Writing Tests

You can use the zeebe-test module to write JUnit tests for your job worker and BPMN workflow. It provides a JUnit rule to bootstrap the broker and some basic assertions.

Usage in a Maven project

Add zeebe-test as Maven test dependency to your project:


Bootstrap the Broker

Use the ZeebeTestRule in your test case to start an embedded broker. It contains a client which can be used to deploy a BPMN workflow or create an instance.

import io.zeebe.client.ZeebeClient;
import io.zeebe.client.api.events.WorkflowInstanceEvent;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;

public class MyTest {

  @Rule public final ZeebeTestRule testRule = new ZeebeTestRule();

  private ZeebeClient client;

  public void test() {
    client = testRule.getClient();

    final WorkflowInstanceEvent workflowInstance =

Verify the Result

The ZeebeTestRule provides also some basic assertions in AssertJ style. The entry point of the assertions is ZeebeTestRule.assertThat(...).

final WorkflowInstanceEvent workflowInstance = ...

    .hasPassed("start", "task", "end")
    .hasVariables("result", 21.0);