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

Best Kotest code snippet using io.kotest.matchers.string.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()...

KotestAsserts.kt

Source:KotestAsserts.kt

...12import io.kotest.assertions.json.*13import io.kotest.assertions.throwables.shouldThrowAny14import io.kotest.assertions.throwables.shouldThrowExactly15import io.kotest.assertions.withClue16import io.kotest.matchers.Matcher17import io.kotest.matchers.MatcherResult18import io.kotest.matchers.booleans.shouldBeFalse19import io.kotest.matchers.booleans.shouldBeTrue20import io.kotest.matchers.collections.shouldBeEmpty21import io.kotest.matchers.collections.shouldBeOneOf22import io.kotest.matchers.collections.shouldBeSameSizeAs23import io.kotest.matchers.collections.shouldBeSorted24import io.kotest.matchers.collections.shouldContain25import io.kotest.matchers.date.shouldBeAfter26import io.kotest.matchers.ints.shouldBeEven27import io.kotest.matchers.ints.shouldBeGreaterThan28import io.kotest.matchers.ints.shouldBeGreaterThanOrEqual29import io.kotest.matchers.ints.shouldBeLessThan30import io.kotest.matchers.ints.shouldBeLessThanOrEqual31import io.kotest.matchers.ints.shouldBeZero32import io.kotest.matchers.maps.shouldBeEmpty33import io.kotest.matchers.maps.shouldContain34import io.kotest.matchers.maps.shouldContainKey35import io.kotest.matchers.maps.shouldContainValue36import io.kotest.matchers.nulls.shouldBeNull37import io.kotest.matchers.should38import io.kotest.matchers.shouldBe39import io.kotest.matchers.shouldNot40import io.kotest.matchers.string.shouldBeBlank41import io.kotest.matchers.string.shouldBeEmpty42import io.kotest.matchers.string.shouldBeUpperCase43import io.kotest.matchers.string.shouldContain44import io.kotest.matchers.string.shouldNotBeBlank45import java.time.LocalDate46import org.junit.jupiter.api.Test47/**48 * Kotest assertions49 *50 * - [Kotest Assertions Documentation](https://kotest.io/assertions/)51 * - [Github](https://github.com/kotest/kotest/)52 */53class KotestAsserts {54    @Test55    fun `General assertions`() {56        "text" shouldBe "text"57        " ".shouldBeBlank()58        "hi".shouldNotBeBlank()...

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        }...

MatcherTest.kt

Source:MatcherTest.kt

1package com.psg.kotest_example2import io.kotest.core.spec.style.StringSpec3import io.kotest.matchers.collections.sorted4import io.kotest.matchers.maps.contain5import io.kotest.matchers.maps.haveKey6import io.kotest.matchers.maps.haveValue7import io.kotest.matchers.should8import io.kotest.matchers.shouldBe9import io.kotest.matchers.string.*10class MatcherTest : StringSpec() {11    init {12        // 'shouldBe' ëì¼í¨ì ì²´í¬íë Matcher ìëë¤.13        "hello world" shouldBe haveLength(11) // lengthê° 11ì´ì´ì¼ í¨ì ì²´í¬ í©ëë¤.14        "hello" should include("ll") // íë¼ë¯¸í°ê° í¬í¨ëì´ ìëì§ ì²´í¬ í©ëë¤.15        "hello" should endWith("lo") // íë¼ë¯¸í°ê° ëì í¬í¨ëëì§ ì²´í¬ í©ëë¤.16        "hello" should match("he...") // íë¼ë¯¸í°ê° ë§¤ì¹ëëì§ ì²´í¬ í©ëë¤.17        "hello".shouldBeLowerCase() // ìë¬¸ìë¡ ìì±ëìëì§ ì²´í¬ í©ëë¤.18        val list = emptyList<String>()19        val list2 = listOf("aaa", "bbb", "ccc")20        val map = mapOf<String, String>(Pair("aa", "11"))21        list should beEmpty() // ììê° ë¹ìëì§ ì²´í¬ í©ëë¤.22        list2 shouldBe sorted<String>() // í´ë¹ ìë£íì´ ì ë ¬ ëìëì§ ì²´í¬ í©ëë¤.23        map should contain("aa", "11") // í´ë¹ ììê° í¬í¨ëìëì§ ì²´í¬ í©ëë¤....

