}

    @Test
    @DisplayName("getErrorString for name service error with unknown code")
    void testNameServiceUnknown() {
        int unknown = 99;
        String expected = "ERR_NAM_SRVC/Unknown error code: 99";
        assertEquals(expected, NbtException.getErrorString(NbtException.ERR_NAM_SRVC, unknown));
    }

    @ParameterizedTest(name = "session error {1} -\\u003e {2}")

                "Message should contain the corresponding fault message.");
    }

    /**
     * Test constructor DcerpcException(int error) with an unknown error code.
     */
    @Test
    void testConstructorWithError_unknownCode() {
        int errorCode = 0x12345678; // An arbitrary unknown error code
        DcerpcException exception = new DcerpcException(errorCode);

            assertEquals("0x0004", getResultMessageMethod.invoke(null, 4), "Should return hex format for unknown code 4");
            assertEquals("0x00FF", getResultMessageMethod.invoke(null, 255), "Should return hex format for unknown code 255");
            assertEquals("0x1000", getResultMessageMethod.invoke(null, 4096), "Should return hex format for large unknown code");
        }

        @Test

                Arguments.of(NbtException.ERR_NAM_SRVC, NbtException.IMP_ERR, "ERR_NAM_SRVC/Unknown error code: 4"),
                Arguments.of(NbtException.ERR_NAM_SRVC, NbtException.RFS_ERR, "ERR_NAM_SRVC/Unknown error code: 5"),
                Arguments.of(NbtException.ERR_NAM_SRVC, NbtException.ACT_ERR, "ERR_NAM_SRVC/Unknown error code: 6"),

    }

    @Test
    @DisplayName("Should get unknown name")
    void testGetUnknownName() {
        // When
        NetbiosName unknownName = nameServiceClient.getUnknownName();

        // Then
        assertNotNull(unknownName, "Unknown name should not be null");
        assertEquals("0.0.0.0", unknownName.getName(), "Unknown name should be 0.0.0.0");
    }

    @Test

		},
		{
			name:    "unknown key XAmzMetaName is error as it does not appear in policy",
			fv:      defaultFormVals.Clone().Set(xhttp.AmzMetaName, "my-name"),
			wantErr: `Each form field that you specify in a form must appear in the list of policy conditions. "X-Amz-Meta-Name" not specified in the policy.`,
		},
		{
			name:    "unknown key XAmzChecksumAlgo is error as it does not appear in policy",

                        + System.getProperty("maven.home", "<unknown Maven " + "home>")))
                .append(ls);
        version.append("Java version: ")
                .append(System.getProperty("java.version", "<unknown Java version>"))
                .append(", vendor: ")
                .append(System.getProperty("java.vendor", "<unknown vendor>"))
                .append(", runtime: ")

    /**
     *
     *
     *             The path/URL of the POM or {@code null} if
     * unknown.
     *
     *
     */
    private String location;

    /**
     *
     *
     *             The location of the POM from which this POM was
     * imported from or {@code null} if unknown.
     */
    private InputLocation importedFrom;

    /**
     * Cached hashCode for performance.
     */

     * @param source The source of the problem, may be {@code null}.
     * @param lineNumber The one-based index of the line containing the error or {@code -1} if unknown.
     * @param columnNumber The one-based index of the column containing the error or {@code -1} if unknown.
     * @param exception The exception that caused this problem, may be {@code null}.
     */
    // mkleint: does this need to be public?
    public DefaultModelProblem(

    }

    // Edge: unknown service returns null per stub
    @Test
    @DisplayName("getSmbTree unknown service returns null as stubbed")
    void getSmbTree_unknownService() {
        when(session.getSmbTree(eq("share"), eq("UNKNOWN"))).thenReturn(null);
        assertNull(session.getSmbTree("share", "UNKNOWN"));
        verify(session).getSmbTree("share", "UNKNOWN");
    }