SID sid = new SID("S-1-5-21-1-2");
            sid.initContext("srv", mockCtx);

            // First accessor triggers resolution
            int t1 = sid.getType();
            assertEquals(t1, sid.getType()); // second call should not trigger again
            verify(mockResolver, times(1)).resolveSids(eq(mockCtx), eq("srv"), any(jcifs.SID[].class));
        }

        @Test

                if (i < len && data[i] == '.') {
                    dots++;
                    i++;
                }
            }
        }

        return false;
    }

    /**
     * Perform DNS SRV lookup on successively shorter suffixes of name
     * and return successful suffix or throw an UnknownHostException.
     * import javax.naming.*;
     * import javax.naming.directory.*;

            assertDoesNotThrow(() -> new MsrpcSamrConnect2("\\\\srv", -42, ph));
        }

        @Test
        @DisplayName("should handle null policy handle")
        void testNullPolicyHandleHandled() {
            // Act & Assert - The constructor accepts null policy handle without throwing
            assertDoesNotThrow(() -> new MsrpcSamrConnect2("\\\\srv", 0, null));
        }

        @Test

        }
    }

    @Test
    @DisplayName("Should handle special characters in names")
    void testSpecialCharacters() {
        String[] testNames = { "SERVER-1", "SERVER_A", "SRV123", "MY-SRV" };

        for (String testName : testNames) {
            when(mockNetbiosName.getName()).thenReturn(testName);
            assertEquals(testName, mockNetbiosName.getName());
        }
    }

    @Test

        // Query parameter 'server' takes precedence
        UniAddress a1 = mock(UniAddress.class);
        when(nsc.getByName("srv-from-query")).thenReturn(a1);
        SmbResourceLocatorImpl l1 = locator("smb://host/share?server=srv-from-query");
        assertSame(a1, l1.getAddress());

        // Query parameter 'address' builds UniAddress from IP

        // Create a spy to track method calls
        SmbTreeConnection c = spy(newConn());

        // Prepare a minimal locator
        SmbResourceLocatorImpl loc = new SmbResourceLocatorImpl(ctx, smbUrl("smb://srv/share/path"));

        // Setup a tree that will fail with transport error first, then succeed
        SmbTreeImpl tree = mock(SmbTreeImpl.class);
        when(tree.acquire(false)).thenReturn(tree);

            } catch (final IOException ioe) {
                // Failure
            }
        }
        throw new UnknownHostException(hostname);
    }

    /**
     * Perform DNS SRV lookup on successively shorter suffixes of name
     * and return successful suffix or throw an UnknownHostException.
    import javax.naming.*;
    import javax.naming.directory.*;

        sambaServer = new GenericContainer<>(IMAGE_NAME).withExposedPorts(139, 445)//
                .withCopyFileToContainer(mountablePublic, "/share")//
                .withCopyFileToContainer(mountableUsers, "/srv")
                .withCopyFileToContainer(mountableTestuser1, "/testuser1")//
                .withCopyFileToContainer(mountableTestuser2, "/testuser2")//
                .withCopyFileToContainer(mountableEmpty, "/empty")//

        when(cfg.isTraceResourceUsage()).thenReturn(false);
        stubValidTree(8L, true, true);

        SmbFileHandleImpl h = new SmbFileHandleImpl(cfg, new byte[] { 1, 2, 3 }, tree, "//srv/share", 0, 0, 0, 0, 0L);

        // Increase usage to 2
        h.acquire();

        // First release: should not close yet
        h.release();

        sambaServer = new GenericContainer<>(IMAGE_NAME).withExposedPorts(139, 445)//
                .withCopyFileToContainer(mountablePublic, "/share")//
                .withCopyFileToContainer(mountableUsers, "/srv")
                .withCopyFileToContainer(mountableTestuser1, "/testuser1")//
                .withCopyFileToContainer(mountableTestuser2, "/testuser2")//
                .withCommand(//