// Prevent network operations by default
        doReturn(mockLocator).when(smbFile).getLocator();
    }

    @Nested
    class WhenCreatingInstances {

        @Test
        void testConstructorWithURL() throws MalformedURLException {
            // Arrange & Act
            SmbFile file = new SmbFile(url, mockCifsContext);

            // Assert
            assertNotNull(file);