Testing

You are viewing the documentation for the new actor APIs, to view the Akka Classic documentation, see Classic Testing.

Module info

The Akka dependencies are available from Akka’s library repository. To access them there, you need to configure the URL for this repository.

sbt
resolvers += "Akka library repository".at("https://repo.akka.io/maven")
Maven
<project>
  ...
  <repositories>
    <repository>
      <id>akka-repository</id>
      <name>Akka library repository</name>
      <url>https://repo.akka.io/maven</url>
    </repository>
  </repositories>
</project>
Gradle
repositories {
    mavenCentral()
    maven {
        url "https://repo.akka.io/maven"
    }
}

To use Actor TestKit add the module to your project:

sbt
val AkkaVersion = "2.9.7"
libraryDependencies += "com.typesafe.akka" %% "akka-actor-testkit-typed" % AkkaVersion % Test
Maven
<properties>
  <scala.binary.version>2.13</scala.binary.version>
</properties>
<dependencyManagement>
  <dependencies>
    <dependency>
      <groupId>com.typesafe.akka</groupId>
      <artifactId>akka-bom_${scala.binary.version}</artifactId>
      <version>2.9.7</version>
      <type>pom</type>
      <scope>import</scope>
    </dependency>
  </dependencies>
</dependencyManagement>
<dependencies>
  <dependency>
    <groupId>com.typesafe.akka</groupId>
    <artifactId>akka-actor-testkit-typed_${scala.binary.version}</artifactId>
    <scope>test</scope>
  </dependency>
</dependencies>
Gradle
def versions = [
  ScalaBinary: "2.13"
]
dependencies {
  implementation platform("com.typesafe.akka:akka-bom_${versions.ScalaBinary}:2.9.7")

  testImplementation "com.typesafe.akka:akka-actor-testkit-typed_${versions.ScalaBinary}"
}

We recommend using Akka TestKit with ScalaTest:

sbt
libraryDependencies += "org.scalatest" %% "scalatest" % "3.2.17" % Test
Maven
<properties>
  <scala.binary.version>2.13</scala.binary.version>
</properties>
<dependencies>
  <dependency>
    <groupId>org.scalatest</groupId>
    <artifactId>scalatest_${scala.binary.version}</artifactId>
    <version>3.2.17</version>
    <scope>test</scope>
  </dependency>
</dependencies>
Gradle
def versions = [
  ScalaBinary: "2.13"
]
dependencies {
  testImplementation "org.scalatest:scalatest_${versions.ScalaBinary}:3.2.17"
}
Project Info: Akka Actor Testkit (typed)
Artifact
com.typesafe.akka
akka-actor-testkit-typed
2.9.7
JDK versions
Eclipse Temurin JDK 11
Eclipse Temurin JDK 17
Eclipse Temurin JDK 21
Scala versions2.13.14, 3.3.3
JPMS module nameakka.actor.testkit.typed
License
Readiness level
Supported, support is available from Lightbend
Since 2.6.0, 2019-11-06
Home pagehttps://akka.io/
API documentation
Forums
Release notesakka.io blog
IssuesGithub issues
Sourceshttps://github.com/akka/akka

Introduction

Testing can either be done asynchronously using a real ActorSystemActorSystem or synchronously on the testing thread using the BehaviorTestKitBehaviorTestKit.

For testing logic in a BehaviorBehavior in isolation synchronous testing is preferred, but the features that can be tested are limited. For testing interactions between multiple actors a more realistic asynchronous test is preferred.

Those two testing approaches are described in:

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