when(pipe.getUncPath()).thenReturn(unc);
        return new SmbPipeHandleImpl(pipe);
    }

    @Test
    @DisplayName("ensureTreeConnected acquires and reuses the tree handle")
    void ensureTreeConnected_acquireAndReuse() throws Exception {
        // Arrange
        SmbPipeHandleImpl handle = newHandleWithBasicStubs(0, "\\\\pipe\\\\test");
        when(pipe.ensureTreeConnected()).thenReturn(tree);