我开始使用Kotest在Kotlin中进行单元测试。我使用以下以某种方式与Kotest集成的技术:
在gradle中,我包括以下依赖项:
io.kotest:kotest-runner-junit5:$kotest_version
:Kotest框架io.kotest:kotest-assertions-core:$kotest_version
:Kotest核心JVM断言io.kotest:kotest-property:$kotest_version
:Kotest属性测试io.kotest:kotest-extensions-allure:$kotest_version
:魅力io.kotest:kotest-plugins-pitest:$kotest_version
:Pitest插件现在的问题是,当我通过gradle
:test
任务运行测试时,出现以下异常:java.lang.IllegalArgumentException: Received a failure event for test with unknown id '2.27'. Registered test ids: '[2.1, :test, 2.25]'
未知ID /已注册ID在每次测试运行中都不同。实际上出现了很多错误,但是那是最后一个出现的错误。以下是完整的gradle输出(缩短了内部调用):Testing started at 18:39 ...
> Task :kaptGenerateStubsKotlin UP-TO-DATE
> Task :kaptKotlin UP-TO-DATE
> Task :compileKotlin UP-TO-DATE
> Task :compileJava NO-SOURCE
> Task :processResources UP-TO-DATE
> Task :classes UP-TO-DATE
> Task :kaptGenerateStubsTestKotlin UP-TO-DATE
> Task :kaptTestKotlin UP-TO-DATE
> Task :compileTestKotlin UP-TO-DATE
> Task :preTest
> Task :compileTestJava NO-SOURCE
> Task :processTestResources UP-TO-DATE
> Task :testClasses UP-TO-DATE
> Task :test
~~~ Kotest Configuration ~~~
-> Parallelization factor: 1
-> Default test timeout: 600000ms
-> Default test order: Sequential
-> Default isolation mode: SingleInstance
-> Global soft assertations: False
-> Write spec failure file: False
-> Fail on ignored tests: False
-> Spec execution order: SpecExecutionOrder
-> Extensions
- io.kotest.engine.extensions.SystemPropertyTagExtension
- io.kotest.core.extensions.RuntimeTagExtension
- io.kotest.engine.extensions.RuntimeTagExpressionExtension
-> Listeners
- io.kotest.extensions.allure.AllureTestReporter
- class io.kotest.engine.config.LoadConfigFromClasspathKt$toDetectedConfig$beforeAfterAllListener$1
Nov. 04, 2020 6:39:48 NACHM. org.junit.platform.launcher.core.TestExecutionListenerRegistry lambda$notifyEach$1
WARNING: TestExecutionListener [org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestExecutionListener] threw exception for method: executionFinished(TestIdentifier [uniqueId = '[engine:kotest]/[spec:com.example.core.common.JSONFileTests]/[test:Writing to and reading from file should result in the original value]', parentId = '[engine:kotest]/[spec:com.example.core.common.JSONFileTests]', displayName = 'Writing to and reading from file should result in the original value', legacyReportingName = 'Writing to and reading from file should result in the original value', source = FileSource [file = D:\dev\Minecraft Server Watcher\msw-server\JSONFileTests.kt, filePosition = FilePosition [line = 40, column = -1]], tags = [], type = TEST], TestExecutionResult [status = FAILED, throwable = java.time.temporal.UnsupportedTemporalTypeException: Unsupported field: OffsetSeconds])
java.lang.AssertionError <3 internal calls>
at jdk.internal.reflect.GeneratedMethodAccessor29.invoke(Unknown Source) <11 internal calls>
at java.base/java.util.ArrayList.forEach(ArrayList.java:1540) <17 internal calls>
at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:56)
at kotlinx.coroutines.EventLoopImplBase.processNextEvent(EventLoop.common.kt:274)
at kotlinx.coroutines.BlockingCoroutine.joinBlocking(Builders.kt:84)
at kotlinx.coroutines.BuildersKt__BuildersKt.runBlocking(Builders.kt:59)
at kotlinx.coroutines.BuildersKt.runBlocking(Unknown Source)
at kotlinx.coroutines.BuildersKt__BuildersKt.runBlocking$default(Builders.kt:38)
at kotlinx.coroutines.BuildersKt.runBlocking$default(Unknown Source) <5 internal calls>
Nov. 04, 2020 6:39:48 NACHM. org.junit.platform.launcher.core.TestExecutionListenerRegistry lambda$notifyEach$1
