How to use startWith method of io.kotest.matchers.string.start class

Best Kotest code snippet using io.kotest.matchers.string.start.startWith

NullSafeTypeTest.kt

Source:NullSafeTypeTest.kt Github

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...3import io.kotest.core.spec.style.StringSpec4import io.kotest.matchers.should5import io.kotest.matchers.shouldBe6import io.kotest.matchers.shouldNotBe7import io.kotest.matchers.string.startWith8class NullSafeTypeTest : StringSpec({9 lateinit var nullSafeType: NullSafeType10 beforeTest {11 nullSafeType = NullSafeType()12 }13 "a can not null" {14 nullSafeType.a shouldNotBe null15 }16 "b null safe => ?" {17 nullSafeType.b = null18 nullSafeType.b shouldBe null19 }20 "c let null safe => .let{}" {21 nullSafeType.c() shouldBe null22 nullSafeType.c()?.let {23 if (it.isNotBlank()) {24 it.capitalize()25 }26 } shouldBe null27 }28 "d assert null => !!" {29 val tmp: String? = nullSafeType.d()30 val exception = shouldThrow<NullPointerException> {31 tmp!!.count() shouldBe 032 }33// println("exception.cause = ${exception.cause}")34 exception.message shouldBe null35 }36 "e elvis operator => :?" {37 val exception = shouldThrow<IllegalArgumentException> {38 nullSafeType.e() ?: throw IllegalArgumentException("nullSafeType e is null")39 }40 exception.message should startWith("nullSafeType e is null")41 }42 "f safe cast => as?" {43 @Suppress("CAST_NEVER_SUCCEEDS")44 val tmp: Int? = nullSafeType.f as? Int45 tmp shouldBe null46 }47 "g safe nullable list => filterNotNull()" {48 val intList: List<Int> = nullSafeType.gList.filterNotNull()49 intList shouldNotBe null50 intList.count() shouldBe 351 }52})...

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BmiForCmKgTest.kt

Source:BmiForCmKgTest.kt Github

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...5import io.kotest.assertions.throwables.shouldThrow6import io.kotest.matchers.doubles.plusOrMinus7import io.kotest.matchers.should8import io.kotest.matchers.shouldBe9import io.kotest.matchers.string.startWith10class BmiForCmKgTest: StringSpec({11 "test BMI correct values" {12 val bmi = BmiForCmKg(60.0, 176.0)13 bmi.count() shouldBe (19.37 plusOrMinus 0.001)14 }15 "test BMI less than min mass" {16 val bmi = BmiForCmKg(BmiForCmKg.MIN_MASS - 1, 176.0)17 val exception = shouldThrow<Exception> {18 bmi.count()19 }20 exception.message should startWith("The mass is less than ${BmiForCmKg.MIN_MASS}")21 }22 "test BMI more than max mass" {23 val bmi = BmiForCmKg(BmiForCmKg.MAX_MASS + 1, 176.0)24 val exception = shouldThrow<Exception> {25 bmi.count()26 }27 exception.message should startWith("The mass is more than ${BmiForCmKg.MAX_MASS}")28 }29 "test BMI less than min height" {30 val bmi = BmiForCmKg(60.0,BmiForCmKg.MIN_HEIGHT - 1)31 val exception = shouldThrow<Exception> {32 bmi.count()33 }34 exception.message should startWith("The height is less than ${BmiForCmKg.MIN_HEIGHT}")35 }36 "test BMI more than max height" {37 val bmi = BmiForCmKg(60.0,BmiForCmKg.MAX_HEIGHT + 2)38 val exception = shouldThrow<Exception> {39 bmi.count()40 }41 exception.message should startWith("The height is more than ${BmiForCmKg.MAX_HEIGHT}")42 }43}) {44}...

