How to use ErrorCollector.collectiveError method of io.kotest.assertions.BasicErrorCollector class

Best Kotest code snippet using io.kotest.assertions.BasicErrorCollector.ErrorCollector.collectiveError

ErrorCollector.kt

Source:ErrorCollector.kt Github

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1package io.kotest.assertions2import io.kotest.mpp.stacktraces3expect val errorCollector: ErrorCollector4/**5 * Specifies an assertion mode:6 * - Hard: assertion errors are thrown immediately7 * - Soft: assertion errors are collected and throw together8 */9enum class ErrorCollectionMode {10 Soft, Hard11}12typealias Clue = () -> String13interface ErrorCollector {14 fun getCollectionMode(): ErrorCollectionMode15 fun setCollectionMode(mode: ErrorCollectionMode)16 /**17 * Returns the errors accumulated in the current context.18 */19 fun errors(): List<Throwable>20 /**21 * Adds the given error to the current context.22 */23 fun pushError(t: Throwable)24 /**25 * Clears all errors from the current context.26 */27 fun clear()28 fun pushClue(clue: Clue)29 fun popClue()30 /**31 * Returns the current clue context.32 * That is all the clues nested to this point.33 */34 fun clueContext(): List<Clue>35}36object NoopErrorCollector : ErrorCollector {37 override fun getCollectionMode(): ErrorCollectionMode = ErrorCollectionMode.Hard38 override fun setCollectionMode(mode: ErrorCollectionMode) {39 }40 override fun errors(): List<Throwable> = emptyList()41 override fun pushError(t: Throwable) {42 }43 override fun clear() {44 }45 override fun pushClue(clue: Clue) {46 }47 override fun popClue() {48 }49 override fun clueContext(): List<Clue> = emptyList()50}51open class BasicErrorCollector : ErrorCollector {52 protected val failures = mutableListOf<Throwable>()53 protected var mode = ErrorCollectionMode.Hard54 protected val clues = mutableListOf<Clue>()55 override fun getCollectionMode(): ErrorCollectionMode = mode56 override fun setCollectionMode(mode: ErrorCollectionMode) {57 this.mode = mode58 }59 override fun pushClue(clue: Clue) {60 clues.add(0, clue)61 }62 override fun popClue() {63 clues.removeAt(0)64 }65 override fun clueContext(): List<Clue> = clues.reversed()66 override fun pushError(t: Throwable) {67 failures.add(t)68 }69 override fun errors(): List<Throwable> = failures.toList()70 override fun clear() = failures.clear()71}72internal fun ErrorCollector.getAndReplace(errors: Collection<Throwable>): List<Throwable> {73 val old = errors()74 clear()75 errors.forEach { pushError(it) }76 return old77}78fun clueContextAsString() = errorCollector.clueContext().let {79 if (it.isEmpty()) "" else it.joinToString("\n", postfix = "\n") { f -> f.invoke() }80}81/**82 * If we are in "soft assertion mode" will add this throwable to the83 * list of throwables for the current execution. Otherwise will84 * throw immediately.85 */86fun ErrorCollector.collectOrThrow(error: Throwable) {87 when (getCollectionMode()) {88 ErrorCollectionMode.Soft -> pushError(error)89 ErrorCollectionMode.Hard -> throw error90 }91}92fun ErrorCollector.pushErrors(errors: Collection<Throwable>) {93 errors.forEach {94 pushError(it)95 }96}97fun ErrorCollector.collectOrThrow(errors: Collection<Throwable>) {98 pushErrors(errors)99 if (getCollectionMode() == ErrorCollectionMode.Hard) {100 throwCollectedErrors()101 }102}103/**104 * All errors currently collected in the [ErrorCollector] are throw as a single [MultiAssertionError].105 */106fun ErrorCollector.throwCollectedErrors() {107 collectiveError()?.let { throw it }108}109/**110 * All errors currently collected in the [ErrorCollector] are returned as a single [MultiAssertionError].111 */112fun ErrorCollector.collectiveError(): AssertionError? {113 val failures = errors()114 clear()115 return if (failures.isNotEmpty()) {116 if (failures.size == 1) {117 AssertionError(failures[0].message).also {118 stacktraces.cleanStackTrace(it)119 }120 } else {121 MultiAssertionError(failures).also {122 stacktraces.cleanStackTrace(it) // cleans the creation of MultiAssertionError123 }124 }125 } else null126}127inline fun <reified T> ErrorCollector.runWithMode(mode: ErrorCollectionMode, block: () -> T): T =128 getCollectionMode().let { original ->129 setCollectionMode(mode)130 try {131 block()132 } finally {133 setCollectionMode(original)134 }135 }...

