How to use Result.mapError method of io.kotest.common.results class

Best Kotest code snippet using io.kotest.common.results.Result.mapError

SpecExtensions.kt

Source: SpecExtensions.kt Github

copy

Full Screen

1package io.kotest.engine.spec2import io.kotest.common.mapError3import io.kotest.core.config.ExtensionRegistry4import io.kotest.core.extensions.Extension5import io.kotest.core.extensions.SpecExtension6import io.kotest.core.listeners.AfterSpecListener7import io.kotest.core.listeners.BeforeSpecListener8import io.kotest.core.listeners.FinalizeSpecListener9import io.kotest.core.listeners.IgnoredSpecListener10import io.kotest.core.listeners.InstantiationErrorListener11import io.kotest.core.listeners.InstantiationListener12import io.kotest.core.listeners.PrepareSpecListener13import io.kotest.core.listeners.SpecInstantiationListener14import io.kotest.core.spec.Spec15import io.kotest.core.spec.functionOverrideCallbacks16import io.kotest.core.test.TestCase17import io.kotest.core.test.TestResult18import io.kotest.engine.extensions.ExtensionException19import io.kotest.engine.extensions.MultipleExceptions20import io.kotest.mpp.Logger21import io.kotest.mpp.bestName22import kotlin.reflect.KClass23/​**24 * Used to invoke extension points /​ listeners /​ callbacks on specs.25 */​26internal class SpecExtensions(private val registry: ExtensionRegistry) {27 private val logger = Logger(SpecExtensions::class)28 /​**29 * Returns all [Extension]s applicable to a [Spec]. This includes extensions via30 * function overrides, those registered explicitly in the spec as part of the DSL,31 * and project wide extensions from configuration.32 */​33 fun extensions(spec: Spec): List<Extension> {34 return spec.extensions() + /​/​ overriding the extensions function in the spec35 spec.listeners() + /​/​ overriding the listeners function in the spec36 spec.functionOverrideCallbacks() + /​/​ dsl37 spec.registeredExtensions() + /​/​ added to the spec via register38 registry.all() /​/​ globals39 }40 suspend fun beforeSpec(spec: Spec): Result<Spec> {41 logger.log { Pair(spec::class.bestName(), "beforeSpec $spec") }42 val errors = extensions(spec).filterIsInstance<BeforeSpecListener>().mapNotNull { ext ->43 runCatching { ext.beforeSpec(spec) }44 .mapError { ExtensionException.BeforeSpecException(it) }.exceptionOrNull()45 }46 return when {47 errors.isEmpty() -> Result.success(spec)48 errors.size == 1 -> Result.failure(errors.first())49 else -> Result.failure(MultipleExceptions(errors))50 }51 }52 /​**53 * Runs all the after spec listeners for this [Spec]. All errors are caught and wrapped54 * in [AfterSpecListener] and if more than one error, all will be returned as a [MultipleExceptions].55 */​56 suspend fun afterSpec(spec: Spec): Result<Spec> = runCatching {57 logger.log { Pair(spec::class.bestName(), "afterSpec $spec") }58 spec.registeredAutoCloseables().let { closeables ->59 logger.log { Pair(spec::class.bestName(), "Closing ${closeables.size} autocloseables [$closeables]") }60 closeables.forEach {61 if(it.isInitialized()) it.value.close() else Unit62 }63 }64 val errors = extensions(spec).filterIsInstance<AfterSpecListener>().mapNotNull { ext ->65 runCatching { ext.afterSpec(spec) }66 .mapError { ExtensionException.AfterSpecException(it) }.exceptionOrNull()67 }68 return when {69 errors.isEmpty() -> Result.success(spec)70 errors.size == 1 -> Result.failure(errors.first())71 else -> Result.failure(MultipleExceptions(errors))72 }73 }74 suspend fun specInstantiated(spec: Spec) = runCatching {75 logger.log { Pair(spec::class.bestName(), "specInstantiated $spec") }76 registry.all().filterIsInstance<SpecInstantiationListener>().forEach { it.specInstantiated(spec) }77 registry.all().filterIsInstance<InstantiationListener>().forEach { it.specInstantiated(spec) }78 }79 suspend fun specInstantiationError(kclass: KClass<out Spec>, t: Throwable) = runCatching {80 logger.log { Pair(kclass.bestName(), "specInstantiationError $t") }81 registry.all().filterIsInstance<SpecInstantiationListener>().forEach { it.specInstantiationError(kclass, t) }82 registry.all().filterIsInstance<InstantiationErrorListener>().forEach { it.instantiationError(kclass, t) }83 }84 suspend fun prepareSpec(kclass: KClass<out Spec>): Result<KClass<*>> {85 val exts = registry.all().filterIsInstance<PrepareSpecListener>()86 logger.log { Pair(kclass.bestName(), "prepareSpec (${exts.size})") }87 val errors = exts.mapNotNull {88 runCatching { it.prepareSpec(kclass) }89 .mapError { ExtensionException.PrepareSpecException(it) }.exceptionOrNull()90 }91 return when {92 errors.isEmpty() -> Result.success(kclass)93 errors.size == 1 -> Result.failure(errors.first())94 else -> Result.failure(MultipleExceptions(errors))95 }96 }97 suspend fun finalizeSpec(98 kclass: KClass<out Spec>,99 results: Map<TestCase, TestResult>,100 t: Throwable?101 ): Result<KClass<out Spec>> {102 val exts = registry.all().filterIsInstance<FinalizeSpecListener>()103 logger.log { Pair(kclass.bestName(), "finishSpec (${exts.size}) results:$results") }104 val errors = exts.mapNotNull {105 runCatching { it.finalizeSpec(kclass, results) }106 .mapError { ExtensionException.FinalizeSpecException(it) }.exceptionOrNull()107 }108 return when {109 errors.isEmpty() -> Result.success(kclass)110 errors.size == 1 -> Result.failure(errors.first())111 else -> Result.failure(MultipleExceptions(errors))112 }113 }114 suspend fun <T> intercept(spec: Spec, f: suspend () -> T): T? {115 val exts = extensions(spec).filterIsInstance<SpecExtension>()116 logger.log { Pair(spec::class.bestName(), "Intercepting spec with ${exts.size} spec extensions") }117 var result: T? = null118 val initial: suspend () -> Unit = {119 result = f()120 }121 val chain = exts.foldRight(initial) { op, acc ->122 {123 op.intercept(spec::class) {124 op.intercept(spec) {125 acc()126 }127 }128 }129 }130 chain.invoke()131 return result132 }133 /​**134 * Notify all [IgnoredSpecListener]s that the given [kclass] has been ignored.135 */​136 suspend fun ignored(kclass: KClass<out Spec>, reason: String?): Result<KClass<out Spec>> {137 val exts = registry.all().filterIsInstance<IgnoredSpecListener>()138 logger.log { Pair(kclass.bestName(), "ignored ${exts.size} extensions on $kclass") }139 val errors = exts.mapNotNull {140 runCatching { it.ignoredSpec(kclass, reason) }141 .mapError { ExtensionException.IgnoredSpecException(it) }.exceptionOrNull()142 }143 return when {144 errors.isEmpty() -> Result.success(kclass)145 errors.size == 1 -> Result.failure(errors.first())146 else -> Result.failure(MultipleExceptions(errors))147 }148 }149}...

