addEdge(N1, N2, E12);
    assertThat(network.inEdges(N2)).containsExactly(E12);
    // Edge direction handled correctly
    assertThat(network.inEdges(N1)).isEmpty();
  }

  @Test
  public void outEdges_oneEdge() {
    addEdge(N1, N2, E12);
    assertThat(network.outEdges(N1)).containsExactly(E12);
    // Edge direction handled correctly
    assertThat(network.outEdges(N2)).isEmpty();
  }

  @Test

    addEdge(N1, N2, E12);
    assertThat(network.inEdges(N2)).containsExactly(E12);
    // Edge direction handled correctly
    assertThat(network.inEdges(N1)).isEmpty();
  }

  @Test
  public void outEdges_oneEdge() {
    addEdge(N1, N2, E12);
    assertThat(network.outEdges(N1)).containsExactly(E12);
    // Edge direction handled correctly
    assertThat(network.outEdges(N2)).isEmpty();
  }

  @Test

        // Mock Postbox - no need to mock, the framework will handle it

        // Register components
        ComponentUtil.register(searchEngineClient, "searchEngineClient");
        ComponentUtil.register(systemHelper, "systemHelper");
        ComponentUtil.setFessConfig(fessConfig);
        ComponentUtil.register(notificationHelper, "notificationHelper");
        // Postbox is handled by the framework

        // Execute

    putEdge(N1, N2);
    assertThat(graph.predecessors(N2)).containsExactly(N1);
    // Edge direction handled correctly
    assertThat(graph.predecessors(N1)).isEmpty();
  }

  @Test
  public void successors_oneEdge() {
    putEdge(N1, N2);
    assertThat(graph.successors(N1)).containsExactly(N2);
    // Edge direction handled correctly
    assertThat(graph.successors(N2)).isEmpty();
  }

  @Test

        // Test edge cases
        generator.setCommandTimeout(0L);
        generator.setCommandTimeout(-1L);
        generator.setCommandTimeout(Long.MAX_VALUE);

        assertTrue("Timeout edge cases should be handled", true);
    }

    // Test ProcessDestroyer inner class
    public void test_processDestroyer_creation() throws Exception {
        // We can't directly test ProcessDestroyer without creating actual processes,

        try {
            aggregateLogJob.execute();
            fail("OutOfMemoryError should not be caught by Exception handler");
        } catch (OutOfMemoryError e) {
            // Expected - OutOfMemoryError is not caught by Exception handler
            assertEquals("Simulated OOM", e.getMessage());
        }
    }

    public void test_execute_multipleDifferentExceptions() {

        // Execute
        final InvalidQueryException exception = new InvalidQueryException(messageCode, longMessage);

        // Verify long message is handled correctly
        assertNotNull(exception);
        assertEquals(longMessage, exception.getMessage());
        assertEquals(messageCode, exception.getMessageCode());
    }

                && queue.removeLastOccurrence(submittedTask);
        // If the delegate is directExecutor(), the submitted runnable could have thrown a REE. But
        // that's handled by the log check that catches RuntimeExceptions in the queue worker.
        if (!(t instanceof RejectedExecutionException) || removed) {
          throw t;
        }
      }
      return;
    }

    /*

        assertEquals("test_session_123", options.sessionId);
    }

    public void test_process_withPropertiesPath() throws Exception {
        // Test that properties path is properly handled
        // Create temporary properties file
        File propFile = File.createTempFile("test", ".properties");
        propFile.deleteOnExit();

 * This is typical for Java but atypical for HTTP/2. This is motivated by exception transparency:
 * an [IOException] that was triggered by a certain caller can be caught and handled by that caller.
 */
@Suppress("NAME_SHADOWING")
class Http2Connection internal constructor(
  builder: Builder,
) : Closeable,
  Lockable {