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ModelsSpec.kt

Source:ModelsSpec.kt Github

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...5import io.kotest.assertions.throwables.shouldThrow6import io.kotest.core.spec.style.StringSpec7import io.kotest.matchers.should8import io.kotest.matchers.shouldBe9import io.kotest.matchers.string.startWith10import java.io.File11class ModelsSpec : StringSpec({12 "can deserialize a UserInfo from json string" {13 val userInfoData: String = File("./resources/github-user-info.json").readText(Charsets.UTF_8)14 val userInfo = GitHubUserInfo.deserializeFromJson(userInfoData)15 userInfo.map { it.username shouldBe "adomokos" }16 }17 "won't work with invalid data" {18 val exception = shouldThrow<KlaxonException> {19 GitHubUserInfo.deserializeFromJson("something")20 }21 exception.message should startWith("Unexpected character at position 0: 's'")22 }23 "can deserialize a UserInfo from json string with Either returned type" {24 val userInfoData: String = File("./resources/github-user-info.json").readText(Charsets.UTF_8)25 val userInfo = GitHubUserInfo.deserializeFromJson2(userInfoData).value().fix().unsafeRunSync()26 userInfo.map { it.username shouldBe "adomokos" }27 }28 "returns Left if any error occurs" {29 val userInfo =30 GitHubUserInfo.deserializeFromJson2("something").value().fix().unsafeRunSync()31 userInfo shouldBe Left(AppError.JSONDeserializationError)32 }33})...

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FunSpecSimpleTest.kt

Source:FunSpecSimpleTest.kt Github

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...5import 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" } """24 json.shouldNotEqualJson(returnJsonOfAValidDev())25 }26}) {27 companion object {28 fun returnJsonOfAValidDev() : String{29 return """ { "age" : 23, "name": "matheus", "location": "sao paulo" } """...

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SelfDefExceptionTest.kt

Source:SelfDefExceptionTest.kt Github

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2import io.kotest.assertions.throwables.shouldThrow3import io.kotest.core.spec.style.StringSpec4import io.kotest.matchers.should5import io.kotest.matchers.shouldBe6import io.kotest.matchers.string.startWith7class SelfDefExceptionTest : StringSpec({8 "cache exception" {9 val num: Int? = null10 try {11 num!!.plus(1)12 } catch (e: Exception) {13// println("e.message = ${e.message}")14 e.message shouldBe null15 }16 }17 "self define exception" {18 val num: Int? = null19 val exception = shouldThrow<SelfDefException> {20 num ?: throw SelfDefException("null is num")21 }22// println("exception.message = ${exception.message}")23 exception.message should startWith("null is")24 }25})...

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MyTest.kt

Source:MyTest.kt Github

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...3import io.kotest.core.spec.style.StringSpec4import io.kotest.matchers.comparables.shouldNotBeLessThan5import io.kotest.matchers.should6import io.kotest.matchers.shouldBe7import io.kotest.matchers.string.startWith8class MyTest : StringSpec({9 "length should return size of string" {10 "hello".length shouldBe 511 }12 "startsWith should test for a prefix" {13 "world" should startWith("wor")14 }15 "should give back any first name with less than 1 character's" {16 Faker().name.firstName() shouldNotBeLessThan "1"17 }18})...

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PropertyTestExample.kt

Source:PropertyTestExample.kt Github

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1package com.ivy.wallet2import io.kotest.core.spec.style.StringSpec3import io.kotest.matchers.should4import io.kotest.matchers.shouldBe5import io.kotest.matchers.string.startWith6import io.kotest.property.forAll7class PropertyTestExample : StringSpec({8 "length should return size of string" {9 "hello".length shouldBe 510 }11 "startsWith should test for a prefix" {12 "world" should startWith("wor")13 }14 "String size" {15 forAll<String, String> { a, b ->16 a.length + b.length == (a + b).length17 }18 }19})...

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VersionUtilTest.kt

Source:VersionUtilTest.kt Github

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1package io.routr.util2import io.kotest.core.spec.style.StringSpec3import io.kotest.matchers.should4import io.kotest.matchers.shouldBe5import io.kotest.matchers.string.startWith6class VersionUtilTest : StringSpec({7 "length should return size of string" {8 "hello".length shouldBe 59 }10 "startsWith should test for a prefix" {11 "world" should startWith("wor")12 }13})...

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startWith

Using AI Code Generation

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1fun String.startWith(prefix: String): Boolean2fun String.startWithIgnoringCase(prefix: String): Boolean3Kotlin | String.trimIndent() method4Kotlin | String.trimMargin() method5Kotlin | String.truncate() method6Kotlin | String.truncateAtWord() method7Kotlin | String.underline() method8Kotlin | String.underscore() method9Kotlin | String.upperUnderscore() method10Kotlin | String.upperCamelCase() method11Kotlin | String.upperHyphen() method12Kotlin | String.upperSnakeCase() method13Kotlin | String.upperSpaceCase() method14Kotlin | String.upperTitleCase() method15Kotlin | String.upperUnderscore() method16Kotlin | String.upperCamelCase() method17Kotlin | String.upperHyphen() method18Kotlin | String.upperSnakeCase() method19Kotlin | String.upperSpaceCase() method

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