public void testAbsent() {
    assertEquals(
        "Map.merge(absent, value, function) should return value",
        v3(),
        getMap()
            .merge(
                k3(),
                v3(),
                (oldV, newV) -> {
                  throw new AssertionFailedError(
                      "Should not call merge function if key was absent");
                }));
    expectAdded(e3());
  }

  public void testAddAllAtIndex_supportedNothing() {
    assertFalse("addAll(n, nothing) should return false", getList().addAll(0, emptyCollection()));
    expectUnchanged();
  }

  @ListFeature.Require(absent = SUPPORTS_ADD_WITH_INDEX)
  public void testAddAllAtIndex_unsupportedNothing() {
    try {
      assertFalse(
          "addAll(n, nothing) should return false or throw",
          getList().addAll(0, emptyCollection()));

        // 1. Class should be final (or have private constructor)
        Constructor<?>[] constructors = SystemUtil.class.getDeclaredConstructors();
        assertEquals("Should have exactly one constructor", 1, constructors.length);
        assertTrue("Constructor should be private", java.lang.reflect.Modifier.isPrivate(constructors[0].getModifiers()));

        // 2. All methods should be static

            assertNotNull(description, "Description should not be null");
            assertFalse(description.trim().isEmpty(), "Description should not be empty");
            assertTrue(
                    description.toLowerCase().contains("compatibility")
                            || description.toLowerCase().contains("fix"),
                    "Description should mention compatibility or fix");
        }
    }

        @Test
        @DisplayName("Should throw exception when encoding null UUID")
        void testPolicyHandleEncodeNullUuidThrowsException() {
            // Given: A policy handle with null UUID
            rpc.policy_handle policyHandle = new rpc.policy_handle();
            policyHandle.type = 123;
            policyHandle.uuid = null;

            // When/Then: Should throw NdrException

        assertEquals(fileName, notifications.get(0).getFileName());
    }

    @Test
    @DisplayName("Should test isErrorResponseStatus with various status codes")
    void testIsErrorResponseStatus() throws Exception {
        // Test with NT_STATUS_NOTIFY_ENUM_DIR - should not be error
        setStatus(response, NtStatus.NT_STATUS_NOTIFY_ENUM_DIR);
        assertFalse(response.isErrorResponseStatus());

    void testToStringFormat() {
        String str = response.toString();

        // Should start with the class name
        assertTrue(str.startsWith("Trans2SetFileInformationResponse["));

        // Should end with closing bracket
        assertTrue(str.endsWith("]"));

        // Should contain parent toString content
        // Note: The parent toString might include various fields

def test_response_dependency_returns_different_response_instance():
    """Dependency that returns a different Response instance should work.

    When a dependency returns a new Response object (e.g., JSONResponse) instead
    of modifying the injected one, the returned response should be used and any
    modifications to it in the endpoint should be preserved.
    """
    app = FastAPI()

    def default_response() -> Response:

            assertEquals(expectedFlags, message.getFlags(), "Default flags should be set correctly");
            assertNull(message.getChallenge(), "Challenge should initially be null");
            assertNull(message.getTarget(), "Target should initially be null");
            assertNull(message.getTargetInformation(), "Target information should be null when no target is set");
        }

        @Test

    class ConstructorTests {

        @Test
        @DisplayName("Should create response with configuration")
        void testConstructor() {
            Smb2EchoResponse response = new Smb2EchoResponse(mockConfig);
            assertNotNull(response);
            assertEquals(mockConfig, response.getConfig());
        }

        @Test
        @DisplayName("Should extend ServerMessageBlock2Response")
        void testInheritance() {