@Test
    @DisplayName("send with explicit null varargs propagates exception from implementation")
    void send_nullVarargsArray_throws() throws Exception {
        // Arrange: passing explicit null vararg array is edge scenario
        when(tree.send(eq(request), isNull())).thenThrow(new CIFSException("null params"));

        // Act + Assert

    void testCapacityEdgeValues(long capacity) {
        when(mockAllocInfo.getCapacity()).thenReturn(capacity);
        assertEquals(capacity, mockAllocInfo.getCapacity());
    }

    /**
     * Null pointer scenario – calls on a null reference should raise
     * {@link NullPointerException}. This test is defensive; in real code it
     * would likely be handled elsewhere.
     */
    @Test

        // Test close without any file
        ResponseData data = new ResponseData();
        data.close(); // Should not throw exception
    }

    public void test_complexScenario() {
        // Test complex scenario with multiple operations
        ResponseData data = new ResponseData();

        // Set various properties
        data.setUrl("https://example.com/page");
        data.setHttpStatusCode(200);

        // data1 should also be modified (same object)
        assertEquals("https://modified.com", data1.getUrl());
    }

    public void test_complexScenarioWithGet() {
        // Test complex scenario with GET method
        RequestData data = RequestDataBuilder.newRequestData().get().url("https://api.example.com/users/123").weight(0.8f).build();

        assertEquals(Method.GET, data.getMethod());

        // Initial update - should mark as changed
        entry.updateChild(childName, 1024L, 1000L, false, 0x20, 500L, 800L);
        assertTrue(entry.hasChanges());

        // Clear changes to test next scenario
        entry.markComplete();
        assertFalse(entry.hasChanges());

        // Update with same values - should not mark as changed (no actual change)

        String result = queue.toString();
        assertNotNull(result);
        assertTrue(result.contains("UrlQueueImpl"));
    }

    public void test_complexScenario() {
        // Test complex scenario with all fields
        UrlQueueImpl<Long> queue = new UrlQueueImpl<>();

        Long id = 999L;
        String sessionId = "crawl-session-123";
        String method = "POST";

        Handler handler = new Handler();
        Handler.GcsURLConnection conn = (Handler.GcsURLConnection) handler.openConnection(url);

        // Ensure environment variables are not set (in real scenario)
        // In this test, we expect IOException when project ID is blank
        try {
            conn.connect();
            fail("Should throw IOException when project ID is not set");

        // Act
        SmbSession result = handle.getSession();

        // Assert
        assertNull(result);
        verify(handle).getSession();
    }

    @Test
    @DisplayName("Scenario: verify interaction order across multiple calls")
    void verifyInteractionOrder() throws Exception {
        // Arrange: stub simple returns
        when(handle.hasCapability(anyInt())).thenReturn(true);

        assertEquals(State.CLOSED, circuitBreaker.getState(), "Circuit should be CLOSED after success threshold");

        // Test max attempts in half-open with failure scenario
        circuitBreaker.trip(); // Open again
        Thread.sleep(1100); // Wait for reset

        // First attempt transitions to HALF_OPEN
        try {

        }
    }

    /**
     * Test typical server configuration scenario
     */
    @Test
    @DisplayName("Test typical server configuration scenario")
    public void testTypicalServerConfiguration() {
        // Given - typical SMB server configuration
        serverData.sflags = (byte) 0x98;