WARNING: TestExecutionListener [org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestExecutionListener] threw exception for method: executionFinished(TestIdentifier [uniqueId = '[engine:kotest]/[spec:com.example.core.common.JSONFileTests]/[test:Writing to and reading from file should result in the original value]', parentId = '[engine:kotest]/[spec:com.example.core.common.JSONFileTests]', displayName = 'Writing to and reading from file should result in the original value', legacyReportingName = 'Writing to and reading from file should result in the original value', source = FileSource [file = D:\dev\Minecraft Server Watcher\msw-server\JSONFileTests.kt, filePosition = FilePosition [line = 40, column = -1]], tags = [], type = TEST], TestExecutionResult [status = FAILED, throwable = java.time.temporal.UnsupportedTemporalTypeException: Unsupported field: OffsetSeconds])
java.lang.AssertionError <3 internal calls>
at jdk.internal.reflect.GeneratedMethodAccessor29.invoke(Unknown Source) <11 internal calls>
at java.base/java.util.ArrayList.forEach(ArrayList.java:1540) <17 internal calls>
at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:56)
at kotlinx.coroutines.EventLoopImplBase.processNextEvent(EventLoop.common.kt:274)
at kotlinx.coroutines.BlockingCoroutine.joinBlocking(Builders.kt:84)
at kotlinx.coroutines.BuildersKt__BuildersKt.runBlocking(Builders.kt:59)
at kotlinx.coroutines.BuildersKt.runBlocking(Unknown Source)
at kotlinx.coroutines.BuildersKt__BuildersKt.runBlocking$default(Builders.kt:38)
at kotlinx.coroutines.BuildersKt.runBlocking$default(Unknown Source) <5 internal calls>
at java.base/java.lang.Thread.run(Thread.java:834)
Nov. 04, 2020 6:39:48 NACHM. org.junit.platform.launcher.core.TestExecutionListenerRegistry lambda$notifyEach$1
WARNING: TestExecutionListener [org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestExecutionListener] threw exception for method: executionFinished(TestIdentifier [uniqueId = '[engine:kotest]/[spec:com.example.core.common.JSONFileTests]/[test:Writing to and reading from file should result in the original value]', parentId = '[engine:kotest]/[spec:com.example.core.common.JSONFileTests]', displayName = 'Writing to and reading from file should result in the original value', legacyReportingName = 'Writing to and reading from file should result in the original value', source = FileSource [file = D:\dev\Minecraft Server Watcher\msw-server\JSONFileTests.kt, filePosition = FilePosition [line = 40, column = -1]], tags = [], type = TEST], TestExecutionResult [status = SUCCESSFUL, throwable = null])
java.lang.AssertionError <3 internal calls>
at jdk.internal.reflect.GeneratedMethodAccessor29.invoke(Unknown Source) <11 internal calls>
at java.base/java.util.ArrayList.forEach(ArrayList.java:1540) <17 internal calls>
at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:56)
at kotlinx.coroutines.EventLoopImplBase.processNextEvent(EventLoop.common.kt:274)
at kotlinx.coroutines.BlockingCoroutine.joinBlocking(Builders.kt:84)
at kotlinx.coroutines.BuildersKt__BuildersKt.runBlocking(Builders.kt:59)
at kotlinx.coroutines.BuildersKt.runBlocking(Unknown Source)
at kotlinx.coroutines.BuildersKt__BuildersKt.runBlocking$default(Builders.kt:38)
at kotlinx.coroutines.BuildersKt.runBlocking$default(Unknown Source) <5 internal calls>
at java.base/java.lang.Thread.run(Thread.java:834)
Nov. 04, 2020 6:39:48 NACHM. org.junit.platform.launcher.core.TestExecutionListenerRegistry lambda$notifyEach$1
