}

    @Test
    @DisplayName("Test isAsync method returning true")
    void testIsAsyncTrue() {
        // Given
        when(response.isAsync()).thenReturn(true);

        // When
        boolean isAsync = response.isAsync();

        // Then
        assertTrue(isAsync);
        verify(response).isAsync();
    }

    @Test
    @DisplayName("Test isAsync method returning false")

    }

    @Test
    @DisplayName("DOS_ERROR_CODES is non‑null and non‑empty")
    void testCodesArrayExistence() {
        assertNotNull(DosError.DOS_ERROR_CODES, "DOS_ERROR_CODES should be non‑null");
        assertTrue(DosError.DOS_ERROR_CODES.length > 0, "DOS_ERROR_CODES should contain at least one mapping");
    }

    @Test
    @DisplayName("Each error code mapping contains exactly two ints")

import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;

import java.lang.reflect.Field;

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.CsvSource;
import org.junit.jupiter.params.provider.ValueSource;
import org.mockito.Mock;

    }

    @Test
    @DisplayName("Test compression context type")
    public void testContextType() {
        assertEquals(CompressionNegotiateContext.NEGO_CTX_COMPRESSION_TYPE, context.getContextType());
    }

    @Test
    @DisplayName("Test supported algorithms")
    public void testSupportedAlgorithms() {

        response = new Smb2SetInfoResponse(mockConfig);
    }

    @Test
    @DisplayName("Test constructor initializes with config")
    void testConstructor() {
        assertNotNull(response);
        // Command is not set in constructor, only after decoding
        assertEquals((short) 0, response.getCommand());
    }

    @Test
    @DisplayName("Test writeBytesWireFormat returns 0")
    void testWriteBytesWireFormat() {

    }

    /**
     * All wire‑format methods should return zero regardless of inputs.
     */
    @Nested
    @DisplayName("Wire format method behaviour")
    class WireFormatMethods {
        @ParameterizedTest
        @ValueSource(ints = { 0, 1, -1, Integer.MAX_VALUE, Integer.MIN_VALUE })
        @DisplayName("writeSetupWireFormat returns 0 for all indices")
        void writeSetupWireFormatReturnsZero(int index) {

import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.verifyNoInteractions;
import static org.mockito.Mockito.verifyNoMoreInteractions;
import static org.mockito.Mockito.when;

import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.CsvSource;

        // Act
        out.close();

        // Assert
        verifyNoInteractions(handle);
    }

    @Nested
    @DisplayName("Constructor invalid inputs")
    class ConstructorInvalidInputs {
        @Test
        @DisplayName("Null handle triggers NullPointerException")
        void ctor_nullHandle_throwsNPE() {
            // Act + Assert

            // Available if context is established and integrity is supported
            return this.established && this.integrity;
        }
    }

    @Nested
    @DisplayName("Happy path behavior")
    class HappyPath {
        @Test
        @DisplayName("All getters return configured values and MIC roundtrips")
        void testAllMethodsHappyPath() throws Exception {
            // Arrange

    }

    private UpgradeContext createMockContext() {
        return TestUtils.createMockContext();
    }

    @Nested
    @DisplayName("Strategy Execution")
    class StrategyExecutionTests {

        @Test
        @DisplayName("should execute all applicable strategies")
        void shouldExecuteAllApplicableStrategies() throws Exception {
            UpgradeContext context = createMockContext();