  @Test
  public void shouldCreateSagaInstance() {


    when(sagaManager.create(sagaData1)).thenReturn(expectedSi1);
    when(sagaManager.create(sagaData2)).thenReturn(expectedSi2);

    SagaInstance si1 = sagaInstanceFactory.create(saga, sagaData1);
    assertEquals(expectedSi1, si1);
    verify(sagaManagerFactory, times(1)).make(saga);

    SagaInstance si2 = sagaInstanceFactory.create(saga, sagaData2);
    assertEquals(expectedSi2, si2);
    verify(sagaManagerFactory, times(1)).make(saga);
  }