WARNING: TestExecutionListener [org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestExecutionListener] threw exception for method: executionFinished(TestIdentifier [uniqueId = '[engine:kotest]/[spec:com.example.core.common.JSONFileTests]/[test:Writing to and reading from file should result in the original value]', parentId = '[engine:kotest]/[spec:com.example.core.common.JSONFileTests]', displayName = 'Writing to and reading from file should result in the original value', legacyReportingName = 'Writing to and reading from file should result in the original value', source = FileSource [file = D:\dev\Minecraft Server Watcher\msw-server\JSONFileTests.kt, filePosition = FilePosition [line = 40, column = -1]], tags = [], type = TEST], TestExecutionResult [status = SUCCESSFUL, throwable = null])
java.lang.AssertionError <3 internal calls>
at jdk.internal.reflect.GeneratedMethodAccessor29.invoke(Unknown Source) <11 internal calls>
at java.base/java.util.ArrayList.forEach(ArrayList.java:1540) <17 internal calls>
at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:56)
at kotlinx.coroutines.EventLoopImplBase.processNextEvent(EventLoop.common.kt:274)
at kotlinx.coroutines.BlockingCoroutine.joinBlocking(Builders.kt:84)
at kotlinx.coroutines.BuildersKt__BuildersKt.runBlocking(Builders.kt:59)
at kotlinx.coroutines.BuildersKt.runBlocking(Unknown Source)
at kotlinx.coroutines.BuildersKt__BuildersKt.runBlocking$default(Builders.kt:38)
at kotlinx.coroutines.BuildersKt.runBlocking$default(Unknown Source) <5 internal calls>
at java.base/java.lang.Thread.run(Thread.java:834)
Nov. 04, 2020 6:39:48 NACHM. org.junit.platform.launcher.core.TestExecutionListenerRegistry lambda$notifyEach$1
WARNING: TestExecutionListener [org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestExecutionListener] threw exception for method: executionFinished(TestIdentifier [uniqueId = '[engine:kotest]/[spec:com.example.core.common.JSONFileTests]/[test:Writing to and reading from file should result in the original value]', parentId = '[engine:kotest]/[spec:com.example.core.common.JSONFileTests]', displayName = 'Writing to and reading from file should result in the original value', legacyReportingName = 'Writing to and reading from file should result in the original value', source = FileSource [file = D:\dev\Minecraft Server Watcher\msw-server\JSONFileTests.kt, filePosition = FilePosition [line = 40, column = -1]], tags = [], type = TEST], TestExecutionResult [status = SUCCESSFUL, throwable = null])
java.lang.AssertionError <3 internal calls>
at jdk.internal.reflect.GeneratedMethodAccessor29.invoke(Unknown Source) <11 internal calls>
at java.base/java.util.ArrayList.forEach(ArrayList.java:1540) <17 internal calls>
at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:56)
at kotlinx.coroutines.EventLoopImplBase.processNextEvent(EventLoop.common.kt:274)
at kotlinx.coroutines.BlockingCoroutine.joinBlocking(Builders.kt:84)
at kotlinx.coroutines.BuildersKt__BuildersKt.runBlocking(Builders.kt:59)
at kotlinx.coroutines.BuildersKt.runBlocking(Unknown Source)
at kotlinx.coroutines.BuildersKt__BuildersKt.runBlocking$default(Builders.kt:38)
at kotlinx.coroutines.BuildersKt.runBlocking$default(Unknown Source) <5 internal calls>
at java.base/java.lang.Thread.run(Thread.java:834)
Received a failure event for test with unknown id '2.27'. Registered test ids: '[2.1, :test, 2.25]'
java.lang.IllegalArgumentException: Received a failure event for test with unknown id '2.27'. Registered test ids: '[2.1, :test, 2.25]' <19 internal calls>
at java.base/java.lang.Thread.run(Thread.java:834)
> Task :test FAILED
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':test'.
