return false;
        }
        final LlmClient client = getClient();
        final boolean isAvailable = client != null && client.isAvailable();
        if (logger.isTraceEnabled()) {
            logger.trace("[LLM] LLM availability check. llmType={}, clientFound={}, isAvailable={}", llmType, client != null, isAvailable);
        }
        return isAvailable;
    }

    /**

        // Test null input handling
        try {
            KuromojiCSVUtil.quoteEscape(null);
            fail("Should throw NullPointerException for null input");
        } catch (NullPointerException e) {
            // Expected behavior
        }
    }

    @Test
    public void test_parse_null_input() {
        // Test null input handling
        try {

        CIFSContext nullConfigContext = mock(CIFSContext.class);
        when(nullConfigContext.getConfig()).thenReturn(null);

        // When
        Smb2TreeDisconnectResponse response = request.createResponse(nullConfigContext, request);

        // Then - response is created even with null config
        assertNotNull(response);
    }

    @Test

    }

    @AfterEach
    public void tearDown() throws Exception {
        if (directoryLeaseManager != null) {
            directoryLeaseManager.shutdown();
        }
        if (baseLeaseManager != null) {
            baseLeaseManager.shutdown();
        }
        if (mocks != null) {
            mocks.close();
        }
    }

    @Test

    @Test
    @DisplayName("Test with null pipe name")
    void testWithNullPipeName() {
        // Given
        transCallNamedPipe = new TransCallNamedPipe(mockConfig, null, TEST_DATA, 0, TEST_DATA.length);

        // When
        String result = transCallNamedPipe.toString();

        // Then
        assertNotNull(result);
        assertTrue(result.contains("pipeName=null"));
    }

    @Test

      NodeAndRemainingSuccessors<N> prev = stack.peekLast();
      stack.addLast(top);

      N node = top.node;
      N previousNode = prev == null ? null : prev.node;
      if (top.remainingSuccessors == null) {
        NodeVisitState state = visitedNodes.get(node);
        if (state == NodeVisitState.COMPLETE) {
          stack.removeLast();
          continue;
        }

    }
  }

  @Test
  fun `close with zombie write`() {
    val afterRemoveCleanFileContents = if (windows) "a" else null
    val afterRemoveDirtyFileContents = if (windows) "" else null

    set("k1", "a", "a")
    val editor = cache.edit("k1")!!
    val sink0 = editor.newSink(0)
    cache.remove("k1")

    lateinit var providedBy: Set<String>

    private
    lateinit var selected: String

    private
    var upgrade: String? = null

    internal
    fun configure(components: ComponentMetadataHandler, configurations: ConfigurationContainer) {
        if (upgrade != null) {
            configurations.forceUpgrade(selected, upgrade!!)
        } else {
            providedBy.forEachIndexed { idx, provider ->

      }
    }
    out.close();

    // Check that source returns the right data
    assertThat(source.read()).isEqualTo(data);

    // Make sure that reset deleted the file
    out.reset();
    if (file != null) {
      assertFalse(file.exists());
    }
  }


  public void testThreshold_resetWhenGarbageCollected() throws Exception {
    testThreshold(0, 100, true, true);
    testThreshold(10, 100, true, true);

    for (CaseFormat outer : CaseFormat.values()) {
      for (CaseFormat inner : CaseFormat.values()) {
        assertThat(outer.converterTo(inner).convert(null)).isNull();
        assertThat(outer.converterTo(inner).reverse().convert(null)).isNull();
      }
    }
  }

  public void testConverter_toString() {
    assertThat(LOWER_HYPHEN.converterTo(UPPER_CAMEL).toString())