// Test interface method
        byte level = mockFileInfo.getFileInformationLevel();
        assertEquals(FileInformation.FILE_BASIC_INFO, level);

        // Verify interaction
        verify(mockFileInfo).getFileInformationLevel();
    }

    /**
     * Test FileInformation as Decodable
     */
    @Test
    @DisplayName("Test FileInformation decode method")

            if (tc == null) {
                throw new NullPointerException("tc");
            }
            // Exercise interaction with dependency for verification purposes
            // These methods do not throw and allow interaction checks.
            tc.getConfig();
            tc.getCredentials();

            // Minimal behavior: return a mock SSPContext with lenient stubbing

        int apply(FileEntry e);
    }

    private interface LongGetter {
        long apply(FileEntry e);
    }

    // --- Mockito-based interaction tests ---

    @Test
    @DisplayName("Mocked FileEntry returns stubbed values and verifies interactions")
    void mockedEntry_happyPath_and_interactions() {
        // Arrange: stub all methods with representative values

    void supportsIntegrity_alwaysTrue() {
        assertTrue(ctx.supportsIntegrity());
    }

    @Test
    @DisplayName("calculateMIC returns value from GSS and verifies interaction")
    void calculateMIC_success() throws Exception {
        byte[] data = new byte[] { 1, 2, 3 };
        byte[] mic = new byte[] { 9, 8 };
        when(gssContext.getMIC(eq(data), eq(0), eq(3), any())).thenReturn(mic);

            int result = resp.readDataWireFormat(buffer, 0, 50);
            assertEquals(0, result);
            assertNull(resp.info);
        }
    }

    @Nested
    @DisplayName("Mock Interaction Tests")
    class MockInteractionTests {

        @Test
        @DisplayName("Should interact with mock Info interface")
        void testMockInfoInteraction() {
            // Create a mock of the Info interface

        verify(tree, times(1)).release(); // closed after exhaustion
    }

    @ParameterizedTest
    @ValueSource(strings = { "", "file.txt", "subdir" })
    @DisplayName("Name filter interaction: accept calls and rejections")
    void nameFilterAccepts(String acceptedName) throws Exception {
        // Arrange
        stubAcquireReturnsSelf();
        when(nameFilter.accept(any(), any())).thenReturn(false);

        // Avoid real JAAS by stubbing getSubject
        doReturn(new Subject()).when(auth).getSubject();

        // Act
        CredentialsInternal result = auth.renew();

        // Assert interaction and return value
        assertSame(auth, result);
        verify(auth, times(1)).getSubject();
    }

    D --> F
```

## Testing Strategy

### Unit Tests
- Individual component testing for each feature
- Mock-based testing for protocol interactions
- State machine validation

### Integration Tests
- Feature interaction testing
- Network failure simulation
- Performance benchmarking
- Compatibility testing with Windows Server 2016/2019/2022

### Test Infrastructure Requirements

                    session.getConfig();
                }
            }, "Should propagate cleanup exceptions");
        }
    }

    @Nested
    @DisplayName("Mock Interaction Tests")
    class MockInteractionTest {

        @Test
        @DisplayName("Should allow all methods to be mocked independently")
        void shouldAllowAllMethodsToBeMockedIndependently() throws Exception {

    void ensureDFSResolvedDelegates() throws Exception {
        // Confirms DFS resolution is delegated with the correct locator
        // Act
        handle.ensureDFSResolved();
        // Assert & interaction verify
        verify(treeConnection).ensureDFSResolved(resourceLoc);
    }

    @Test
    @DisplayName("hasCapability delegates and propagates exceptions")
    void hasCapabilityDelegates() throws Exception {