers.types.shouldBeInstanceOf8import io.kotest.property.Arb9import io.kotest.property.arbitrary.bind10import io.kotest.property.arbitrary.default11import io.kotest.property.arbitrary.positiveInts12import io.kotest.property.arbitrary.string13import io.kotest.property.checkAll14class PropertyBasedTestingSpec : StringSpec() {15    data class Person(val name: String, val age: Int)16    init {17        "can do property-based testing - with 100 examples" {18            checkAll<String, String> { a, b ->19                (a + b) shouldHaveLength(a.length + b.length)20            }21        }...

ParserTest.kt

Source:ParserTest.kt

1import io.kotest.core.spec.style.StringSpec2import io.kotest.matchers.be3import io.kotest.matchers.collections.shouldContain4import io.kotest.matchers.comparables.shouldBeEqualComparingTo5import io.kotest.matchers.maps.shouldContain6import io.kotest.matchers.maps.shouldNotContainKey7import io.kotest.matchers.should8import io.kotest.matchers.shouldBe9import io.kotest.matchers.shouldNot10import io.kotest.matchers.string.endWith11import io.kotest.matchers.string.shouldNotContain12import io.kotest.matchers.string.startWith13import io.kotest.property.Arb14import io.kotest.property.arbitrary.next15import io.kotest.property.arbitrary.string16import io.kotest.property.checkAll17import org.jsoup.Jsoup18import org.jsoup.select.Elements19//TODO("")20class SanitzeHtmlSpec : StringSpec({21    "No soft hypen in replaced characters" {22        val arb = Arb.string()23        arb.checkAll(99000) {24            a ->25            val result = sanitizeHtml(a)26            result shouldNotContain  "\u00AD"...

PrimitiveSpec.kt

Source:PrimitiveSpec.kt

1package org.study2import io.kotest.core.spec.style.StringSpec3import io.kotest.matchers.booleans.shouldBeTrue4import io.kotest.matchers.shouldBe5import io.kotest.matchers.string.shouldHaveLength6import io.kotest.matchers.types.shouldBeInstanceOf7import io.kotest.property.forAll8class PrimitiveSpec : StringSpec({9    "åç¬¦ Char"{10        val a = 'a'11        a.shouldBe('a')12        a.code.shouldBe(97) //ASCII characters13        a.shouldBeInstanceOf<Char>()14    }15    "åç¬¦ä¸²"{16        val str = "hello world"17        str.shouldBe("hello world")18        str.shouldHaveLength(11)19        forAll<String, String> { a, b ->20            println("a:$a, b:$b")...

matchers

Using AI Code Generation

1    import io.kotest.matchers.property.*2    import io.kotest.matchers.string.*3    import io.kotest.matchers.types.*4    import io.kotest.matchers.uri.*5    import io.kotest.matchers.xml.*6    import io.kotest.matchers.collections.*7    import io.kotest.matchers.file.*8    import io.kotest.matchers.ints.*9    import io.kotest.matchers.longs.*10    import io.kotest.matchers.maps.*11    import io.kotest.matchers.numerics.*12    import io.kotest.matchers.sequences.*13    import io.kotest.matchers.booleans.*14    import io.kotest.matchers.floats.*15    import io.kotest.matchers.doubles.*16    import io.kotest.matchers.bytes.*17    import io.kotest.matchers.chars.*18    import io.kot

matchers

Using AI Code Generation

1    import io.kotest.matchers.property.*2    import io.kotest.matchers.string.*3    import io.kotest.matchers.types.*4    import io.kotest.matchers.collections.*5    import io.kotest.matchers.numerics.*6    import io.kotest.matchers.date.*7    import io.kotest.matchers.time.*8    import io.kotest.matchers.booleans.*9    import io.kotest.matchers.files.*10    import io.kotest.matchers.maps.*11    import io.kotest.matchers.text.*12    import io.kotest.matchers.throwable.*13    import io.kotest.matchers.regex.*14    import io.kotest.matchers.sequences.*15    import io.kotest.matchers.either.*16    import io.kotest.matchers.result.*17    import io.kotest.matchers.option.*18    import io.kotest.matchers.optional.*

