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

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


Source:ErrorCollector.kt Github


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1package io.kotest.assertions2import io.kotest.mpp.stacktraces3val errorCollector: ErrorCollector = BasicErrorCollector()4enum class ErrorCollectionMode {5 Soft, Hard6}7interface ErrorCollector {8 fun getCollectionMode(): ErrorCollectionMode9 fun setCollectionMode(mode: ErrorCollectionMode)10 /**11 * Returns the errors accumulated in the current context.12 */13 fun errors(): List<Throwable>14 /**15 * Adds the given error to the current context.16 */17 fun pushError(t: Throwable)18 /**19 * Clears all errors from the current context.20 */21 fun clear()22 fun pushClue(clue: Any)23 fun popClue()24 /**25 * Returns the current clue context.26 * That is all the clues nested to this point.27 */28 fun clueContext(): List<Any>29}30open class BasicErrorCollector : ErrorCollector {31 private val failures = mutableListOf<Throwable>()32 private var mode = ErrorCollectionMode.Hard33 private val clues = mutableListOf<Any>()34 override fun getCollectionMode(): ErrorCollectionMode = mode35 override fun setCollectionMode(mode: ErrorCollectionMode) {36 this.mode = mode37 }38 override fun pushClue(clue: Any) {39 clues.add(0, clue)40 }41 override fun popClue() {42 clues.removeAt(0)43 }44 override fun clueContext(): List<Any> = clues.toList()45 override fun pushError(t: Throwable) {46 failures.add(t)47 }48 override fun errors(): List<Throwable> = failures.toList()49 override fun clear() = failures.clear()50}51fun clueContextAsString() = errorCollector.clueContext().let {52 if (it.isEmpty()) "" else it.joinToString("\n", postfix = "\n")53}54/**55 * If we are in "soft assertion mode" will add this throwable to the56 * list of throwables for the current execution. Otherwise will57 * throw immediately.58 */59fun ErrorCollector.collectOrThrow(error: Throwable) {60 when (getCollectionMode()) {61 ErrorCollectionMode.Soft -> pushError(error)62 ErrorCollectionMode.Hard -> throw error63 }64}65/**66 * The errors for the current execution are thrown as a single67 * throwable.68 */69fun ErrorCollector.throwCollectedErrors() {70 // set the collection mode back to the default71 setCollectionMode(ErrorCollectionMode.Hard)72 val failures = errors()73 clear()74 if (failures.isNotEmpty()) {75 val t = if (failures.size == 1) failures[0] else MultiAssertionError(failures)76 stacktraces.cleanStackTrace(t)77 throw t78 }79}...

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1import io.kotest.assertions.BasicErrorCollector2val errorCollector = BasicErrorCollector()3try {4} catch (e: Throwable) {5errorCollector.add(e)6}

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