Full Screen

Full Screen

Result.mapError

Using AI Code Generation

copy

Full Screen

1fun <E, A> Result<E, A>.mapError(f: (E) -> E): Result<E, A> = when (this) {2is Failure -> Failure(f(e))3}4fun <E, A> Result<E, A>.mapError(f: (E) -> E): Result<E, A> = when (this) {5is Failure -> Failure(f(e))6}7fun <E, A> Result<E, A>.mapError(f: (E) -> E): Result<E, A> = when (this) {8is Failure -> Failure(f(e))9}10fun <E, A> Result<E, A>.mapError(f: (E) -> E): Result<E, A> = when (this) {11is Failure -> Failure(f(e))12}13fun <E, A> Result<E, A>.mapError(f: (E) -> E): Result<E, A> = when (this) {14is Failure -> Failure(f(e))15}16fun <E, A> Result<E, A>.mapError(f: (E) -> E): Result<E, A> = when (this) {17is Failure -> Failure(f(e))18}19fun <E, A> Result<E, A>.mapError(f: (E) -> E): Result<E, A> = when (this) {20is Failure -> Failure(f(e))21}22fun <E, A> Result<E, A>.mapError(f: (E) -> E): Result<E, A> = when (this) {23is Failure -> Failure(f(e))24}

Full Screen

Full Screen

Result.mapError

Using AI Code Generation

copy

Full Screen

1val result = Result.failure("error")2val mappedResult = result.mapError { "mapped $it" }3mappedResult shouldBe Result.failure("mapped error")4val result = Result.failure("error")5val mappedResult = result.mapError { "mapped $it" }6mappedResult shouldBe Result.failure("mapped error")7val result = Result.failure("error")8val mappedResult = result.mapError { "mapped $it" }9mappedResult shouldBe Result.failure("mapped error")10val result = Result.failure("error")11val mappedResult = result.mapError { "mapped $it" }12mappedResult shouldBe Result.failure("mapped error")13val result = Result.failure("error")14val mappedResult = result.mapError { "mapped $it" }15mappedResult shouldBe Result.failure("mapped error")16val result = Result.failure("error")17val mappedResult = result.mapError { "mapped $it" }18mappedResult shouldBe Result.failure("mapped error")19val result = Result.failure("error")20val mappedResult = result.mapError { "mapped $it" }21mappedResult shouldBe Result.failure("mapped error")22val result = Result.failure("error")23val mappedResult = result.mapError { "mapped $it" }24mappedResult shouldBe Result.failure("mapped error")25val result = Result.failure("error")26val mappedResult = result.mapError { "mapped $it" }27mappedResult shouldBe Result.failure("mapped error")28val result = Result.failure("error")29val mappedResult = result.mapError { "mapped $it" }30mappedResult shouldBe Result.failure("mapped error")31val result = Result.failure("error")32val mappedResult = result.mapError { "mapped

