zeebe-worker-java-testutils

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zeebe-worker-java-testutils

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Utilities to test Zeebe workers implemented in Java

zeebe-worker-java-testutils 최신버젼 다운로드

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# Zeebe Worker Java Test Utilities

Utilities to test Zeebe workers implemented in Java.

This library makes the implementation of unit tests for Zeebe workers easier:

```java
public class DivisionHandlerTest {

private final DivisionHandler sutDivisionHandler = new DivisionHandler();

@Test
  public void shouldDivideFourByTwo() {
    // given
    final var stubJobClient = new JobClientStub();
    final var stubActivatedJob = stubJobClient.createActivatedJob();

stubActivatedJob.setInputVariables(Map.of("a", 4L, "b", 2L));
    // set other fields as required
    //   stubActivatedJob.setBpmnProcessId("division_process");
    //   stubActivatedJob.setRetries(5);
    //   stubActivatedJob.setWorker("division_worker");
    //   ...

// when
    sutDivisionHandler.handle(stubJobClient, stubActivatedJob);

// then
    assertThat(stubActivatedJob).completed().extractingOutput().containsOnly(entry("result", 2d));
  }

@Test
  public void shouldThrowErrorWhenDividingByZero() {
    // given
    final var stubJobClient = new JobClientStub();
    final var stubActivatedJob = stubJobClient.createActivatedJob();

stubActivatedJob.setInputVariables(Map.of("a", 4L, "b", 0L));

// when
    sutDivisionHandler.handle(stubJobClient, stubActivatedJob);

// then
    assertThat(stubActivatedJob)
      .threwError()
      .hasErrorCode("division-by-zero")
      .extractingErrorMessage()
      .containsIgnoringCase("cannot divide")
      .containsIgnoringCase("by zero");
  }

@Test
  public void shouldFailWhenInputInvalid() {
    // given
    final var stubJobClient = new JobClientStub();
    final var stubActivatedJob = stubJobClient.createActivatedJob();

stubActivatedJob.setInputVariables(Map.of("a", 4L, "b", "INVALID INPUT"));

// when
    sutDivisionHandler.handle(stubJobClient, stubActivatedJob);

// then
    assertThat(stubActivatedJob).failed().hasRetries(0).hasErrorMessage("exception occurred");
  }
}
```

Look at `samples` package to see more examples.

## Things to Know

* calling `requestTimeout(...)` has no effect at all on any of the stubs
* Exceptions thrown by aim to be class-compatible with the original exceptions
  * They won't, however, have the exact same messages as the real ones
  * Likewise, they have a different caused-by chain very different stacktraces

## Contributing

* [Code of Conduct](CODE_OF_CONDUCT.md)
* [Contribution Guide](CONTRIBUTING.md)

zeebe-worker-java-testutils

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