matchers

Using AI Code Generation

1    import io.kotest.matchers.property.shouldBeGreaterThanOrEqual2    import io.kotest.matchers.property.shouldBeLessThanOrEqual3    import io.kotest.matchers.property.shouldBeInRange4    import io.kotest.matchers.property.shouldBeInClosedRange5    import io.kotest.matchers.string.shouldContain6    import io.kotest.matchers.string.shouldEndWith7    import io.kotest.matchers.string.shouldHaveLength8    import io.kotest.matchers.string.shouldMatch9    import io.kotest.matchers.string.shouldNotContain10    import io.kotest.matchers.string.shouldNotEndWith11    import io.kotest.matchers.string.shouldNotMatch12    import io.kotest.matchers.string.shouldNotStartWith13    import io.kotest.matchers.string.shouldStartWith14    import io.kotest.matchers.types.beInstanceOf15    import io.kotest.matchers.types.beNull16    import io.kotest.matchers.types.beOfType17    import io.kotest.matchers.types.shouldBeInstanceOf18    import io.kotest.matchers.types.shouldBeNull19    import io.kotest.matchers.types.shouldBeOfType20    import io.kotest.matchers.collections.shouldBeEmpty21    import io.kotest.matchers.collections.shouldBeIn22    import io.kotest.matchers.collections.shouldBeNotEmpty23    import io.kotest.matchers.collections.shouldContain24    import io.kotest.matchers.collections.shouldContainAll25    import io.kotest.matchers.collections.shouldContainAnyOf26    import io.kotest.matchers.collections.shouldContainExactly27    import io.kotest.matchers.collections.shouldContainInOrder28    import io.kotest.matchers.collections.shouldContainKey29    import io.kotest.matchers.collections.shouldContainKeys30    import io.kotest.matchers.collections.shouldContainOnly31    import io.kotest.matchers.collections.shouldContainValue32    import io.kotest.matchers.collections.shouldContainValues33    import io.kotest.matchers.collections.shouldHaveAtLeastSize34    import io.kotest.matchers.collections

matchers

Using AI Code Generation

1    import io.kotest.matchers.property.shouldBeGreaterThanOrEqual2    import io.kotest.matchers.property.shouldBeLessThanOrEqual3    import io.kotest.matchers.property.shouldHaveSameHashCodeAs4    import io.kotest.matchers.property.shouldNotBeGreaterThanOrEqual5    import io.kotest.matchers.property.shouldNotBeLessThanOrEqual6    import io.kotest.matchers.property.shouldNotHaveSameHashCodeAs7    import io.kotest.matchers.property.shouldNotStartWith8    import io.kotest.matchers.property.shouldStartWith9    import io.kotest.matchers.property.shouldStartWithAnyOf10    import io.kotest.matchers.string.beEmpty11    import io.kotest.matchers.string.beEmptyString12    import io.kotest.matchers.string.beEmptyOrNullString13    import io.kotest.matchers.string.beLowerCase14    import io.kotest.matchers.string.beNullOrEmpty15    import io.kotest.matchers.string.beNullOrBlank16    import io.kotest.matchers.string.beUpperCase17    import io.kotest.matchers.string.contain18    import io.kotest.matchers.string.containIgnoringCase19    import io.kotest.matchers.string.containOnlyDigits20    import io.kotest.matchers.string.containOnlyWhitespace21    import io.kotest.matchers.string.containOnlyOnce22    import io.kotest.matchers.string.haveLength23    import io.kotest.matchers.string.haveLineCount24    import io.kotest.matchers.string.haveMaxLength25    import io.kotest.matchers.string.haveMinLength26    import io.kotest.matchers.string.haveSubstring27    import io.kotest.matchers.string.haveSubstringIgnoringCase28    import io.kotest.matchers.string.match29    import io.kotest.matchers.string.matchIgnoringCase30    import io.kotest.matchers.string.shouldBeBlank31    import io.kotest.matchers.string.shouldBeEmpty32    import io.kotest.matchers.string.shouldBeEmptyString33    import io.kotest.matchers.string.shouldBeEmptyOrNullString34    import io.kotest.matchers.string.shouldBeLowerCase35    import io.kotest.matchers.string.shouldBeNullOrEmpty36    import io.kotest.matchers

matchers

Using AI Code Generation

1        data class Person(val name: String, val age: Int, val address: Address)2        data class Address(val city: String, val country: String)3        val person = Person("John", 30, Address("London", "UK"))4        person.shouldHaveProperty(Person::name, "John")5        person.shouldHaveProperty(Person::age, 30)6        person.shouldHaveProperty(Person::address, Address("London", "UK"))7    }8    fun testMatchersOfIoKotestMatchersCollectionPackage() {9        val list = listOf(1, 2, 3, 4, 5)10        list.shouldContain(1)11        list.shouldHaveSize(5)12        list.shouldBeSorted()13        list.shouldBeSortedBy { it * -1 }14        list.shouldBeSortedWith(compareBy { it * -1 })15        list.shouldBeUnique()16        list.shouldContainAll(1, 2, 3, 4, 5)17        list.shouldContainInOrder(1, 2, 3, 4, 5)18        list.shouldContainInOrderOnly(1, 2, 3, 4, 5)19        list.shouldContainNone(6, 7, 8, 9, 10)20        list.shouldContainOnly(1, 2, 3, 4, 5)21        list.shouldHaveAtLeastSize(4)22        list.shouldHaveAtMostSize(6)23        list.shouldHaveSingleElement(1)24        list.shouldHaveSingleElement { it == 1 }25        list.shouldNotContain(6)26        list.shouldNotContainAll(6, 7, 8, 9, 10)27        list.shouldNotContainInOrder(1, 2, 3, 5, 4)28        list.shouldNotContainInOrderOnly(1, 2, 3, 5, 4)29        list.shouldNotContainOnly(1, 2, 3, 4, 5, 6)30        list.shouldNotHaveDuplicates()31        list.shouldNotHaveElementAt(1, 1)32        list.shouldNotHaveSingleElement(2)33        list.shouldNotHaveSingleElement { it == 2 }34        list.shouldStartWith(1)

