SmbFileInputStream in = newStream();
            assertEquals(0, in.available());
        }

        @Test
        @DisplayName("skip: positive advances; non-positive returns 0")
        void skipBehavior() throws Exception {
            SmbFileInputStream in = newStream();
            assertEquals(0, in.skip(0));
            assertEquals(0, in.skip(-1));
            assertEquals(5, in.skip(5));
        }
    }