verify(treeHandle, never()).acquire();
    }

    @Test
    @DisplayName("Constructor should handle null parent")
    void testConstructor_NullParent_ThrowsNPE() {
        // When & Then: Null parent should cause NullPointerException
        assertThrows(NullPointerException.class, () -> new NetServerEnumIterator(null, treeHandle, "*", 0, null));
    }

    @Test
    @DisplayName("Constructor should handle null tree handle")

import static org.junit.Assert.assertTrue;

import java.lang.reflect.Array;
import java.util.List;

import org.junit.Test;

/**
 * @author higa
 *
 */
public class ArrayUtilTest {

    /**
     * @throws Exception
     */
    @Test
    public void testAsArray() throws Exception {
        assertArrayEquals(new int[] { 1, 2 }, ArrayUtil.asIntArray(1, 2));

		nonTieredTest(16, 4, 11),
	}
	for i, test := range tests {
		t.Run(fmt.Sprintf("Test %d", i+1), func(t *testing.T) {
			if got := listObjectParities(test.metaArr, test.errs); !slices.Equal(got, test.parities) {
				t.Fatalf("Expected parities %v but got %v", test.parities, got)
			}
			if got := commonParity(test.parities, len(test.metaArr)/2); got != test.parity {

        String params = "test";
        byte[] buffer = createBuffer(10, dataBytes, params);

        // Verify buffer structure
        assertTrue(buffer.length >= 14, "Buffer should contain header, params and data");
    }

    @Test
    public void testByteOperations() {
        // Test byte operations that were used in the original test
        byte b = (byte) 0xFF;
        int value = b & 0xFF;

    }

    /**
     * Test getIndicesForAlias method with existing alias.
     * Verifies that the method correctly retrieves indices for a given alias.
     */
    @Test
    @SuppressWarnings("unchecked")
    public void testGetIndicesForAlias_existingAlias() throws Exception {
        final String indexName = "test-index-001";
        final String aliasName = "test-alias";

        // Create index with alias

        assertEquals(o, SerializeUtil.fromBinaryToObject(binary));
    }

    /**
     * Test default filter allows common safe classes
     *
     * @throws Exception
     */
    public void testFromBinaryToObject_DefaultFilter_AllowsSafeClasses() throws Exception {
        // Test String
        final String str = "test string";
        byte[] binary = SerializeUtil.fromObjectToBinary(str);

            assertEquals("smb://test/file.txt", t.url, "URL should be parsed");
        }

        @Test
        @DisplayName("Flags can be in any order")
        void flagsInDifferentOrder() {
            TestLocking t = new TestLocking();

            // Parse flags in different order
            String[] args = { "smb://test/file.txt", "-i", "4", "-t", "2", "-d", "150" };

The `TestClient` is based on [HTTPX](https://www.python-httpx.org), and luckily, we can use it directly to test the API.

## Example { #example }

import org.dbflute.optional.OptionalThing;
import org.junit.jupiter.api.Test;

/**
 * Concurrency and thread-safety tests for RankFusionProcessor.
 * Tests the improvements made to thread safety using CopyOnWriteArrayList.
 */
public class RankFusionProcessorConcurrencyTest extends UnitFessTestCase {

    private static final String ID_FIELD = "_id";

    /**
     * Test concurrent registration of searchers from multiple threads.

    }

    @Test
    void testEqualsNullSafe() {
        assertFalse(new ActivationProperty().equals(null));

        new ActivationProperty().equals(new ActivationProperty());
    }

    @Test
    void testEqualsIdentity() {
        ActivationProperty thing = new ActivationProperty();
        assertTrue(thing.equals(thing), "Expected " + thing + " to equal " + thing);
    }

    @Test
    void testToStringNullSafe() {