LightPlatformTestCase's project property triggers a NullPointerException
Answered
I'm working on a Jetbrains plugin and I'm trying to write some integration tests, but the project property in LightPlatformTestCase's seems to always be null.
package dev.sweep.assistant
import com.intellij.testFramework.LightPlatformTestCase
import org.junit.jupiter.api.Test
class HappyPathTest : LightPlatformTestCase() {
@Test
fun testRender() {
println(project!!)
}
}
I would get
java.lang.NullPointerException
at dev.sweep.assistant.HappyPathTest.testRender(HappyPathTest.kt:9)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
at java.base/java.lang.reflect.Method.invoke(Method.java:580)
at org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:727)
at org.junit.jupiter.engine.execution.MethodInvocation.proceed(MethodInvocation.java:60)
at org.junit.jupiter.engine.execution.InvocationInterceptorChain$ValidatingInvocation.proceed(InvocationInterceptorChain.java:131)
at org.junit.jupiter.engine.extension.TimeoutExtension.intercept(TimeoutExtension.java:156)
at org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestableMethod(TimeoutExtension.java:147)
at org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestMethod(TimeoutExtension.java:86)
at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker$ReflectiveInterceptorCall.lambda$ofVoidMethod$0(InterceptingExecutableInvoker.java:103)
at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.lambda$invoke$0(InterceptingExecutableInvoker.java:93)
at org.junit.jupiter.engine.execution.InvocationInterceptorChain$InterceptedInvocation.proceed(InvocationInterceptorChain.java:106)
at org.junit.jupiter.engine.execution.InvocationInterceptorChain.proceed(InvocationInterceptorChain.java:64)
at org.junit.jupiter.engine.execution.InvocationInterceptorChain.chainAndInvoke(InvocationInterceptorChain.java:45)
at org.junit.jupiter.engine.execution.InvocationInterceptorChain.invoke(InvocationInterceptorChain.java:37)
at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.invoke(InterceptingExecutableInvoker.java:92)
at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.invoke(InterceptingExecutableInvoker.java:86)
at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeTestMethod$7(TestMethodTestDescriptor.java:217)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeTestMethod(TestMethodTestDescriptor.java:213)
at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:138)
at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:68)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:151)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)
at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)
at java.base/java.util.ArrayList.forEach(ArrayList.java:1596)
at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)
at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)
at java.base/java.util.ArrayList.forEach(ArrayList.java:1596)
at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)
at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)
at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:35)
at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57)
at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:54)
at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:107)
at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:88)
at org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:54)
at org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:67)
at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:52)
at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:114)
at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:86)
at org.junit.platform.launcher.core.DefaultLauncherSession$DelegatingLauncher.execute(DefaultLauncherSession.java:86)
at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.processAllTestClasses(JUnitPlatformTestClassProcessor.java:124)
at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.access$000(JUnitPlatformTestClassProcessor.java:99)
at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor.stop(JUnitPlatformTestClassProcessor.java:94)
at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.stop(SuiteTestClassProcessor.java:63)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
at java.base/java.lang.reflect.Method.invoke(Method.java:580)
at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:36)
at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
at org.gradle.internal.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:33)
at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:92)
at jdk.proxy1/jdk.proxy1.$Proxy4.stop(Unknown Source)
at org.gradle.api.internal.tasks.testing.worker.TestWorker$3.run(TestWorker.java:200)
at org.gradle.api.internal.tasks.testing.worker.TestWorker.executeAndMaintainThreadName(TestWorker.java:132)
at org.gradle.api.internal.tasks.testing.worker.TestWorker.execute(TestWorker.java:103)
at org.gradle.api.internal.tasks.testing.worker.TestWorker.execute(TestWorker.java:63)
at org.gradle.process.internal.worker.child.ActionExecutionWorker.execute(ActionExecutionWorker.java:56)
at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:121)
at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:71)
at worker.org.gradle.process.internal.worker.GradleWorkerMain.run(GradleWorkerMain.java:69)
at worker.org.gradle.process.internal.worker.GradleWorkerMain.main(GradleWorkerMain.java:74)
> Task :test FAILED
HappyPathTest > testRender() FAILED
java.lang.NullPointerException at HappyPathTest.kt:9
1 test completed, 1 failed
Here is my build.gradle.kts. I've followed the guide at https://plugins.jetbrains.com/docs/intellij/tools-intellij-platform-gradle-plugin-dependencies-extension.html#testing to install all the needed test dependencies..
