doc.put("content", "コンテンツ");

        languageHelper.updateDocument(doc);

        assertEquals("ja", doc.get("lang"));
        assertEquals("既存のタイトル", doc.get("title_ja")); // Should remain unchanged
        assertEquals("コンテンツ", doc.get("content_ja"));
    }

    @Test
    public void test_detectLanguage_blank() {
        assertNull(languageHelper.detectLanguage(null));

- kube-dns is unchanged at v1.14.13 since Kubernetes 1.12 ([#68900](https://github.com/kubernetes/kubernetes/pull/68900))
- Influxdb is unchanged at v1.3.3 since Kubernetes 1.10 ([#53319](https://github.com/kubernetes/kubernetes/pull/53319))
- Grafana is unchanged at v4.4.3 since Kubernetes 1.10 ([#53319](https://github.com/kubernetes/kubernetes/pull/53319))

   *
   * <p>In this case, {@code collection} was not modified as a result of the {@code add()} call, and
   * the test will fail because the number of occurrences of {@code existingElement} is unchanged.
   *
   * @param elements expected additional contents of {@link #container}
   */
  protected final void expectAdded(E... elements) {
    List<E> expected = copyToList(getSampleElements());
    expected.addAll(asList(elements));

        // When
        int bytesWritten = response.writeBytesWireFormat(buffer, 10);

        // Then
        assertEquals(0, bytesWritten);
        assertArrayEquals(originalBuffer, buffer); // Buffer should remain unchanged
    }

    @Test
    @DisplayName("Should handle null configuration gracefully")
    void testNullConfiguration() {
        // When - constructor accepts null config without throwing

     * IPv6 addresses are wrapped in brackets, IPv4 addresses are returned as-is.
     *
     * @param address the IP address string to format
     * @return the formatted address (IPv6 with brackets, IPv4 unchanged)
     */
    public static String formatForUrl(final String address) {
        if (address == null) {
            return null;
        }
        if (isIPv6Address(address)) {

- kube-dns is unchanged at v1.14.13 since Kubernetes 1.12 ([#68900](https://github.com/kubernetes/kubernetes/pull/68900))
- Influxdb is unchanged at v1.3.3 since Kubernetes 1.10 ([#53319](https://github.com/kubernetes/kubernetes/pull/53319))
- Grafana is unchanged at v4.4.3 since Kubernetes 1.10 ([#53319](https://github.com/kubernetes/kubernetes/pull/53319))

            Object[] args = inv.getArguments();
            String server = (String) args[0];
            CIFSContext c = (CIFSContext) args[1];
            assertNull(server); // We will pass null; method should forward it unchanged
            assertSame(ctx, c);
            SID[] toResolve = (SID[]) args[2];
            for (int i = 0; i < toResolve.length; i++) {
                toResolve[i].type = jcifs.SID.SID_TYPE_USER;

            smbComTreeDisconnect.readParameterWordsWireFormat(originalBuffer, 50);
            smbComTreeDisconnect.readBytesWireFormat(originalBuffer, 50);

            // Then - buffer should remain unchanged since all methods return 0
            assertArrayEquals(bufferCopy, originalBuffer);
        }
    }

    /**
     * Test inheritance from ServerMessageBlock
     */
    @Test

- CNI remains unchanged at v0.7.5. ([#75455](https://github.com/kubernetes/kubernetes/pull/75455))
- CSI remains unchanged at to v1.1.0. ([#75391](https://github.com/kubernetes/kubernetes/pull/75391))
- The dashboard add-on remains unchanged at v1.10.1. ([#72495](https://github.com/kubernetes/kubernetes/pull/72495))

        assertSame(trans1, result);

        // Verify fail count incremented for addr2 (was 1, now 2)
        assertEquals(2, poolSpy.failCounts.get("10.0.0.2"));
        // addr1's count should remain unchanged since it succeeded
        assertEquals(5, poolSpy.failCounts.get("10.0.0.1"));
    }

    @Test
    @DisplayName("Should throw UnknownHostException for empty address list")