*     // operate on tuple
   *   }
   * }
   * }
   *
   * <p>Note that if any input list is empty, the Cartesian product will also be empty. If no lists
   * at all are provided (an empty list), the resulting Cartesian product has one element, an empty
   * list (counter-intuitive, but mathematically consistent).
   *

	return nil
}

// Validate returns an error if key is empty
func (kv BatchJobKV) Validate() error {
	if kv.Key == "" {
		return BatchJobYamlErr{
			line: kv.line,
			col:  kv.col,
			msg:  "key can't be empty",
		}
	}
	return nil
}

// Empty indicates if kv is not set
func (kv BatchJobKV) Empty() bool {
	return kv.Key == "" && kv.Value == ""
}

        assertEquals("\\domain\share2", entries[1].getName(), "The name of the second share should be correct.");
    }

    /**
     * Test the getEntries() method when the DfsEnumArray200 is empty.
     * Verifies that an empty array is returned.
     */
    @Test
    void testGetEntries_Empty() {
        // Given
        MsrpcDfsRootEnum dfsRootEnum = new MsrpcDfsRootEnum("test-server");

            assertEquals(0, map.size());
        }

        // Test with empty values
        configParameters = "config.empty=\nfield.xpath.empty=";
        result = ParameterUtil.createConfigParameterMap(configParameters);
        assertEquals(1, result.get(ConfigName.CONFIG).size());
        assertEquals("", result.get(ConfigName.CONFIG).get("empty"));
        assertEquals(1, result.get(ConfigName.XPATH).size());

     *
     * @param in the input file (must not be {@literal null})
     * @param inputEncoding the input file encoding (must not be {@literal null} or empty)
     * @param out the output file (must not be {@literal null})
     * @param outputEncoding the output file encoding (must not be {@literal null} or empty)
     * @return the number of characters copied
     */

  fun peek(): Headers? = null

  @Throws(IOException::class)
  fun get(): Headers

  companion object {
    @JvmField
    val EMPTY: TrailersSource =
      object : TrailersSource {
        override fun peek() = Headers.EMPTY

        override fun get() = Headers.EMPTY
      }
  }

        assertNotNull(e.getOptions(), "Options map should not be null");
        assertTrue(e.getOptions().isEmpty(), "Default options should be empty");
    }

    @ParameterizedTest
    @NullSource
    @ValueSource(strings = { "", "svc/******@****.***" })
    @DisplayName("Name parameter is ignored (null/empty/arbitrary)")
    void nameParameter_isIgnoredAndDoesNotAffectResult(String name) {
        // Arrange

	if err != nil {
		t.Fatalf("%s : %s", instanceType, err.Error())
	}

	// Put an empty directory
	_, err = obj.PutObject(context.Background(), "test-getobjectinfo", "Asia/empty-dir/", mustGetPutObjReader(t, bytes.NewBufferString(""), int64(len("")), "", ""), opts)
	if err != nil {
		t.Fatalf("%s : %s", instanceType, err.Error())
	}

        }
      }
      dummy ^= sb.toString().length();
    }
    return dummy;
  }

  /**
   * Only appends delimiter if the accumulated string is non-empty. Note: this isn't a candidate
   * implementation for Joiner since it fails on leading empty components.
   */
  @Benchmark
  int stringBuilderIsEmpty(int reps) {
    int dummy = 0;
    for (int i = 0; i < reps; i++) {

    @Test
    @DisplayName("writeBytesWireFormat handles empty string gracefully")
    void testWriteEmptyString() {
        when(mockConfig.getOemEncoding()).thenReturn("windows-1252");
        SmbComQueryInformation emptyCmd = new SmbComQueryInformation(mockConfig, "");
        byte[] buffer = new byte[10];
        int used = emptyCmd.writeBytesWireFormat(buffer, 0);
        assertEquals(2, used, "Empty path results in only command byte and NUL");