FunSpecSimpleTest.kt

Source:FunSpecSimpleTest.kt

1package com.kotlinspring.styles2import io.kotest.assertions.json.shouldEqualJson3import io.kotest.assertions.json.shouldNotEqualJson4import io.kotest.core.spec.style.FunSpec5import io.kotest.matchers.should6import io.kotest.matchers.shouldBe7import io.kotest.matchers.string.endWith8import io.kotest.matchers.string.shouldContain9import io.kotest.matchers.string.startWith10class FunSpecSimpleTest : FunSpec({11    test("name of tester should return the correct length") {12        val nameTester = "Matheus Marin"13        nameTester.shouldContain("Matheus")14        nameTester.length shouldBe 1315        nameTester should startWith("Matheus")16        nameTester should endWith("Marin")17    }18    test("a json with a developer should be valid") {19        val json = """ { "age" : 23, "name": "matheus", "location": "sao paulo" } """20        json.shouldEqualJson(returnJsonOfAValidDev())21    }22    test("a json with a PO should be invalid") {23        val json = """ { "age" : 45, "name": "robert", "location": "rio de janeiro" } """...

ToudouSteps.kt

Source:ToudouSteps.kt

2import fr.lidonis.toudou.Label3import fr.lidonis.toudou.Toudou4import fr.lidonis.toudou.Toudous5import io.cucumber.java8.En6import io.kotest.matchers.collections.shouldBeEmpty7import io.kotest.matchers.shouldBe8import io.kotest.matchers.shouldNot9import io.kotest.matchers.string.beEmpty10class ToudouSteps : En {11    private lateinit var toudous: Toudous12    private lateinit var toudouList: List<Toudou>13    private lateinit var toudou: Toudou14    init {15        Given("Empty/A toudous") {16            toudous = Toudous()17        }18        When("I list all toudous") {19            toudouList = toudous.all20        }21        When("I add a toudou with label {string}") { label: String ->22            toudou = toudous.add(Label(label))23        }...

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.string.shouldContain2    import io.kotest.matchers.string.shouldNotContain3    import io.kotest.matchers.string.shouldStartWith4    import io.kotest.matchers.string.shouldNotStartWith5    import io.kotest.matchers.string.shouldEndWith6    import io.kotest.matchers.string.shouldNotEndWith7    import io.kotest.matchers.collections.shouldContain8    import io.kotest.matchers.collections.shouldNotContain9    import io.kotest.matchers.collections.shouldContainAll10    import io.kotest.matchers.collections.shouldContainNone11    import io.kotest.matchers.collections.shouldContainExactly12    import io.kotest.matchers.collections.shouldContainInOrder13    import io.kotest.matchers.collections.shouldContainExactlyInAnyOrder14    import io.kotest.matchers.collections.shouldContainOnlyNulls15    import io.kotest.matchers.collections.shouldContainNull16    import io.kotest.matchers.collections.shouldContainKey17    import io.kotest.matchers.collections.shouldContainValue18    import io.kotest.matchers.collections.shouldHaveSize19    import io.kotest.matchers.collections.shouldNotBeEmpty20    import io.kotest.matchers.collections.shouldBeEmpty21    import io.kotest.matchers.collections.shouldBeSorted22    import io.kotest.matchers.collections.shouldBeSortedBy23    import io.kotest.matchers.collections.shouldHaveSingleElement24    import io.kotest.matchers.collections.shouldHaveSameSizeAs25    import io.kotest.matchers.collections.shouldBeIn26    import io.kotest.matchers.collections.shouldNotBeIn27    import io.kotest.matchers.collections.shouldBeUnique28    import io.kotest.matchers.collections.shouldBeSingleton29    import io.kotest.matchers.collections.shouldHaveAtLeastOneElement30    import io.kotest.matchers.collections.shouldHaveAtLeastOneElementWhich31    import io.kotest.matchers.collections.shouldHaveAtLeastOneElementSatisfying32    import io.kotest.matchers.collections.shouldHaveAtLeastOneKey33    import io.kotest.matchers.collections.shouldHaveAtLeastOneValue34    import io.kotest.matchers.collections.shouldHaveAtLeastSize35    import io.kot

matchers

Using AI Code Generation

1    import io.kotest.matchers.string.shouldStartWith2    class StringSpecExample : StringSpec({3        "this test has a config" {4            "hello".shouldStartWith("h")5        }.config(enabled = true)6        "this test has no config" {7            "hello".shouldStartWith("h")8        }9    })10    import io.kotest.core.spec.style.FunSpec11    class FunSpecExample : FunSpec({12        context("a context") {13            test("this is a test") {14            }15            test("this is another test").config(enabled = false) {16            }17        }18    })19    import io.kotest.core.spec.style.DescribeSpec20    class DescribeSpecExample : DescribeSpec({21        describe("a describe") {22            it("this is a test") {23            }24            it("this is another test").config(enabled = false) {25            }26        }27    })28    import io.kotest.core.spec.style.BehaviorSpec29    class BehaviorSpecExample : BehaviorSpec({30        given("a given") {31            `when`("a when") {32                then("this is a test") {33                }34                then("this is another test").config(enabled = false) {35                }36            }37        }38    })

matchers

Using AI Code Generation

1The shouldNot() function2The shouldBe() function3The shouldNotBe() function4The shouldBeNull() function5The shouldNotBeNull() function6The shouldThrow() function

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