"Test events were not received" when run tests using Intellij

your most likey not tellinig the system how to run the tests.

on your class header define a test runner like this for example:

@RunWith(MockitoJUnitRunner::class)
class MYTest {//...}

or can define junitX runner , etc

For those who still might have this problem using IntelliJ & Kotlin:

Add the following lines to the build.grade.kts.
I hope it helps some of you.

dependencies {
testImplementation(kotlin("test-junit5"))
testImplementation(platform("org.junit:junit-bom:5.7.0"))
testImplementation("org.junit.jupiter:junit-jupiter")}
tasks.test {
useJUnitPlatform()
testLogging {
events("passed", "skipped", "failed")
}
}

PS: without adding the "task." before test{...} I was getting the following error!

> the function invoke() is not found

In my case I had an invalid Gradle JVM configuration (configured jdk was removed from filesystem).

To Fix it had to change Gradle JVM on File -> Settings -> Build, Execution, Deployment -> Build Tools -> Gradle -> Gradle JVM.

It was red due to an invalid JDK path.

IntelliJ version: 2019.2.3

For a Spring boot, gradle project using IntelliJ, my issue was that Spring Boot currently brings JUnit 5 with it. I had also manually installed JUnit 5 as well.

After deleting `compile 'org.junit.jupiter:junit-jupiter-api:5.6.3'` in `build.gradle` my tests began to work again.

make sure you are using the correct @Test annotation which is from org.junit.Test;
Sometimes while auto importing it can get the annotation from some other library. for ex - org.junit.jupiter.api.Test;

Try add

testRuntimeOnly("org.junit.vintage:junit-vintage-engine:5.7.2")

if your tests use the older `org.junit.Test` instead of `org.junit.jupiter.api.Test`

This is the solution worked for me:

File -> Settings -> Build, Execution, Deployment -> Build Tools -> Gradle

Switching Gradle JVM to: JAVA_HOME version 11.0.10 worked.

Before it was Project SDK.
[![enter image description here][1]][1]


[1]:

I ran into this issue and it turned out that I had written JUnit 4 tests in a module that was configured for JUnit 5. The solution was to use JUnit 5 imports in my test class:

import org.junit.jupiter.api.Assertions.*
import org.junit.jupiter.api.Test

For me 'resetting' the Gradle setting worked.

[![enter image description here][1]][1]


[1]:

If you are using Kotlin DSL as your gradle script then adding the following did the trick for me:

tasks.withType<Test> {
useJUnitPlatform() // Make all tests use JUnit 5
}

Explanation: Above idiomatic Kotlin DSL makes all tasks with type Test to use JUnit 5 platform which is required for test to work.