> Received a failure event for test with unknown id '2.27'. Registered test ids: '[2.1, :test, 2.25]'
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
* Get more help at https://help.gradle.org
BUILD FAILED in 5s
10 actionable tasks: 2 executed, 8 up-to-date
可能相关的内容:1.我在
build.gradle.kts
中使用自定义任务配置我的
build.gradle.kts
文件的以下部分涵盖了所有与测试相关的内容,包括一个设置测试环境的任务,以及随后要清理的第二个任务:tasks.withType<Test> {
useJUnitPlatform()
}
allure {
autoconfigure = false
version = "2.13.6"
}
configure<PitestPluginExtension> {
testPlugin.set("Kotest")
targetClasses.set(listOf("com.example.*"))
}
val testDir1Path = "/src/test/resources/DirectoryTest"
val testDir2Path = "/src/test/resources/Create"
tasks.register("preTest") {
doLast {
mkdir(testDir1Path)
file("$testDir1Path/json00.json").apply { createNewFile() }.writeText("{ \"s\": \"s\", \"i\": 0, \"b\": true}")
file("$testDir1Path/json01.json").apply { createNewFile() }.writeText("{}")
file("$testDir1Path/json02.json").apply { createNewFile() }.writeText("{}")
file("$testDir1Path/json03.json").apply { createNewFile() }.writeText("{}")
file("$testDir1Path/json04.json").apply { createNewFile() }.writeText("{}")
file("$testDir1Path/json05.json").apply { createNewFile() }.writeText("{}")
file("$testDir1Path/json06.json").apply { createNewFile() }.writeText("{}")
}
}
tasks.register<Delete>("postTest") {
for (task in tasks.withType<Test>()) {
mustRunAfter(task)
}
delete(testDir1Path)
delete(testDir2Path)
delete("/src/test/resources/NonExistent") // might be created by :pitest
}
tasks.withType<Test>().configureEach {
dependsOn("preTest")
}
2.首先导致错误的测试套件当我在下面的Kotest测试类中工作时,发生了错误,更准确地说,是在我尝试实现Test Factory并将其包括在内之后发生的错误:
class JSONFileTests : FunSpec({
test("Loading a file into the model JSONModel01 should work") {
shouldNotThrowAny {
JSONFile("$exists/json00.json", JSONModel01.serializer())
}.get() shouldBe JSONModel01("s", 0, true)
}
include("JSONModel01: ", echoTests(m1))
include("JSONModel02: ", echoTests(m2))
include("JSONModel03: ", echoTests(m3))
include("JSONModel04: ", echoTests(m4))
include("JSONModel05: ", echoTests(m5))
include("JSONModel06: ", echoTests(m6))
}) {
companion object {
private val m1 = JSONFile("$exists/json01.json", JSONModel01.serializer()) to JSONModel01()
private val m2 = JSONFile("$exists/json02.json", JSONModel02.serializer()) to JSONModel02()
private val m3 = JSONFile("$exists/json03.json", JSONModel03.serializer()) to JSONModel03()
private val m4 = JSONFile("$exists/json04.json", JSONModel04.serializer()) to JSONModel04()
private val m5 = JSONFile("$exists/json05.json", JSONModel05.serializer()) to JSONModel05()
private val m6 = JSONFile("$exists/json06.json", JSONModel06.serializer()) to JSONModel06()
private fun cleanupAll() {
m1.first.reload()
m2.first.reload()
m3.first.reload()
m4.first.reload()
m5.first.reload()
m6.first.reload()
}
private fun <T : JSONModelMarker> echoTests(model: Pair<JSONFile<T>, T>) = funSpec {
test("Writing to and reading from file should result in the original value") {
