verify(smbFileHandle, times(1)).getInitialSize();
    }

    /**
     * Test getInitialSize() when the size is zero.
     */
    @Test
    void testGetInitialSize_zero() {
        long expectedSize = 0L;
        when(smbFileHandle.getInitialSize()).thenReturn(expectedSize);
        long actualSize = smbFileHandle.getInitialSize();