ok-testing-reloaded-medium

SparkRunner.java

public class SparkRunner extends BlockJUnit4ClassRunner {

  private Class<? extends SparkApplicationContainer> applicationContainer;
  /* ... */

  private void scanAnnotation() {
    SparkApplicationTest annotation = getTestClass().getAnnotation(SparkApplicationTest.class);

    applicationContainer = annotation.value();
    /* ... */
  }

  private void sparkBootstrap() throws IllegalAccessException, InstantiationException {
    /* ... */
    applicationContainer.newInstance().sparkApplication().init();
    /* ... */
  }
  /* ... */
}

TwitterAppTest.java

@RunWith(SparkRunner.class)
@SparkApplicationTest(value = TestApplicationContainer.class, port = 4444)
public class TwitterAppTest {

  @Test
  public void testAgain() throws IOException {
    final Request request = new Request.Builder()
      .get()
      .url("http://localhost:4444/statuses/retweets/200")
      .build();

    final Response response = okHttpClient.newCall(request).execute();

    assertThat(response)
      .isOk()
      .hasContentType("application/json")
      .jsonPath("$.length()", Integer.class, 100)
      .jsonPath("$[0].id", Integer.class, 200)
      .jsonPath("$[0].user.name", String.class, "Maria Moccachino");
  }
}