}

    public void test_register_overwrite() {
        String first = "first";
        String second = "second";
        String componentName = "testComponent";

        ComponentUtil.register(first, componentName);
        String retrieved1 = ComponentUtil.getComponent(componentName);
        assertSame(first, retrieved1);

        ComponentUtil.register(second, componentName);

            if (first.getPath() != null) {
                expectedPathConsumed -= (first.getPath().length() + 1);
            }
            assertEquals(expectedPathConsumed, combined.getPathConsumed());
        }

        @Test
        @DisplayName("Should combine when first has null path")
        void testCombineWithNullPath() {
            // Create first with null path

	DB.First(&animal, animal.Counter)
	if animal.Name != "galeone" {
		t.Errorf("Name fields shouldn't be changed if untouched, but got %v", animal.Name)
	}

	// When changing a field with a default value, the change must occur
	animal.Name = "amazing horse"
	DB.Save(&animal)
	DB.First(&animal, animal.Counter)
	if animal.Name != "amazing horse" {

        buffer.order(ByteOrder.LITTLE_ENDIAN);

        // First notification with nextEntryOffset pointing to second
        int secondOffset = 48;
        buffer.putInt(secondOffset); // nextEntryOffset to second entry
        buffer.putInt(FileNotifyInformation.FILE_ACTION_ADDED);
        String fileName1 = "first.txt";
        byte[] fileNameBytes1 = fileName1.getBytes("UTF-16LE");

        // Should alternate between channels
        ChannelInfo first = loadBalancer.selectChannel(mockMessage);
        ChannelInfo second = loadBalancer.selectChannel(mockMessage);

        assertNotNull(first);
        assertNotNull(second);
        // Due to round-robin, should get different channels or same order
        assertTrue(Arrays.asList(channel1, channel2).contains(first));

    }
  }

  /**
   * Constructs an {@code ImmutableSortedSet} from the first {@code n} elements of {@code contents}.
   * If {@code k} is the size of the returned {@code ImmutableSortedSet}, then the sorted unique
   * elements are in the first {@code k} positions of {@code contents}, and {@code contents[i] ==
   * null} for {@code k <= i < n}.
   *

        // Load data first
        protwordsFile.reload(null);

        // Test with offset out of bounds
        PagingList<ProtwordsItem> list = protwordsFile.selectList(100, 10);
        assertEquals(0, list.size());
        assertTrue(list.isEmpty());
    }

    public void test_selectList_negativeOffset() {
        // Load data first
        protwordsFile.reload(null);

//
//	// Find the first user with name jinzhu
//	db.Where("name = ?", "jinzhu").First(&user)
//	// Find the first user with name jinzhu and age 20
//	db.Where(&User{Name: "jinzhu", Age: 20}).First(&user)
//	// Find the first user with name jinzhu and age not equal to 20
//	db.Where("name = ?", "jinzhu").Where("age <> ?", "20").First(&user)
//
// [docs]: https://gorm.io/docs/query.html#Conditions

            },
            directExecutor());

    // Wait for the first task to be started in the background. It will block until we explicitly
    // stop it.
    blockingCallable.waitForStart();

    // Give the second task a chance to (incorrectly) start up while the first task is running.
    assertThat(future2.isDone()).isFalse();

    // Stop the first task. The second task should then run.
    blockingCallable.stop();

        String result = StringUtil.join(null, "first", "second", "third");
        assertEquals("firstnullsecondnullthird", result);
    }

    @Test
    @DisplayName("Should handle null elements in array")
    void testJoinWithNullElements() {
        String result = StringUtil.join(",", "first", null, "third");
        assertEquals("first,null,third", result);
    }

    @Test