matchers

Using AI Code Generation

1        result.shouldBeLessThan(20)2        result.shouldBeGreaterThan(5)3        result.shouldBeBetween(1, 20)4        result.shouldBeExactly(10)5        result.shouldBeOneOf(1, 2, 3, 10)6        result.shouldBeInRange(1..20)7        result.shouldBeInClosedRange(1..20)8        result.shouldBeInOpenRange(1 until 20)9        result.shouldBeInHalfOpenRange(1..20)10        result.shouldBeInClosedRange(1..20)11        result.shouldBeInOpenRange(1 until 20)12        result.shouldBeInHalfOpenRange(1 until 20)13        result.shouldBeInClosedRange(1..20)14        result.shouldBeInOpenRange(1 until 20)15        result.shouldBeInHalfOpenRange(1 until 20)16        result.shouldBeInClosedRange(1..20)17        result.shouldBeInOpenRange(1 until 20)18        result.shouldBeInHalfOpenRange(1 until 20)19        result.shouldBeInClosedRange(1..20)20        result.shouldBeInOpenRange(1 until 20)21        result.shouldBeInHalfOpenRange(1 until 20)22        result.shouldBeInClosedRange(1..20)23        result.shouldBeInOpenRange(1 until 20)24        result.shouldBeInHalfOpenRange(1 until 20)25        result.shouldBeInClosedRange(1..20)26        result.shouldBeInOpenRange(1 until 20)27        result.shouldBeInHalfOpenRange(1 until 20)28        string.shouldContain("Hell")29        string.shouldStartWith("He")30        string.shouldEndWith("lo")31        string.shouldMatch("H.*o")32        string.shouldNotMatch("H.*l")33        string.shouldNotBeEmpty()34        string.shouldBeBlank()35        string.shouldBeEmpty()36        string.shouldNotBeBlank()37        string.shouldBeLowerCase()38        string.shouldBeUpperCase()

matchers

Using AI Code Generation

1        actual.shouldBeGreaterThan(5)2        actual.shouldBeLessThan(10)3        actual.shouldBeInRange(6..8)4        actual.shouldBeBetween(6, 8)5        actualString.shouldContain("lin")6        actualString.shouldStartWith("kot")7        actualString.shouldEndWith("lin")8        actualString.shouldMatch("kot.*lin")9        actualString.shouldNotMatch("kot.*lin.*")10        actualString.shouldBeEmpty()11        actualString.shouldNotBeEmpty()12        actualString.shouldBeBlank()13        actualString.shouldNotBeBlank()14        actualString.shouldBeLowerCase()15        actualString.shouldBeUpperCase()16        actualString.shouldBeEqualToIgnoringCase("KOTLIN")17        actualString.shouldBeEqualToIgnoringWhitespace("kotlin ")18        actualString.shouldHaveLength(6)19        actualString.shouldHaveSameLengthAs("kotlin")20        actualString.shouldHaveLineCount(1)21        actualString.shouldHaveLineCount(2)22        actualString.shouldHaveLineCount(3)23        actualString.shouldHaveLineCount(4)24        actualString.shouldHaveLineCount(5)25        actualString.shouldHaveLineCount(6)26        actualString.shouldHaveLineCount(7)27        actualString.shouldHaveLineCount(8)28        actualString.shouldHaveLineCount(9)29        actualString.shouldHaveLineCount(10)30        actualString.shouldHaveLineCount(11)31        actualString.shouldHaveLineCount(12)32        actualString.shouldHaveLineCount(13)33        actualString.shouldHaveLineCount(14)34        actualString.shouldHaveLineCount(15)35        actualString.shouldHaveLineCount(16)36        actualString.shouldHaveLineCount(17)37        actualString.shouldHaveLineCount(18)38        actualString.shouldHaveLineCount(19)39        actualString.shouldHaveLineCount(20)40        actualString.shouldHaveLineCount(21)41        actualString.shouldHaveLineCount(22)42        actualString.shouldHaveLineCount(23)43        actualString.shouldHaveLineCount(24)44        actualString.shouldHaveLineCount(25)45        actualString.shouldHaveLineCount(26)

matchers

Using AI Code Generation

1        matchers.shouldHaveSize(2)2        matchers.shouldContainAll("A", "B")3    }4}5class Matchers : StringSpec() {6    init {7        "should be equal" {8        }9        "should be different" {10        }11        "should be null" {12        }13        "should not be null" {14        }15        "should be null or blank" {16        }17        "should not be null or blank" {18        }19        "should be empty" {20        }21        "should not be empty" {22        }23        "should be blank" {24        }25        "should not be blank" {26        }27        "should be one of" {28            "A" shouldBeOneOf("A", "B", "C")29            "D" shouldNotBeOneOf("A", "B", "C")30        }31        "should be positive" {32        }33        "should be negative" {34        }35        "should be zero" {36        }37        "should be greater than" {38        }39        "should be less than" {40        }41        "should be greater than or equal to" {42        }43        "should be less than or equal to" {44        }

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