// Verify that suppression is disabled
        try {
            exception.addSuppressed(new Exception("Test suppressed"));
            // If suppression is disabled, getSuppressed should return empty array
            assertEquals(0, exception.getSuppressed().length);
        } catch (Exception e) {
            // If an exception is thrown when trying to add suppressed, that's also valid
            // since suppression is disabled

      } finally {
        assertThat(thrownException.getSuppressed()).isEmpty();
        closer.close();
      }
    } catch (IOException caught) {
      assertThat(caught).isEqualTo(thrownException);
    }

    assertTrue(c1.isClosed());
    assertTrue(c2.isClosed());

    ImmutableSet<Throwable> suppressed = ImmutableSet.copyOf(thrownException.getSuppressed());
    assertEquals(2, suppressed.size());

      } finally {
        assertThat(thrownException.getSuppressed()).isEmpty();
        closer.close();
      }
    } catch (IOException caught) {
      assertThat(caught).isEqualTo(thrownException);
    }

    assertTrue(c1.isClosed());
    assertTrue(c2.isClosed());

    ImmutableSet<Throwable> suppressed = ImmutableSet.copyOf(thrownException.getSuppressed());
    assertEquals(2, suppressed.size());

    assertThat(expected).hasCauseThat().hasMessageThat().isEqualTo("kaboom!");
    assertTrue(service.shutDownCalled);
    assertEquals(Service.State.FAILED, service.state());
    assertThat(expected.getCause().getSuppressed()[0]).hasMessageThat().isEqualTo("double kaboom!");
  }

  private class ThrowOnRunService extends AbstractExecutionThreadService {
    private boolean shutDownCalled = false;

    assertThat(expected).hasCauseThat().hasMessageThat().isEqualTo("kaboom!");
    assertTrue(service.shutDownCalled);
    assertEquals(Service.State.FAILED, service.state());
    assertThat(expected.getCause().getSuppressed()[0]).hasMessageThat().isEqualTo("double kaboom!");
  }

  private class ThrowOnRunService extends AbstractExecutionThreadService {
    private boolean shutDownCalled = false;

        RuntimeException suppressed = new RuntimeException("Suppressed exception");
        exception.addSuppressed(suppressed);
        assertEquals(1, exception.getSuppressed().length);
        assertEquals(suppressed, exception.getSuppressed()[0]);
    }

    @Test
    public void test_constructor_withSuppressionDisabled() {
        // Test protected constructor with suppression disabled

      fail("runTearDown should have thrown an exception");
    } catch (RuntimeException expected) {
      assertThat(expected).hasMessageThat().isEqualTo("two");
      assertThat(getOnlyElement(asList(expected.getSuppressed())))
          .hasMessageThat()
          .isEqualTo("one");
    }

    assertEquals(true, tearDownOne.ran);
    assertEquals(true, tearDownTwo.ran);
  }

  @Override

      fail("runTearDown should have thrown an exception");
    } catch (RuntimeException expected) {
      assertThat(expected).hasMessageThat().isEqualTo("two");
      assertThat(getOnlyElement(asList(expected.getSuppressed())))
          .hasMessageThat()
          .isEqualTo("one");
    }

    assertEquals(true, tearDownOne.ran);
    assertEquals(true, tearDownTwo.ran);
  }

  @Override

   */
  private static int runSuppressionFailureTest(ByteSource in, ByteSink out) {
    try {
      in.copyTo(out);
      fail();
    } catch (IOException expected) {
      return expected.getSuppressed().length;
    }
    throw new AssertionError(); // can't happen
  }

  private static ByteSource newNormalByteSource() {
    return ByteSource.wrap(new byte[10]);
  }

        mainException.addSuppressed(suppressedException);

        Throwable[] suppressed = mainException.getSuppressed();
        assertNotNull(suppressed);
        assertEquals(1, suppressed.length);
        assertEquals(suppressedException, suppressed[0]);
        assertEquals("Suppressed exception", suppressed[0].getMessage());