model.first.apply { setAndCommit(model.second) }.get() shouldBe model.second
model.first.reload()
}
}
}
}
所有JSONModelXX
类都是仅用于测试的模型数据类。 JSONModelMarker
是由所有JSONModelXX
类实现的标记接口(interface)。 JSONFile<T>
是我要测试的类。3. IntelliJ通知
我总是从IntelliJ收到“所有测试成功”的通知,但是当我查看测试工具窗口时,由于gradle任务
:test
失败,测试被标记为“失败”。我不知道这是怎么回事。4.我有时还会收到其他异常
如果仅通过IntelliJ装订线图标运行测试套件中的第一个测试,则会得到另一个异常:
java.lang.ExceptionInInitializerError
。我进行了一些挖掘,发现用于读取Scanner
类中JSON文件内容的JSONFile<T>
会引发NoSuchElementException
,因为(出于某种原因)该文件仅在执行此测试期间为空。这很奇怪,因为我的:preTest
中的自定义build.gradle.kts
任务实际上在每个文件中写入了一些内容,而当我在:preTest
或:test
运行之后查看这些文件时,这些内容实际上就在那里。这是完整的控制台输出:java.lang.ExceptionInInitializerError
java.lang.ExceptionInInitializerError
at java.base/java.lang.Class.forName0(Native Method)
at java.base/java.lang.Class.forName(Class.java:315)
at io.kotest.engine.launcher.ExecuteKt$execute$1.invokeSuspend(execute.kt:37)
at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
at kotlin.coroutines.ContinuationKt.startCoroutine(Continuation.kt:115)
at io.kotest.engine.launcher.ExecuteKt.future(execute.kt:89)
at io.kotest.engine.launcher.ExecuteKt.execute(execute.kt:34)
at io.kotest.engine.launcher.MainKt.main(main.kt:12)
Caused by: java.util.NoSuchElementException
at java.base/java.util.Scanner.throwFor(Scanner.java:937)
at java.base/java.util.Scanner.next(Scanner.java:1478)
at com.example.core.common.JSONFile$Companion.readFile(JSONFile.kt:14)
at com.example.core.common.JSONFile$Companion.access$readFile(JSONFile.kt:11)
at com.example.core.common.JSONFile.<init>(JSONFile.kt:27)
at com.example.core.common.JSONFileTests.<clinit>(JSONFileTests.kt:24)
... 8 more
Process finished with exit code 0
[java.lang.ExceptionInInitializerError]
现在,我不知道这是问题的一部分还是单独的问题,但只是为了确保我想将其包括在此处。当我在File-> Settings-> Build,Execution,Deployment-> Build Tools-> Gradle中将测试运行程序切换到IntelliJ IDEA时,会发生相同的问题而已!现在我的问题是:是什么导致此错误,我该如何解决?
与运行
最佳答案
好像我找到了解决方案。
问题似乎是Kotest(以及后来的JUnit)想要唯一的测试,这意味着唯一的测试名称。通常,这些问题将由Kotest IntelliJ插件来标记。但是,如果使用测试工厂,则情况会变得更加不透明。我以为include(prefix, testFactory)
将prefix
添加到测试名称中,但事实并非如此。这意味着工厂方法
private fun <T : JSONModelMarker> echoTests(model: Pair<JSONFile<T>, T>) = funSpec {
test("Writing to and reading from file should result in the original value") {
model.first.apply { setAndCommit(model.second) }.get() shouldBe model.second
model.first.reload()
}
}
实际上每次调用时都会创建带有固定标识符的测试。现在,当我通过include()
多次包含此测试工厂时,我实际上创建了重复的测试,然后使测试任务崩溃。为了解决这个问题,我刚刚实现了一种功能来替代测试名称,如下所示:private fun <T : JSONModelMarker> echoTests(name: String, model: Pair<JSONFile<T>, T>) = funSpec {
test("$name: Writing to and reading from file should result in the original value") {
model.first.apply { setAndCommit(model.second) }.get() shouldBe model.second
model.first.reload()
}
}
现在,当我调用include()
方法时,我省略了前缀(因为它不相关),并向工厂方法调用添加了唯一的名称(以前是前缀):include(echoTests("JSONModel01", m1))
执行完此操作后,该错误不再发生。关于unit-testing - Kotest使用java.lang.IllegalArgumentException中断了gradle的:test任务:收到了ID未知的测试失败事件,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/64685933/