Full Screen

Full Screen

Result.mapError

Using AI Code Generation

copy

Full Screen

1val result = Result.failure ( "error" )2val mappedResult = result . mapError { it . length }3mappedResult . shouldBe ( Result . Failure ( 5 ))4val result = Result . success ( 5 )5val mappedResult = result . mapError { it . length }6mappedResult . shouldBe ( Result . Success ( 5 ))7val result = Result . failure ( "error" )8val mappedResult = result . mapError { it . length }9mappedResult . shouldBe ( Result . Failure ( 5 ))10val result = Result . success ( 5 )11val mappedResult = result . mapError { it . length }12mappedResult . shouldBe ( Result . Success ( 5 ))13val result = Result . failure ( "error" )14val mappedResult = result . mapError { it . length }15mappedResult . shouldBe ( Result . Failure ( 5 ))16val result = Result . success ( 5 )17val mappedResult = result . mapError { it . length }18mappedResult . shouldBe ( Result . Success ( 5 ))19val result = Result . failure ( "error" )20val mappedResult = result . mapError { it . length }21mappedResult . shouldBe ( Result . Failure ( 5 ))22val result = Result . success ( 5 )23val mappedResult = result . mapError { it . length }24mappedResult . shouldBe ( Result . Success ( 5 ))25val result = Result . failure ( "error" )26val mappedResult = result . mapError { it . length }27mappedResult . shouldBe ( Result . Failure ( 5 ))28val result = Result . success ( 5 )29val mappedResult = result . mapError { it . length }

Full Screen

Full Screen

Result.mapError

Using AI Code Generation

copy

Full Screen

1 Result.success(1).mapError { "failed" } shouldBe Result.success(1)2 Result.failure("failed").mapError { "failed again" } shouldBe Result.failure("failed again")3 Result.success(1).mapError { "failed" } shouldBe Result.success(1)4 Result.failure("failed").mapError { "failed again" } shouldBe Result.failure("failed again")5 Result.success(1).mapError { "failed" } shouldBe Result.success(1)6 Result.failure("failed").mapError { "failed again" } shouldBe Result.failure("failed again")7 Result.success(1).mapError { "failed" } shouldBe Result.success(1)8 Result.failure("failed").mapError { "failed again" } shouldBe Result.failure("failed again")9 Result.success(1).mapError { "failed" } shouldBe Result.success(1)10 Result.failure("failed").mapError { "failed again" } shouldBe Result.failure("failed again")11 Result.success(1).mapError { "failed" } shouldBe Result.success(1)12 Result.failure("failed").mapError { "failed again" } shouldBe Result.failure("failed again")13 Result.success(1).mapError { "failed" } shouldBe Result.success(1)14 Result.failure("failed").mapError { "failed again" } shouldBe Result.failure("failed again")

Full Screen

Full Screen

Blogs

Check out the latest blogs from LambdaTest on this topic:

How To Get Started With Cypress Debugging

One of the most important tasks of a software developer is not just writing code fast; it is the ability to find what causes errors and bugs whenever you encounter one and the ability to solve them quickly.

A Complete Guide To CSS Container Queries

In 2007, Steve Jobs launched the first iPhone, which revolutionized the world. But because of that, many businesses dealt with the problem of changing the layout of websites from desktop to mobile by delivering completely different mobile-compatible websites under the subdomain of ‘m’ (e.g., https://m.facebook.com). And we were all trying to figure out how to work in this new world of contending with mobile and desktop screen sizes.

Project Goal Prioritization in Context of Your Organization&#8217;s Strategic Objectives

One of the most important skills for leaders to have is the ability to prioritize. To understand how we can organize all of the tasks that must be completed in order to complete a project, we must first understand the business we are in, particularly the project goals. There might be several project drivers that stimulate project execution and motivate a company to allocate the appropriate funding.

How to increase and maintain team motivation

The best agile teams are built from people who work together as one unit, where each team member has both the technical and the personal skills to allow the team to become self-organized, cross-functional, and self-motivated. These are all big words that I hear in almost every agile project. Still, the criteria to make a fantastic agile team are practically impossible to achieve without one major factor: motivation towards a common goal.

Introducing LambdaTest Analytics: Test Reporting Made Awesome ????

Collecting and examining data from multiple sources can be a tedious process. The digital world is constantly evolving. To stay competitive in this fast-paced environment, businesses must frequently test their products and services. While it’s easy to collect raw data from multiple sources, it’s far more complex to interpret it properly.

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.

LambdaTest Learning Hubs:

YouTube

You could also refer to video tutorials over LambdaTest YouTube channel to get step by step demonstration from industry experts.

Run Kotest automation tests on LambdaTest cloud grid

Perform automation testing on 3000+ real desktop and mobile devices online.

Most used method in results

Try LambdaTest Now !!

Get 100 minutes of automation test minutes FREE!!

Next-Gen App & Browser Testing Cloud

Was this article helpful?

Helpful

NotHelpful