void isAllDigitsTrueForPureNumeric(String numeric) {
        assertTrue(UniAddress.isAllDigits(numeric));
    }

    @ParameterizedTest
    @ValueSource(strings = { "12a", "abc", "123 " })
    void isAllDigitsFalseForNonNumeric(String nonNumeric) {
        assertFalse(UniAddress.isAllDigits(nonNumeric));
    }

    @Test
    void isAllDigitsHandlesEmptyString() {

    }

    @Test
    @DisplayName("Setter and getter for mechanismToken work")
    void setGetMechanismToken() {
        TestSpnegoToken t = new TestSpnegoToken();
        byte[] data = new byte[] { 1, 2, 3 };
        t.setMechanismToken(data);
        assertArrayEquals(data, t.getMechanismToken(), "mechanismToken should round-trip");

        // Document current behavior: no defensive copy (reference exposed)

    public void test_getArtifactFromFileName_complexName() {
        Artifact artifact = pluginHelper.getArtifactFromFileName(ArtifactType.DATA_STORE, "fess-ds-web-crawler-1.2.3-beta.jar");
        assertEquals("fess-ds-web-crawler", artifact.getName());
        assertEquals("1.2.3-beta", artifact.getVersion());
    }

    public void test_getArtifactFromFileName_singleVersion() {

        assertSame(second, retrieved2);
    }

    public void test_multiple_components() {
        String comp1 = "component1";
        String comp2 = "component2";
        Integer comp3 = 123;

        ComponentUtil.register(comp1, "name1");
        ComponentUtil.register(comp2, "name2");
        ComponentUtil.register(comp3, "name3");

        assertEquals(comp1, ComponentUtil.getComponent("name1"));

        assertProvideThrowsException("Test\nClassification");
    }

    public void test_provide_withNumericValues() {
        // Test classification names with numeric values
        assertProvideThrowsException("123");
        assertProvideThrowsException("0");
        assertProvideThrowsException("-1");
        assertProvideThrowsException("Test123");
        assertProvideThrowsException("123Test");

    assertEquals(ImmutableList.of(789L, 123L), ImmutableList.copyOf(convertedValues));

    Iterator<Long> iterator = convertedValues.iterator();
    iterator.next();
    iterator.remove();
    assertEquals(ImmutableList.of("123"), mutableList);
  }

  public void testReverse() {
    Converter<Long, String> reverseConverter = STR_TO_LONG.reverse();

    assertEquals(STR_VAL, reverseConverter.convert(LONG_VAL));

    }

    @Test
    @DisplayName("Test reset(int, String) method")
    void testResetWithParameters() {
        // Test overloaded reset method
        transaction.reset(123, "lastTest");
        assertTrue(transaction.hasMoreElements(), "hasMoreElements should be true after reset");
    }

    @Test
    @DisplayName("Test hasMoreElements() initially returns true")

			},
			metadata: map[string]string{
				"content-type": "image/png",
			},
			shouldFail: false,
		},
		// Validate if there are no keys to extract.
		{
			header: http.Header{
				"Test-1": []string{"123"},
			},
			metadata:   map[string]string{},
			shouldFail: false,
		},
		// Validate that there are all headers extracted
		{
			header: http.Header{
				"X-Amz-Meta-Appid":   []string{"amz-meta"},

    class EncodingTests {

        @Test
        @DisplayName("Should encode value correctly")
        void testEncode() throws NdrException {
            // Given: NdrShort with test value
            int testValue = 123;
            NdrShort ndrShort = new NdrShort(testValue);

            // When: Encoding the value
            ndrShort.encode(mockBuffer);

            // Then: Should call enc_ndr_short with masked value

        SmbComNegotiateResponse smb1 = new SmbComNegotiateResponse(ctx);
        ServerData sd = smb1.getServerData();
        sd.encryptionKey = new byte[] { 1, 2, 3 };
        setField(transport, "negotiated", smb1);
        assertArrayEquals(new byte[] { 1, 2, 3 }, transport.getServerEncryptionKey());

        // SMB2 negotiation never exposes key via this API
        setField(transport, "negotiated", new Smb2NegotiateResponse(cfg));