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ErrorCollector.collectiveError

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1fun <T> T.shouldBe(expected: T, message: String? = null) = this shouldBe expected2fun <T> T.shouldNotBe(expected: T, message: String? = null) = this shouldNotBe expected3fun <T> T.shouldBeNull(message: String? = null) = this shouldBe null4fun <T> T.shouldNotBeNull(message: String? = null) = this shouldNotBe null5fun <T> T.shouldBeSameInstanceAs(expected: T, message: String? = null) = this shouldBeSameInstanceAs expected6fun <T> T.shouldNotBeSameInstanceAs(expected: T, message: String? = null) = this shouldNotBeSameInstanceAs expected7fun <T> T.shouldBeInstanceOf(expected: Class<*>, message: String? = null) = this shouldBeInstanceOf expected8fun <T> T.shouldNotBeInstanceOf(expected: Class<*>, message: String? = null) = this shouldNotBeInstanceOf expected9fun <T> T.shouldBeOneOf(vararg values: T, message: String? = null) = this shouldBeOneOf values10fun <T> T.shouldNotBeOneOf(vararg values: T, message: String? = null) = this shouldNotBeOneOf values11fun <T> T.shouldBeIn(vararg values: T, message: String? = null) = this shouldBeIn values12fun <T> T.shouldNotBeIn(vararg values: T, message: String? = null) = this shouldNotBeIn values13fun <T> T.shouldBeIn(values: Iterable<T>, message: String? = null) = this shouldBeIn values14fun <T> T.shouldNotBeIn(values: Iterable<T>, message: String? = null) = this shouldNotBeIn values15fun <T> T.shouldBeIn(values: Sequence<T>, message: String? = null) = this shouldBeIn values16fun <T> T.shouldNotBeIn(values: Sequence<T>, message: String? = null) = this shouldNotBeIn values17fun <T> T.shouldBeIn(values: Array<T>, message: String? = null) = this shouldBeIn values18fun <T> T.shouldNotBeIn(values: Array<T>, message: String? = null) = this shouldNotBeIn values

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ErrorCollector.collectiveError

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1fun <T> errorCollector(2f: ErrorCollector.() -> T3): T {4val collector = BasicErrorCollector()5val result = collector.f()6collector.throwCollectedErrors()7}8test("test1") {9errorCollector("test1") {10}11}12fun <T> errorCollector(13f: ErrorCollector.() -> T14): T {15val collector = BasicErrorCollector()16val result = collector.f()17collector.throwCollectedErrors()18}19test("test1") {20errorCollector("test1") {21}22}23fun <T> errorCollector(24f: ErrorCollector.() -> T25): T {26val collector = BasicErrorCollector()27val result = collector.f()28collector.throwCollectedErrors()29}30test("test1") {31errorCollector("test1") {32}33}34fun <T> errorCollector(35f: ErrorCollector.() -> T36): T {37val collector = BasicErrorCollector()38val result = collector.f()39collector.throwCollectedErrors()40}41test("test1") {42errorCollector("test1") {

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ErrorCollector.collectiveError

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1fun testMultipleConditions() {2 ErrorCollector.collectiveError {3 }4}5fun testMultipleConditions() {6 ErrorCollector.collectiveError {7 }8}9fun testMultipleConditions() {10 ErrorCollector.collectiveError {11 }12}13fun testMultipleConditions() {14 ErrorCollector.collectiveError {15 }16}17fun testMultipleConditions() {18 ErrorCollector.collectiveError {19 }20}21fun testMultipleConditions() {22 ErrorCollector.collectiveError {

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ErrorCollector.collectiveError

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1@Disabled("Disabled to avoid CI failure")2class ErrorCollectorTest : FunSpec({3 test("collect all errors and throw them at once") {4 val errorCollector = BasicErrorCollector()5 errorCollector.collectiveError("Error 1")6 errorCollector.collectiveError("Error 2")7 errorCollector.collectiveError("Error 3")8 errorCollector.assertAll()9 }10})11@Disabled("Disabled to avoid CI failure")12class ErrorCollectorTest : FunSpec({13 test("collect errors from multiple places and throw them at once") {14 val errorCollector = BasicErrorCollector()15 val errorCollector2 = BasicErrorCollector()16 errorCollector.collectiveError("Error 1")17 errorCollector2.collectiveError("Error 2")18 errorCollector.collectiveError("Error 3")19 errorCollector.assertAll()20 errorCollector2.assertAll()21 }22})23@Disabled("Disabled to avoid CI failure")24class AssertionsTest : FunSpec({25 test("basic assertions") {26 assertEquals(1, 1)27 }28})

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