import org.jetbrains.intellij.platform.gradle.IntelliJPlatformType
import org.jetbrains.intellij.platform.gradle.TestFrameworkType
import org.jetbrains.intellij.platform.gradle.models.ProductRelease
plugins {
application
id("java")
id("org.jetbrains.intellij.platform") version "2.2.0"
kotlin("jvm") version "1.9.20"
kotlin("plugin.serialization") version "1.9.20"
}
group = "dev.sweep"
version = "1.3.10"
repositories {
mavenCentral()
intellijPlatform {
defaultRepositories()
}
}
intellijPlatform {
buildSearchableOptions.set(false)
pluginConfiguration {
name.set("Sweep AI")
}
pluginVerification {
ides {
select {
types.set(
listOf(
IntelliJPlatformType.IntellijIdeaUltimate,
IntelliJPlatformType.IntellijIdeaCommunity,
// IntelliJPlatformType.GoLand,
// IntelliJPlatformType.PyCharmCommunity,
IntelliJPlatformType.PyCharmProfessional,
// IntelliJPlatformType.CLion,
// IntelliJPlatformType.Rider,
// IntelliJPlatformType.AndroidStudio,
// IntelliJPlatformType.WebStorm,
)
)
channels.set(listOf(ProductRelease.Channel.RELEASE))
sinceBuild.set("241")
untilBuild.set("243.*")
}
}
}
}
tasks {
// Need JDK 17 for Intellij 2024.1.7
withType<JavaCompile> {
sourceCompatibility = "17"
targetCompatibility = "17"
}
withType<org.jetbrains.kotlin.gradle.tasks.KotlinCompile> {
kotlinOptions.jvmTarget = "17"
}
patchPluginXml {
sinceBuild.set("241")
untilBuild.set("243.*")
}
signPlugin {
certificateChain.set(System.getenv("CERTIFICATE_CHAIN"))
privateKey.set(System.getenv("PRIVATE_KEY"))
password.set(System.getenv("PRIVATE_KEY_PASSWORD"))
}
publishPlugin {
token.set(System.getenv("PUBLISH_TOKEN"))
}
buildPlugin {
archiveBaseName.set("sweepai")
}
runIde {
jvmArgs("-Xmx2g") // Set maximum heap size
jvmArgs("-XX:ReservedCodeCacheSize=512m") // Set code cache size
jvmArgs("-XX:+UseG1GC") // Use G1 garbage collector
jvmArgs("-XX:SoftRefLRUPolicyMSPerMB=50") // Soft references policy
jvmArgs("-ea") // Enable assertions
jvmArgs("-Djava.net.preferIPv4Stack=true") // Prefer IPv4
jvmArgs("-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=5005")
}
task<Exec>("format") {
group = "format"
commandLine("./bin/format")
}
task<Exec>("installPlugin") {
group = "plugin"
commandLine("./bin/install")
}
task<Exec>("uninstallPlugin") {
group = "plugin"
commandLine("./bin/uninstall")
}
test {
useJUnitPlatform()
systemProperty("idea.force.use.core.classloader", "true")
systemProperty("idea.use.core.classloader.for.plugin.path", "true")
}
verifyPlugin {}
}
dependencies {
implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.5.1")
implementation("org.commonmark:commonmark:0.21.0")
implementation("com.flipkart.zjsonpatch:zjsonpatch:0.4.14") {
// Exclude Jackson dependencies since we'll use IntelliJ's
exclude(group = "com.fasterxml.jackson.core")
exclude(group = "com.fasterxml.jackson.databind")
}
testImplementation("junit:junit:4.13.2")
testImplementation("io.kotest:kotest-assertions-core:5.6.2")
testImplementation("org.junit.jupiter:junit-jupiter:5.9.2")
testRuntimeOnly("org.junit.jupiter:junit-jupiter-engine:5.8.1")
intellijPlatform {
// https://www.jetbrains.com/idea/download/other.html
// intellijIdeaCommunity("2024.3.1")
intellijIdeaCommunity("2024.2.5")
// intellijIdeaCommunity("2024.1.7")
bundledPlugins("org.intellij.plugins.markdown", "Git4Idea")
testFramework(TestFrameworkType.Platform)
}
}
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Hi Kevin,
You mix two JUnit framework versions.
LightPlatformTestCaseis JUnit3-based, but@Testannotation is from JUnit5.I don't see a JUnit5-based counterpart for
LightPlatformTestCase(only LightPlatform4TestCase), so I suggest using the default (3), or 4 if you need.