Пример #1
0
  @Test
  public void with_circuit_breaker() throws Throwable {
    // exactly as before but with a circuit breaker
    CircuitBreakerPolicy.addCircuitBreaker("cb1", 500, 1);
    WithIntegrationPoint example = new WithIntegrationPoint();
    try {
      example.run(1);
    } catch (MyOwnException e) {
      try {
        // repeat but get different exception
        example.run(1);
      } catch (CircuitOpenException ee) {
        try {
          new DejaVuEngine().replay(callback.getTrace());
          Assert.fail("Must throw CircuitOpenException");
        } catch (CircuitOpenException eee) {

        }
      }
    }
  }
Пример #2
0
  @Test
  public void exceed_threshold() {

    CircuitBreaker breaker = new CircuitBreaker("cb1", 500, 2);
    CircuitBreakerPolicy.addCircuitBreaker(breaker);
    WithIntegrationPoint example = new WithIntegrationPoint();
    try {
      Assert.assertTrue(breaker.isClosed());
      example.run(1);
      Assert.fail("first crash");
    } catch (MyOwnException e) {
      Assert.assertTrue("breaker must still be closed", breaker.isClosed());
      try {
        example.run(1);
        Assert.fail("second crash");
      } catch (MyOwnException ee) {
        Assert.assertTrue(breaker.isOpen());
        try {
          example.run(1);
          Assert.fail("third must be of type CircuitOpenException");
        } catch (CircuitOpenException eee) {
          Assert.assertTrue(breaker.isOpen());
          try {
            Thread.sleep(600);
            // should now be set to half open
            Assert.assertTrue(breaker.isHalfOpen());
            // should succeed
            example.run(0);
            Assert.assertTrue(breaker.isClosed());
          } catch (InterruptedException e1) {
            Assert.fail();
          }
        }
      }
    }
  }